Add POST /produce endpoint

internal/http/produce_test.go

@@ -0,0 +1,83 @@
+package http
+
+import (
+	"errors"
+	"io/ioutil"
+	"net/http"
+	"net/http/httptest"
+	"strings"
+	"testing"
+
+	"github.com/Rhymond/go-money"
+	"github.com/davidlick/supermarket-api/internal/produce"
+	"github.com/golang/mock/gomock"
+	"github.com/sirupsen/logrus"
+	"github.com/stretchr/testify/assert"
+)
+
+func TestServer_handleAddProduce(t *testing.T) {
+	tests := []struct {
+		test       string
+		body       string
+		expectFunc func(mockProduceSvc *MockProduceService)
+		assertFunc func(t *testing.T, w *httptest.ResponseRecorder)
+	}{
+		{
+			test: "it should successfully add valid produce",
+			body: `[{"code":"test","Name":"test","price":{"amount":101,"currency":"USD"}}]`,
+			expectFunc: func(mockProduceSvc *MockProduceService) {
+				mockProduceSvc.EXPECT().Add([]produce.Item{
+					{
+						Code:  "test",
+						Name:  "test",
+						Price: money.New(101, "USD"),
+					},
+				}).Return(nil)
+			},
+			assertFunc: func(t *testing.T, w *httptest.ResponseRecorder) {
+				assert.Equal(t, http.StatusCreated, w.Code)
+			},
+		},
+		{
+			test:       "it should respond bad request if body isn't an array of produce items",
+			body:       ``,
+			expectFunc: func(mockProduceSvc *MockProduceService) {},
+			assertFunc: func(t *testing.T, w *httptest.ResponseRecorder) {
+				assert.Equal(t, http.StatusBadRequest, w.Code)
+			},
+		},
+		{
+			test: "it should respond internal server error if adding to service fails",
+			body: `[{"code":"test","Name":"test","price":{"amount":101,"currency":"USD"}}]`,
+			expectFunc: func(mockProduceSvc *MockProduceService) {
+				mockProduceSvc.EXPECT().Add(gomock.Any()).Return(errors.New("test error"))
+			},
+			assertFunc: func(t *testing.T, w *httptest.ResponseRecorder) {
+				assert.Equal(t, http.StatusInternalServerError, w.Code)
+			},
+		},
+	}
+
+	for _, tc := range tests {
+		t.Run(tc.test, func(t *testing.T) {
+			ctrl := gomock.NewController(t)
+			defer ctrl.Finish()
+
+			r := httptest.NewRequest(http.MethodPost, "/v1/produce", strings.NewReader(tc.body))
+			w := httptest.NewRecorder()
+
+			noopLogger := logrus.New()
+			noopLogger.SetOutput(ioutil.Discard)
+
+			mockProduceSvc := NewMockProduceService(ctrl)
+			tc.expectFunc(mockProduceSvc)
+
+			s := NewServer(3000, noopLogger, "test", mockProduceSvc)
+
+			handler := http.HandlerFunc(s.handleAddProduce)
+			handler.ServeHTTP(w, r)
+
+			tc.assertFunc(t, w)
+		})
+	}
+}