Add test for --secretfile

internal/app/cmd/create-runner-file_test.go

@@ -116,3 +116,64 @@ func Test_runCreateRunnerFile(t *testing.T) {
 	assert.NoError(t, err)
 	assert.Nil(t, resp.Msg.Task)
 }
+
+func Test_runCreateRunnerFileFromSecretFile(t *testing.T) {
+	//
+	// Set the .runner file to be in a temporary directory
+	//
+	dir := t.TempDir()
+	configFile := dir + "/config.yml"
+	runnerFile := dir + "/.runner"
+	cfg, err := config.LoadDefault("")
+	cfg.Runner.File = runnerFile
+	yamlData, err := yaml.Marshal(cfg)
+	assert.NoError(t, err)
+	assert.NoError(t, os.WriteFile(configFile, yamlData, 0o666))
+
+	instance, has := os.LookupEnv("FORGEJO_URL")
+	if !has {
+		instance = "https://code.forgejo.org"
+	}
+	secret, has := os.LookupEnv("FORGEJO_RUNNER_SECRET")
+	assert.True(t, has)
+	name := "testrunner"
+	secretFile := dir + "/secretfile"
+	f, err := os.OpenFile(secretFile, os.O_RDWR|os.O_CREATE|os.O_TRUNC, 0o600)
+	assert.NoError(t, err)
+	_, err := f.WriteString(secret)
+	assert.NoError(t, err)
+	err := f.Close()
+	assert.NoError(t, err)
+
+	//
+	// Run create-runner-file
+	//
+	ctx := context.Background()
+	cmd := createRunnerFileCmd(ctx, &configFile)
+	output, err := executeCommand(ctx, cmd, "--connect", "--secretfile", secretFile, "--instance", instance, "--name", name)
+	assert.NoError(t, err)
+	assert.EqualValues(t, "", output)
+
+	//
+	// Read back the runner file and verify its content
+	//
+	reg, err := config.LoadRegistration(runnerFile)
+	assert.NoError(t, err)
+	assert.EqualValues(t, secret, reg.Token)
+	assert.EqualValues(t, instance, reg.Address)
+
+	//
+	// Verify that fetching a task successfully returns there is
+	// no task for this runner
+	//
+	cli := client.New(
+		reg.Address,
+		cfg.Runner.Insecure,
+		reg.UUID,
+		reg.Token,
+		ver.Version(),
+	)
+	resp, err := cli.FetchTask(ctx, connect.NewRequest(&runnerv1.FetchTaskRequest{}))
+	assert.NoError(t, err)
+	assert.Nil(t, resp.Msg.Task)
+}