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200
backend/internal/service/merchant_test.go
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200
backend/internal/service/merchant_test.go
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package service
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import (
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"context"
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"errors"
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"testing"
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"github.com/stretchr/testify/assert"
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"github.com/stretchr/testify/mock"
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"pay-bridge/internal/model"
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)
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// mockMerchantRepo 实现 merchantRepo interface
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type mockMerchantRepo struct {
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mock.Mock
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}
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func (m *mockMerchantRepo) Create(ctx context.Context, merchant *model.Merchant) error {
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return m.Called(ctx, merchant).Error(0)
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}
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func (m *mockMerchantRepo) GetByMerchantID(ctx context.Context, merchantID string) (*model.Merchant, error) {
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args := m.Called(ctx, merchantID)
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return args.Get(0).(*model.Merchant), args.Error(1)
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}
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func (m *mockMerchantRepo) GetByMerchantIDAndAppID(ctx context.Context, merchantID, appID string) (*model.Merchant, error) {
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args := m.Called(ctx, merchantID, appID)
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v, _ := args.Get(0).(*model.Merchant)
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return v, args.Error(1)
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}
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func (m *mockMerchantRepo) UpdateStatus(ctx context.Context, merchantID string, status model.MerchantStatus, updates map[string]any) error {
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return m.Called(ctx, merchantID, status, updates).Error(0)
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}
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func (m *mockMerchantRepo) List(ctx context.Context, status model.MerchantStatus, limit, offset int) ([]*model.Merchant, error) {
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args := m.Called(ctx, status, limit, offset)
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return args.Get(0).([]*model.Merchant), args.Error(1)
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}
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func (m *mockMerchantRepo) ListByAppID(ctx context.Context, appID string, status model.MerchantStatus, limit, offset int) ([]*model.Merchant, error) {
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args := m.Called(ctx, appID, status, limit, offset)
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return args.Get(0).([]*model.Merchant), args.Error(1)
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}
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func (m *mockMerchantRepo) ListAnomalous(ctx context.Context) ([]*model.Merchant, error) {
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args := m.Called(ctx)
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return args.Get(0).([]*model.Merchant), args.Error(1)
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}
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func (m *mockMerchantRepo) CreateApplication(ctx context.Context, app *model.MerchantApplication) error {
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return m.Called(ctx, app).Error(0)
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}
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func (m *mockMerchantRepo) GetLatestApplication(ctx context.Context, merchantID string) (*model.MerchantApplication, error) {
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args := m.Called(ctx, merchantID)
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v, _ := args.Get(0).(*model.MerchantApplication)
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return v, args.Error(1)
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}
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func (m *mockMerchantRepo) GetApprovedApplicationByChannel(ctx context.Context, merchantID, channelCode string) (*model.MerchantApplication, error) {
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args := m.Called(ctx, merchantID, channelCode)
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v, _ := args.Get(0).(*model.MerchantApplication)
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return v, args.Error(1)
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}
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func (m *mockMerchantRepo) UpdateApplication(ctx context.Context, applicationID string, updates map[string]any) error {
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return m.Called(ctx, applicationID, updates).Error(0)
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}
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// newTestMerchantService 创建注入了 mock repo 的 service（channelSvc 为 nil，仅测不涉及渠道的方法）
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func newTestMerchantService(repo merchantRepo) *MerchantService {
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return &MerchantService{merchantRepo: repo}
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}
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var ctx = context.Background()
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// --- GetMerchantForApp ---
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func TestGetMerchantForApp_OK(t *testing.T) {
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repo := new(mockMerchantRepo)
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want := &model.Merchant{MerchantID: "m001", AppID: "app1"}
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repo.On("GetByMerchantIDAndAppID", ctx, "m001", "app1").Return(want, nil)
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svc := newTestMerchantService(repo)
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got, err := svc.GetMerchantForApp(ctx, "app1", "m001")
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assert.NoError(t, err)
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assert.Equal(t, want, got)
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repo.AssertExpectations(t)
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}
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func TestGetMerchantForApp_NotFound(t *testing.T) {
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repo := new(mockMerchantRepo)
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repo.On("GetByMerchantIDAndAppID", ctx, "m001", "app1").Return((*model.Merchant)(nil), nil)
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svc := newTestMerchantService(repo)
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_, err := svc.GetMerchantForApp(ctx, "app1", "m001")
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assert.EqualError(t, err, "30001")
