Merge pull request #3737 from qlyoung/doc-move-topotest-to-devdocs

doc: move topotests docs to developers guide

10 files changed, 2553 insertions, 1046 deletions

diff --git a/doc/developer/conf.py b/doc/developer/conf.py
index 254c9f6bf..ad501ae39 100644
--- a/doc/developer/conf.py
+++ b/doc/developer/conf.py
@@ -131,7 +131,7 @@ language = None
 
 # List of patterns, relative to source directory, that match files and
 # directories to ignore when looking for source files.
-exclude_patterns = ['_build', 'building-libyang.rst']
+exclude_patterns = ['_build', 'building-libyang.rst', 'topotests-snippets.rst']
 
 # The reST default role (used for this markup: `text`) to use for all
 # documents.
diff --git a/doc/developer/index.rst b/doc/developer/index.rst
index 9838e1098..3a33d9a5e 100644
--- a/doc/developer/index.rst
+++ b/doc/developer/index.rst
@@ -9,6 +9,7 @@ FRRouting Developer's Guide
    packaging
    process-architecture
    library
+   testing
    bgpd
    ospf
    zebra
diff --git a/doc/developer/subdir.am b/doc/developer/subdir.am
index 575722a80..19910e762 100644
--- a/doc/developer/subdir.am
+++ b/doc/developer/subdir.am
@@ -38,6 +38,9 @@ dev_RSTFILES = \
 	doc/developer/ospf-api.rst \
 	doc/developer/ospf-sr.rst \
 	doc/developer/ospf.rst \
+	doc/developer/testing.rst \
+	doc/developer/topotests-snippets.rst \
+	doc/developer/topotests.rst \
 	doc/developer/workflow.rst \
 	doc/developer/zebra.rst \
 	# end
diff --git a/doc/developer/testing.rst b/doc/developer/testing.rst
new file mode 100644
index 000000000..6396faf9a
--- /dev/null
+++ b/doc/developer/testing.rst
@@ -0,0 +1,10 @@
+.. _testing:
+
+*******
+Testing
+*******
+
+.. toctree::
+   :maxdepth: 2
+
+   topotests
diff --git a/doc/developer/topotests-snippets.rst b/doc/developer/topotests-snippets.rst
new file mode 100644
index 000000000..649229b43
--- /dev/null
+++ b/doc/developer/topotests-snippets.rst
@@ -0,0 +1,272 @@
+.. _topotests-snippets:
+
+Snippets
+--------
+
+This document will describe common snippets of code that are frequently needed
+to perform some test checks.
+
+Checking for router / test failures
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+The following check uses the topogen API to check for software failure (e.g.
+zebra died) and/or for errors manually set by ``Topogen.set_error()``.
+
+.. code:: py
+
+   # Get the topology reference
+   tgen = get_topogen()
+
+   # Check for errors in the topology
+   if tgen.routers_have_failure():
+       # Skip the test with the topology errors as reason
+       pytest.skip(tgen.errors)
+
+Checking FRR routers version
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+This code snippet is usually run after the topology setup to make sure all
+routers instantiated in the topology have the correct software version.
+
+.. code:: py
+
+   # Get the topology reference
+   tgen = get_topogen()
+
+   # Get the router list
+   router_list = tgen.routers()
+
+   # Run the check for all routers
+   for router in router_list.values():
+       if router.has_version('<', '3'):
+           # Set topology error, so the next tests are skipped
+           tgen.set_error('unsupported version')
+
+A sample of this snippet in a test can be found `here
+<ldp-vpls-topo1/test_ldp_vpls_topo1.py>`__.
+
+Interacting with equipment
+^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+You might want to interact with the topology equipments during the tests and
+there are different ways to do so.
+
+Notes:
+
+1. When using the Topogen API, all the equipments code derive from ``Topogear``
+   (`lib/topogen.py <lib/topogen.py>`__). If you feel brave you can look by
+   yourself how the abstractions that will be mentioned here works.
+
+2. When not using the ``Topogen`` API there is only one way to interact with
+   the equipments, which is by calling the ``mininet`` API functions directly
+   to spawn commands.
+
+Interacting with the Linux sandbox
+""""""""""""""""""""""""""""""""""
+
+Without ``Topogen``:
+
+.. code:: py
+
+   global net
+   output = net['r1'].cmd('echo "foobar"')
+   print 'output is: {}'.format(output)
+
+With ``Topogen``:
+
+.. code:: py
+
+   tgen = get_topogen()
+   output = tgen.gears['r1'].run('echo "foobar"')
+   print 'output is: {}'.format(output)
+
+Interacting with VTYSH
+""""""""""""""""""""""
+
+Without ``Topogen``:
+
+.. code:: py
+
+   global net
+   output = net['r1'].cmd('vtysh "show ip route" 2>/dev/null')
+   print 'output is: {}'.format(output)
+
+With ``Topogen``:
+
+.. code:: py
+
+   tgen = get_topogen()
+   output = tgen.gears['r1'].vtysh_cmd("show ip route")
+   print 'output is: {}'.format(output)
+
+``Topogen`` also supports sending multiple lines of command:
+
+.. code:: py
+
+   tgen = get_topogen()
+   output = tgen.gears['r1'].vtysh_cmd("""
+   configure terminal
+   router bgp 10
+     bgp router-id 10.0.255.1
+     neighbor 1.2.3.4 remote-as 10
+     !
+   router bgp 11
+     bgp router-id 10.0.255.2
+     !
+   """)
+   print 'output is: {}'.format(output)
+
+You might also want to run multiple commands and get only the commands that
+failed:
+
+.. code:: py
+
+   tgen = get_topogen()
+   output = tgen.gears['r1'].vtysh_multicmd("""
+   configure terminal
+   router bgp 10
+     bgp router-id 10.0.255.1
+     neighbor 1.2.3.4 remote-as 10
+     !
+   router bgp 11
+     bgp router-id 10.0.255.2
+     !
+   """, pretty_output=false)
+   print 'output is: {}'.format(output)
+
+Translating vtysh JSON output into Python structures:
+
+.. code:: py
+
+   tgen = get_topogen()
+   json_output = tgen.gears['r1'].vtysh_cmd("show ip route json", isjson=True)
+   output = json.dumps(json_output, indent=4)
+   print 'output is: {}'.format(output)
+
+   # You can also access the data structure as normal. For example:
+   # protocol = json_output['1.1.1.1/32']['protocol']
+   # assert protocol == "ospf", "wrong protocol"
+
+.. note::
+
+   ``vtysh_(multi)cmd`` is only available for router type of equipments.
+
+Invoking mininet CLI
+^^^^^^^^^^^^^^^^^^^^
+
+Without ``Topogen``:
+
+.. code:: py
+
+   CLI(net)
+
+With ``Topogen``:
+
+.. code:: py
+
+   tgen = get_topogen()
+   tgen.mininet_cli()
+
+Reading files
+^^^^^^^^^^^^^
+
+Loading a normal text file content in the current directory:
+
+.. code:: py
+
+   # If you are using Topogen
+   # CURDIR = CWD
+   #
+   # Otherwise find the directory manually:
+   CURDIR = os.path.dirname(os.path.realpath(__file__))
+
+   file_name = '{}/r1/show_ip_route.txt'.format(CURDIR)
+   file_content = open(file_name).read()
+
+Loading JSON from a file:
+
+.. code:: py
+
+   import json
+
+   file_name = '{}/r1/show_ip_route.json'.format(CURDIR)
+   file_content = json.loads(open(file_name).read())
+
+Comparing JSON output
+^^^^^^^^^^^^^^^^^^^^^
+
+After obtaining JSON output formated with Python data structures, you may use
+it to assert a minimalist schema:
+
+.. code:: py
+
+   tgen = get_topogen()
+   json_output = tgen.gears['r1'].vtysh_cmd("show ip route json", isjson=True)
+
+   expect = {
+     '1.1.1.1/32': {
+       'protocol': 'ospf'
+     }
+   }
+
+   assertmsg = "route 1.1.1.1/32 was not learned through OSPF"
+   assert json_cmp(json_output, expect) is None, assertmsg
+
+``json_cmp`` function description (it might be outdated, you can find the
+latest description in the source code at
+:file:`tests/topotests/lib/topotest.py`
+
+.. code:: text
+
+   JSON compare function. Receives two parameters:
+   * `d1`: json value
+   * `d2`: json subset which we expect
+
+   Returns `None` when all keys that `d1` has matches `d2`,
+   otherwise a string containing what failed.
+
+   Note: key absence can be tested by adding a key with value `None`.
+
+Pausing execution
+^^^^^^^^^^^^^^^^^
+
+Preferably, choose the ``sleep`` function that ``topotest`` provides, as it
+prints a notice during the test execution to help debug topology test execution
+time.
+
+.. code:: py
+
+    # Using the topotest sleep
+    from lib import topotest
+
+    topotest.sleep(10, 'waiting 10 seconds for bla')
+    # or just tell it the time:
+    # topotest.sleep(10)
+    # It will print 'Sleeping for 10 seconds'.
+
+    # Or you can also use the Python sleep, but it won't show anything
+    from time import sleep
+    sleep(5)
+
+iproute2 Linux commands as JSON
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+``topotest`` has two helpers implemented that parses the output of ``ip route``
+commands to JSON. It might simplify your comparison needs by only needing to
+provide a Python dictionary.
+
+.. code:: py
+
+   from lib import topotest
+
+   tgen = get_topogen()
+   routes = topotest.ip4_route(tgen.gears['r1'])
+   expected = {
+     '10.0.1.0/24': {},
+     '10.0.2.0/24': {
+       'dev': 'r1-eth0'
+     }
+   }
+
+   assertmsg = "failed to find 10.0.1.0/24 and/or 10.0.2.0/24"
+   assert json_cmp(routes, expected) is None, assertmsg
diff --git a/doc/developer/topotests.rst b/doc/developer/topotests.rst
new file mode 100644
index 000000000..aa06c8dff
--- /dev/null
+++ b/doc/developer/topotests.rst
@@ -0,0 +1,927 @@
+.. _topotests:
+
+Topotests
+=========
+
+Topotests is a suite of topology tests for FRR built on top of Mininet.
+
+Installation and Setup
+----------------------
+
+Only tested with Ubuntu 16.04 and Ubuntu 18.04 (which uses Mininet 2.2.x).
+
+Instructions are the same for all setups (i.e. ExaBGP is only used for BGP
+tests).
+
+Installing Mininet Infrastructure
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+.. code:: shell
+
+   apt-get install mininet
+   apt-get install python-pip
+   apt-get install iproute
+   pip install ipaddr
+   pip install pytest
+   pip install exabgp==3.4.17 (Newer 4.0 version of exabgp is not yet
+   supported)
+   useradd -d /var/run/exabgp/ -s /bin/false exabgp
+
+Enable Coredumps
+""""""""""""""""
+
+Optional, will give better output.
+
+.. code:: shell
+
+   apt-get install gdb
+   disable apport (which move core files)
+
+Set ``enabled=0`` in ``/etc/default/apport``.
+
+Next, update security limits by changing :file:`/etc/security/limits.conf` to::
+
+   #<domain>      <type>  <item>         <value>
+   *               soft    core          unlimited
+   root            soft    core          unlimited
+   *               hard    core          unlimited
+   root            hard    core          unlimited
+
+Reboot for options to take effect.
+
+FRR Installation
+^^^^^^^^^^^^^^^^
+
+FRR needs to be installed separately. It is assume to be configured like the
+standard Ubuntu Packages:
+
+-  Binaries in :file:`/usr/lib/frr`
+-  State Directory :file:`/var/run/frr`
+-  Running under user ``frr``, group ``frr``
+-  vtygroup: ``frrvty``
+-  config directory: :file:`/etc/frr`
+-  For FRR Packages, install the dbg package as well for coredump decoding
+
+No FRR config needs to be done and no FRR daemons should be run ahead of the
+test. They are all started as part of the test.
+
+Manual FRR build
+""""""""""""""""
+
+If you prefer to manually build FRR, then use the following suggested config:
+
+.. code:: shell
+
+   ./configure \
+       --prefix=/usr \
+       --localstatedir=/var/run/frr \
+       --sbindir=/usr/lib/frr \
+       --sysconfdir=/etc/frr \
+       --enable-vtysh \
+       --enable-pimd \
+       --enable-multipath=64 \
+       --enable-user=frr \
+       --enable-group=frr \
+       --enable-vty-group=frrvty \
+       --with-pkg-extra-version=-my-manual-build
+
+And create ``frr`` user and ``frrvty`` group as follows:
+
+.. code:: shell
+
+   addgroup --system --gid 92 frr
+   addgroup --system --gid 85 frrvty
+   adduser --system --ingroup frr --home /var/run/frr/ \
+      --gecos "FRRouting suite" --shell /bin/false frr
+   usermod -G frrvty frr
+
+Executing Tests
+---------------
+
+Execute all tests with output to console
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+.. code:: shell
+
+   py.test -s -v --tb=no
+
+All test\_\* scripts in subdirectories are detected and executed (unless
+disabled in ``pytest.ini`` file).
+
+``--tb=no`` disables the python traceback which might be irrelevant unless the
+test script itself is debugged.
+
+Execute single test
+^^^^^^^^^^^^^^^^^^^
+
+.. code:: shell
+
+   cd test_to_be_run
+   ./test_to_be_run.py
+
+For further options, refer to pytest documentation.
+
+Test will set exit code which can be used with ``git bisect``.
+
+For the simulated topology, see the description in the python file.
+
+If you need to clear the mininet setup between tests (if it isn't cleanly
+shutdown), then use the ``mn -c`` command to clean up the environment.
