fix bug on issue view when not login (#1624)

* fix bug on issue view when not login

* hide issue watch when not login

* update the tests

* fix test on issue

integrations/issue_test.go

@@ -0,0 +1,21 @@
+// Copyright 2017 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 TestNoLoginViewIssue(t *testing.T) {
+	prepareTestEnv(t)
+
+	req, err := http.NewRequest("GET", "/user2/repo1/issues/1", nil)
+	assert.NoError(t, err)
+	resp := MakeRequest(req)
+	assert.EqualValues(t, http.StatusOK, resp.HeaderCode)
+}