[CLAUDE] Tests: Chunk E6 — 6 test 2-stage approval (PE) + IdentityFixture helper
Đóng "Tests Phase 3 mini cần UserManager DI helper" defer từ session 8.
IdentityFixture (Common/IdentityFixture.cs):
- Setup ServiceProvider với Identity stack đầy đủ:
- DbContext SQLite shared connection
- AddIdentityCore<User> + AddRoles<Role> + AddEntityFrameworkStores
- Single shared scope cho fixture lifetime → DbContext + UserManager đồng instance
- Helper CreateUserAsync(email, name, deptId, roles, canBypassReview)
- Note: dùng Role custom (không phải IdentityRole<Guid>) để match
ApplicationDbContext : IdentityDbContext<User, Role, Guid>
6 test PE 2-stage logic (Services/PeTwoStageApprovalTests.cs):
- NV_Review_Blocks_Phase_Transition (đóng bug anh Kiệt — chính xác)
- TPB_Confirm_After_NV_Review_Allows_Transition (happy path 2-stage)
- NV_With_BypassReview_Allows_Transition_With_IsBypassed_True (bypass NV)
- Admin_Skips_TwoStage_Logic_Entirely (admin bypass)
- Reject_Sets_RejectedFromPhase_And_Forces_DangSoanThao (smart reject)
- Resume_After_Reject_Jumps_Back_To_RejectedPhase (jump-back logic)
Stub FakeNotificationService — best effort path không cần verify.
Note: tests cho Contract + Budget 2-stage skip — logic identical PE, ROI thấp.
Pattern PeTwoStageApprovalTests reusable nếu cần test riêng tương lai.
Total: 54 Domain + 29 Infra (17 codegen + 6 PE WF Application + 6 PE 2-stage)
= **83 test pass** (+6 mới).
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
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