Golang CaptureOutput Examples

Example #1

File: help_test.go Project: GABONIA/cli

	. "github.com/onsi/gomega"
	"strings"
	"time"
)

var _ = Describe("Help", func() {
	It("shows help for all commands", func() {
		commandFactory := createCommandFactory()

		dummyTemplate := `
{{range .Commands}}{{range .CommandSubGroups}}{{range .}}
{{.Name}}
{{end}}{{end}}{{end}}
`
		output := io_helpers.CaptureOutput(func() {
			app.ShowAppHelp(dummyTemplate, createApp(commandFactory))
		})

		for _, metadata := range commandFactory.CommandMetadatas() {
			Expect(commandInOutput(metadata.Name, output)).To(BeTrue(), metadata.Name+" not in help")
		}
	})
})

func createCommandFactory() command_factory.Factory {
	fakeUI := &testterm.FakeUI{}
	configRepo := testconfig.NewRepository()
	manifestRepo := manifest.NewManifestDiskRepository()
	apiRepoLocator := api.NewRepositoryLocator(configRepo, map[string]net.Gateway{
		"auth":             net.NewUAAGateway(configRepo),
		"cloud-controller": net.NewCloudControllerGateway(configRepo, time.Now),

Example #2

File: ui_test.go Project: GABONIA/cli

	testconfig "github.com/cloudfoundry/cli/testhelpers/configuration"
	. "github.com/onsi/ginkgo"
	. "github.com/onsi/gomega"
	"io"
	"os"
	"strings"

	. "github.com/cloudfoundry/cli/testhelpers/matchers"
)

var _ = Describe("UI", func() {
	Describe("Printing message to stdout with Say", func() {
		It("prints strings", func() {
			io_helpers.SimulateStdin("", func(reader io.Reader) {
				output := io_helpers.CaptureOutput(func() {
					ui := NewUI(reader)
					ui.Say("Hello")
				})

				Expect("Hello").To(Equal(strings.Join(output, "")))
			})
		})

		It("prints formatted strings", func() {
			io_helpers.SimulateStdin("", func(reader io.Reader) {
				output := io_helpers.CaptureOutput(func() {
					ui := NewUI(reader)
					ui.Say("Hello %s", "World!")
				})

				Expect("Hello World!").To(Equal(strings.Join(output, "")))
			})