[#2275] Refactored MySQL CB DHCPv4 unit tests

src/hooks/dhcp/mysql_cb/tests/mysql_cb_dhcp4_unittest.cc
    Refactored to use GenericConfigBackendDHCPv4Test,
    moved individual tests into functions in GenericConfigBackendDHCPv4Test

src/hooks/dhcp/pgsql_cb/tests/pgsql_cb_dhcp4_unittest.cc

src/lib/dhcpsrv/testutils/generic_cb_dhcp4_unittest.*
    Added functions for individual tests taken from
    mysql_cb_dhcp4_unittest.cc

src/lib/dhcpsrv/testutils/mysql_generic_backend_unittest.*
    MySqlGenericBackendTest::countRows() - chagned to static

1 files changed, 1 insertions, 1 deletions

diff --git a/src/lib/dhcpsrv/testutils/mysql_generic_backend_unittest.h b/src/lib/dhcpsrv/testutils/mysql_generic_backend_unittest.h
index 5e4d7a4d71..843b6c21a5 100644
--- a/src/lib/dhcpsrv/testutils/mysql_generic_backend_unittest.h
+++ b/src/lib/dhcpsrv/testutils/mysql_generic_backend_unittest.h
@@ -35,7 +35,7 @@ public:
     /// @param conn MySql connection to be used for the query.
     /// @param table Table name.
     /// @return Number of rows in the specified table.
-    size_t countRows(db::MySqlConnection& conn, const std::string& table) const;
+    static size_t countRows(db::MySqlConnection& conn, const std::string& table);
 };
 
 }