+
+StdErr log from daemos after exit
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+To enable the reporting of any messages seen on StdErr after the daemons exit,
+the following env variable can be set::
+
+   export TOPOTESTS_CHECK_STDERR=Yes
+
+(The value doesn't matter at this time. The check is if the env variable exists
+or not) There is no pass/fail on this reporting. The Output will be reported to
+the console::
+
+   export TOPOTESTS_CHECK_MEMLEAK="/home/mydir/memleak_"
+
+This will enable the check and output to console and the writing of the
+information to files with the given prefix (followed by testname), ie
+:file:`/home/mydir/memcheck_test_bgp_multiview_topo1.txt` in case of a memory
+leak.
+
+Collect Memory Leak Information
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+FRR processes have the capabilities to report remaining memory allocations upon
+exit. To enable the reporting of the memory, define an enviroment variable
+``TOPOTESTS_CHECK_MEMLEAK`` with the file prefix, i.e.::
+
+   export TOPOTESTS_CHECK_MEMLEAK="/home/mydir/memleak_"
+
+This will enable the check and output to console and the writing of the
+information to files with the given prefix (followed by testname), ie
+:file:`/home/mydir/memcheck_test_bgp_multiview_topo1.txt` in case of a memory
+leak.
+
+Running Topotests with AddressSanitizer
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+Topotests can be run with AddressSanitizer. It requires GCC 4.8 or newer.
+(Ubuntu 16.04 as suggested here is fine with GCC 5 as default). For more
+information on AddressSanitizer, see
+https://github.com/google/sanitizers/wiki/AddressSanitizer.
+
+The checks are done automatically in the library call of ``checkRouterRunning``
+(ie at beginning of tests when there is a check for all daemons running). No
+changes or extra configuration for topotests is required beside compiling the
+suite with AddressSanitizer enabled.
+
+If a daemon crashed, then the errorlog is checked for AddressSanitizer output.
+If found, then this is added with context (calling test) to
+:file:`/tmp/AddressSanitizer.txt` in Markdown compatible format.
+
+Compiling for GCC AddressSanitizer requires to use ``gcc`` as a linker as well
+(instead of ``ld``). Here is a suggest way to compile frr with AddressSanitizer
+for ``stable/3.0`` branch:
+
+.. code:: shell
+
+   git clone https://github.com/FRRouting/frr.git
+   cd frr
+   git checkout stable/3.0
+   ./bootstrap.sh
+   export CC=gcc
+   export CFLAGS="-O1 -g -fsanitize=address -fno-omit-frame-pointer"
+   export LD=gcc
+   export LDFLAGS="-g -fsanitize=address -ldl"
+   ./configure --enable-shared=no \
+       --prefix=/usr/lib/frr --sysconfdir=/etc/frr \
+       --localstatedir=/var/run/frr \
+       --sbindir=/usr/lib/frr --bindir=/usr/lib/frr \
+       --enable-exampledir=/usr/lib/frr/examples \
+       --with-moduledir=/usr/lib/frr/modules \
+       --enable-multipath=0 --enable-rtadv \
+       --enable-tcp-zebra --enable-fpm --enable-pimd
+   make
+   sudo make install
+   # Create symlink for vtysh, so topotest finds it in /usr/lib/frr
+   sudo ln -s /usr/lib/frr/vtysh /usr/bin/
+
+and create ``frr`` user and ``frrvty`` group as shown above.
+
+.. _topotests_docker:
+
+Running Tests with Docker
+-------------------------
+
+There is a Docker image which allows to run topotests.
+
+Quickstart
+^^^^^^^^^^
+
+If you have Docker installed, you can run the topotests in Docker. The easiest
+way to do this, is to use the make targets from this repository.
+
+Your current user needs to have access to the Docker daemon.  Alternatively you
+can run these commands as root.
+
+.. code:: console
+
+   make topotests
+
+This command will pull the most recent topotests image from Dockerhub, compile
+FRR inside of it, and run the topotests.
+
+Advanced Usage
+^^^^^^^^^^^^^^
+
+Internally, the topotests make target uses a shell script to pull the image and
+spawn the Docker container.
+
+There are several environment variables which can be used to modify the
+behavior of the script, these can be listed by calling it with ``-h``:
+
+.. code:: console
+
+   ./tests/topotests/docker/frr-topotests.sh -h
+
+For example, a volume is used to cache build artifacts between multiple runs of
+the image. If you need to force a complete recompile, you can set
+``TOPOTEST_CLEAN``:
+
+.. code:: console
+
+   TOPOTEST_CLEAN=1 ./tests/topotests/docker/frr-topotests.sh
+
+By default, ``frr-topotests.sh`` will build frr and run pytest. If you append
+arguments and the first one starts with ``/`` or ``./``, they will replace the
+call to pytest. If the appended arguments do not match this patttern, they will
+be provided to pytest as arguments.  So, to run a specific test with more
+verbose logging:
+
+.. code:: console
+
+   ./tests/topotests/docker/frr-topotests.sh -vv -s all-protocol-startup/test_all_protocol_startup.py
+
+And to compile FRR but drop into a shell instead of running pytest:
+
+.. code:: console
+
+   ./tests/topotests/docker/frr-topotests.sh /bin/bash
+
+Development
+^^^^^^^^^^^
+
+The Docker image just includes all the components to run the topotests, but not
+the topotests themselves. So if you just want to write tests and don't want to
+make changes to the environment provided by the Docker image. You don't need to
+build your own Docker image if you do not want to.
+
+When developing new tests, there is one caveat though: The startup script of
+the container will run a ``git-clean`` on its copy of the FRR tree to avoid any
+pollution of the container with build artefacts from the host. This will also
+result in your newly written tests being unavailable in the container unless at
+least added to the index with ``git-add``.
+
+If you do want to test changes to the Docker image, you can locally build the
+image and run the tests without pulling from the registry using the following
+commands:
+
+.. code:: console
+
+   make topotests-build
+   TOPOTEST_PULL=0 make topotests
+
+
+.. _topotests-guidelines:
+
+Guidelines
+----------
+
+Executing Tests
+^^^^^^^^^^^^^^^
+
+To run the whole suite of tests the following commands must be executed at the
+top level directory of topotest:
+
+.. code:: shell
+
+   $ # Change to the top level directory of topotests.
+   $ cd path/to/topotests
+   $ # Tests must be run as root, since Mininet requires it.
+   $ sudo pytest
+
+In order to run a specific test, you can use the following command:
+
+.. code:: shell
+
+   $ # running a specific topology
+   $ sudo pytest ospf-topo1/
+   $ # or inside the test folder
+   $ cd ospf-topo1
+   $ sudo pytest # to run all tests inside the directory
+   $ sudo pytest test_ospf_topo1.py # to run a specific test
+   $ # or outside the test folder
+   $ cd ..
+   $ sudo pytest ospf-topo1/test_ospf_topo1.py # to run a specific one
+
+The output of the tested daemons will be available at the temporary folder of
+your machine:
+
+.. code:: shell
+
+   $ ls /tmp/topotest/ospf-topo1.test_ospf-topo1/r1
+   ...
+   zebra.err # zebra stderr output
+   zebra.log # zebra log file
+   zebra.out # zebra stdout output
+   ...
+
+You can also run memory leak tests to get reports:
+
+.. code:: shell
+
+   $ # Set the environment variable to apply to a specific test...
+   $ sudo env TOPOTESTS_CHECK_MEMLEAK="/tmp/memleak_report_" pytest ospf-topo1/test_ospf_topo1.py
+   $ # ...or apply to all tests adding this line to the configuration file
+   $ echo 'memleak_path = /tmp/memleak_report_' >> pytest.ini
+   $ # You can also use your editor
+   $ $EDITOR pytest.ini
+   $ # After running tests you should see your files:
+   $ ls /tmp/memleak_report_*
+   memleak_report_test_ospf_topo1.txt
+
+Writing a New Test
+^^^^^^^^^^^^^^^^^^
+
+This section will guide you in all recommended steps to produce a standard
+topology test.
+
+This is the recommended test writing routine:
+
+- Write a topology (Graphviz recommended)
+- Obtain configuration files
+- Write the test itself
+- Create a Pull Request
+
+Topotest File Hierarchy
+"""""""""""""""""""""""
+
+Before starting to write any tests one must know the file hierarchy. The
+repository hierarchy looks like this:
+
+.. code:: shell
+
+   $ cd path/to/topotest
+   $ find ./*
+   ...
+   ./README.md # repository read me
+   ./GUIDELINES.md # this file
+   ./conftest.py # test hooks - pytest related functions
+   ./example-test # example test folder
+   ./example-test/__init__.py # python package marker - must always exist.
+   ./example-test/test_template.jpg # generated topology picture - see next section
+   ./example-test/test_template.dot # Graphviz dot file
+   ./example-test/test_template.py # the topology plus the test
+   ...
+   ./ospf-topo1 # the ospf topology test
+   ./ospf-topo1/r1 # router 1 configuration files
+   ./ospf-topo1/r1/zebra.conf # zebra configuration file
+   ./ospf-topo1/r1/ospfd.conf # ospf configuration file
+   ./ospf-topo1/r1/ospfroute.txt # 'show ip ospf' output reference file
+   # removed other for shortness sake
+   ...
+   ./lib # shared test/topology functions
+   ./lib/topogen.py # topogen implementation
+   ./lib/topotest.py # topotest implementation
+
+Guidelines for creating/editing topotest:
+
+- New topologies that don't fit the existing directories should create its own
+- Always remember to add the ``__init__.py`` to new folders, this makes auto
+  complete engines and pylint happy
+- Router (Quagga/FRR) specific code should go on topotest.py
+- Generic/repeated router actions should have an abstraction in
+  topogen.TopoRouter.
+- Generic/repeated non-router code should go to topotest.py
+- pytest related code should go to conftest.py (e.g. specialized asserts)
+
+Defining the Topology
+"""""""""""""""""""""
+
+The first step to write a new test is to define the topology. This step can be
+done in many ways, but the recommended is to use Graphviz to generate a drawing
+of the topology. It allows us to see the topology graphically and to see the
+names of equipments, links and addresses.
+
+Here is an example of Graphviz dot file that generates the template topology
+:file:`tests/topotests/example-test/test_template.dot` (the inlined code might
+get outdated, please see the linked file)::
+
+   graph template {
+       label="template";
+
+       # Routers
+       r1 [
+           shape=doubleoctagon,
+           label="r1",
+           fillcolor="#f08080",
+           style=filled,
+       ];
+       r2 [
+           shape=doubleoctagon,
+           label="r2",
+           fillcolor="#f08080",
+           style=filled,
+       ];
+
+       # Switches
+       s1 [
+           shape=oval,
+           label="s1\n192.168.0.0/24",
+           fillcolor="#d0e0d0",
+           style=filled,
+       ];
+       s2 [
+           shape=oval,
+           label="s2\n192.168.1.0/24",
+           fillcolor="#d0e0d0",
+           style=filled,
+       ];
+
+       # Connections
+       r1 -- s1 [label="eth0\n.1"];
+
+       r1 -- s2 [label="eth1\n.100"];
+       r2 -- s2 [label="eth0\n.1"];
+   }
+
+Here is the produced graph:
+
+.. graphviz::
+
+   graph template {
+       label="template";
+
+       # Routers
+       r1 [
+           shape=doubleoctagon,
+           label="r1",
+           fillcolor="#f08080",
+           style=filled,
+       ];
+       r2 [
+           shape=doubleoctagon,
+           label="r2",
+           fillcolor="#f08080",
+           style=filled,
+       ];
+
+       # Switches
+       s1 [
+           shape=oval,
+           label="s1\n192.168.0.0/24",
+           fillcolor="#d0e0d0",
+           style=filled,
+       ];
+       s2 [
+           shape=oval,
+           label="s2\n192.168.1.0/24",
+           fillcolor="#d0e0d0",
+           style=filled,
+       ];
+
+       # Connections
+       r1 -- s1 [label="eth0\n.1"];
+
+       r1 -- s2 [label="eth1\n.100"];
+       r2 -- s2 [label="eth0\n.1"];
+   }
+
+Generating / Obtaining Configuration Files
+""""""""""""""""""""""""""""""""""""""""""
+
+In order to get the configuration files or command output for each router, we
+need to run the topology and execute commands in ``vtysh``. The quickest way to
+achieve that is writing the topology building code and running the topology.
+
+To bootstrap your test topology, do the following steps:
+
+- Copy the template test
+
+.. code:: shell
+
+   $ mkdir new-topo/
+   $ touch new-topo/__init__.py
+   $ cp example-test/test_template.py new-topo/test_new_topo.py
+
+- Modify the template according to your dot file
+
+Here is the template topology described in the previous section in python code:
+
+.. code:: py
+
+   class TemplateTopo(Topo):
+       "Test topology builder"
+       def build(self, *_args, **_opts):
+           "Build function"
+           tgen = get_topogen(self)
+
+           # Create 2 routers
+           for routern in range(1, 3):
+               tgen.add_router('r{}'.format(routern))
+
+           # Create a switch with just one router connected to it to simulate a
+           # empty network.
