add unit tests for Last.FM scrobbler

scrobble/lastfm/scrobbler_test.go

@@ -0,0 +1,114 @@
+package lastfm
+
+import (
+	"net/http"
+	"net/url"
+	"testing"
+	"time"
+
+	_ "github.com/mattn/go-sqlite3"
+	"github.com/stretchr/testify/require"
+	"go.senan.xyz/gonic/db"
+)
+
+func TestScrobble(t *testing.T) {
+	// arrange
+	t.Parallel()
+	require := require.New(t)
+
+	testDB, err := db.NewMock()
+	require.NoError(err)
+	err = testDB.Migrate(db.MigrationContext{})
+	require.NoError(err)
+
+	testDB.SetSetting("lastfm_api_key", "apiKey1")
+	testDB.SetSetting("lastfm_secret", "secret1")
+
+	user := &db.User{
+		LastFMSession: "lastFMSession1",
+	}
+
+	track := &db.Track{
+		Album: &db.Album{
+			TagTitle: "album1",
+			Artists: []*db.Artist{{
+				Name: "artist1",
+			}},
+		},
+		Length:         100,
+		TagBrainzID:    "916b242d-d439-4ae4-a439-556eef99c06e",
+		TagTitle:       "title1",
+		TagTrackArtist: "trackArtist1",
+		TagTrackNumber: 1,
+	}
+
+	stamp := time.Date(2023, 8, 12, 12, 34, 1, 200, time.UTC)
+
+	httpClient, shutdown := httpClientMock(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		require.Equal(http.MethodPost, r.Method)
+		require.Equal(url.Values{
+			"album":       []string{"album1"},
+			"albumArtist": []string{"artist1"},
+			"api_key":     []string{"apiKey1"},
+			"api_sig":     []string{"d235a0b911eb4923953f496c61a2a6af"},
+			"artist":      []string{"trackArtist1"},
+			"duration":    []string{"100"},
+			"method":      []string{"track.Scrobble"},
+			"sk":          []string{"lastFMSession1"},
+			"mbid":        []string{"916b242d-d439-4ae4-a439-556eef99c06e"},
+			"timestamp":   []string{"1691843641"},
+			"track":       []string{"title1"},
+			"trackNumber": []string{"1"},
+		}, r.URL.Query())
+		require.Equal("/2.0/", r.URL.Path)
+		require.Equal(baseURL, "https://"+r.Host+r.URL.Path)
+
+		w.WriteHeader(http.StatusOK)
+		w.Write([]byte(artistGetTopTracksResponse))
+	}))
+	defer shutdown()
+
+	client := &Client{&httpClient}
+	scrobbler := NewScrobbler(testDB, client)
+
+	// act
+	err = scrobbler.Scrobble(user, track, stamp, true)
+
+	// assert
+	require.NoError(err)
+}
+
+func TestScrobble_returnsWithoutLastFMSession(t *testing.T) {
+	// arrange
+	t.Parallel()
+	require := require.New(t)
+
+	scrobbler := Scrobbler{}
+
+	// act
+	err := scrobbler.Scrobble(&db.User{}, &db.Track{}, time.Now(), false)
+
+	// assert
+	require.NoError(err)
+}
+
+func TestScrobble_failsWithoutLastFMAPIKey(t *testing.T) {
+	// arrange
+	t.Parallel()
+	require := require.New(t)
+
+	testDB, err := db.NewMock()
+	require.NoError(err)
+
+	user := &db.User{
+		LastFMSession: "lastFMSession1",
+	}
+
+	scrobbler := NewScrobbler(testDB, nil)
+
+	// act
+	err = scrobbler.Scrobble(user, &db.Track{}, time.Now(), false)
+
+	// assert
+	require.Error(err)
+}