add jsonhttptest tests

pkg/jsonhttp/jsonhttptest/jsonhttptest_test.go

+// Copyright 2020 The Swarm Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package jsonhttptest_test
+
+import (
+	"io/ioutil"
+	"net/http"
+	"net/http/httptest"
+	"strings"
+	"testing"
+
+	"github.com/ethersphere/bee/pkg/jsonhttp"
+	"github.com/ethersphere/bee/pkg/jsonhttp/jsonhttptest"
+)
+
+func TestResponse(t *testing.T) {
+	type response struct {
+		Message string `json:"message"`
+	}
+	message := "text"
+
+	wantMethod, wantPath, wantBody := http.MethodPatch, "/testing", "request body"
+	var gotMethod, gotPath, gotBody string
+	s := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		gotMethod = r.Method
+		gotPath = r.URL.Path
+		b, err := ioutil.ReadAll(r.Body)
+		if err != nil {
+			jsonhttp.InternalServerError(w, err)
+			return
+		}
+		gotBody = string(b)
+		jsonhttp.Created(w, response{
+			Message: message,
+		})
+	}))
+	defer s.Close()
+
+	c := s.Client()
+
+	t.Run("direct", func(t *testing.T) {
+		jsonhttptest.ResponseDirect(t, c, wantMethod, s.URL+wantPath, strings.NewReader(wantBody), http.StatusCreated, response{
+			Message: message,
+		})
+
+		if gotMethod != wantMethod {
+			t.Errorf("got method %s, want %s", gotMethod, wantMethod)
+		}
+		if gotPath != wantPath {
+			t.Errorf("got path %s, want %s", gotPath, wantPath)
+		}
+		if gotBody != wantBody {
+			t.Errorf("got body %s, want %s", gotBody, wantBody)
+		}
+	})
+
+	t.Run("unmarshal", func(t *testing.T) {
+		var r response
+		jsonhttptest.ResponseUnmarshal(t, c, wantMethod, s.URL+wantPath, strings.NewReader(wantBody), http.StatusCreated, &r)
+
+		if gotMethod != wantMethod {
+			t.Errorf("got method %s, want %s", gotMethod, wantMethod)
+		}
+		if gotPath != wantPath {
+			t.Errorf("got path %s, want %s", gotPath, wantPath)
+		}
+		if gotBody != wantBody {
+			t.Errorf("got body %s, want %s", gotBody, wantBody)
+		}
+		if r.Message != message {
+			t.Errorf("got messag %s, want %s", r.Message, message)
+		}
+	})
+}