+           switch = tgen.add_switch('s1')
+           switch.add_link(tgen.gears['r1'])
+
+           # Create a connection between r1 and r2
+           switch = tgen.add_switch('s2')
+           switch.add_link(tgen.gears['r1'])
+           switch.add_link(tgen.gears['r2'])
+
+- Run the topology
+
+Topogen allows us to run the topology without running any tests, you can do
+that using the following example commands:
+
+.. code:: shell
+
+   $ # Running your bootstraped topology
+   $ sudo pytest -s --topology-only new-topo/test_new_topo.py
+   $ # Running the test_template.py topology
+   $ sudo pytest -s --topology-only example-test/test_template.py
+   $ # Running the ospf_topo1.py topology
+   $ sudo pytest -s --topology-only ospf-topo1/test_ospf_topo1.py
+
+Parameters explanation:
+
+.. program:: pytest
+
+.. option:: -s
+
+   Actives input/output capture. This is required by mininet in order to show
+   the interactive shell.
+
+.. option:: --topology-only
+
+   Don't run any tests, just build the topology.
+
+After executing the commands above, you should get the following terminal
+output:
+
+.. code:: shell
+
+   === test session starts ===
+   platform linux2 -- Python 2.7.12, pytest-3.1.2, py-1.4.34, pluggy-0.4.0
+   rootdir: /media/sf_src/topotests, inifile: pytest.ini
+   collected 3 items
+
+   ospf-topo1/test_ospf_topo1.py *** Starting controller
+
+   *** Starting 6 switches
+   switch1 switch2 switch3 switch4 switch5 switch6 ...
+   r2: frr zebra started
+   r2: frr ospfd started
+   r3: frr zebra started
+   r3: frr ospfd started
+   r1: frr zebra started
+   r1: frr ospfd started
+   r4: frr zebra started
+   r4: frr ospfd started
+   *** Starting CLI:
+   mininet>
+
+The last line shows us that we are now using the Mininet CLI (Command Line
+Interface), from here you can call your router ``vtysh`` or even bash.
+
+Here are some commands example:
+
+.. code:: shell
+
+   mininet> r1 ping 10.0.3.1
+   PING 10.0.3.1 (10.0.3.1) 56(84) bytes of data.
+   64 bytes from 10.0.3.1: icmp_seq=1 ttl=64 time=0.576 ms
+   64 bytes from 10.0.3.1: icmp_seq=2 ttl=64 time=0.083 ms
+   64 bytes from 10.0.3.1: icmp_seq=3 ttl=64 time=0.088 ms
+   ^C
+   --- 10.0.3.1 ping statistics ---
+   3 packets transmitted, 3 received, 0% packet loss, time 1998ms
+   rtt min/avg/max/mdev = 0.083/0.249/0.576/0.231 ms
+
+
+
+   mininet> r1 ping 10.0.3.3
+   PING 10.0.3.3 (10.0.3.3) 56(84) bytes of data.
+   64 bytes from 10.0.3.3: icmp_seq=1 ttl=64 time=2.87 ms
+   64 bytes from 10.0.3.3: icmp_seq=2 ttl=64 time=0.080 ms
+   64 bytes from 10.0.3.3: icmp_seq=3 ttl=64 time=0.091 ms
+   ^C
+   --- 10.0.3.3 ping statistics ---
+   3 packets transmitted, 3 received, 0% packet loss, time 2003ms
+   rtt min/avg/max/mdev = 0.080/1.014/2.872/1.313 ms
+
+
+
+   mininet> r3 vtysh
+
+   Hello, this is FRRouting (version 3.1-devrzalamena-build).
+   Copyright 1996-2005 Kunihiro Ishiguro, et al.
+
+   frr-1# show running-config
+   Building configuration...
+
+   Current configuration:
+   !
+   frr version 3.1-devrzalamena-build
+   frr defaults traditional
+   hostname r3
+   no service integrated-vtysh-config
+   !
+   log file zebra.log
+   !
+   log file ospfd.log
+   !
+   interface r3-eth0
+    ip address 10.0.3.1/24
+   !
+   interface r3-eth1
+    ip address 10.0.10.1/24
+   !
+   interface r3-eth2
+    ip address 172.16.0.2/24
+   !
+   router ospf
+    ospf router-id 10.0.255.3
+    redistribute kernel
+    redistribute connected
+    redistribute static
+    network 10.0.3.0/24 area 0
+    network 10.0.10.0/24 area 0
+    network 172.16.0.0/24 area 1
+   !
+   line vty
+   !
+   end
+   frr-1#
+
+After you successfully configured your topology, you can obtain the
+configuration files (per-daemon) using the following commands:
+
+.. code:: shell
+
+   mininet> r3 vtysh -d ospfd
+
+   Hello, this is FRRouting (version 3.1-devrzalamena-build).
+   Copyright 1996-2005 Kunihiro Ishiguro, et al.
+
+   frr-1# show running-config
+   Building configuration...
+
+   Current configuration:
+   !
+   frr version 3.1-devrzalamena-build
+   frr defaults traditional
+   no service integrated-vtysh-config
+   !
+   log file ospfd.log
+   !
+   router ospf
+    ospf router-id 10.0.255.3
+    redistribute kernel
+    redistribute connected
+    redistribute static
+    network 10.0.3.0/24 area 0
+    network 10.0.10.0/24 area 0
+    network 172.16.0.0/24 area 1
+   !
+   line vty
+   !
+   end
+   frr-1#
+
+Writing Tests
+"""""""""""""
+
+Test topologies should always be bootstrapped from
+:file:`tests/topotests/example-test/test_template.py` because it contains
+important boilerplate code that can't be avoided, like:
+
+- imports: os, sys, pytest, topotest/topogen and mininet topology class
+- The global variable CWD (Current Working directory): which is most likely
+  going to be used to reference the routers configuration file location
+
+Example:
+
+.. code:: py
+
+   # For all registered routers, load the zebra configuration file
+   for rname, router in router_list.iteritems():
+       router.load_config(
+           TopoRouter.RD_ZEBRA,
+           os.path.join(CWD, '{}/zebra.conf'.format(rname))
+       )
+       # os.path.join() joins the CWD string with arguments adding the necessary
+       # slashes ('/'). Arguments must not begin with '/'.
+
+- The topology class that inherits from Mininet Topo class:
+
+.. code:: py
+
+   class TemplateTopo(Topo):
+     def build(self, *_args, **_opts):
+       tgen = get_topogen(self)
+       # topology build code
+
+- pytest ``setup_module()`` and ``teardown_module()`` to start the topology
+
+.. code:: py
+
+   def setup_module(_m):
+       tgen = Topogen(TemplateTopo)
+       tgen.start_topology('debug')
+
+   def teardown_module(_m):
+       tgen = get_topogen()
+       tgen.stop_topology()
+
+- ``__main__`` initialization code (to support running the script directly)
+
+.. code:: py
+
+   if __name__ == '__main__':
+       sys.exit(pytest.main(["-s"]))
+
+Requirements:
+
+- Test code should always be declared inside functions that begin with the
+  ``test_`` prefix. Functions beginning with different prefixes will not be run
+  by pytest.
+- Configuration files and long output commands should go into separated files
+  inside folders named after the equipment.
+- Tests must be able to run without any interaction. To make sure your test
+  conforms with this, run it without the :option:`-s` parameter.
+
+Tips:
+
+- Keep results in stack variables, so people inspecting code with ``pdb`` can
+  easily print their values.
+
+Don't do this:
+
+.. code:: py
+
+   assert foobar(router1, router2)
+
+Do this instead:
+
+.. code:: py
+
+   result = foobar(router1, router2)
+   assert result
+
+- Use ``assert`` messages to indicate where the test failed.
+
+Example:
+
+.. code:: py
+
+   for router in router_list:
+      # ...
+      assert condition, 'Router "{}" condition failed'.format(router.name)
+
+Debugging Execution
+^^^^^^^^^^^^^^^^^^^
+
+The most effective ways to inspect topology tests are:
+
+- Run pytest with ``--pdb`` option. This option will cause a pdb shell to
+  appear when an assertion fails
+
+Example: ``pytest -s --pdb ospf-topo1/test_ospf_topo1.py``
+
+- Set a breakpoint in the test code with ``pdb``
+
+Example:
+
+.. code:: py
+
+   # Add the pdb import at the beginning of the file
+   import pdb
+   # ...
+
+   # Add a breakpoint where you think the problem is
+   def test_bla():
+     # ...
+     pdb.set_trace()
+     # ...
+
+The `Python Debugger <https://docs.python.org/2.7/library/pdb.html>`__ (pdb)
+shell allows us to run many useful operations like:
+
+- Setting breaking point on file/function/conditions (e.g. ``break``,
+  ``condition``)
+- Inspecting variables (e.g. ``p`` (print), ``pp`` (pretty print))
+- Running python code
+
+.. tip::
+
+   The TopoGear (equipment abstraction class) implements the ``__str__`` method
+   that allows the user to inspect equipment information.
+
+Example of pdb usage:
+
+.. code:: shell
+
+   > /media/sf_src/topotests/ospf-topo1/test_ospf_topo1.py(121)test_ospf_convergence()
+   -> for rnum in range(1, 5):
+   (Pdb) help
+   Documented commands (type help <topic>):
+   ========================================
+   EOF    bt         cont      enable  jump  pp       run      unt
+   a      c          continue  exit    l     q        s        until
+   alias  cl         d         h       list  quit     step     up
+   args   clear      debug     help    n     r        tbreak   w
+   b      commands   disable   ignore  next  restart  u        whatis
+   break  condition  down      j       p     return   unalias  where
+
+   Miscellaneous help topics:
+   ==========================
+   exec  pdb
+
+   Undocumented commands:
+   ======================
+   retval  rv
+
+   (Pdb) list
+   116                                   title2="Expected output")
+   117
+   118     def test_ospf_convergence():
+   119         "Test OSPF daemon convergence"
+   120         pdb.set_trace()
+   121  ->     for rnum in range(1, 5):
+   122             router = 'r{}'.format(rnum)
+   123
+   124             # Load expected results from the command
+   125             reffile = os.path.join(CWD, '{}/ospfroute.txt'.format(router))
+   126             expected = open(reffile).read()
+   (Pdb) step
+   > /media/sf_src/topotests/ospf-topo1/test_ospf_topo1.py(122)test_ospf_convergence()
+   -> router = 'r{}'.format(rnum)
+   (Pdb) step
+   > /media/sf_src/topotests/ospf-topo1/test_ospf_topo1.py(125)test_ospf_convergence()
+   -> reffile = os.path.join(CWD, '{}/ospfroute.txt'.format(router))
+   (Pdb) print rnum
+   1
+   (Pdb) print router
+   r1
+   (Pdb) tgen = get_topogen()
+   (Pdb) pp tgen.gears[router]
+   <lib.topogen.TopoRouter object at 0x7f74e06c9850>
+   (Pdb) pp str(tgen.gears[router])
+   'TopoGear<name="r1",links=["r1-eth0"<->"s1-eth0","r1-eth1"<->"s3-eth0"]> TopoRouter<>'
+   (Pdb) l 125
+   120         pdb.set_trace()
+   121         for rnum in range(1, 5):
+   122             router = 'r{}'.format(rnum)
+   123
+   124             # Load expected results from the command
+   125  ->         reffile = os.path.join(CWD, '{}/ospfroute.txt'.format(router))
+   126             expected = open(reffile).read()
+   127
+   128             # Run test function until we get an result. Wait at most 60 seconds.
+   129             test_func = partial(compare_show_ip_ospf, router, expected)
+   130             result, diff = topotest.run_and_expect(test_func, '',
+   (Pdb) router1 = tgen.gears[router]
+   (Pdb) router1.vtysh_cmd('show ip ospf route')
+   '============ OSPF network routing table ============\r\nN    10.0.1.0/24           [10] area: 0.0.0.0\r\n                           directly attached to r1-eth0\r\nN    10.0.2.0/24           [20] area: 0.0.0.0\r\n                           via 10.0.3.3, r1-eth1\r\nN    10.0.3.0/24           [10] area: 0.0.0.0\r\n                           directly attached to r1-eth1\r\nN    10.0.10.0/24          [20] area: 0.0.0.0\r\n                           via 10.0.3.1, r1-eth1\r\nN IA 172.16.0.0/24         [20] area: 0.0.0.0\r\n                           via 10.0.3.1, r1-eth1\r\nN IA 172.16.1.0/24         [30] area: 0.0.0.0\r\n                           via 10.0.3.1, r1-eth1\r\n\r\n============ OSPF router routing table =============\r\nR    10.0.255.2            [10] area: 0.0.0.0, ASBR\r\n                           via 10.0.3.3, r1-eth1\r\nR    10.0.255.3            [10] area: 0.0.0.0, ABR, ASBR\r\n                           via 10.0.3.1, r1-eth1\r\nR    10.0.255.4         IA [20] area: 0.0.0.0, ASBR\r\n                           via 10.0.3.1, r1-eth1\r\n\r\n============ OSPF external routing table ===========\r\n\r\n\r\n'
+    (Pdb) tgen.mininet_cli()
+    *** Starting CLI:
+    mininet>
+
+To enable more debug messages in other Topogen subsystems (like Mininet), more
+logging messages can be displayed by modifying the test configuration file
+``pytest.ini``:
+
+.. code:: ini
+
+   [topogen]
+   # Change the default verbosity line from 'info'...
+   #verbosity = info
+   # ...to 'debug'
+   verbosity = debug
+
+Instructions for use, write or debug topologies can be found in :ref:`topotests-guidelines`.
+To learn/remember common code snippets see :ref:`topotests-snippets`.
+
+Before creating a new topology, make sure that there isn't one already that
+does what you need. If nothing is similar, then you may create a new topology,
+preferably, using the newest template
+(:file:`tests/topotests/example-test/test_template.py`).
+
+.. include:: topotests-snippets.rst
+
+License
+-------
+
+All the configs and scripts are licensed under a ISC-style license. See Python
+scripts for details.
