http-client-runtime-impl-test.go

package runtime

import (
        "context"
        "io/ioutil"
        "net/http"
        "net/http/httptest"
        "net/url"
        "testing"
)

func TestHTTP(t *testing.T) {
        srv := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
                reqBody, err := ioutil.ReadAll(r.Body)
                if err != nil {
                        t.Error(err)
                }

                if want, got := http.MethodPost, r.Method; want != got {
                        t.Errorf("wanted method: %s, got %s", want, got)
                }

                if want, got := "request", string(reqBody); want != got {
                        t.Errorf("wanted req: %s, got %s", want, got)
                }

                w.Write([]byte("response"))
        }))
        defer srv.Close()

        u, err := url.Parse(srv.URL)
        if err != nil {
                t.Fatal(err)
        }

        h := &HTTP{
                URL:        u,
                httpClient: srv.Client(),
        }

        res, err := h.Execute(context.Background(), Request{Payload: []byte("request")})
        if err != nil {
                t.Fatal(err)
        }

        if want, got := "response", string(res.Payload); want != got {
                t.Fatalf("wanted response: %s, got %s", want, got)
        }
}