add artistinfocache test

artistinfocache/artistinfocache_test.go

@@ -0,0 +1,52 @@
+package artistinfocache
+
+import (
+	"context"
+	"net/http"
+	"sync/atomic"
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+	"go.senan.xyz/gonic/db"
+	"go.senan.xyz/gonic/mockfs"
+	"go.senan.xyz/gonic/scrobble/lastfm"
+	"go.senan.xyz/gonic/scrobble/lastfm/mockclient"
+)
+
+func TestInfoCache(t *testing.T) {
+	m := mockfs.New(t)
+	m.AddItems()
+	m.ScanAndClean()
+
+	assert := assert.New(t)
+
+	var artist db.Artist
+	assert.NoError(m.DB().Preload("Info").Find(&artist).Error)
+	assert.Greater(artist.ID, 0)
+	assert.Nil(artist.Info)
+
+	var count atomic.Int32
+	lastfmClient := lastfm.NewClientCustom(mockclient.New(t, func(w http.ResponseWriter, r *http.Request) {
+		switch method := r.URL.Query().Get("method"); method {
+		case "artist.getInfo":
+			count.Add(1)
+			w.Write(mockclient.ArtistGetInfoResponse)
+		case "artist.getTopTracks":
+			w.Write(mockclient.ArtistGetTopTracksResponse)
+		}
+	}))
+
+	cache := New(m.DB(), lastfmClient)
+	_, err := cache.GetOrLookup(context.Background(), "", artist.ID)
+	require.NoError(t, err)
+	_, err = cache.GetOrLookup(context.Background(), "", artist.ID)
+	require.NoError(t, err)
+
+	require.Equal(t, int32(1), count.Load())
+
+	assert.NoError(m.DB().Preload("Info").Find(&artist, "id=?", artist.ID).Error)
+	assert.Greater(artist.ID, 0)
+	assert.NotNil(artist.Info)
+	assert.Equal("Summary", artist.Info.Biography)
+}