map nyaa://q=X to https://nyaa.si/.../

src/feeds/http_test.go

@@ -74,3 +74,24 @@ func TestFeedFetch(t *testing.T) {
 		t.Errorf("expected\n\t%+v but got \n\t%+v", expect, items[0])
 	}
 }
+
+func TestFeedFetchURL(t *testing.T) {
+	cases := map[string]string{
+		"http://host/path?k=v":  "http://host/path?k=v",
+		"https://host/path?k=v": "https://host/path?k=v",
+		"nyaa://?q=a b&u=c d":   "https://nyaa.si/?c=0_0&f=0&page=rss&q=a+b&u=c+d",
+	}
+
+	for given, want := range cases {
+		given := given
+		want := want
+		t.Run(given, func(t *testing.T) {
+			f := feeds.Feed{}
+			f.Version.URL = given
+			got, _ := f.FetchURL()
+			if got := got.String(); got != want {
+				t.Errorf("expected %q but got %q", want, got)
+			}
+		})
+	}
+}