feat: add source tests for all wrapper sources

internal/sourcetest/sourcetest.go

@@ -0,0 +1,73 @@
+// Package sourcetest provides shared smoke-test helpers for catalogue sources.
+// Config checks (Name, Lang, ID) always run. Network calls are skipped under -short.
+package sourcetest
+
+import (
+	"testing"
+
+	"goyomi/internal/source"
+)
+
+// Run verifies source metadata and, unless -short is set, calls GetPopularManga
+// and GetLatestUpdates (when supported) against the live site.
+func Run(t *testing.T, s source.CatalogueSource, wantName, wantLang string) {
+	t.Helper()
+
+	if s == nil {
+		t.Fatal("source is nil")
+	}
+
+	if got := s.Name(); got != wantName {
+		t.Errorf("Name() = %q, want %q", got, wantName)
+	}
+	if got := s.Lang(); got != wantLang {
+		t.Errorf("Lang() = %q, want %q", got, wantLang)
+	}
+	if s.ID() == 0 {
+		t.Error("ID() == 0")
+	}
+
+	if testing.Short() {
+		return
+	}
+
+	t.Run("GetPopularManga", func(t *testing.T) {
+		page, err := s.GetPopularManga(1)
+		if err != nil {
+			t.Fatalf("GetPopularManga(1): %v", err)
+		}
+		if len(page.Mangas) == 0 {
+			t.Fatal("GetPopularManga returned 0 results")
+		}
+		for i, m := range page.Mangas {
+			if m.Title == "" {
+				t.Errorf("manga[%d].Title is empty", i)
+			}
+			if m.URL == "" {
+				t.Errorf("manga[%d].URL is empty", i)
+			}
+		}
+	})
+
+	if !s.SupportsLatest() {
+		return
+	}
+
+	t.Run("GetLatestUpdates", func(t *testing.T) {
+		page, err := s.GetLatestUpdates(1)
+		if err != nil {
+			t.Fatalf("GetLatestUpdates(1): %v", err)
+		}
+		if len(page.Mangas) == 0 {
+			t.Fatal("GetLatestUpdates returned 0 results")
+		}
+		for i, m := range page.Mangas {
+			if m.Title == "" {
+				t.Errorf("manga[%d].Title is empty", i)
+			}
+			if m.URL == "" {
+				t.Errorf("manga[%d].URL is empty", i)
+			}
+		}
+	})
+}