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+#
+# Q_PROTOBUF_C_CLIENT_INCLUDES = -I$(top_srcdir)/third-party/protobuf-c/src
+# Q_PROTOBUF_C_CLIENT_LDOPTS = $(top_builddir)/third-party/protobuf-c/src/libprotobuf-c.la
+@HAVE_PROTOBUF_TRUE@Q_PROTOBUF_C_CLIENT_INCLUDES = 
+@HAVE_PROTOBUF_TRUE@Q_PROTOBUF_C_CLIENT_LDOPTS = -lprotobuf-c
+@HAVE_PROTOBUF_TRUE@Q_PROTOC = protoc
+@HAVE_PROTOBUF_TRUE@Q_PROTOC_C = protoc-c
+@HAVE_PROTOBUF_TRUE@AM_V_PROTOC_C = $(am__v_PROTOC_C_$(V))
+@HAVE_PROTOBUF_TRUE@am__v_PROTOC_C_ = $(am__v_PROTOC_C_$(AM_DEFAULT_VERBOSITY))
+@HAVE_PROTOBUF_TRUE@am__v_PROTOC_C_0 = @echo "  PROTOC_C" $@;
+@HAVE_PROTOBUF_TRUE@am__v_PROTOC_C_1 = 
+
+#
+# Information about how to link to various libraries.
+#
+@HAVE_PROTOBUF_TRUE@Q_FRR_PB_CLIENT_LDOPTS = $(top_srcdir)/qpb/libfrr_pb.la $(Q_PROTOBUF_C_CLIENT_LDOPTS)
+@HAVE_PROTOBUF_TRUE@Q_FPM_PB_CLIENT_LDOPTS = $(top_srcdir)/fpm/libfrrfpm_pb.la $(Q_FRR_PB_CLIENT_LDOPTS)
+AUTOMAKE_OPTIONS = subdir-objects
+AM_CPPFLAGS = \
+	-I.. \
+	-I$(top_srcdir) \
+	-I$(top_srcdir)/lib \
+	-I$(top_builddir)/lib \
+	-I$(top_srcdir)/tests/helpers/c \
+	-I$(top_builddir)/tests/helpers/c \
+	-O
+
+@BGPD_FALSE@TESTS_BGPD = 
+@BGPD_TRUE@TESTS_BGPD = \
+@BGPD_TRUE@	bgpd/test_aspath \
+@BGPD_TRUE@	bgpd/test_capability \
+@BGPD_TRUE@	bgpd/test_packet \
+@BGPD_TRUE@	bgpd/test_ecommunity \
+@BGPD_TRUE@	bgpd/test_mp_attr \
+@BGPD_TRUE@	bgpd/test_mpath
+
+@ISISD_FALSE@TESTS_ISISD = 
+@ISISD_TRUE@@SOLARIS_FALSE@TESTS_ISISD = \
+@ISISD_TRUE@@SOLARIS_FALSE@	isisd/test_fuzz_isis_tlv \
+@ISISD_TRUE@@SOLARIS_FALSE@	isisd/test_isis_vertex_queue \
+@ISISD_TRUE@@SOLARIS_FALSE@	# end
+
+@ISISD_TRUE@@SOLARIS_TRUE@TESTS_ISISD = 
+@OSPF6D_FALSE@TESTS_OSPF6D = 
+@OSPF6D_TRUE@TESTS_OSPF6D = \
+@OSPF6D_TRUE@	ospf6d/test_lsdb \
+@OSPF6D_TRUE@	# end
+
+@ENABLE_BGP_VNC_FALSE@BGP_VNC_RFP_LIB = 
+@ENABLE_BGP_VNC_TRUE@BGP_VNC_RFP_LIB = @top_builddir@/$(LIBRFP)/librfp.a
+noinst_HEADERS = \
+	./helpers/c/prng.h \
+	./helpers/c/tests.h \
+	./lib/cli/common_cli.h
+
+lib_test_buffer_SOURCES = lib/test_buffer.c
+lib_test_checksum_SOURCES = lib/test_checksum.c
+lib_test_heavy_thread_SOURCES = lib/test_heavy_thread.c helpers/c/main.c
+lib_test_heavy_wq_SOURCES = lib/test_heavy_wq.c helpers/c/main.c
+lib_test_heavy_SOURCES = lib/test_heavy.c helpers/c/main.c
+lib_test_memory_SOURCES = lib/test_memory.c
+lib_test_nexthop_iter_SOURCES = lib/test_nexthop_iter.c helpers/c/prng.c
+lib_test_privs_SOURCES = lib/test_privs.c
+lib_test_srcdest_table_SOURCES = lib/test_srcdest_table.c \
+                                 helpers/c/prng.c
+
+lib_test_ringbuf_SOURCES = lib/test_ringbuf.c
+lib_test_segv_SOURCES = lib/test_segv.c
+lib_test_sig_SOURCES = lib/test_sig.c
+lib_test_stream_SOURCES = lib/test_stream.c
+lib_test_table_SOURCES = lib/test_table.c
+lib_test_timer_correctness_SOURCES = lib/test_timer_correctness.c \
+                                     helpers/c/prng.c
+
+lib_test_timer_performance_SOURCES = lib/test_timer_performance.c \
+                                     helpers/c/prng.c
+
+lib_test_ttable_SOURCES = lib/test_ttable.c
+lib_test_zmq_SOURCES = lib/test_zmq.c
+lib_test_zmq_CFLAGS = $(AM_CFLAGS) $(ZEROMQ_CFLAGS)
+lib_cli_test_cli_SOURCES = lib/cli/test_cli.c lib/cli/common_cli.c
+lib_cli_test_commands_SOURCES = lib/cli/test_commands_defun.c \
+                                lib/cli/test_commands.c \
+                                helpers/c/prng.c
+
+bgpd_test_aspath_SOURCES = bgpd/test_aspath.c
+bgpd_test_capability_SOURCES = bgpd/test_capability.c
+bgpd_test_packet_SOURCES = bgpd/test_packet.c
+bgpd_test_ecommunity_SOURCES = bgpd/test_ecommunity.c
+bgpd_test_mp_attr_SOURCES = bgpd/test_mp_attr.c
+bgpd_test_mpath_SOURCES = bgpd/test_mpath.c
+isisd_test_fuzz_isis_tlv_SOURCES = isisd/test_fuzz_isis_tlv.c
+isisd_test_fuzz_isis_tlv_CPPFLAGS = $(AM_CPPFLAGS) -I$(top_builddir)/tests/isisd
+isisd_test_isis_vertex_queue_SOURCES = isisd/test_isis_vertex_queue.c
+ospf6d_test_lsdb_SOURCES = ospf6d/test_lsdb.c lib/cli/common_cli.c
+ALL_TESTS_LDADD = ../lib/libfrr.la @LIBCAP@
+BGP_TEST_LDADD = ../bgpd/libbgp.a $(BGP_VNC_RFP_LIB) $(ALL_TESTS_LDADD) -lm
+ISISD_TEST_LDADD = ../isisd/libisis.a $(ALL_TESTS_LDADD)
+OSPF6_TEST_LDADD = ../ospf6d/libospf6.a $(ALL_TESTS_LDADD)
+lib_test_buffer_LDADD = $(ALL_TESTS_LDADD)
+lib_test_checksum_LDADD = $(ALL_TESTS_LDADD)
+lib_test_heavy_thread_LDADD = $(ALL_TESTS_LDADD) -lm
+lib_test_heavy_wq_LDADD = $(ALL_TESTS_LDADD) -lm
+lib_test_heavy_LDADD = $(ALL_TESTS_LDADD) -lm
+lib_test_memory_LDADD = $(ALL_TESTS_LDADD)
+lib_test_nexthop_iter_LDADD = $(ALL_TESTS_LDADD)
+lib_test_privs_LDADD = $(ALL_TESTS_LDADD)
+lib_test_ringbuf_LDADD = $(ALL_TESTS_LDADD)
+lib_test_srcdest_table_LDADD = $(ALL_TESTS_LDADD)
+lib_test_segv_LDADD = $(ALL_TESTS_LDADD)
+lib_test_sig_LDADD = $(ALL_TESTS_LDADD)
+lib_test_stream_LDADD = $(ALL_TESTS_LDADD)
+lib_test_table_LDADD = $(ALL_TESTS_LDADD) -lm
+lib_test_timer_correctness_LDADD = $(ALL_TESTS_LDADD)
+lib_test_timer_performance_LDADD = $(ALL_TESTS_LDADD)
+lib_test_ttable_LDADD = $(ALL_TESTS_LDADD)
+lib_test_zmq_LDADD = ../lib/libfrrzmq.la $(ALL_TESTS_LDADD) $(ZEROMQ_LIBS)
+lib_cli_test_cli_LDADD = $(ALL_TESTS_LDADD)
+lib_cli_test_commands_LDADD = $(ALL_TESTS_LDADD)
+bgpd_test_aspath_LDADD = $(BGP_TEST_LDADD)
+bgpd_test_capability_LDADD = $(BGP_TEST_LDADD)
+bgpd_test_packet_LDADD = $(BGP_TEST_LDADD)
+bgpd_test_ecommunity_LDADD = $(BGP_TEST_LDADD)
+bgpd_test_mp_attr_LDADD = $(BGP_TEST_LDADD)
+bgpd_test_mpath_LDADD = $(BGP_TEST_LDADD)
+isisd_test_fuzz_isis_tlv_LDADD = $(ISISD_TEST_LDADD)
+isisd_test_isis_vertex_queue_LDADD = $(ISISD_TEST_LDADD)
+ospf6d_test_lsdb_LDADD = $(OSPF6_TEST_LDADD)
+EXTRA_DIST = \
+    runtests.py \
+    bgpd/test_aspath.py \
+    bgpd/test_capability.py \
+    bgpd/test_ecommunity.py \
+    bgpd/test_mp_attr.py \
+    bgpd/test_mpath.py \
+    helpers/python/frrsix.py \
+    helpers/python/frrtest.py \
+    isisd/test_fuzz_isis_tlv.py \
+    isisd/test_fuzz_isis_tlv_tests.h.gz \
+    isisd/test_isis_vertex_queue.py \
+    lib/cli/test_commands.in \
+    lib/cli/test_commands.py \
+    lib/cli/test_commands.refout \
+    lib/cli/test_cli.in \
+    lib/cli/test_cli.py \
+    lib/cli/test_cli.refout \
+    lib/test_nexthop_iter.py \
+    lib/test_ringbuf.py \
+    lib/test_srcdest_table.py \
+    lib/test_stream.py \
+    lib/test_stream.refout \
+    lib/test_table.py \
+    lib/test_timer_correctness.py \
+    lib/test_ttable.py \
+    lib/test_ttable.refout \
+    ospf6d/test_lsdb.py \
+    ospf6d/test_lsdb.in \
+    ospf6d/test_lsdb.refout \
+    # end
+
+all: all-am
+
+.SUFFIXES:
+.SUFFIXES: _clippy.c .proto .pb-c.c .pb-c.h .pb.h .c .l .lo .o .obj .y
+$(srcdir)/Makefile.in:  $(srcdir)/Makefile.am $(srcdir)/../common.am $(am__configure_deps)
+	@for dep in $?; do \
+	  case '$(am__configure_deps)' in \
+	    *$$dep*) \
+	      ( cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh ) \
+	        && { if test -f $@; then exit 0; else break; fi; }; \
+	      exit 1;; \
+	  esac; \
+	done; \
+	echo ' cd $(top_srcdir) && $(AUTOMAKE) --gnu tests/Makefile'; \
+	$(am__cd) $(top_srcdir) && \
+	  $(AUTOMAKE) --gnu tests/Makefile
+Makefile: $(srcdir)/Makefile.in $(top_builddir)/config.status
+	@case '$?' in \
+	  *config.status*) \
+	    cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh;; \
+	  *) \
+	    echo ' cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@ $(am__depfiles_maybe)'; \
+	    cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@ $(am__depfiles_maybe);; \
+	esac;
+$(srcdir)/../common.am $(am__empty):
+
+$(top_builddir)/config.status: $(top_srcdir)/configure $(CONFIG_STATUS_DEPENDENCIES)
+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+
+$(top_srcdir)/configure:  $(am__configure_deps)
+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+$(ACLOCAL_M4):  $(am__aclocal_m4_deps)
+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+$(am__aclocal_m4_deps):
+
+clean-checkPROGRAMS:
+	@list='$(check_PROGRAMS)'; test -n "$$list" || exit 0; \
+	echo " rm -f" $$list; \
+	rm -f $$list || exit $$?; \
+	test -n "$(EXEEXT)" || exit 0; \
+	list=`for p in $$list; do echo "$$p"; done | sed 's/$(EXEEXT)$$//'`; \
+	echo " rm -f" $$list; \
+	rm -f $$list
+bgpd/$(am__dirstamp):
+	@$(MKDIR_P) bgpd
+	@: > bgpd/$(am__dirstamp)
+bgpd/$(DEPDIR)/$(am__dirstamp):
+	@$(MKDIR_P) bgpd/$(DEPDIR)
+	@: > bgpd/$(DEPDIR)/$(am__dirstamp)
+bgpd/test_aspath.$(OBJEXT): bgpd/$(am__dirstamp) \
+	bgpd/$(DEPDIR)/$(am__dirstamp)
+
+bgpd/test_aspath$(EXEEXT): $(bgpd_test_aspath_OBJECTS) $(bgpd_test_aspath_DEPENDENCIES) $(EXTRA_bgpd_test_aspath_DEPENDENCIES) bgpd/$(am__dirstamp)
+	@rm -f bgpd/test_aspath$(EXEEXT)
+	$(AM_V_CCLD)$(LINK) $(bgpd_test_aspath_OBJECTS) $(bgpd_test_aspath_LDADD) $(LIBS)
+bgpd/test_capability.$(OBJEXT): bgpd/$(am__dirstamp) \
