add inbox unit test

Author: hieven

src/inbox_test.go

@@ -6,6 +6,7 @@ import (
 
 	"github.com/stretchr/testify/mock"
 
+	"github.com/hieven/go-instagram/src/constants"
 	"github.com/hieven/go-instagram/src/protos"
 	requestMocks "github.com/hieven/go-instagram/src/utils/request/mocks"
 	. "github.com/onsi/ginkgo"
@@ -63,6 +64,46 @@ var _ = Describe("inbox", func() {
 				Expect(err).To(BeNil())
 				Expect(resp).NotTo(BeNil())
 			})
+
+			It("should call Get", func() {
+				mockRequestManager.AssertNumberOfCalls(GinkgoT(), "Get", 1)
+				mockRequestManager.AssertCalled(GinkgoT(), "Get", mock.Anything, constants.InboxEndpoint)
+			})
+		})
+
+		Context("when cursor is provded", func() {
+			BeforeEach(func() {
+				req.Cursor = "cursor"
+			})
+
+			It("should set query string", func() {
+				mockRequestManager.AssertCalled(GinkgoT(), "Get", mock.Anything, constants.InboxEndpoint+"?cursor="+req.Cursor)
+			})
 		})
+
+		tests := []struct {
+			desc        string
+			beforeFunc  func()
+			expectedErr error
+		}{
+			{
+				desc:        "when req is missing",
+				beforeFunc:  func() { req = nil },
+				expectedErr: ErrRequestRequired,
+			},
+		}
+
+		for _, test := range tests {
+			t := test
+			Context(t.desc, func() {
+				BeforeEach(t.beforeFunc)
+
+				It("should return error", func() {
+					Expect(resp).To(BeNil())
+					Expect(err).NotTo(BeNil())
+					Expect(err).To(Equal(t.expectedErr))
+				})
+			})
+		}
 	})
 })