Add GetGenre endpoint

engine/browser_test.go

@@ -0,0 +1,49 @@
+package engine
+
+import (
+	"errors"
+
+	"github.com/cloudsonic/sonic-server/model"
+	. "github.com/onsi/ginkgo"
+	. "github.com/onsi/gomega"
+)
+
+var _ = Describe("Browser", func() {
+	var repo *mockGenreRepository
+	var b Browser
+
+	BeforeSuite(func() {
+		repo = &mockGenreRepository{data: model.Genres{
+			{Name: "Rock", SongCount: 1000, AlbumCount: 100},
+			{Name: "", SongCount: 13, AlbumCount: 13},
+			{Name: "Electronic", SongCount: 4000, AlbumCount: 40},
+		}}
+		b = &browser{genreRepo: repo}
+	})
+
+	It("returns sorted data", func() {
+		Expect(b.GetGenres()).To(Equal(model.Genres{
+			{Name: "<Empty>", SongCount: 13, AlbumCount: 13},
+			{Name: "Electronic", SongCount: 4000, AlbumCount: 40},
+			{Name: "Rock", SongCount: 1000, AlbumCount: 100},
+		}))
+	})
+
+	It("bubbles up errors", func() {
+		repo.err = errors.New("generic error")
+		_, err := b.GetGenres()
+		Expect(err).ToNot(BeNil())
+	})
+})
+
+type mockGenreRepository struct {
+	data model.Genres
+	err  error
+}
+
+func (r *mockGenreRepository) GetAll() (model.Genres, error) {
+	if r.err != nil {
+		return nil, r.err
+	}
+	return r.data, nil
+}