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// Copyright 2022 The Gitea Authors. All rights reserved.
// SPDX-License-Identifier: MIT
package cmd
import (
"fmt"
"io"
"os"
"path/filepath"
"strings"
"testing"
"code.gitea.io/gitea/models/unittest"
"code.gitea.io/gitea/modules/setting"
"code.gitea.io/gitea/modules/test"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
"github.com/urfave/cli/v2"
)
func TestMain(m *testing.M) {
unittest.MainTest(m)
}
func makePathOutput(workPath, customPath, customConf string) string {
return fmt.Sprintf("WorkPath=%s\nCustomPath=%s\nCustomConf=%s", workPath, customPath, customConf)
}
func newTestApp(testCmdAction func(ctx *cli.Context) error) *cli.App {
app := NewMainApp("version", "version-extra")
testCmd := &cli.Command{Name: "test-cmd", Action: testCmdAction}
prepareSubcommandWithConfig(testCmd, appGlobalFlags())
app.Commands = append(app.Commands, testCmd)
app.DefaultCommand = testCmd.Name
return app
}
type runResult struct {
Stdout string
Stderr string
ExitCode int
}
func runTestApp(app *cli.App, args ...string) (runResult, error) {
outBuf := new(strings.Builder)
errBuf := new(strings.Builder)
app.Writer = outBuf
app.ErrWriter = errBuf
exitCode := -1
defer test.MockVariableValue(&cli.ErrWriter, app.ErrWriter)()
defer test.MockVariableValue(&cli.OsExiter, func(code int) {
if exitCode == -1 {
exitCode = code // save the exit code once and then reset the writer (to simulate the exit)
app.Writer, app.ErrWriter, cli.ErrWriter = io.Discard, io.Discard, io.Discard
}
})()
err := RunMainApp(app, args...)
return runResult{outBuf.String(), errBuf.String(), exitCode}, err
}
func TestCliCmd(t *testing.T) {
defaultWorkPath := filepath.Dir(setting.AppPath)
defaultCustomPath := filepath.Join(defaultWorkPath, "custom")
defaultCustomConf := filepath.Join(defaultCustomPath, "conf/app.ini")
cli.CommandHelpTemplate = "(command help template)"
cli.AppHelpTemplate = "(app help template)"
cli.SubcommandHelpTemplate = "(subcommand help template)"
cases := []struct {
env map[string]string
cmd string
exp string
}{
// main command help
{
cmd: "./gitea help",
exp: "DEFAULT CONFIGURATION:",
},
// parse paths
{
cmd: "./gitea test-cmd",
exp: makePathOutput(defaultWorkPath, defaultCustomPath, defaultCustomConf),
},
{
cmd: "./gitea -c /tmp/app.ini test-cmd",
exp: makePathOutput(defaultWorkPath, defaultCustomPath, "/tmp/app.ini"),
},
{
cmd: "./gitea test-cmd -c /tmp/app.ini",
exp: makePathOutput(defaultWorkPath, defaultCustomPath, "/tmp/app.ini"),
},
{
env: map[string]string{"GITEA_WORK_DIR": "/tmp"},
cmd: "./gitea test-cmd",
exp: makePathOutput("/tmp", "/tmp/custom", "/tmp/custom/conf/app.ini"),
},
{
env: map[string]string{"GITEA_WORK_DIR": "/tmp"},
cmd: "./gitea test-cmd --work-path /tmp/other",
exp: makePathOutput("/tmp/other", "/tmp/other/custom", "/tmp/other/custom/conf/app.ini"),
},
{
env: map[string]string{"GITEA_WORK_DIR": "/tmp"},
cmd: "./gitea test-cmd --config /tmp/app-other.ini",
exp: makePathOutput("/tmp", "/tmp/custom", "/tmp/app-other.ini"),
},
}
app := newTestApp(func(ctx *cli.Context) error {
_, _ = fmt.Fprint(ctx.App.Writer, makePathOutput(setting.AppWorkPath, setting.CustomPath, setting.CustomConf))
return nil
})
var envBackup []string
for _, s := range os.Environ() {
if strings.HasPrefix(s, "GITEA_") && strings.Contains(s, "=") {
envBackup = append(envBackup, s)
}
}
clearGiteaEnv := func() {
for _, s := range os.Environ() {
if strings.HasPrefix(s, "GITEA_") {
_ = os.Unsetenv(s)
}
}
}
defer func() {
clearGiteaEnv()
for _, s := range envBackup {
k, v, _ := strings.Cut(s, "=")
_ = os.Setenv(k, v)
}
}()
for _, c := range cases {
clearGiteaEnv()
for k, v := range c.env {
_ = os.Setenv(k, v)
}
args := strings.Split(c.cmd, " ") // for test only, "split" is good enough
r, err := runTestApp(app, args...)
require.NoError(t, err, c.cmd)
assert.NotEmpty(t, c.exp, c.cmd)
assert.Contains(t, r.Stdout, c.exp, c.cmd)
}
}
func TestCliCmdError(t *testing.T) {
app := newTestApp(func(ctx *cli.Context) error { return fmt.Errorf("normal error") })
r, err := runTestApp(app, "./gitea", "test-cmd")
require.Error(t, err)
assert.Equal(t, 1, r.ExitCode)
assert.Equal(t, "", r.Stdout)
assert.Equal(t, "Command error: normal error\n", r.Stderr)
app = newTestApp(func(ctx *cli.Context) error { return cli.Exit("exit error", 2) })
r, err = runTestApp(app, "./gitea", "test-cmd")
require.Error(t, err)
assert.Equal(t, 2, r.ExitCode)
assert.Equal(t, "", r.Stdout)
assert.Equal(t, "exit error\n", r.Stderr)
app = newTestApp(func(ctx *cli.Context) error { return nil })
r, err = runTestApp(app, "./gitea", "test-cmd", "--no-such")
require.Error(t, err)
assert.Equal(t, 1, r.ExitCode)
assert.Equal(t, "Incorrect Usage: flag provided but not defined: -no-such\n\n", r.Stdout)
assert.Equal(t, "", r.Stderr) // the cli package's strange behavior, the error message is not in stderr ....
app = newTestApp(func(ctx *cli.Context) error { return nil })
r, err = runTestApp(app, "./gitea", "test-cmd")
require.NoError(t, err)
assert.Equal(t, -1, r.ExitCode) // the cli.OsExiter is not called
assert.Equal(t, "", r.Stdout)
assert.Equal(t, "", r.Stderr)
}
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