Widget tests for ProxyRegistrationScreen flows
epic-coordinator-proxy-registration-core-task-013 — Write flutter_test widget tests for ProxyRegistrationScreen covering: empty form validation display, template pre-fill populating all target fields, duplicate warning dialog render and dismiss/proceed actions, submit button disabled state during loading, and successful navigation to confirmation screen on service success.
Acceptance Criteria
Technical Requirements
Execution Context
Tier 7 - 84 tasks
Can start after Tier 6 completes
Implementation Notes
Create a test helper method pumpProxyRegistrationScreen(WidgetTester tester, {required MockProxyRegistrationFormCubit cubit}) that wraps the screen in MaterialApp + BlocProvider to reduce boilerplate across test cases. For template pre-fill, pass the template via the screen's constructor parameter and assert field values using tester.widget
Testing Requirements
All tests use pumpWidget with a provided MockProxyRegistrationFormCubit using BlocProvider.value(). Use tester.pump() after state changes for synchronous rendering. For navigation tests, inject a MockGoRouter or use a NavigatorObserver and verify pushNamed() is called with the confirmation route name and correct arguments. Group tests under descriptive group() blocks matching each scenario.
Use find.byType() and find.text() for assertions. Ensure no real network calls are made — all dependencies must be mocked.
The 2-hour window duplicate detection logic requires querying existing proxy records with compound key matching (mentor + date + activity type within time range). If the query is too broad it produces false positives that frustrate coordinators; if too narrow it misses genuine duplicates that corrupt Bufdir data.
Mitigation & Contingency
Mitigation: Define the duplicate detection window as a configurable parameter from the start. Prototype the Supabase query with representative data covering edge cases (midnight boundaries, different activity types same day, same activity type different mentors) before finalising the implementation.
Contingency: If the detection produces excessive false positives in UAT, allow coordinators to explicitly acknowledge and bypass the duplicate warning with a reason field, preserving safety while reducing friction.
If the proxy registration form does not clearly distinguish between the acting coordinator and the attributed mentor, coordinators may submit records attributing activities to themselves, causing inaccurate Bufdir reporting and potential funding issues.
Mitigation & Contingency
Mitigation: Conduct UAT with at least one real coordinator via TestFlight before release. Use distinct visual treatment (different card colours, explicit 'Registering on behalf of:' label) and require the confirmation screen to show both identities prominently.
Contingency: Add a mandatory confirmation checkbox on the confirmation screen that explicitly names the attributed mentor, preventing accidental self-attribution from slipping through.
Coordinators with multi-chapter access must select an active chapter context before the mentor list is filtered correctly. If chapter scope resolution fails or is bypassed, cross-org proxy registrations could occur, violating data isolation between chapters.
Mitigation & Contingency
Mitigation: Reuse the existing active-chapter-state and hierarchy-service components established by the org hierarchy feature. Add a guard that blocks entry to the proxy flow if no chapter context is active, prompting chapter selection first.
Contingency: If the chapter resolution service is unavailable, default to the most restrictive scope (no mentors visible) and surface a clear error message rather than showing an unfiltered mentor list.