Sharepoint-Toolbox/.planning/phases/06-global-site-selection/06-05-SUMMARY.md

phase, plan, subsystem, tags, requires, provides, affects, tech-stack, key-files, key-decisions, patterns-established, requirements-completed, duration, completed

phase	plan	subsystem	tags	requires	provides	affects	tech-stack	key-files	key-decisions	patterns-established	requirements-completed	duration	completed
06-global-site-selection	05	testing	xunit moq wpf mvvm weak-reference-messenger global-sites	phase provides 06-global-site-selection/06-01 GlobalSitesChangedMessage, FeatureViewModelBase.GlobalSites, OnGlobalSitesChanged virtual hook phase provides 06-global-site-selection/06-02 MainWindowViewModel.GlobalSelectedSites, GlobalSitesSelectedLabel phase provides 06-global-site-selection/06-04 Tab VM OnGlobalSitesChanged overrides with local override protection	GlobalSiteSelectionTests (10 unit tests covering full global site selection contract) Test coverage for message broadcast, base class reception, single/multi-site pre-fill Test coverage for local override, override reset, tenant switch clearing, label update		added patterns TestFeatureViewModel inner class pattern — expose protected property for assertion via public accessor WeakReferenceMessenger.Default.Reset() in test constructor — prevents cross-test message contamination Reflection to set private bool flag (_hasLocalSiteOverride) for testing guard conditions without requiring a dialog to open	created modified SharepointToolbox.Tests/ViewModels/GlobalSiteSelectionTests.cs	Test 8 (tenant switch) verifies override reset by sending new global sites after TenantSwitchedMessage — cleaner than asserting SiteUrl='' since OnSiteUrlChanged immediately re-applies global when SiteUrl is cleared and GlobalSites is non-empty Used reflection to set _hasLocalSiteOverride in PermissionsViewModel override test — avoids needing a real SitePickerDialog; acceptable for unit test scenario coverage MainWindowViewModel instantiated with real ProfileRepository (temp file path) and MsalClientFactory() — avoids needing to refactor VM for testability while still keeping test hermetic	Messenger reset pattern: WeakReferenceMessenger.Default.Reset() in constructor prevents leakage between WeakReferenceMessenger-heavy tests	SITE-01 SITE-02	3min	2026-04-07

Phase 06 Plan 05: GlobalSiteSelectionTests Summary

10 unit tests validating the full global site selection contract — message broadcast, base class GlobalSites property, single-site pre-fill, multi-site pre-populate, local override protection, override reset on clear, tenant switch clearing, and toolbar label count

Performance

• Duration: ~3 min
• Started: 2026-04-07T08:11:40Z
• Completed: 2026-04-07T08:14:30Z
• Tasks: 1
• Files modified: 1 created

Accomplishments

• All 10 tests pass covering both SITE-01 (global consumption) and SITE-02 (local override) requirements
• Total test suite grows from 134 to 144 passing tests (22 skipped unchanged)
• Tests exercise the full flow: MainWindowViewModel broadcasts, FeatureViewModelBase receives, tab VMs react, local override blocks global, tenant switch resets state
• No regressions in any pre-existing test

Task Commits

Each task was committed atomically:

1. Task 1: Create GlobalSiteSelectionTests with comprehensive test coverage - 80ef092 (test)

Files Created/Modified

• SharepointToolbox.Tests/ViewModels/GlobalSiteSelectionTests.cs — 10 xUnit Fact tests covering all critical paths in the global site selection flow

Decisions Made

• Test 8 revised to verify override-reset behavior indirectly: after TenantSwitchedMessage, sending new global sites verifies override was cleared (the simpler Assert.Equal("", SiteUrl) was wrong — OnSiteUrlChanged immediately re-applies GlobalSites when SiteUrl is cleared and GlobalSites is non-empty, which is correct designed behavior)
• Used System.Reflection to set _hasLocalSiteOverride on PermissionsViewModel for Test 7 — allows testing the guard without requiring a live dialog factory
• MainWindowViewModel instantiated via concrete ProfileRepository(tempFile) and new MsalClientFactory() — no refactoring needed, test remains hermetic

Deviations from Plan

Auto-fixed Issues

1. [Rule 1 - Bug] Corrected Test 8 assertion to match actual StorageViewModel behavior

• Found during: Task 1 (first test run)
• Issue: Initial Test 8 asserted vm.SiteUrl == string.Empty after tenant switch, but OnSiteUrlChanged immediately re-applies GlobalSites[0].Url when SiteUrl is cleared and GlobalSites is non-empty — this is correct, designed behavior (clearing = revert to global)
• Fix: Rewrote test to assert the real contract: after tenant switch, override flag is reset, so the next global sites message is applied to SiteUrl
• Files modified: SharepointToolbox.Tests/ViewModels/GlobalSiteSelectionTests.cs
• Verification: All 10 tests pass
• Committed in: 80ef092 (Task 1 commit)

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Total deviations: 1 auto-fixed (1 bug — incorrect test assertion) Impact on plan: Fix was necessary for test correctness; the assertion was wrong about the expected behavior, not the VM code.

Issues Encountered

• First test run had 9/10 passing; Test 8 failed because the assertion tested an intermediate state that the VM immediately transitions through (SiteUrl clears then immediately re-fills from GlobalSites). Fixed by testing the stable end state instead.

User Setup Required

None — no external service configuration required.

Self-Check: PASSED

File exists: SharepointToolbox.Tests/ViewModels/GlobalSiteSelectionTests.cs Commit 80ef092 exists in git log. All 10 tests pass: dotnet test --filter "GlobalSiteSelection" → 10 Passed, 0 Failed. No regressions: full suite → 144 Passed, 22 Skipped.

Next Phase Readiness

• Phase 6 is complete — all 5 plans executed, all requirements SITE-01 and SITE-02 covered
• The global site selection feature is fully implemented and tested end-to-end
• No blockers for Phase 7

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Phase: 06-global-site-selection Completed: 2026-04-07