diff --git a/server/app/app_suite_test.go b/server/app/app_suite_test.go
new file mode 100644
index 000000000..d602d449c
--- /dev/null
+++ b/server/app/app_suite_test.go
@@ -0,0 +1,17 @@
+package app
+
+import (
+	"testing"
+
+	"github.com/deluan/navidrome/log"
+	"github.com/deluan/navidrome/tests"
+	. "github.com/onsi/ginkgo"
+	. "github.com/onsi/gomega"
+)
+
+func TestApp(t *testing.T) {
+	tests.Init(t, false)
+	log.SetLevel(log.LevelCritical)
+	RegisterFailHandler(Fail)
+	RunSpecs(t, "RESTful API Suite")
+}
diff --git a/server/app/serve_index_test.go b/server/app/serve_index_test.go
new file mode 100644
index 000000000..9eaa58010
--- /dev/null
+++ b/server/app/serve_index_test.go
@@ -0,0 +1,98 @@
+package app
+
+import (
+	"encoding/json"
+	"fmt"
+	"net/http/httptest"
+	"regexp"
+	"strconv"
+
+	"github.com/deluan/navidrome/conf"
+	"github.com/deluan/navidrome/model"
+	"github.com/deluan/navidrome/persistence"
+	. "github.com/onsi/ginkgo"
+	. "github.com/onsi/gomega"
+)
+
+var _ = Describe("ServeIndex", func() {
+	var ds model.DataStore
+	mockUser := &mockedUserRepo{}
+
+	BeforeEach(func() {
+		ds = &persistence.MockDataStore{MockedUser: mockUser}
+	})
+
+	It("adds app_config to index.html", func() {
+		r := httptest.NewRequest("GET", "/index.html", nil)
+		w := httptest.NewRecorder()
+
+		ServeIndex(ds)(w, r)
+
+		Expect(w.Code).To(Equal(200))
+		config := extractAppConfig(w.Body.String())
+		Expect(config).To(BeAssignableToTypeOf(map[string]interface{}{}))
+	})
+
+	It("sets firstTime = true when User table is empty", func() {
+		mockUser.empty = true
+		r := httptest.NewRequest("GET", "/index.html", nil)
+		w := httptest.NewRecorder()
+
+		ServeIndex(ds)(w, r)
+
+		config := extractAppConfig(w.Body.String())
+		Expect(config).To(HaveKeyWithValue("firstTime", true))
+	})
+
+	It("sets firstTime = false when User table is not empty", func() {
+		mockUser.empty = false
+		r := httptest.NewRequest("GET", "/index.html", nil)
+		w := httptest.NewRecorder()
+
+		ServeIndex(ds)(w, r)
+
+		config := extractAppConfig(w.Body.String())
+		Expect(config).To(HaveKeyWithValue("firstTime", false))
+	})
+
+	It("sets baseURL ", func() {
+		conf.Server.BaseURL = "base_url_test"
+		r := httptest.NewRequest("GET", "/index.html", nil)
+		w := httptest.NewRecorder()
+
+		ServeIndex(ds)(w, r)
+
+		config := extractAppConfig(w.Body.String())
+		Expect(config).To(HaveKeyWithValue("baseURL", "base_url_test"))
+	})
+})
+
+var appConfigRegex = regexp.MustCompile(`(?m)window.__APP_CONFIG__="([^"]*)`)
+
+func extractAppConfig(body string) map[string]interface{} {
+	config := make(map[string]interface{})
+	match := appConfigRegex.FindStringSubmatch(body)
+	if match == nil {
+		return config
+	}
+	str, err := strconv.Unquote("\"" + match[1] + "\"")
+	if err != nil {
+		panic(fmt.Sprintf("%s: %s", match[1], err))
+	}
+	if err := json.Unmarshal([]byte(str), &config); err != nil {
+		panic(err)
+	}
+	return config
+}
+
+type mockedUserRepo struct {
+	model.UserRepository
+	empty bool
+}
+
+func (u *mockedUserRepo) CountAll(...model.QueryOptions) (int64, error) {
+	if u.empty {
+		return 0, nil
+	}
+	return 1, nil
+}