test(e2e): framework E2E binary asli (pty + emulator layar) — 6 skenario hijau

e2e/e2e_test.go

@@ -0,0 +1,206 @@
+// Package e2e — pengujian end-to-end binary tia-love yang sebenarnya.
+//
+// Binary hasil `go build` dijalankan di dalam pty, output-nya diumpankan ke
+// emulator layar mini (screen_test.go), lalu skenario mengirim tombol dan
+// memverifikasi isi LAYAR — bukan byte mentah.
+//
+// Jalankan: go test ./e2e/ -v -count=1
+package e2e
+
+import (
+	"os"
+	"os/exec"
+	"path/filepath"
+	"runtime"
+	"strings"
+	"sync"
+	"testing"
+	"time"
+
+	"github.com/creack/pty"
+)
+
+const (
+	rows = 40
+	cols = 120
+)
+
+var binPath string
+
+func TestMain(m *testing.M) {
+	tmp, err := os.MkdirTemp("", "tia-e2e-*")
+	if err != nil {
+		panic(err)
+	}
+	binPath = filepath.Join(tmp, "tia-love")
+
+	build := exec.Command("go", "build", "-o", binPath, "./cmd/tia-love")
+	build.Dir = ".." // root modul (test dijalankan dari e2e/)
+	if out, err := build.CombinedOutput(); err != nil {
+		_ = os.RemoveAll(tmp)
+		panic("build binary e2e gagal: " + err.Error() + "\n" + string(out))
+	}
+
+	code := m.Run()
+	_ = os.RemoveAll(tmp)
+	os.Exit(code)
+}
+
+type tui struct {
+	t      *testing.T
+	cmd    *exec.Cmd
+	ptmx   *os.File
+	mu     sync.Mutex
+	scr    *screen
+	waited bool
+}
+
+func startTUI(t *testing.T) *tui {
+	t.Helper()
+	if runtime.GOOS == "windows" {
+		t.Skip("e2e pty tidak didukung di Windows")
+	}
+	cmd := exec.Command(binPath)
+	ptmx, err := pty.StartWithSize(cmd, &pty.Winsize{Rows: rows, Cols: cols})
+	if err != nil {
+		t.Fatalf("start pty: %v", err)
+	}
+	u := &tui{t: t, cmd: cmd, ptmx: ptmx, scr: newScreen(rows, cols)}
+	go func() {
+		buf := make([]byte, 32*1024)
+		for {
+			n, err := ptmx.Read(buf)
+			if n > 0 {
+				u.mu.Lock()
+				u.scr.write(buf[:n])
+				u.mu.Unlock()
+			}
+			if err != nil {
+				return
+			}
+		}
+	}()
+	t.Cleanup(func() {
+		_ = ptmx.Close()
+		if cmd.Process != nil {
+			_ = cmd.Process.Kill()
+		}
+		if !u.waited {
+			_, _ = cmd.Process.Wait()
+		}
+	})
+	return u
+}
+
+func (u *tui) send(s string) {
+	u.t.Helper()
+	if _, err := u.ptmx.Write([]byte(s)); err != nil {
+		u.t.Fatalf("tulis ke pty: %v", err)
+	}
+}
+
+func (u *tui) screen() string {
+	u.mu.Lock()
+	defer u.mu.Unlock()
+	return u.scr.String()
+}
+
+func (u *tui) waitContains(substr string, d time.Duration) {
+	u.t.Helper()
+	deadline := time.Now().Add(d)
+	for time.Now().Before(deadline) {
+		if strings.Contains(u.screen(), substr) {
+			return
+		}
+		time.Sleep(50 * time.Millisecond)
+	}
+	u.t.Fatalf("layar tidak memuat %q dalam %v.\n--- snapshot layar ---\n%s", substr, d, u.screen())
+}
+
+func (u *tui) waitExit(d time.Duration) int {
+	u.t.Helper()
+	done := make(chan error, 1)
+	go func() { done <- u.cmd.Wait() }()
+	select {
+	case err := <-done:
+		u.waited = true
+		if err == nil {
+			return 0
+		}
+		if ee, ok := err.(*exec.ExitError); ok {
+			return ee.ExitCode()
+		}
+		u.t.Fatalf("wait: %v", err)
+	case <-time.After(d):
+		u.t.Fatalf("proses tidak keluar dalam %v", d)
+	}
+	return -1
+}
+
+// --- Skenario ---
+
+func TestVersionCommand(t *testing.T) {
+	out, err := exec.Command(binPath, "version").CombinedOutput()
+	if err != nil {
+		t.Fatalf("`tia-love version` gagal: %v (%s)", err, out)
+	}
+	if !strings.Contains(string(out), "tia") {
+		t.Fatalf("output version tak terduga: %q", out)
+	}
+}
+
+func TestUnknownCommandExitCode(t *testing.T) {
+	err := exec.Command(binPath, "perintah-hantu").Run()
+	ee, ok := err.(*exec.ExitError)
+	if !ok {
+		t.Fatalf("mau ExitError, dapat %v", err)
+	}
+	if ee.ExitCode() != 2 {
+		t.Fatalf("exit code %d, mau 2", ee.ExitCode())
+	}
+}
+
+func TestTUIBootAndQuit(t *testing.T) {
+	u := startTUI(t)
+	u.waitContains("tia — Terminal Is A My Way", 5*time.Second)
+	u.waitContains("audio:", 5*time.Second)
+	u.send("q")
+	if code := u.waitExit(5 * time.Second); code != 0 {
+		t.Fatalf("exit code %d, mau 0", code)
+	}
+}
+
+func TestToastAppears(t *testing.T) {
+	u := startTUI(t)
+	u.waitContains("tia — Terminal Is A My Way", 5*time.Second)
+	u.send("t")
+	u.waitContains("SUKSES", 3*time.Second)
+	u.send("q")
+	u.waitExit(5 * time.Second)
+}
+
+func TestReducedMotionToggle(t *testing.T) {
+	u := startTUI(t)
+	u.waitContains("tia — Terminal Is A My Way", 5*time.Second)
+	u.send("a") // animasi dimatikan
+	u.waitContains("animasi — fps", 3*time.Second)
+	u.send("a") // nyalakan lagi — tidak boleh crash
+	u.send("q")
+	if code := u.waitExit(5 * time.Second); code != 0 {
+		t.Fatalf("exit code %d, mau 0", code)
+	}
+}
+
+func TestMouseAndNavigateKeys(t *testing.T) {
+	u := startTUI(t)
+	u.waitContains("belum ada klik", 5*time.Second)
+	// klik kiri di tengah layar (SGR 1006: ESC [ < 0 ; x ; y M)
+	u.send("\x1b[<0;60;10M\x1b[<0;60;10m")
+	u.waitContains("klik #1", 3*time.Second)
+	u.send("j")
+	u.send("k")
+	u.send("q")
+	if code := u.waitExit(5 * time.Second); code != 0 {
+		t.Fatalf("exit code %d, mau 0", code)
+	}
+}