模拟 API 时如何保证请求正确发生？

Question

假设我正在测试一个调用 Web 服务的功能，并且该服务被模拟为httptest.NewServerfunc TestSomeFeature(t *testing.T) {    server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {        w.WriteHeader(200)    }))    SomeFeature(server.URL, "foo")}func SomeFeature(host, a string) {    if a == "foo" {        http.Get(fmt.Sprintf("%v/foo", host))    }    if a == "bar" {        http.Get(fmt.Sprintf("%v/bar", host))    }}如何断言服务器是使用正确的 url 调用的，/foo如果使用错误的 url 调用或根本没有调用它，则测试失败？

Answer 1

你可以这样做：

func TestSomeFeature(t *testing.T) {

    called := false

    server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {

        // assert that strings.Contains(r.RequestURI, "/foo") is true

        called = true

        w.WriteHeader(200)

    }))

    SomeFeature(server.URL, "foo")

    // assert that called is true

}