+	bgpd/$(DEPDIR)/$(am__dirstamp)
+
+bgpd/test_capability$(EXEEXT): $(bgpd_test_capability_OBJECTS) $(bgpd_test_capability_DEPENDENCIES) $(EXTRA_bgpd_test_capability_DEPENDENCIES) bgpd/$(am__dirstamp)
+	@rm -f bgpd/test_capability$(EXEEXT)
+	$(AM_V_CCLD)$(LINK) $(bgpd_test_capability_OBJECTS) $(bgpd_test_capability_LDADD) $(LIBS)
+bgpd/test_ecommunity.$(OBJEXT): bgpd/$(am__dirstamp) \
+	bgpd/$(DEPDIR)/$(am__dirstamp)
+
+bgpd/test_ecommunity$(EXEEXT): $(bgpd_test_ecommunity_OBJECTS) $(bgpd_test_ecommunity_DEPENDENCIES) $(EXTRA_bgpd_test_ecommunity_DEPENDENCIES) bgpd/$(am__dirstamp)
+	@rm -f bgpd/test_ecommunity$(EXEEXT)
+	$(AM_V_CCLD)$(LINK) $(bgpd_test_ecommunity_OBJECTS) $(bgpd_test_ecommunity_LDADD) $(LIBS)
+bgpd/test_mp_attr.$(OBJEXT): bgpd/$(am__dirstamp) \
+	bgpd/$(DEPDIR)/$(am__dirstamp)
+
+bgpd/test_mp_attr$(EXEEXT): $(bgpd_test_mp_attr_OBJECTS) $(bgpd_test_mp_attr_DEPENDENCIES) $(EXTRA_bgpd_test_mp_attr_DEPENDENCIES) bgpd/$(am__dirstamp)
+	@rm -f bgpd/test_mp_attr$(EXEEXT)
+	$(AM_V_CCLD)$(LINK) $(bgpd_test_mp_attr_OBJECTS) $(bgpd_test_mp_attr_LDADD) $(LIBS)
+bgpd/test_mpath.$(OBJEXT): bgpd/$(am__dirstamp) \
+	bgpd/$(DEPDIR)/$(am__dirstamp)
+
+bgpd/test_mpath$(EXEEXT): $(bgpd_test_mpath_OBJECTS) $(bgpd_test_mpath_DEPENDENCIES) $(EXTRA_bgpd_test_mpath_DEPENDENCIES) bgpd/$(am__dirstamp)
+	@rm -f bgpd/test_mpath$(EXEEXT)
+	$(AM_V_CCLD)$(LINK) $(bgpd_test_mpath_OBJECTS) $(bgpd_test_mpath_LDADD) $(LIBS)
+bgpd/test_packet.$(OBJEXT): bgpd/$(am__dirstamp) \
+	bgpd/$(DEPDIR)/$(am__dirstamp)
+
+bgpd/test_packet$(EXEEXT): $(bgpd_test_packet_OBJECTS) $(bgpd_test_packet_DEPENDENCIES) $(EXTRA_bgpd_test_packet_DEPENDENCIES) bgpd/$(am__dirstamp)
+	@rm -f bgpd/test_packet$(EXEEXT)
+	$(AM_V_CCLD)$(LINK) $(bgpd_test_packet_OBJECTS) $(bgpd_test_packet_LDADD) $(LIBS)
+isisd/$(am__dirstamp):
+	@$(MKDIR_P) isisd
+	@: > isisd/$(am__dirstamp)
+isisd/$(DEPDIR)/$(am__dirstamp):
+	@$(MKDIR_P) isisd/$(DEPDIR)
+	@: > isisd/$(DEPDIR)/$(am__dirstamp)
+isisd/isisd_test_fuzz_isis_tlv-test_fuzz_isis_tlv.$(OBJEXT):  \
+	isisd/$(am__dirstamp) isisd/$(DEPDIR)/$(am__dirstamp)
+
+isisd/test_fuzz_isis_tlv$(EXEEXT): $(isisd_test_fuzz_isis_tlv_OBJECTS) $(isisd_test_fuzz_isis_tlv_DEPENDENCIES) $(EXTRA_isisd_test_fuzz_isis_tlv_DEPENDENCIES) isisd/$(am__dirstamp)
+	@rm -f isisd/test_fuzz_isis_tlv$(EXEEXT)
+	$(AM_V_CCLD)$(LINK) $(isisd_test_fuzz_isis_tlv_OBJECTS) $(isisd_test_fuzz_isis_tlv_LDADD) $(LIBS)
+isisd/test_isis_vertex_queue.$(OBJEXT): isisd/$(am__dirstamp) \
+	isisd/$(DEPDIR)/$(am__dirstamp)
+
+isisd/test_isis_vertex_queue$(EXEEXT): $(isisd_test_isis_vertex_queue_OBJECTS) $(isisd_test_isis_vertex_queue_DEPENDENCIES) $(EXTRA_isisd_test_isis_vertex_queue_DEPENDENCIES) isisd/$(am__dirstamp)
+	@rm -f isisd/test_isis_vertex_queue$(EXEEXT)
+	$(AM_V_CCLD)$(LINK) $(isisd_test_isis_vertex_queue_OBJECTS) $(isisd_test_isis_vertex_queue_LDADD) $(LIBS)
+lib/cli/$(am__dirstamp):
+	@$(MKDIR_P) lib/cli
+	@: > lib/cli/$(am__dirstamp)
+lib/cli/$(DEPDIR)/$(am__dirstamp):
+	@$(MKDIR_P) lib/cli/$(DEPDIR)
+	@: > lib/cli/$(DEPDIR)/$(am__dirstamp)
+lib/cli/test_cli.$(OBJEXT): lib/cli/$(am__dirstamp) \
+	lib/cli/$(DEPDIR)/$(am__dirstamp)
+lib/cli/common_cli.$(OBJEXT): lib/cli/$(am__dirstamp) \
+	lib/cli/$(DEPDIR)/$(am__dirstamp)
+
+lib/cli/test_cli$(EXEEXT): $(lib_cli_test_cli_OBJECTS) $(lib_cli_test_cli_DEPENDENCIES) $(EXTRA_lib_cli_test_cli_DEPENDENCIES) lib/cli/$(am__dirstamp)
+	@rm -f lib/cli/test_cli$(EXEEXT)
+	$(AM_V_CCLD)$(LINK) $(lib_cli_test_cli_OBJECTS) $(lib_cli_test_cli_LDADD) $(LIBS)
+lib/cli/test_commands_defun.$(OBJEXT): lib/cli/$(am__dirstamp) \
+	lib/cli/$(DEPDIR)/$(am__dirstamp)
+lib/cli/test_commands.$(OBJEXT): lib/cli/$(am__dirstamp) \
+	lib/cli/$(DEPDIR)/$(am__dirstamp)
+helpers/c/$(am__dirstamp):
+	@$(MKDIR_P) helpers/c
+	@: > helpers/c/$(am__dirstamp)
+helpers/c/$(DEPDIR)/$(am__dirstamp):
+	@$(MKDIR_P) helpers/c/$(DEPDIR)
+	@: > helpers/c/$(DEPDIR)/$(am__dirstamp)
+helpers/c/prng.$(OBJEXT): helpers/c/$(am__dirstamp) \
+	helpers/c/$(DEPDIR)/$(am__dirstamp)
+
+lib/cli/test_commands$(EXEEXT): $(lib_cli_test_commands_OBJECTS) $(lib_cli_test_commands_DEPENDENCIES) $(EXTRA_lib_cli_test_commands_DEPENDENCIES) lib/cli/$(am__dirstamp)
+	@rm -f lib/cli/test_commands$(EXEEXT)
+	$(AM_V_CCLD)$(LINK) $(lib_cli_test_commands_OBJECTS) $(lib_cli_test_commands_LDADD) $(LIBS)
+lib/$(am__dirstamp):
+	@$(MKDIR_P) lib
+	@: > lib/$(am__dirstamp)
+lib/$(DEPDIR)/$(am__dirstamp):
+	@$(MKDIR_P) lib/$(DEPDIR)
+	@: > lib/$(DEPDIR)/$(am__dirstamp)
+lib/test_buffer.$(OBJEXT): lib/$(am__dirstamp) \
+	lib/$(DEPDIR)/$(am__dirstamp)
+
+lib/test_buffer$(EXEEXT): $(lib_test_buffer_OBJECTS) $(lib_test_buffer_DEPENDENCIES) $(EXTRA_lib_test_buffer_DEPENDENCIES) lib/$(am__dirstamp)
+	@rm -f lib/test_buffer$(EXEEXT)
+	$(AM_V_CCLD)$(LINK) $(lib_test_buffer_OBJECTS) $(lib_test_buffer_LDADD) $(LIBS)
+lib/test_checksum.$(OBJEXT): lib/$(am__dirstamp) \
+	lib/$(DEPDIR)/$(am__dirstamp)
+
+lib/test_checksum$(EXEEXT): $(lib_test_checksum_OBJECTS) $(lib_test_checksum_DEPENDENCIES) $(EXTRA_lib_test_checksum_DEPENDENCIES) lib/$(am__dirstamp)
+	@rm -f lib/test_checksum$(EXEEXT)
+	$(AM_V_CCLD)$(LINK) $(lib_test_checksum_OBJECTS) $(lib_test_checksum_LDADD) $(LIBS)
+lib/test_heavy.$(OBJEXT): lib/$(am__dirstamp) \
+	lib/$(DEPDIR)/$(am__dirstamp)
+helpers/c/main.$(OBJEXT): helpers/c/$(am__dirstamp) \
+	helpers/c/$(DEPDIR)/$(am__dirstamp)
+
+lib/test_heavy$(EXEEXT): $(lib_test_heavy_OBJECTS) $(lib_test_heavy_DEPENDENCIES) $(EXTRA_lib_test_heavy_DEPENDENCIES) lib/$(am__dirstamp)
+	@rm -f lib/test_heavy$(EXEEXT)
+	$(AM_V_CCLD)$(LINK) $(lib_test_heavy_OBJECTS) $(lib_test_heavy_LDADD) $(LIBS)
+lib/test_heavy_thread.$(OBJEXT): lib/$(am__dirstamp) \
+	lib/$(DEPDIR)/$(am__dirstamp)
+
+lib/test_heavy_thread$(EXEEXT): $(lib_test_heavy_thread_OBJECTS) $(lib_test_heavy_thread_DEPENDENCIES) $(EXTRA_lib_test_heavy_thread_DEPENDENCIES) lib/$(am__dirstamp)
+	@rm -f lib/test_heavy_thread$(EXEEXT)
+	$(AM_V_CCLD)$(LINK) $(lib_test_heavy_thread_OBJECTS) $(lib_test_heavy_thread_LDADD) $(LIBS)
+lib/test_heavy_wq.$(OBJEXT): lib/$(am__dirstamp) \
+	lib/$(DEPDIR)/$(am__dirstamp)
+
+lib/test_heavy_wq$(EXEEXT): $(lib_test_heavy_wq_OBJECTS) $(lib_test_heavy_wq_DEPENDENCIES) $(EXTRA_lib_test_heavy_wq_DEPENDENCIES) lib/$(am__dirstamp)
+	@rm -f lib/test_heavy_wq$(EXEEXT)
+	$(AM_V_CCLD)$(LINK) $(lib_test_heavy_wq_OBJECTS) $(lib_test_heavy_wq_LDADD) $(LIBS)
+lib/test_memory.$(OBJEXT): lib/$(am__dirstamp) \
+	lib/$(DEPDIR)/$(am__dirstamp)
+
+lib/test_memory$(EXEEXT): $(lib_test_memory_OBJECTS) $(lib_test_memory_DEPENDENCIES) $(EXTRA_lib_test_memory_DEPENDENCIES) lib/$(am__dirstamp)
+	@rm -f lib/test_memory$(EXEEXT)
+	$(AM_V_CCLD)$(LINK) $(lib_test_memory_OBJECTS) $(lib_test_memory_LDADD) $(LIBS)
+lib/test_nexthop_iter.$(OBJEXT): lib/$(am__dirstamp) \
+	lib/$(DEPDIR)/$(am__dirstamp)
+
+lib/test_nexthop_iter$(EXEEXT): $(lib_test_nexthop_iter_OBJECTS) $(lib_test_nexthop_iter_DEPENDENCIES) $(EXTRA_lib_test_nexthop_iter_DEPENDENCIES) lib/$(am__dirstamp)
+	@rm -f lib/test_nexthop_iter$(EXEEXT)
+	$(AM_V_CCLD)$(LINK) $(lib_test_nexthop_iter_OBJECTS) $(lib_test_nexthop_iter_LDADD) $(LIBS)
+lib/test_privs.$(OBJEXT): lib/$(am__dirstamp) \
+	lib/$(DEPDIR)/$(am__dirstamp)
+
+lib/test_privs$(EXEEXT): $(lib_test_privs_OBJECTS) $(lib_test_privs_DEPENDENCIES) $(EXTRA_lib_test_privs_DEPENDENCIES) lib/$(am__dirstamp)
+	@rm -f lib/test_privs$(EXEEXT)
+	$(AM_V_CCLD)$(LINK) $(lib_test_privs_OBJECTS) $(lib_test_privs_LDADD) $(LIBS)
+lib/test_ringbuf.$(OBJEXT): lib/$(am__dirstamp) \
+	lib/$(DEPDIR)/$(am__dirstamp)
+
+lib/test_ringbuf$(EXEEXT): $(lib_test_ringbuf_OBJECTS) $(lib_test_ringbuf_DEPENDENCIES) $(EXTRA_lib_test_ringbuf_DEPENDENCIES) lib/$(am__dirstamp)
+	@rm -f lib/test_ringbuf$(EXEEXT)
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+	      install; \
+	else \
+	  $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+	    install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+	    "INSTALL_PROGRAM_ENV=STRIPPROG='$(STRIP)'" install; \
+	fi
+mostlyclean-generic:
+
+clean-generic:
+
+distclean-generic:
+	-test -z "$(CONFIG_CLEAN_FILES)" || rm -f $(CONFIG_CLEAN_FILES)
+	-test . = "$(srcdir)" || test -z "$(CONFIG_CLEAN_VPATH_FILES)" || rm -f $(CONFIG_CLEAN_VPATH_FILES)
+	-rm -f bgpd/$(DEPDIR)/$(am__dirstamp)
+	-rm -f bgpd/$(am__dirstamp)
+	-rm -f helpers/c/$(DEPDIR)/$(am__dirstamp)
+	-rm -f helpers/c/$(am__dirstamp)
+	-rm -f isisd/$(DEPDIR)/$(am__dirstamp)
+	-rm -f isisd/$(am__dirstamp)
+	-rm -f lib/$(DEPDIR)/$(am__dirstamp)
+	-rm -f lib/$(am__dirstamp)
+	-rm -f lib/cli/$(DEPDIR)/$(am__dirstamp)
+	-rm -f lib/cli/$(am__dirstamp)
+	-rm -f ospf6d/$(DEPDIR)/$(am__dirstamp)
+	-rm -f ospf6d/$(am__dirstamp)
+
+maintainer-clean-generic:
+	@echo "This command is intended for maintainers to use"
+	@echo "it deletes files that may require special tools to rebuild."