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}
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func TestGetMerchantForApp_WrongAppID(t *testing.T) {
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repo := new(mockMerchantRepo)
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// 商户存在但属于 other_app，GetByMerchantIDAndAppID 返回 nil
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repo.On("GetByMerchantIDAndAppID", ctx, "m001", "evil_app").Return((*model.Merchant)(nil), nil)
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svc := newTestMerchantService(repo)
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_, err := svc.GetMerchantForApp(ctx, "evil_app", "m001")
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assert.EqualError(t, err, "30001", "跨 appID 访问应返回 not found，而不是泄露商户信息")
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}
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func TestGetMerchantForApp_DBError(t *testing.T) {
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repo := new(mockMerchantRepo)
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repo.On("GetByMerchantIDAndAppID", ctx, "m001", "app1").Return((*model.Merchant)(nil), errors.New("db error"))
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svc := newTestMerchantService(repo)
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_, err := svc.GetMerchantForApp(ctx, "app1", "m001")
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assert.EqualError(t, err, "db error")
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}
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// --- CreateMerchantForApp ---
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func TestCreateMerchantForApp_SetsAppID(t *testing.T) {
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repo := new(mockMerchantRepo)
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repo.On("Create", ctx, mock.MatchedBy(func(m *model.Merchant) bool {
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return m.AppID == "app1" && m.MerchantID == "m001"
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})).Return(nil)
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svc := newTestMerchantService(repo)
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m := &model.Merchant{MerchantID: "m001"}
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err := svc.CreateMerchantForApp(ctx, "app1", m)
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assert.NoError(t, err)
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assert.Equal(t, "app1", m.AppID, "AppID 应被强制写入")
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repo.AssertExpectations(t)
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}
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// --- ListMerchantsForApp ---
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func TestListMerchantsForApp_OnlyReturnsOwnApp(t *testing.T) {
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repo := new(mockMerchantRepo)
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want := []*model.Merchant{{MerchantID: "m001", AppID: "app1"}}
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repo.On("ListByAppID", ctx, "app1", model.MerchantStatus(""), 20, 0).Return(want, nil)
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svc := newTestMerchantService(repo)
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got, err := svc.ListMerchantsForApp(ctx, "app1", "", 20, 0)
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assert.NoError(t, err)
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assert.Len(t, got, 1)
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repo.AssertExpectations(t)
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}
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// --- ApplyForApp ---
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func TestApplyForApp_MerchantNotBelongToApp(t *testing.T) {
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repo := new(mockMerchantRepo)
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repo.On("GetByMerchantIDAndAppID", ctx, "m001", "app1").Return((*model.Merchant)(nil), nil)
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svc := newTestMerchantService(repo)
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_, err := svc.ApplyForApp(ctx, "app1", "m001", "HEEPAY", nil)
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assert.EqualError(t, err, "30001", "不属于该 app 的商户不能提交进件")
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}
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// --- GetChannelMerchantID ---
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func TestGetChannelMerchantID_Approved(t *testing.T) {
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repo := new(mockMerchantRepo)
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app := &model.MerchantApplication{
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ChannelMerchantID: "ch_m_999",
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}
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repo.On("GetApprovedApplicationByChannel", ctx, "m001", "HEEPAY").Return(app, nil)
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svc := newTestMerchantService(repo)
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id, err := svc.GetChannelMerchantID(ctx, "m001", "HEEPAY")
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assert.NoError(t, err)
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assert.Equal(t, "ch_m_999", id)
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}
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func TestGetChannelMerchantID_NotApproved(t *testing.T) {
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repo := new(mockMerchantRepo)
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repo.On("GetApprovedApplicationByChannel", ctx, "m001", "ALIPAY").Return((*model.MerchantApplication)(nil), nil)
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svc := newTestMerchantService(repo)
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id, err := svc.GetChannelMerchantID(ctx, "m001", "ALIPAY")
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assert.NoError(t, err)
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assert.Empty(t, id, "未在该渠道进件时返回空字符串")
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}
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func TestGetChannelMerchantID_MultiChannel(t *testing.T) {
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repo := new(mockMerchantRepo)
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repo.On("GetApprovedApplicationByChannel", ctx, "m001", "HEEPAY").
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Return(&model.MerchantApplication{ChannelMerchantID: "hee_001"}, nil)
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repo.On("GetApprovedApplicationByChannel", ctx, "m001", "ALIPAY").
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Return(&model.MerchantApplication{ChannelMerchantID: "ali_001"}, nil)
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svc := newTestMerchantService(repo)
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heeID, _ := svc.GetChannelMerchantID(ctx, "m001", "HEEPAY")
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aliID, _ := svc.GetChannelMerchantID(ctx, "m001", "ALIPAY")
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assert.Equal(t, "hee_001", heeID, "不同渠道应返回各自的 channel_merchant_id")
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assert.Equal(t, "ali_001", aliID)
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}
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