Function TestWriteToPager

internal/display/write_test.go:15–110

TestWriteToPager tests the writeToPager function

(t *testing.T)

// TestWriteToPager tests the writeToPager function
func TestWriteToPager(t *testing.T) {
	// Skip these tests in CI/CD environments where interactive commands might not work
	if os.Getenv("CI") != "" {
		t.Skip("Skipping pager tests in CI environment")
	}

	// Note: We can't easily test os.Exit calls, so we focus on testing writeToPager
	// which contains the core logic

	t.Run("successful pager execution", func(t *testing.T) {
		// Save original stdout
		oldStdout := os.Stdout
		defer func() {
			os.Stdout = oldStdout
		}()

		// Create pipe for capturing output
		r, w, _ := os.Pipe()
		os.Stdout = w

		// Use 'cat' as a simple pager that just outputs input
		conf := config.Config{
			Pager: "cat",
		}

		// This will call os.Exit on error, so we need to be careful
		// We're using 'cat' which should always succeed
		input := "Test output\n"

		// Run in a goroutine to avoid blocking
		done := make(chan bool)
		go func() {
			writeToPager(input, conf)
			done <- true
		}()

		// Wait for completion or timeout
		select {
		case <-done:
			// Success
		}

		// Close write end and read output
		w.Close()
		var buf bytes.Buffer
		io.Copy(&buf, r)

		// Verify output
		if buf.String() != input {
			t.Errorf("expected output %q, got %q", input, buf.String())
		}
	})

	t.Run("pager with arguments", func(t *testing.T) {
		// Save original stdout
		oldStdout := os.Stdout
		defer func() {
			os.Stdout = oldStdout