+clean: clean-am
+
+clean-am: clean-checkPROGRAMS clean-generic clean-libtool \
+	mostlyclean-am
+
+distclean: distclean-am
+	-rm -rf bgpd/$(DEPDIR) helpers/c/$(DEPDIR) isisd/$(DEPDIR) lib/$(DEPDIR) lib/cli/$(DEPDIR) ospf6d/$(DEPDIR)
+	-rm -f Makefile
+distclean-am: clean-am distclean-compile distclean-generic \
+	distclean-tags
+
+dvi: dvi-am
+
+dvi-am:
+
+html: html-am
+
+html-am:
+
+info: info-am
+
+info-am:
+
+install-data-am:
+
+install-dvi: install-dvi-am
+
+install-dvi-am:
+
+install-exec-am:
+
+install-html: install-html-am
+
+install-html-am:
+
+install-info: install-info-am
+
+install-info-am:
+
+install-man:
+
+install-pdf: install-pdf-am
+
+install-pdf-am:
+
+install-ps: install-ps-am
+
+install-ps-am:
+
+installcheck-am:
+
+maintainer-clean: maintainer-clean-am
+	-rm -rf bgpd/$(DEPDIR) helpers/c/$(DEPDIR) isisd/$(DEPDIR) lib/$(DEPDIR) lib/cli/$(DEPDIR) ospf6d/$(DEPDIR)
+	-rm -f Makefile
+maintainer-clean-am: distclean-am maintainer-clean-generic
+
+mostlyclean: mostlyclean-am
+
+mostlyclean-am: mostlyclean-compile mostlyclean-generic \
+	mostlyclean-libtool
+
+pdf: pdf-am
+
+pdf-am:
+
+ps: ps-am
+
+ps-am:
+
+uninstall-am:
+
+.MAKE: check-am install-am install-strip
+
+.PHONY: CTAGS GTAGS TAGS all all-am check check-am clean \
+	clean-checkPROGRAMS clean-generic clean-libtool cscopelist-am \
+	ctags ctags-am distclean distclean-compile distclean-generic \
+	distclean-libtool distclean-tags distdir dvi dvi-am html \
+	html-am info info-am install install-am install-data \
+	install-data-am install-dvi install-dvi-am install-exec \
+	install-exec-am install-html install-html-am install-info \
+	install-info-am install-man install-pdf install-pdf-am \
+	install-ps install-ps-am install-strip installcheck \
+	installcheck-am installdirs maintainer-clean \
+	maintainer-clean-generic mostlyclean mostlyclean-compile \
+	mostlyclean-generic mostlyclean-libtool pdf pdf-am ps ps-am \
+	tags tags-am uninstall uninstall-am
+
+.PRECIOUS: Makefile
+
+.c_clippy.c:
+	@{ test -x $(top_builddir)/$(HOSTTOOLS)lib/clippy || $(MAKE) -C $(top_builddir)/$(HOSTTOOLS) lib/clippy; }
+	$(AM_V_CLIPPY)$(top_builddir)/$(HOSTTOOLS)lib/clippy $(top_srcdir)/python/clidef.py -o $@ $<
+
+.l.c:
+	$(AM_V_LEX)$(am__skiplex) $(LEXCOMPILE) $<
+.y.c:
+	$(AM_V_YACC)$(am__skipyacc) $(YACCCOMPILE) $<
+
+# Rules
+@HAVE_PROTOBUF_TRUE@.proto.pb.h:
+@HAVE_PROTOBUF_TRUE@	$(Q_PROTOC) -I$(top_srcdir) --cpp_out=$(top_srcdir) $(top_srcdir)/$^
+
+@HAVE_PROTOBUF_TRUE@.proto.pb-c.c:
+@HAVE_PROTOBUF_TRUE@	$(AM_V_PROTOC_C)$(Q_PROTOC_C) -I$(top_srcdir) --c_out=$(top_srcdir) $(top_srcdir)/$^
+@HAVE_PROTOBUF_TRUE@.pb-c.c.pb-c.h:
+@HAVE_PROTOBUF_TRUE@	@/bin/true
+
+PYTHON ?= python
+
+lib/cli/test_cli.o: lib/cli/test_cli_clippy.c
+ospf6d/test_lsdb.o: ospf6d/test_lsdb_clippy.c
+
+../vtysh/vtysh_cmd.c:
+	$(MAKE) -C ../vtysh vtysh_cmd.c
+
+lib/cli/test_commands_defun.c: ../vtysh/vtysh_cmd.c
+	sed \
+		-e 's/"vtysh\.h"/"tests.h"/' \
+		-e 's/vtysh_init_cmd/test_init_cmd/' \
+		-e 's/VTYSH_[A-Z][A-Z_0-9]*/0/g' \
+		< ../vtysh/vtysh_cmd.c \
+		> "$@"
+
+isisd/test_fuzz_isis_tlv_tests.h: $(top_srcdir)/tests/isisd/test_fuzz_isis_tlv_tests.h.gz
+	gzip -d < $(top_srcdir)/tests/isisd/test_fuzz_isis_tlv_tests.h.gz > "$@"
+isisd/isisd_test_fuzz_isis_tlv-test_fuzz_isis_tlv.$(OBJEXT): \
+	isisd/test_fuzz_isis_tlv_tests.h
+
+.PHONY: tests.xml
+tests.xml: $(check_PROGRAMS)
+	$(PYTHON) $(srcdir)/runtests.py --junitxml=$@ -v $(srcdir)
+check: tests.xml
+
+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:
diff --git a/tests/topotests/GUIDELINES.md b/tests/topotests/GUIDELINES.md
deleted file mode 100644
index 4bd373796..000000000
--- a/tests/topotests/GUIDELINES.md
+++ /dev/null
@@ -1,571 +0,0 @@
-# Guidelines
-
-This document describes how to use the topotests testing framework.
-
-
-## Executing Tests
-
-To run the whole suite of tests the following commands must be executed at the
-top level directory of topotest:
-
-```shell
-$ # Change to the top level directory of topotests.
-$ cd path/to/topotests
-$ # Tests must be run as root, since Mininet requires it.
-$ sudo pytest
-```
-
-In order to run a specific test, you can use the following command:
-
-```shell
-$ # running a specific topology
-$ sudo pytest ospf-topo1/
-$ # or inside the test folder
-$ cd ospf-topo1
-$ sudo pytest # to run all tests inside the directory
-$ sudo pytest test_ospf_topo1.py # to run a specific test
-$ # or outside the test folder
-$ cd ..
-$ sudo pytest ospf-topo1/test_ospf_topo1.py # to run a specific one
-```
-
-The output of the tested daemons will be available at the temporary folder of
-your machine:
-
-```shell
-$ ls /tmp/topotest/ospf-topo1.test_ospf-topo1/r1
-...
-zebra.err # zebra stderr output
-zebra.log # zebra log file
-zebra.out # zebra stdout output
-...
-```
-
-You can also run memory leak tests to get reports:
-
-```shell
-$ # Set the environment variable to apply to a specific test...
-$ sudo env TOPOTESTS_CHECK_MEMLEAK="/tmp/memleak_report_" pytest ospf-topo1/test_ospf_topo1.py
-$ # ...or apply to all tests adding this line to the configuration file
-$ echo 'memleak_path = /tmp/memleak_report_' >> pytest.ini
-$ # You can also use your editor
-$ $EDITOR pytest.ini
-$ # After running tests you should see your files:
-$ ls /tmp/memleak_report_*
-memleak_report_test_ospf_topo1.txt
-```
-
-
-## Writing a New Test
-
-This section will guide you in all recommended steps to produce a standard
-topology test.
-
-This is the recommended test writing routine:
-
-* Write a topology (Graphviz recommended)
-* Obtain configuration files
-* Write the test itself
-* Create a Pull Request
-
-
-### Topotest File Hierarchy
-
-Before starting to write any tests one must know the file hierarchy. The
-repository hierarchy looks like this:
-
-```shell
-$ cd path/to/topotest
-$ find ./*
-...
-./README.md # repository read me
-./GUIDELINES.md # this file
-./conftest.py # test hooks - pytest related functions
-./example-test # example test folder
-./example-test/__init__.py # python package marker - must always exist.
-./example-test/test_template.jpg # generated topology picture - see next section
-./example-test/test_template.dot # Graphviz dot file
-./example-test/test_template.py # the topology plus the test
-...
-./ospf-topo1 # the ospf topology test
-./ospf-topo1/r1 # router 1 configuration files
-./ospf-topo1/r1/zebra.conf # zebra configuration file
-./ospf-topo1/r1/ospfd.conf # ospf configuration file
-./ospf-topo1/r1/ospfroute.txt # 'show ip ospf' output reference file
-# removed other for shortness sake
-...
-./lib # shared test/topology functions
-./lib/topogen.py # topogen implementation
-./lib/topotest.py # topotest implementation
-```
-
-Guidelines for creating/editing topotest:
-
-* New topologies that don't fit the existing directories should create its own
-* Always remember to add the `__init__.py` to new folders, this makes auto
-  complete engines and pylint happy
-* Router (Quagga/FRR) specific code should go on topotest.py
-* Generic/repeated router actions should have an abstraction in
-  topogen.TopoRouter.
-* Generic/repeated non-router code should go to topotest.py
-* pytest related code should go to conftest.py (e.g. specialized asserts)
-
-
-### Defining the Topology
-
-The first step to write a new test is to define the topology. This step can be
-done in many ways, but the recommended is to use Graphviz to generate a drawing
-of the Topology. It allows us to see the topology graphically and to see the
-names of equipments, links and addresses.
-
-Here is an example of Graphviz dot file that generates the
-[template topology](example-test/test_template.dot) (the inlined code might get
-outdated, please see the linked file):
-
-```dot
-graph template {
-	label="template";
-
-	# Routers
-	r1 [
-		shape=doubleoctagon,
-		label="r1",
-		fillcolor="#f08080",
-		style=filled,
-	];
-	r2 [
-		shape=doubleoctagon,
-		label="r2",
-		fillcolor="#f08080",
-		style=filled,
-	];
-
-	# Switches
-	s1 [
-		shape=oval,
-		label="s1\n192.168.0.0/24",
-		fillcolor="#d0e0d0",
-		style=filled,
-	];
-	s2 [
-		shape=oval,
-		label="s2\n192.168.1.0/24",
-		fillcolor="#d0e0d0",
-		style=filled,
-	];
-
-	# Connections
-	r1 -- s1 [label="eth0\n.1"];
-
-	r1 -- s2 [label="eth1\n.100"];
-	r2 -- s2 [label="eth0\n.1"];
-}
-```
-
-Here is the produced graph:
-
-![template topology graph](example-test/test_template.jpg)
-
-
-### Generating / Obtaining Configuration Files
-
-In order to get the configuration files or command output for each router, we
-need to run the topology and execute commands in vtysh. The quickest way to
-achieve that is writing the topology building code and running the topology.
-
-To bootstrap your test topology, do the following steps:
-
-* Copy the template test
-
-```shell
-$ mkdir new-topo/
-$ touch new-topo/__init__.py
-$ cp example-test/test_template.py new-topo/test_new_topo.py
-```
-
-* Modify the template according to your dot file
-
-Here is the template topology described in the previous section in python code:
-
-```py
-class TemplateTopo(Topo):
-    "Test topology builder"
-    def build(self, *_args, **_opts):
-        "Build function"
-        tgen = get_topogen(self)
-
-        # Create 2 routers
-        for routern in range(1, 3):
-            tgen.add_router('r{}'.format(routern))
-
-        # Create a switch with just one router connected to it to simulate a
-        # empty network.
