feat(street): 审核 service 暴露主副图分组操作与详情分组视图

internal/service/review_street_group_test.go

@@ -0,0 +1,134 @@
+package service
+
+import (
+	"context"
+	"errors"
+	"testing"
+
+	"fashionapi/internal/dto"
+	"fashionapi/internal/model"
+	"fashionapi/internal/pkg/imgurl"
+	"fashionapi/internal/repository"
+)
+
+// fakeGroupRepo 只实现分组相关的仓储方法，其余由嵌入的接口兜底（测试中不会调到未实现的方法）。
+type fakeGroupRepo struct {
+	repository.ReviewRepository
+	images   []model.StreetSnapDraftImage
+	detail   *model.StreetSnapDraft
+	attachFn func(draftID, mainID uint32, imgIDs []uint32) error
+}
+
+func (f *fakeGroupRepo) StreetDraftDetail(_ context.Context, _ uint32) (*model.StreetSnapDraft, error) {
+	return f.detail, nil
+}
+
+func (f *fakeGroupRepo) StreetDraftImages(_ context.Context, _ uint32) ([]model.StreetSnapDraftImage, error) {
+	return f.images, nil
+}
+
+func (f *fakeGroupRepo) AttachStreetDraftImages(_ context.Context, draftID, mainID uint32, imgIDs []uint32) error {
+	if f.attachFn != nil {
+		return f.attachFn(draftID, mainID, imgIDs)
+	}
+	return nil
+}
+
+func (f *fakeGroupRepo) AttachPrevStreetDraftImage(_ context.Context, _ uint32, _ uint32) error {
+	if f.attachFn != nil {
+		return f.attachFn(0, 0, nil)
+	}
+	return nil
+}
+
+func (f *fakeGroupRepo) DetachStreetDraftImage(_ context.Context, _ uint32, _ uint32) error {
+	if f.attachFn != nil {
+		return f.attachFn(0, 0, nil)
+	}
+	return nil
+}
+
+var _ repository.ReviewRepository = (*fakeGroupRepo)(nil)
+
+func newGroupService(f *fakeGroupRepo) ReviewService {
+	return NewReviewService(f, nil, imgurl.New("", "", ""), nil)
+}
+
+// TestStreetGroupDetailExposesGrouping 详情必须输出可折叠分组：主图各成一组，副图归入主图。
+func TestStreetGroupDetailExposesGrouping(t *testing.T) {
+	repo := &fakeGroupRepo{
+		detail: &model.StreetSnapDraft{ID: 7, Title: "T", Year: 2026, City: "Beijing", Status: model.DraftStatusPending},
+		images: []model.StreetSnapDraftImage{
+			{ID: 1, Image: "main.jpg", Name: "main", SortOrder: 1, IsDetail: 0, ParentImageID: 0},
+			{ID: 2, Image: "det.jpg", Name: "det", SortOrder: 2, IsDetail: 1, ParentImageID: 1},
+			{ID: 3, Image: "solo.jpg", Name: "solo", SortOrder: 3, IsDetail: 0, ParentImageID: 0},
+		},
+	}
+	svc := newGroupService(repo)
+	v, err := svc.DraftDetail(context.Background(), dto.IngestKindStreet, 7)
+	if err != nil {
+		t.Fatalf("DraftDetail 失败: %v", err)
+	}
+	if len(v.Images) != 3 {
+		t.Fatalf("Images 应保留扁平 3 张，实际 %d", len(v.Images))
+	}
+	if len(v.Groups) != 2 {
+		t.Fatalf("Groups 应为 2 组，实际 %d", len(v.Groups))
+	}
+	if v.Groups[0].Image.ID != 1 || len(v.Groups[0].Details) != 1 {
+		t.Fatalf("第 0 组应为 1 张主图 + 1 副图，实际 main=%d details=%d", v.Groups[0].Image.ID, len(v.Groups[0].Details))
+	}
+	if v.Groups[0].Image.DetailCount != 1 {
+		t.Fatalf("主图 DetailCount 应为 1，实际 %d", v.Groups[0].Image.DetailCount)
+	}
+	if v.Groups[0].Details[0].ID != 2 {
+		t.Fatalf("副图应为 id=2，实际 %d", v.Groups[0].Details[0].ID)
+	}
+	if v.Groups[1].Image.ID != 3 {
+		t.Fatalf("第 1 组主图应为 id=3，实际 %d", v.Groups[1].Image.ID)
+	}
+}
+
+// TestStreetGroupAttachDelegates 并入必须透传参数到仓储。
+func TestStreetGroupAttachDelegates(t *testing.T) {
+	var got struct {
+		draftID uint32
+		mainID  uint32
+		imgIDs  []uint32
+	}
+	repo := &fakeGroupRepo{attachFn: func(draftID, mainID uint32, imgIDs []uint32) error {
+		got.draftID, got.mainID, got.imgIDs = draftID, mainID, imgIDs
+		return nil
+	}}
+	svc := newGroupService(repo)
+	if err := svc.AttachDraftImages(context.Background(), dto.IngestKindStreet, 7, 1, []uint32{2, 3}); err != nil {
+		t.Fatalf("AttachDraftImages 失败: %v", err)
+	}
+	if got.draftID != 7 || got.mainID != 1 || len(got.imgIDs) != 2 {
+		t.Fatalf("参数透传错误: draftID=%d mainID=%d imgIDs=%v", got.draftID, got.mainID, got.imgIDs)
+	}
+}
+
+// TestStreetGroupNonStreetRejected 走秀模块不允许主副图分组操作。
+func TestStreetGroupNonStreetRejected(t *testing.T) {
+	repo := &fakeGroupRepo{}
+	svc := newGroupService(repo)
+	if err := svc.AttachDraftImages(context.Background(), dto.IngestKindRunway, 7, 1, []uint32{2}); !errors.Is(err, ErrInvalidImageGroup) {
+		t.Fatalf("走秀并入应返回 ErrInvalidImageGroup，实际 %v", err)
+	}
+}
+
+// TestStreetGroupPreventCrossDraft 仓储拦截跨草稿主图后，service 翻成中文用户错误。
+func TestStreetGroupPreventCrossDraft(t *testing.T) {
+	repo := &fakeGroupRepo{attachFn: func(_, _ uint32, _ []uint32) error {
+		return repository.ErrInvalidImageGroup
+	}}
+	svc := newGroupService(repo)
+	err := svc.AttachDraftImages(context.Background(), dto.IngestKindStreet, 7, 1, []uint32{2, 3})
+	if err == nil {
+		t.Fatal("跨草稿应报错")
+	}
+	if err.Error() != "主图无效：它必须属于本草稿、未被删除，且自身是主图" {
+		t.Fatalf("错误文案不符: %q", err.Error())
+	}
+}