Scrape lyrics from Genius and lyrics refactor

spotdl/lyrics/providers/tests/test_lyricwikia_wrapper.py

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+import lyricwikia
+
+from spotdl.lyrics import LyricBase
+from spotdl.lyrics import exceptions
+from spotdl.lyrics.providers import LyricWikia
+
+import pytest
+
+
+class TestLyricWikia:
+    def test_subclass(self):
+        assert issubclass(LyricWikia, LyricBase)
+
+    def test_get_lyrics(self, monkeypatch):
+        # `LyricWikia` class uses the 3rd party method `lyricwikia.get_lyrics`
+        # internally and there is no need to test a 3rd party library as they
+        # have their own implementation of tests.
+        monkeypatch.setattr("lyricwikia.get_lyrics", lambda a, b, c, d: "awesome lyrics!")
+        track = LyricWikia("Lyricwikia", "Lyricwikia")
+        assert track.get_lyrics() == "awesome lyrics!"
+
+    def test_lyrics_not_found_error(self, monkeypatch):
+
+        def lyricwikia_lyrics_not_found(msg):
+            raise lyricwikia.LyricsNotFound(msg)
+
+        # Wrap `lyricwikia.LyricsNotFound` with `exceptions.LyricsNotFound` error.
+        monkeypatch.setattr("lyricwikia.get_lyrics", lambda a, b, c, d: lyricwikia_lyrics_not_found("Nope, no lyrics."))
+        track = LyricWikia("Lyricwikia", "Lyricwikia")
+        with pytest.raises(exceptions.LyricsNotFound):
+            track.get_lyrics()