1 files changed, 162 insertions, 0 deletions
diff --git a/internal/app/loader_test.go b/internal/app/loader_test.go
new file mode 100644
index 0000000..538bca0
--- /dev/null
+++ b/internal/app/loader_test.go
@@ -0,0 +1,162 @@
+package app
+
+import (
+	"os"
+	"path/filepath"
+	"runtime"
+	"testing"
+	"time"
+)
+
+func TestCollectVideoPathsDetectsMP4(t *testing.T) {
+	dir := t.TempDir()
+	lower := filepath.Join(dir, "video.mp4")
+	upper := filepath.Join(dir, "UPPER.MP4")
+	for _, path := range []string{lower, upper} {
+		if err := os.WriteFile(path, []byte("dummy"), 0o644); err != nil {
+			t.Fatalf("write %s: %v", path, err)
+		}
+	}
+	paths, err := CollectVideoPathsForTest(dir)
+	if err != nil {
+		t.Fatalf("collect paths: %v", err)
+	}
+	if len(paths) != 2 {
+		t.Fatalf("expected 2 paths, got %d", len(paths))
+	}
+	want := map[string]struct{}{lower: {}, upper: {}}
+	for _, got := range paths {
+		if _, ok := want[got]; !ok {
+			t.Fatalf("unexpected path %s", got)
+		}
+	}
+}
+
+func TestCollectVideoPathsFollowsSymlink(t *testing.T) {
+	if runtime.GOOS == "windows" {
+		t.Skip("symlink permissions vary on Windows")
+	}
+	root := t.TempDir()
+	storage := t.TempDir()
+	video := filepath.Join(storage, "movie.mp4")
+	if err := os.WriteFile(video, []byte("dummy"), 0o644); err != nil {
+		t.Fatalf("write video: %v", err)
+	}
+	link := filepath.Join(root, "videos")
+	if err := os.Symlink(storage, link); err != nil {
+		t.Skipf("symlink not supported: %v", err)
+	}
+	paths, err := CollectVideoPathsForTest(root)
+	if err != nil {
+		t.Fatalf("collect paths: %v", err)
+	}
+	expected := filepath.Join(link, "movie.mp4")
+	if len(paths) != 1 || paths[0] != expected {
+		t.Fatalf("expected %s, got %v", expected, paths)
+	}
+}
+
+func TestLoadVideosWithCache(t *testing.T) {
+	dir := t.TempDir()
+	video := filepath.Join(dir, "video.mp4")
+	if err := os.WriteFile(video, []byte("dummy"), 0o644); err != nil {
+		t.Fatalf("write: %v", err)
+	}
+	cache := newDurationCache(filepath.Join(dir, "cache.json"))
+	info, err := os.Stat(video)
+	if err != nil {
+		t.Fatalf("stat: %v", err)
+	}
+	_ = cache.Record(video, info, time.Minute)
+	progress := &loadProgress{}
+	progress.Reset()
+	videos, pending, err := loadVideos(dir, cache, progress)
+	if err != nil {
+		t.Fatalf("loadVideos: %v", err)
+	}
+	if len(videos) != 1 || len(pending) != 0 {
+		t.Fatalf("expected cached video without pending: videos=%d pending=%d", len(videos), len(pending))
+	}
+	if videos[0].Duration != time.Minute {
+		t.Fatalf("expected cached duration")
+	}
+}
+
+func TestProbeDurationsCmdHandlesMissingBinary(t *testing.T) {
+	cmd := probeDurationsCmd("/no/such/file.mp4", nil)
+	msg := cmd()
+	update := msg.(durationUpdateMsg)
+	if update.err == nil {
+		t.Fatalf("expected error from ffprobe")
+	}
+}
+
+func TestProbeDurationSuccess(t *testing.T) {
+	dir := t.TempDir()
+	script := filepath.Join(dir, "ffprobe")
+	if err := os.WriteFile(script, []byte("#!/bin/sh\necho 5\n"), 0o755); err != nil {
+		t.Fatalf("write script: %v", err)
+	}
+	oldPath := os.Getenv("PATH")
+	t.Setenv("PATH", dir+":"+oldPath)
+	dur, err := probeDuration("dummy.mp4")
+	if err != nil {
+		t.Fatalf("probeDuration: %v", err)
+	}
+	if dur != 5*time.Second {
+		t.Fatalf("expected 5s duration, got %v", dur)
+	}
+}
+
+func TestPlayVideoCmdMissingBinary(t *testing.T) {
+	cmd := playVideoCmd("/no/such/file.mp4", "")
+	msg := cmd()
+	result := msg.(playVideoMsg)
+	if result.path != "/no/such/file.mp4" {
+		t.Fatalf("unexpected path %s", result.path)
+	}
+}
+
+func TestRecordIfVideo(t *testing.T) {
+	var acc []string
+	if err := recordIfVideo("test.mp4", &acc); err != nil {
+		t.Fatalf("recordIfVideo: %v", err)
+	}
+	if len(acc) != 1 {
+		t.Fatalf("expected video recorded")
+	}
+}
+
+func TestHandleSymlinkBrokenVideo(t *testing.T) {
+	dir := t.TempDir()
+	symlink := filepath.Join(dir, "clip.mp4")
+	target := filepath.Join(dir, "missing.mp4")
+	if err := os.Symlink(target, symlink); err != nil {
+		t.Skipf("symlink unsupported: %v", err)
+	}
+	var acc []string
+	if err := handleSymlink(symlink, symlink, map[string]struct{}{}, &acc); err != nil {
+		t.Fatalf("handleSymlink: %v", err)
+	}
+	if len(acc) != 1 {
+		t.Fatalf("expected symlink video recorded")
+	}
+}
+
+func TestLoadVideosHandlesStatError(t *testing.T) {
+	if runtime.GOOS == "windows" {
+		t.Skip("symlink permissions vary on Windows")
+	}
+	dir := t.TempDir()
+	broken := filepath.Join(dir, "broken.mp4")
+	if err := os.Symlink(filepath.Join(dir, "missing.mp4"), broken); err != nil {
+		t.Skipf("symlink unsupported: %v", err)
+	}
+	videos, _, err := loadVideos(dir, nil, nil)
+	if err != nil {
+		t.Fatalf("loadVideos: %v", err)
+	}
+	if len(videos) != 1 || videos[0].Err == nil {
+		t.Fatalf("expected stat error recorded, got %+v", videos)
+	}
+}