使用moq模拟单元测试的异步方法?

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下面是我要测试的方法:

public async Task<bool> QueueNotificationAsync(IHttpClient client, Email email)
{
    // do stuff
    try
    {
        // The test hangs here, never returning
        HttpResponseMessage response = await client.PostAsync(uri, content);

        // more logic here
    }
    // more stuff
}

以下是我的单元测试方法:

[TestMethod]
public async Task QueueNotificationAsync_Completes_With_ValidEmail()
{
    Email email = new Email()
    {
        FromAddress = "bob@example.com",
        ToAddress = "bill@example.com",
        CCAddress = "brian@example.com",
        BCCAddress = "ben@example.com",
        Subject = "Hello",
        Body = "Hello World."
    };
    var mockClient = new Mock<IHttpClient>();
    mockClient.Setup(c => c.PostAsync(
        It.IsAny<Uri>(),
        It.IsAny<HttpContent>()
        )).Returns(() => new Task<HttpResponseMessage>(() => new HttpResponseMessage(System.Net.HttpStatusCode.OK)));

    bool result = await _notificationRequestService.QueueNotificationAsync(mockClient.Object, email);

    Assert.IsTrue(result, "Queue failed.");
}

提问于
用户回答回答于

...
.Returns(Task.FromResult(new HttpResponseMessage(System.Net.HttpStatusCode.OK)));

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