public async Task GetMissionList_RequestSuccessful_ReturnMissionInfos()
{
var json = "[ { \"AdId\": \"abc\" }, { \"AdId\": \"abc\" } ]";
_requestor.Setup(g => g.GetRequest(It.IsAny <string>()))
.Returns(Task.FromResult(json));
var result = await _missionService.GetMissionList(It.IsAny <string>());
Assert.That(result.FirstOrDefault().AdId, Is.EqualTo("abc"));
}