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gitea/cmd/main_test.go

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// Copyright 2022 The Gitea Authors. All rights reserved.
// SPDX-License-Identifier: MIT
package cmd
import (
"fmt"
"io"
"strings"
"testing"
"code.gitea.io/gitea/models/unittest"
"code.gitea.io/gitea/modules/test"
"github.com/stretchr/testify/assert"
"github.com/urfave/cli"
)
func TestMain(m *testing.M) {
unittest.MainTest(m, &unittest.TestOptions{
GiteaRootPath: "..",
})
}
func newTestApp(testCmdAction func(ctx *cli.Context) error) *cli.App {
app := cli.NewApp()
app.HelpName = "gitea"
testCmd := cli.Command{Name: "test-cmd", Action: testCmdAction}
app.Commands = append(app.Commands, testCmd)
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 TestCliCmdError(t *testing.T) {
app := newTestApp(func(ctx *cli.Context) error { return fmt.Errorf("normal error") })
r, err := runTestApp(app, "./gitea", "test-cmd")
assert.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.NewExitError("exit error", 2) })
r, err = runTestApp(app, "./gitea", "test-cmd")
assert.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")
assert.Error(t, err)
assert.Equal(t, 1, r.ExitCode)
assert.EqualValues(t, "Incorrect Usage: flag provided but not defined: -no-such\n\nNAME:\n gitea test-cmd - \n\nUSAGE:\n gitea test-cmd [arguments...]\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")
assert.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)
}