如何在.NET测试方法中使用httpClient核心FileContentResult

[TestMethod]
public async Task TestHttpClientFileContentResult()
{
    // 创建HttpClient实例
    using (HttpClient client = new HttpClient())
    {
        // 发送HTTP请求并获取响应
        HttpResponseMessage response = await client.GetAsync("http://example.com/api/file");

        // 确保请求成功
        response.EnsureSuccessStatusCode();

        // 获取FileContentResult对象
        FileContentResult fileResult = new FileContentResult(await response.Content.ReadAsByteArrayAsync(), "application/octet-stream");

        // 对获取到的FileContentResult对象进行断言
        Assert.IsNotNull(fileResult);
        Assert.AreEqual("example.txt", fileResult.FileDownloadName);
        Assert.AreEqual("application/octet-stream", fileResult.ContentType);
        Assert.AreEqual(Encoding.UTF8.GetBytes("Hello, World!"), fileResult.FileContents);
    }
}