},
	}

	for i, testCase := range testCases {
		if testCase.envName != "" {
			t.Setenv(testCase.envName, testCase.envValue)
			if testCase.envName == "MESOS_CONTAINER_NAME" {
				t.Setenv("MARATHON_APP_LABEL_DCOS_PACKAGE_VERSION", "mesos-1111")
			}
		}

		str := getUserAgent(testCase.mode)
		expectedStr := testCase.expectedStr
		if IsDocker() {

	}
	if IsSourceBuild() {
		uaAppend("; ", "source")
	}

	uaAppend(" ", Version)
	uaAppend(" ", ReleaseTag)
	uaAppend(" ", CommitID)
	if IsDCOS() {
		universePkgVersion := env.Get("MARATHON_APP_LABEL_DCOS_PACKAGE_VERSION", "")
		// On DC/OS environment try to the get universe package version.
		if universePkgVersion != "" {
			uaAppend(" universe-", universePkgVersion)
		}
	}

	if IsKubernetes() {