initial commit for bookish-server and local environment

2020-05-26 00:30:20 -04:00
parent d634e9d00f
commit 2bc790c87b
48 changed files with 15860 additions and 1 deletions
@@ -0,0 +1,157 @@
+package inventory
+
+import (
+	"errors"
+	"testing"
+
+	"github.com/golang/mock/gomock"
+	"github.com/stretchr/testify/assert"
+)
+
+func TestInventory_IsBookAvailable(t *testing.T) {
+	testCases := []struct {
+		TestName  string
+		Title     string
+		RenterId  int
+		Available bool
+		Error     error
+	}{
+		{
+			TestName:  "success-available",
+			Title:     "Book #1",
+			Available: true,
+		},
+		{
+			TestName:  "success-unavailable",
+			Title:     "Book #2",
+			Available: false,
+		},
+		{
+			TestName: "failure",
+			Title:    "Book #3",
+			Error:    errors.New("test error"),
+		},
+	}
+
+	for _, tc := range testCases {
+		t.Run(tc.TestName, func(t *testing.T) {
+			ctrl := gomock.NewController(t)
+			defer ctrl.Finish()
+
+			mockStorage := NewMockStorage(ctrl)
+			mockStorage.EXPECT().IsBookAvailable(tc.Title).Return(tc.Available, tc.Error)
+
+			service := NewService(mockStorage)
+			available, err := service.IsBookAvailable(tc.Title)
+
+			assert.Equal(t, tc.Available, available)
+			assert.Equal(t, tc.Error, err)
+		})
+	}
+}
+
+func TestInventory_CheckoutBook(t *testing.T) {
+	testCases := []struct {
+		TestName        string
+		RenterId        int
+		Title           string
+		Available       bool
+		AvailableError  error
+		CheckedOut      bool
+		CheckedOutError error
+		Error           error
+	}{
+		{
+			TestName:  "success",
+			RenterId:  1,
+			Title:     "Book #1",
+			Available: true,
+		},
+		{
+			TestName:  "unavailable",
+			RenterId:  2,
+			Title:     "Book #2",
+			Available: false,
+			Error:     ErrUnavailableBook,
+		},
+		{
+			TestName:       "availability_error",
+			RenterId:       3,
+			Title:          "Book #3",
+			AvailableError: errors.New("test error"),
+			Error:          errors.New("test error"),
+		},
+		{
+			TestName:   "checked-out",
+			RenterId:   4,
+			Title:      "Book #4",
+			Available:  true,
+			CheckedOut: true,
+			Error:      ErrUnavailableBook,
+		},
+		{
+			TestName:  "failure",
+			RenterId:  4,
+			Title:     "Book #4",
+			Available: true,
+			Error:     errors.New("test error"),
+		},
+	}
+
+	for _, tc := range testCases {
+		t.Run(tc.TestName, func(t *testing.T) {
+			ctrl := gomock.NewController(t)
+			defer ctrl.Finish()
+
+			mockStorage := NewMockStorage(ctrl)
+			mockStorage.EXPECT().IsBookAvailable(tc.Title).Return(tc.Available, tc.AvailableError)
+			if tc.Available && tc.AvailableError == nil {
+				mockStorage.EXPECT().RenterAlreadyCheckedOut(tc.RenterId, tc.Title).Return(tc.CheckedOut, tc.CheckedOutError)
+				if !tc.CheckedOut && tc.CheckedOutError == nil {
+					mockStorage.EXPECT().CheckoutBook(tc.RenterId, tc.Title).Return(tc.Error)
+				}
+			}
+
+			service := NewService(mockStorage)
+			err := service.CheckoutBook(tc.RenterId, tc.Title)
+
+			assert.Equal(t, tc.Error, err)
+		})
+	}
+}
+
+func TestInventory_ReturnBook(t *testing.T) {
+	testCases := []struct {
+		TestName string
+		RenterId int
+		Title    string
+		Error    error
+	}{
+		{
+			TestName: "success",
+			RenterId: 1,
+			Title:    "Book #1",
+		},
+		{
+			TestName: "failure",
+			RenterId: 2,
+			Title:    "Book #2",
+			Error:    errors.New("test error"),
+		},
+	}
+
+	for _, tc := range testCases {
+		t.Run(tc.TestName, func(t *testing.T) {
+			ctrl := gomock.NewController(t)
+			defer ctrl.Finish()
+
+			mockStorage := NewMockStorage(ctrl)
+			mockStorage.EXPECT().ReturnBook(tc.RenterId, tc.Title).Return(tc.Error)
+
+			service := NewService(mockStorage)
+			err := service.ReturnBook(tc.RenterId, tc.Title)
+
+			assert.Equal(t, tc.Error, err)
+		})
+	}
+}