test: apply test conventions for wechat service

service/wechat/mock_wechat_message_manager.go

@@ -1,4 +1,4 @@
-// Code generated by mockery 2.7.4. DO NOT EDIT.
+// Code generated by mockery v2.14.0. DO NOT EDIT.
 
 package wechat
 
@@ -25,3 +25,18 @@ func (_m *mockWechatMessageManager) Send(msg *message.CustomerMessage) error {
 
 	return r0
 }
+
+type mockConstructorTestingTnewMockWechatMessageManager interface {
+	mock.TestingT
+	Cleanup(func())
+}
+
+// newMockWechatMessageManager creates a new instance of mockWechatMessageManager. It also registers a testing interface on the mock and a cleanup function to assert the mocks expectations.
+func newMockWechatMessageManager(t mockConstructorTestingTnewMockWechatMessageManager) *mockWechatMessageManager {
+	mock := &mockWechatMessageManager{}
+	mock.Mock.Test(t)
+
+	t.Cleanup(func() { mock.AssertExpectations(t) })
+
+	return mock
+}

service/wechat/wechat.go

@@ -27,6 +27,8 @@ type Config struct {
 }
 
 // wechatMessageManager abstracts go-wechat's message.Manager for writing unit tests
+//
+//go:generate mockery --name=wechatMessageManager --output=. --case=underscore --inpackage
 type wechatMessageManager interface {
 	Send(msg *message.CustomerMessage) error
 }

service/wechat/wechat_test.go

@@ -5,11 +5,25 @@ import (
 	"testing"
 
 	"github.com/pkg/errors"
+	"github.com/silenceper/wechat/v2/cache"
 	"github.com/silenceper/wechat/v2/officialaccount/message"
 	"github.com/stretchr/testify/require"
 )
 
-func TestAddReceivers(t *testing.T) {
+func TestWeChat_New(t *testing.T) {
+	t.Parallel()
+
+	assert := require.New(t)
+
+	cache := &cache.Memory{}
+	cfg := &Config{
+		Cache: cache,
+	}
+	service := New(cfg)
+	assert.NotNil(service)
+}
+
+func TestWeChat_AddReceivers(t *testing.T) {
 	t.Parallel()
 
 	assert := require.New(t)
@@ -23,7 +37,7 @@ func TestAddReceivers(t *testing.T) {
 	assert.Equal(svc.userIDs, userIDs)
 }
 
-func TestSend(t *testing.T) {
+func TestWeChat_Send(t *testing.T) {
 	t.Parallel()
 
 	assert := require.New(t)