test: add unit tests

handlers/lyrics_test.go

@@ -0,0 +1,45 @@
+package handlers
+
+import (
+	"net/http"
+	"net/http/httptest"
+	"testing"
+
+	"github.com/PuerkitoBio/goquery"
+	"github.com/sirupsen/logrus"
+)
+
+func TestLyrics(t *testing.T) {
+	url := "/The-silver-seas-catch-yer-own-train-lyrics"
+	title := "The Silver Seas"
+	artist := "Catch Yer Own Train"
+
+	r, err := http.NewRequest(http.MethodGet, url, nil)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	rr := httptest.NewRecorder()
+	l := logrus.New()
+	m := New(l)
+
+	m.ServeHTTP(rr, r)
+
+	defer rr.Result().Body.Close()
+
+	doc, err := goquery.NewDocumentFromReader(rr.Result().Body)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	docTitle := doc.Find("#metadata-info > h2").Text()
+	docArtist := doc.Find("#metadata-info > h1").Text()
+
+	if docTitle != title {
+		t.Fatalf("expected %q, got %q\n", title, docTitle)
+	}
+
+	if docArtist != artist {
+		t.Fatalf("expected %q, got %q\n", artist, docArtist)
+	}
+}