The Go standard library offers a very convenient net/http/httptest package that allows you to spawn an HTTP server with only a few lines of code, which can be easily configured to handle HTTP/2 requests. Instead of mocking http.Client, mock the server it talks to. Here, http2.NextProtoTLS is a constant for the "h2" string we were looking for and tls.TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 is a cipher suite required by the HTTP/2 specification. Thus we came up with a fairly simple idea to mock http.Client: testutils/client_mock.goįunc TestExternalServiceClient_Call ( t * testing.
#Http client test software
The software tool is free and open source.
![http client test http client test](https://i.stack.imgur.com/2MEWQ.png)
This would add an extra dependency on the network state between our CI server and the target service.We don’t want to send all the requests we’re making in our unit tests to an actual server for several reasons: Mocking an external HTTP API in testsĪ common task in our tests is to verify the interaction with an HTTP API provided by a third party. So we’ll focus on these two parts, specifically on mocking HTTP requests to external services. While the invocation part is usually very specific to implementation and there is not much that could be generalized there, setup and teardown are tightly coupled and can often be split into small reusable blocks that mock external services, provide data fixtures, etc.
![http client test http client test](https://scalac.io/wp-content/uploads/http-protocol-Client-Server-Communication.jpg)
Besides providing the framework to run tests using the go tool, testing provides only one of these things–assertion–and leaves the rest up to its user. This is why we decided to stick with the minimalistic but decent testing package that Go provides as a part of its standard library.Įvery test, regardless of programming language, contains four major parts: setup, invocation, assertion, and teardown.
#Http client test code
Since no one likes maintaining code written by some unknown dude (do you?), we try to reduce the number of third-party packages we use to an absolute minimum and prefer writing or own tailor-made libraries. Just like tests, any dependency that we bring into our projects becomes a part of our code base. Tests are considered first-class citizens in our code base and are mandatory for any pull request that adds or changes functionality. Serving tens of thousands of requests per second, we can’t afford tiny oopsies caused by some pointer being null when we didn’t expect it or a good old side effect in a presumably clean function. assert CollectionAssert.Testing has always been a must at Adjust. act var actualTeamList = await service.GetDivision( "NFC", "North") NFLTeamsDataService service = new NFLTeamsDataService(httpClient, url) HttpClient httpClient = new HttpClient(mockHandler.Object) ItExpr.Is(r=>r.Method = HttpMethod.Get & r.RequestUri.ToString().StartsWith(url)),
![http client test http client test](https://miro.medium.com/max/1280/1*-TeNIVb9L_p5cmPZm-eFIQ.png)
HttpResponse.Content = new StringContent(json, Encoding.UTF8, "application/json") String url = " HttpResponseMessage httpResponse = new HttpResponseMessage() Var json = JsonConvert.SerializeObject(expectedTeamList)
![http client test http client test](https://miro.medium.com/max/1394/1*fPLxbzS5zdJlKrzxf4VVXQ.png)
Public class NFLTeamsDataService : IDisposable ,