-        switch = tgen.add_switch('s1')
-        switch.add_link(tgen.gears['r1'])
-
-        # Create a connection between r1 and r2
-        switch = tgen.add_switch('s2')
-        switch.add_link(tgen.gears['r1'])
-        switch.add_link(tgen.gears['r2'])
-```
-
-* Run the topology
-
-Topogen allows us to run the topology without running any tests, you can do that
-using the following example commands:
-
-```shell
-$ # Running your bootstraped topology
-$ sudo pytest -s --topology-only new-topo/test_new_topo.py
-$ # Running the test_template.py topology
-$ sudo pytest -s --topology-only example-test/test_template.py
-$ # Running the ospf_topo1.py topology
-$ sudo pytest -s --topology-only ospf-topo1/test_ospf_topo1.py
-```
-
-Parameters explanation:
-
-* `-s`: actives input/output capture. This is required by mininet in order to show
-  the interactive shell.
-* `--topology-only`: don't run any tests, just build the topology.
-
-After executing the commands above, you should get the following terminal
-output:
-
-```shell
-=== test session starts ===
-platform linux2 -- Python 2.7.12, pytest-3.1.2, py-1.4.34, pluggy-0.4.0
-rootdir: /media/sf_src/topotests, inifile: pytest.ini
-collected 3 items
-
-ospf-topo1/test_ospf_topo1.py *** Starting controller
-
-*** Starting 6 switches
-switch1 switch2 switch3 switch4 switch5 switch6 ...
-r2: frr zebra started
-r2: frr ospfd started
-r3: frr zebra started
-r3: frr ospfd started
-r1: frr zebra started
-r1: frr ospfd started
-r4: frr zebra started
-r4: frr ospfd started
-*** Starting CLI:
-mininet>
-```
-
-The last line shows us that we are now using the Mininet CLI (Command Line
-Interface), from here you can call your router vtysh or even bash.
-
-Here are some commands example:
-
-```shell
-mininet> r1 ping 10.0.3.1
-PING 10.0.3.1 (10.0.3.1) 56(84) bytes of data.
-64 bytes from 10.0.3.1: icmp_seq=1 ttl=64 time=0.576 ms
-64 bytes from 10.0.3.1: icmp_seq=2 ttl=64 time=0.083 ms
-64 bytes from 10.0.3.1: icmp_seq=3 ttl=64 time=0.088 ms
-^C
---- 10.0.3.1 ping statistics ---
-3 packets transmitted, 3 received, 0% packet loss, time 1998ms
-rtt min/avg/max/mdev = 0.083/0.249/0.576/0.231 ms
-
-
-
-mininet> r1 ping 10.0.3.3
-PING 10.0.3.3 (10.0.3.3) 56(84) bytes of data.
-64 bytes from 10.0.3.3: icmp_seq=1 ttl=64 time=2.87 ms
-64 bytes from 10.0.3.3: icmp_seq=2 ttl=64 time=0.080 ms
-64 bytes from 10.0.3.3: icmp_seq=3 ttl=64 time=0.091 ms
-^C
---- 10.0.3.3 ping statistics ---
-3 packets transmitted, 3 received, 0% packet loss, time 2003ms
-rtt min/avg/max/mdev = 0.080/1.014/2.872/1.313 ms
-
-
-
-mininet> r3 vtysh
-
-Hello, this is FRRouting (version 3.1-devrzalamena-build).
-Copyright 1996-2005 Kunihiro Ishiguro, et al.
-
-frr-1# show running-config
-Building configuration...
-
-Current configuration:
-!
-frr version 3.1-devrzalamena-build
-frr defaults traditional
-hostname r3
-no service integrated-vtysh-config
-!
-log file zebra.log
-!
-log file ospfd.log
-!
-interface r3-eth0
- ip address 10.0.3.1/24
-!
-interface r3-eth1
- ip address 10.0.10.1/24
-!
-interface r3-eth2
- ip address 172.16.0.2/24
-!
-router ospf
- ospf router-id 10.0.255.3
- redistribute kernel
- redistribute connected
- redistribute static
- network 10.0.3.0/24 area 0
- network 10.0.10.0/24 area 0
- network 172.16.0.0/24 area 1
-!
-line vty
-!
-end
-frr-1#
-```
-
-After you successfully configured your topology, you can obtain the
-configuration files (per-daemon) using the following commands:
-
-```shell
-mininet> r3 vtysh -d ospfd
-
-Hello, this is FRRouting (version 3.1-devrzalamena-build).
-Copyright 1996-2005 Kunihiro Ishiguro, et al.
-
-frr-1# show running-config
-Building configuration...
-
-Current configuration:
-!
-frr version 3.1-devrzalamena-build
-frr defaults traditional
-no service integrated-vtysh-config
-!
-log file ospfd.log
-!
-router ospf
- ospf router-id 10.0.255.3
- redistribute kernel
- redistribute connected
- redistribute static
- network 10.0.3.0/24 area 0
- network 10.0.10.0/24 area 0
- network 172.16.0.0/24 area 1
-!
-line vty
-!
-end
-frr-1#
-```
-
-
-### Writing Tests
-
-Test topologies should always be bootstrapped from the
-[example-test/test_template.py](example-test/test_template.py),
-because it contains important boilerplate code that can't be avoided, like:
-
-* imports: os, sys, pytest, topotest/topogen and mininet topology class
-* The global variable CWD (Current Working directory): which is most likely
-  going to be used to reference the routers configuration file location
-
-  Example:
-
-```py
-# For all registered routers, load the zebra configuration file
-for rname, router in router_list.iteritems():
-    router.load_config(
-        TopoRouter.RD_ZEBRA,
-        os.path.join(CWD, '{}/zebra.conf'.format(rname))
-    )
-    # os.path.join() joins the CWD string with arguments adding the necessary
-    # slashes ('/'). Arguments must not begin with '/'.
-```
-
-* The topology class that inherits from Mininet Topo class
-
-```py
-class TemplateTopo(Topo):
-  def build(self, *_args, **_opts):
-    tgen = get_topogen(self)
-    # topology build code
-```
-
-* pytest `setup_module()` and `teardown_module()` to start the topology
-
-```py
-def setup_module(_m):
-    tgen = Topogen(TemplateTopo)
-    tgen.start_topology('debug')
-
-def teardown_module(_m):
-    tgen = get_topogen()
-    tgen.stop_topology()
-```
-
-* `__main__` initialization code (to support running the script directly)
-
-```py
-if __name__ == '__main__':
-    sys.exit(pytest.main(["-s"]))
-```
-
-Requirements:
-
-* Test code should always be declared inside functions that begin with the
-  `test_` prefix. Functions beginning with different prefixes will not be run by
-  pytest.
-* Configuration files and long output commands should go into separated files
-  inside folders named after the equipment.
-* Tests must be able to run without any interaction. To make sure your test
-  conforms with this, run it without the `-s` parameter.
-
-Tips:
-
-* Keep results in stack variables, so people inspecting code with `pdb` can
-  easily print their values.
-
-  Don't do this:
-
-  ```py
-  assert foobar(router1, router2)
-  ```
-
-  Do this instead:
-
-  ```py
-  result = foobar(router1, router2)
-  assert result
-  ```
-
-* Use `assert` messages to indicate where the test failed.
-
-  Example:
-
-  ```py
-  for router in router_list:
-      # ...
-      assert condition, 'Router "{}" condition failed'.format(router.name)
-  ```
-
-
-### Debugging Execution
-
-The most effective ways to inspect topology tests are:
-
-* Run pytest with `--pdb` option. This option will cause a pdb shell to appear
-  when an assertion fails
-
-  Example: `pytest -s --pdb ospf-topo1/test_ospf_topo1.py`
-
-* Set a breakpoint in the test code with `pdb`
-
-  Example:
-
-```py
-# Add the pdb import at the beginning of the file
-import pdb
-# ...
-
-# Add a breakpoint where you think the problem is
-def test_bla():
-  # ...
-  pdb.set_trace()
-  # ...
-```
-
-The [Python Debugger](https://docs.python.org/2.7/library/pdb.html) (pdb) shell
-allows us to run many useful operations like:
-
-* Setting breaking point on file/function/conditions (e.g. `break`, `condition`)
-* Inspecting variables (e.g. `p` (print), `pp` (pretty print))
-* Running python code
-
-TIP: The TopoGear (equipment abstraction class) implements the `__str__` method
-that allows the user to inspect equipment information.
-
-Example of pdb usage:
-
-```shell
-> /media/sf_src/topotests/ospf-topo1/test_ospf_topo1.py(121)test_ospf_convergence()
--> for rnum in range(1, 5):
-(Pdb) help
-Documented commands (type help <topic>):
-========================================
-EOF    bt         cont      enable  jump  pp       run      unt
-a      c          continue  exit    l     q        s        until
-alias  cl         d         h       list  quit     step     up
-args   clear      debug     help    n     r        tbreak   w
-b      commands   disable   ignore  next  restart  u        whatis
-break  condition  down      j       p     return   unalias  where
-
-Miscellaneous help topics:
-==========================
-exec  pdb
-
-Undocumented commands:
-======================
-retval  rv
-
-(Pdb) list
-116                                   title2="Expected output")
-117
-118     def test_ospf_convergence():
-119         "Test OSPF daemon convergence"
-120         pdb.set_trace()
-121  ->     for rnum in range(1, 5):
-122             router = 'r{}'.format(rnum)
-123  
-124             # Load expected results from the command
-125             reffile = os.path.join(CWD, '{}/ospfroute.txt'.format(router))
-126             expected = open(reffile).read()
-(Pdb) step
-> /media/sf_src/topotests/ospf-topo1/test_ospf_topo1.py(122)test_ospf_convergence()
--> router = 'r{}'.format(rnum)
-(Pdb) step
-> /media/sf_src/topotests/ospf-topo1/test_ospf_topo1.py(125)test_ospf_convergence()
--> reffile = os.path.join(CWD, '{}/ospfroute.txt'.format(router))
-(Pdb) print rnum
-1
-(Pdb) print router
-r1
-(Pdb) tgen = get_topogen()
-(Pdb) pp tgen.gears[router]
-<lib.topogen.TopoRouter object at 0x7f74e06c9850>
-(Pdb) pp str(tgen.gears[router])
-'TopoGear<name="r1",links=["r1-eth0"<->"s1-eth0","r1-eth1"<->"s3-eth0"]> TopoRouter<>'
-(Pdb) l 125
-120         pdb.set_trace()
-121         for rnum in range(1, 5):
-122             router = 'r{}'.format(rnum)
-123
-124             # Load expected results from the command
-125  ->         reffile = os.path.join(CWD, '{}/ospfroute.txt'.format(router))
-126             expected = open(reffile).read()
-127
-128             # Run test function until we get an result. Wait at most 60 seconds.
-129             test_func = partial(compare_show_ip_ospf, router, expected)
-130             result, diff = topotest.run_and_expect(test_func, '',
-(Pdb) router1 = tgen.gears[router]
-(Pdb) router1.vtysh_cmd('show ip ospf route')
-'============ OSPF network routing table ============\r\nN    10.0.1.0/24           [10] area: 0.0.0.0\r\n                           directly attached to r1-eth0\r\nN    10.0.2.0/24           [20] area: 0.0.0.0\r\n                           via 10.0.3.3, r1-eth1\r\nN    10.0.3.0/24           [10] area: 0.0.0.0\r\n                           directly attached to r1-eth1\r\nN    10.0.10.0/24          [20] area: 0.0.0.0\r\n                           via 10.0.3.1, r1-eth1\r\nN IA 172.16.0.0/24         [20] area: 0.0.0.0\r\n                           via 10.0.3.1, r1-eth1\r\nN IA 172.16.1.0/24         [30] area: 0.0.0.0\r\n                           via 10.0.3.1, r1-eth1\r\n\r\n============ OSPF router routing table =============\r\nR    10.0.255.2            [10] area: 0.0.0.0, ASBR\r\n                           via 10.0.3.3, r1-eth1\r\nR    10.0.255.3            [10] area: 0.0.0.0, ABR, ASBR\r\n                           via 10.0.3.1, r1-eth1\r\nR    10.0.255.4         IA [20] area: 0.0.0.0, ASBR\r\n                           via 10.0.3.1, r1-eth1\r\n\r\n============ OSPF external routing table ===========\r\n\r\n\r\n'
-(Pdb) tgen.mininet_cli()
-*** Starting CLI:
-mininet>
-```
-
-To enable more debug messages in other Topogen subsystems (like Mininet), more
-logging messages can be displayed by modifying the test configuration file
-`pytest.ini`:
-
-```ini
-[topogen]
-# Change the default verbosity line from 'info'...
-#verbosity = info
-# ...to 'debug'
-verbosity = debug
-```
diff --git a/tests/topotests/README.md b/tests/topotests/README.md
index a495675ee..d9d849b39 100644
--- a/tests/topotests/README.md
+++ b/tests/topotests/README.md
@@ -1,199 +1 @@
-# FRRouting Topology Tests with Mininet
-
-## Running tests with docker
-
-There is a docker image which allows to run topotests. Instructions can be
-found [here](docker/README.md).
-
-## Guidelines
-
-Instructions for  use, write or debug topologies can be found in the
-[guidelines](GUIDELINES.md). To learn/remember common code snippets see
-[here](SNIPPETS.md).
-
-Before creating a new topology, make sure that there isn't one already
-that does what you need. If nothing is similar, then you may create a
-new topology, preferably, using the newest
-[template](example-test/test_template.py).
