Add selecting tags on the compare page (#15723)

* Add selecting tags on the compare page

* Remove unused condition and change indentation

* Fix tag tab in dropdown to be black

* Add compare tag integration test

Co-authored-by: Jonathan Tran <jon@allspice.io>

1 files changed, 24 insertions, 0 deletions

diff --git a/integrations/compare_test.go b/integrations/compare_test.go
new file mode 100644
index 0000000000..08468cbfd6
--- /dev/null
+++ b/integrations/compare_test.go
@@ -0,0 +1,24 @@
+// Copyright 2021 The Gitea Authors. All rights reserved.
+// Use of this source code is governed by a MIT-style
+// license that can be found in the LICENSE file.
+
+package integrations
+
+import (
+	"net/http"
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func TestCompareTag(t *testing.T) {
+	defer prepareTestEnv(t)()
+
+	session := loginUser(t, "user2")
+	req := NewRequest(t, "GET", "/user2/repo1/compare/v1.1...master")
+	resp := session.MakeRequest(t, req, http.StatusOK)
+	htmlDoc := NewHTMLParser(t, resp.Body)
+	selection := htmlDoc.doc.Find(".choose.branch .filter.dropdown")
+	// A dropdown for both base and head.
+	assert.Lenf(t, selection.Nodes, 2, "The template has changed")
+}