Less verbose integration tests (#2123)

* Helper functions for intergration test boilerplate

integrations/version_test.go

@@ -19,8 +19,7 @@ func TestVersion(t *testing.T) {
 
 	setting.AppVer = "1.1.0+dev"
 	req := NewRequest(t, "GET", "/api/v1/version")
-	resp := MakeRequest(req)
-	assert.EqualValues(t, http.StatusOK, resp.HeaderCode)
+	resp := MakeRequest(t, req, http.StatusOK)
 
 	var version gitea.ServerVersion
 	DecodeJSON(t, resp, &version)