-
-## Installation of Mininet for running tests
-Only tested with Ubuntu 16.04 and Ubuntu 18.04 (which uses Mininet 2.2.x)
-
-Instructions are the same for all setups (ie ExaBGP is only used for BGP 
-tests)
-
-### Installing Mininet Infrastructure:
-
-1. apt-get install mininet
-2. apt-get install python-pip
-3. apt-get install iproute
-4. pip install ipaddr
-5. pip install pytest
-6. pip install exabgp==3.4.17
-   (Newer 4.0 version of exabgp is not yet supported)
-7. useradd -d /var/run/exabgp/ -s /bin/false exabgp
-
-### Enable Coredumps
-Optional, will give better output
-
-1. apt-get install gdb
-2. disable apport (which move core files)
-
-	Set `enabled=0` in `/etc/default/apport`
-		
-3. Update security limits
-
-	Add/change `/etc/security/limits.conf` to
-	
-		#<domain>      <type>  <item>         <value>
-		*               soft    core          unlimited
-		root            soft    core          unlimited
-		*               hard    core          unlimited
-		root            hard    core          unlimited
- 
-4. reboot (for options to take effect)
-
-## FRRouting (FRR) Installation
-FRR needs to be installed separatly. It is assume to be configured 
-like the standard Ubuntu Packages:
-
-- Binaries in /usr/lib/frr
-- State Directory /var/run/frr
-- Running under user frr, group frr
-- vtygroup: frrvty
-- config directory: /etc/frr
-- For FRR Packages, install the dbg package as well for coredump decoding
-
-No FRR config needs to be done and no FRR daemons should be run ahead
-of the test. They are all started as part of the test
-
-#### Manual FRRouting (FRR) build
-
-If you prefer to manually build FRR, then use the following suggested config:
-
-	./configure \
-		--prefix=/usr \
-		--localstatedir=/var/run/frr \
-		--sbindir=/usr/lib/frr \
-		--sysconfdir=/etc/frr \
-		--enable-vtysh \
-		--enable-pimd \
-		--enable-multipath=64 \
-		--enable-user=frr \
-		--enable-group=frr \
-		--enable-vty-group=frrvty \
-		--with-pkg-extra-version=-my-manual-build
-
-And create frr User and frrvty group as follows:
-
-	addgroup --system --gid 92 frr
-	addgroup --system --gid 85 frrvty
-	adduser --system --ingroup frr --home /var/run/frr/ \
-	   --gecos "FRRouting suite" --shell /bin/false frr
-	usermod -G frrvty frr
-
-## Executing Tests
-
-#### Execute all tests with output to console
-
-	py.test -s -v --tb=no
-
-All test_* scripts in subdirectories are detected and executed (unless
-disabled in `pytest.ini` file)
-
-`--tb=no` disables the python traceback which might be irrelevant unless the
-test script itself is debugged
-
-#### Execute single test
-
-	cd test_to_be_run
-	./test_to_be_run.py
-
-For further options, refer to pytest documentation
-
-Test will set exit code which can be used with `git bisect`
-
-For the simulated topology, see the description in the python file
-
-If you need to clear the mininet setup between tests (if it isn't cleanly
-shutdown), then use the `mn -c` command to clean up the environment
-
-#### (Optional) StdErr log from daemos after exit
-
-To enable the reporting of any messages seen on StdErr after the
-daemons exit, the following env variable can be set.
-
-	export TOPOTESTS_CHECK_STDERR=Yes
-
-(The value doesn't matter at this time. The check is if the env variable
-exists or not)
-There is no pass/fail on this reporting. The Output will be reported to
-the console
-
-	export TOPOTESTS_CHECK_MEMLEAK="/home/mydir/memleak_"
-
-This will enable the check and output to console and the writing of
-the information to files with the given prefix (followed by testname),
-ie `/home/mydir/memcheck_test_bgp_multiview_topo1.txt` in case of a 
-memory leak.
-
-#### (Optional) Collect Memory Leak Information
-
-FreeRangeRouting processes have the capabilities to report remaining memory
-allocations upon exit. To enable the reporting of the memory, define an
-enviroment variable `TOPOTESTS_CHECK_MEMLEAK` with the file prefix, ie
-
-	export TOPOTESTS_CHECK_MEMLEAK="/home/mydir/memleak_"
-
-This will enable the check and output to console and the writing of
-the information to files with the given prefix (followed by testname),
-ie `/home/mydir/memcheck_test_bgp_multiview_topo1.txt` in case of a 
-memory leak.
-
-#### (Optional) Run topotests with GCC AddressSanitizer enabled
-
-Topotests can be run with the GCC AddressSanitizer. It requires GCC 4.8 or
-newer. (Ubuntu 16.04 as suggested here is fine with GCC 5 as default)
-For more information on AddressSanitizer, see 
-https://github.com/google/sanitizers/wiki/AddressSanitizer
-
-The checks are done automatically in the library call of `checkRouterRunning`
-(ie at beginning of tests when there is a check for all daemons running).
-No changes or extra configuration for topotests is required beside compiling
-the suite with AddressSanitizer enabled.
-
-If a daemon crashed, then the errorlog is checked for AddressSanitizer
-output. If found, then this is added with context (calling test) to
-`/tmp/AddressSanitizer.txt` in markdown compatible format.
-
-Compiling for GCC AddressSanitizer requires to use gcc as a linker as well
-(instead of ld). Here is a suggest way to compile frr with AddressSanitizer
-for `stable/3.0` branch:
-
-	git clone https://github.com/FRRouting/frr.git
-	cd frr
-	git checkout stable/3.0
-	./bootstrap.sh
-	export CC=gcc
-	export CFLAGS="-O1 -g -fsanitize=address -fno-omit-frame-pointer"
-	export LD=gcc
-	export LDFLAGS="-g -fsanitize=address -ldl"
-	./configure --enable-shared=no \
-		--prefix=/usr/lib/frr --sysconfdir=/etc/frr \
-		--localstatedir=/var/run/frr \
-		--sbindir=/usr/lib/frr --bindir=/usr/lib/frr \
-		--enable-exampledir=/usr/lib/frr/examples \
-		--with-moduledir=/usr/lib/frr/modules \
-		--enable-multipath=0 --enable-rtadv \
-		--enable-tcp-zebra --enable-fpm --enable-pimd
-	make
-	sudo make install
-	# Create symlink for vtysh, so topotest finds it in /usr/lib/frr
-	sudo ln -s /usr/lib/frr/vtysh /usr/bin/
-
-and create `frr` user and `frrvty` group as shown above
-
-## License
-
-All the configs and scripts are licensed under a ISC-style license. See
-Python scripts for details.
+Documentation is located in /doc/developer/topotests.rst
diff --git a/tests/topotests/SNIPPETS.md b/tests/topotests/SNIPPETS.md
deleted file mode 100644
index 6c16c44af..000000000
--- a/tests/topotests/SNIPPETS.md
+++ /dev/null
@@ -1,275 +0,0 @@
-# Snippets
-
-This document will describe common snippets of code that are frequently
-needed to perform some test checks.
-
-
-## Checking for router / test failures
-
-The following check uses the topogen API to check for software failure
-(e.g. zebra died) and/or for errors manually set by `Topogen.set_error()`.
-
-```py
-# Get the topology reference
-tgen = get_topogen()
-
-# Check for errors in the topology
-if tgen.routers_have_failure():
-    # Skip the test with the topology errors as reason
-    pytest.skip(tgen.errors)
-```
-
-
-## Checking FRR routers version
-
-This code snippet is usually run after the topology setup to make sure
-all routers instantiated in the topology have the correct software
-version.
-
-```py
-# Get the topology reference
-tgen = get_topogen()
-
-# Get the router list
-router_list = tgen.routers()
-
-# Run the check for all routers
-for router in router_list.values():
-    if router.has_version('<', '3'):
-        # Set topology error, so the next tests are skipped
-        tgen.set_error('unsupported version')
-```
-
-A sample of this snippet in a test can be found
-[here](ldp-vpls-topo1/test_ldp_vpls_topo1.py).
-
-
-## Interacting with equipments
-
-You might want to interact with the topology equipments during the tests
-and there are different ways to do so.
-
-Notes:
-
-1.
-> When using the Topogen API, all the equipments code derive from
-> `Topogear` ([lib/topogen.py](lib/topogen.py)). If you feel brave you
-> can look by yourself how the abstractions that will be mentioned here
-> works.
-
-2.
-> When not using the `Topogen` API there is only one way to interact
-> with the equipments, which is by calling the `mininet` API functions
-> directly to spawn commands.
-
-
-### Interacting with the Linux sandbox
-
-*Without `Topogen`*
-
-```py
-global net
-output = net['r1'].cmd('echo "foobar"')
-print 'output is: {}'.format(output)
-```
-
----
-
-*With `Topogen`*
-
-```py
-tgen = get_topogen()
-output = tgen.gears['r1'].run('echo "foobar"')
-print 'output is: {}'.format(output)
-```
-
-
-### Interacting with VTYSH
-
-*Without `Topogen`*
-
-```py
-global net
-output = net['r1'].cmd('vtysh "show ip route" 2>/dev/null')
-print 'output is: {}'.format(output)
-```
-
----
-
-*With `Topogen`*
-
-```py
-tgen = get_topogen()
-output = tgen.gears['r1'].vtysh_cmd("show ip route")
-print 'output is: {}'.format(output)
-```
-
-`Topogen` also supports sending multiple lines of command:
-
-```py
-tgen = get_topogen()
-output = tgen.gears['r1'].vtysh_cmd("""
-configure terminal
-router bgp 10
-  bgp router-id 10.0.255.1
-  neighbor 1.2.3.4 remote-as 10
-  !
-router bgp 11
-  bgp router-id 10.0.255.2
-  !
-""")
-print 'output is: {}'.format(output)
-```
-
-You might also want to run multiple commands and get only the commands
-that failed:
-
-```py
-tgen = get_topogen()
-output = tgen.gears['r1'].vtysh_multicmd("""
-configure terminal
-router bgp 10
-  bgp router-id 10.0.255.1
-  neighbor 1.2.3.4 remote-as 10
-  !
-router bgp 11
-  bgp router-id 10.0.255.2
-  !
-""", pretty_output=false)
-print 'output is: {}'.format(output)
-```
-
-Translating vtysh JSON output into Python structures:
-```py
-tgen = get_topogen()
-json_output = tgen.gears['r1'].vtysh_cmd("show ip route json", isjson=True)
-output = json.dumps(json_output, indent=4)
-print 'output is: {}'.format(output)
-
-# You can also access the data structure as normal. For example:
-# protocol = json_output['1.1.1.1/32']['protocol']
-# assert protocol == "ospf", "wrong protocol"
-```
-
-*NOTE:* `vtysh_(multi)cmd` is only available for router type of
-equipments.
-
-
-### Invoking `mininet` CLI
-
-*Without `Topogen`*
-
-```py
-CLI(net)
-```
-
----
-
-*With `Topogen`*
-```py
-tgen = get_topogen()
-tgen.mininet_cli()
-```
-
-
-## Reading files
-
-Loading a normal text file content in the current directory:
-
-```py
-# If you are using Topogen
-# CURDIR = CWD
-#
-# Otherwise find the directory manually:
-CURDIR = os.path.dirname(os.path.realpath(__file__))
-
-file_name = '{}/r1/show_ip_route.txt'.format(CURDIR)
-file_content = open(file_name).read()
-```
-
-Loading JSON from a file:
-
-```py
-import json
-
-file_name = '{}/r1/show_ip_route.json'.format(CURDIR)
-file_content = json.loads(open(file_name).read())
-```
-
-
-## Comparing JSON output
-
-After obtaining JSON output formated with Python data structures, you
-may use it to assert a minimalist schema:
-
-```py
-tgen = get_topogen()
-json_output = tgen.gears['r1'].vtysh_cmd("show ip route json", isjson=True)
-
-expect = {
-  '1.1.1.1/32': {
-    'protocol': 'ospf'
-  }
-}
-
-assertmsg = "route 1.1.1.1/32 was not learned through OSPF"
-assert json_cmp(json_output, expect) is None, assertmsg
-```
-
-`json_cmp` function description (it might be outdated, you can find the
-latest description in the source code at [lib/topotest.py](lib/topotest.py)):
-
-```text
-    JSON compare function. Receives two parameters:
-    * `d1`: json value
-    * `d2`: json subset which we expect
-
-    Returns `None` when all keys that `d1` has matches `d2`,
-    otherwise a string containing what failed.
-
-    Note: key absence can be tested by adding a key with value `None`.
-```
-
-
-## Pausing execution
-
-Preferably, choose the `sleep` function that `topotest` provides, as it
-prints a notice during the test execution to help debug topology test
-execution time.
-
-```py
-# Using the topotest sleep
-from lib import topotest
-
-topotest.sleep(10, 'waiting 10 seconds for bla')
-# or just tell it the time:
-# topotest.sleep(10)
-# It will print 'Sleeping for 10 seconds'.
-
-# Or you can also use the Python sleep, but it won't show anything
-from time import sleep
-sleep(5)
-```
-
-
-## `ip route` Linux command as JSON
-
-`topotest` has two helpers implemented that parses the output of
-`ip route` commands to JSON. It might simplify your comparison needs by
-only needing to provide a Python dictionary.
-
-```py
-from lib import topotest
-
-tgen = get_topogen()
-routes = topotest.ip4_route(tgen.gears['r1'])
-expected = {
-  '10.0.1.0/24': {},
-  '10.0.2.0/24': {
-    'dev': 'r1-eth0'
-  }
-}
-
-assertmsg = "failed to find 10.0.1.0/24 and/or 10.0.2.0/24"
-assert json_cmp(routes, expected) is None, assertmsg
-```