英文:
Azure function v4 unit tests
问题
这是一个生成的函数示例，我该如何测试Azure函数？
public static class Test
{
[Function("Test")]
public static HttpResponseData Run([HttpTrigger(AuthorizationLevel.Function, "get", "post")] HttpRequestData req,
FunctionContext executionContext)
{
var logger = executionContext.GetLogger("BLEbLE");
logger.LogInformation("C# HTTP触发器函数正在处理请求。");
var response = req.CreateResponse(HttpStatusCode.OK);
response.Headers.Add("Content-Type", "text/plain; charset=utf-8");
response.WriteString("欢迎使用Azure函数！");
return response;
}
}
我已生成方法并尝试使用xunit进行测试，但我不知道如何模拟HttpRequestData、FunctionContext和HttpResponseData，这些都是抽象类，所以我应该为它们创建自定义类并继承这三个类，还是有其他方法可以测试它呢？
英文:
How can i test azure function this is an example generated function:
public static class Test
{
[Function("Test")]
public static HttpResponseData Run([HttpTrigger(AuthorizationLevel.Function, "get", "post")] HttpRequestData req,
FunctionContext executionContext)
{
var logger = executionContext.GetLogger("BLEbLE");
logger.LogInformation("C# HTTP trigger function processed a request.");
var response = req.CreateResponse(HttpStatusCode.OK);
response.Headers.Add("Content-Type", "text/plain; charset=utf-8");
response.WriteString("Welcome to Azure Functions!");
return response;
}
}
i have generated method and i tried testing it with xunit but i don't how to mock HttpRequestData , FunctionContext and HttpResponseData, these are abstract classes so should i create custom classes for them and inherit for this 3 or maybe there is other way to test it?
答案1
得分: 2
以下是您要翻译的代码部分：
//Arrange
var context = Substitute.For<FunctionContext>();
var request = Substitute.For<HttpRequestData>(context);
var response = Substitute.For<HttpResponseData>(context);
var serviceCollection = new ServiceCollection();
serviceCollection.AddSingleton(Options.Create(new WorkerOptions{Serializer = new JsonObjectSerializer()}));
var serviceProvider = serviceCollection.BuildServiceProvider();
context.InstanceServices.ReturnsForAnyArgs(serviceProvider);
request.Headers.ReturnsForAnyArgs(new HttpHeadersCollection());
response.Headers.ReturnsForAnyArgs(new HttpHeadersCollection());
response.Body.ReturnsForAnyArgs(new MemoryStream());
request.CreateResponse().ReturnsForAnyArgs(response);
var function = new Function();
//Act
var result = await function.Run(request);
result.Body.Position = 0;
var content = await JsonSerializer.DeserializeAsync<ErrorResponse>(result.Body);
//Assert
Assert.Equal(HttpStatusCode.OK, result.StatusCode);
Assert.Equal("Error", content?.Message);
希望这能帮助您。
英文:
Tried with the below code snippet:
//Arrange
var context = Substitute.For<FunctionContext>();
var request = Substitute.For<HttpRequestData>(context);
var response = Substitute.For<HttpResponseData>(context);
var serviceCollection = new ServiceCollection();
serviceCollection.AddSingleton(Options.Create(new WorkerOptions{Serializer = new JsonObjectSerializer()}));
var serviceProvider = serviceCollection.BuildServiceProvider();
context.InstanceServices.ReturnsForAnyArgs(serviceProvider);
request.Headers.ReturnsForAnyArgs(new HttpHeadersCollection());
response.Headers.ReturnsForAnyArgs(new HttpHeadersCollection());
response.Body.ReturnsForAnyArgs(new MemoryStream());
request.CreateResponse().ReturnsForAnyArgs(response);
var function = new Function();
//Act
var result = await function.Run(request);
result.Body.Position = 0;
var content = await JsonSerializer.DeserializeAsync<ErrorResponse>(result.Body);
//Assert
Assert.Equal(HttpStatusCode.OK, result.StatusCode);
Assert.Equal("Error", content?.Message);
There is a documentation on migrating the Azure Functions in-process to Isolated worker process but no information on implementing the Tests like Unit, Integration Tests.
Microsoft Azure Team has taken this implementation of complete test framework for the isolated-workers process as a priority item #281 and given the above code snippet for the temporary workaround.
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