feat(youtube): VideoByID for arbitrary-video metadata (paste-a-URL)

videos.list (part=snippet) for a single id, including channels the user does not follow. Data API call (1 quota unit), NOT the rate-limited caption path — ungated metadata; only the later transcript fetch hits globalFetchGate. Returns a subscription-less domain.Video scoped to the user, or ErrVideoNotFound for a deleted/private/typo'd id. Foundation for Feature 2. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
2026-06-09 21:43:28 +02:00
parent 59050c4db6
commit 2907801aca
2 changed files with 104 additions and 0 deletions
@@ -0,0 +1,59 @@
+package youtube
+
+import (
+	"context"
+	"errors"
+	"net/http"
+	"testing"
+
+	"gitea.d-ma.be/mathias/tapir/internal/domain"
+)
+
+func TestVideoByID(t *testing.T) {
+	const id = "dQw4w9WgXcQ"
+	a, secrets := newTestAdapter(t, func(w http.ResponseWriter, r *http.Request) {
+		if r.URL.Path != "/videos" {
+			t.Errorf("unexpected path %q (must use videos.list)", r.URL.Path)
+		}
+		if got := r.URL.Query().Get("id"); got != id {
+			t.Errorf("expected id=%s, got %q", id, got)
+		}
+		if got := r.URL.Query().Get("part"); got != "snippet" {
+			t.Errorf("expected part=snippet, got %q", got)
+		}
+		_, _ = w.Write([]byte(`{"items":[{"snippet":{"title":"Never Gonna Give You Up","publishedAt":"2026-05-20T09:00:00Z"}}]}`))
+	})
+
+	v, err := a.VideoByID(context.Background(), "u1", id)
+	if err != nil {
+		t.Fatalf("VideoByID: %v", err)
+	}
+	if v.UserID != "u1" {
+		t.Errorf("UserID = %q, want u1", v.UserID)
+	}
+	if v.ProviderVideoID != id || v.Title != "Never Gonna Give You Up" {
+		t.Errorf("unexpected video: %+v", v)
+	}
+	if v.Provider != domain.ProviderYouTube || v.URL != "https://www.youtube.com/watch?v="+id {
+		t.Errorf("video not wired correctly: %+v", v)
+	}
+	if v.PublishedAt.IsZero() {
+		t.Errorf("expected publishedAt parsed, got zero")
+	}
+	if v.SubscriptionID != "" {
+		t.Errorf("a pasted video must have no subscription, got %q", v.SubscriptionID)
+	}
+	if secrets.byRef == nil {
+		t.Errorf("token must be resolved by reference through the SecretStore")
+	}
+}
+
+func TestVideoByIDNotFound(t *testing.T) {
+	a, _ := newTestAdapter(t, func(w http.ResponseWriter, _ *http.Request) {
+		_, _ = w.Write([]byte(`{"items":[]}`))
+	})
+	_, err := a.VideoByID(context.Background(), "u1", "missingvid0")
+	if !errors.Is(err, ErrVideoNotFound) {
+		t.Fatalf("VideoByID for missing id = %v, want ErrVideoNotFound", err)
+	}
+}