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7d95c737f0
Four defects found while tracing the adoption flow end to end after v1.10.4
reached a live HA pair.
B3/B4 (one root, one fix). Adoption took only the node whose row was clicked:
- adopting the BACKUP alone produced a VIP that apply always rejects, because
apply requires exactly one MASTER member;
- adopting the MASTER alone left the peer unmanaged, and adopting it
afterwards hit the VRID-collision guard with 409, so a pair could never be
completed from the panel;
- on a UNICAST instance the single-member render dropped the unicast block
entirely (render_keepalived_conf emits it only when peer_ips is non-empty),
so keepalived fell back to multicast on the adopted node while its peer
stayed unicast. They stop seeing each other and BOTH claim the VIP.
Adoption now resolves the whole instance via _collect_instance_participants,
keyed on (virtual_router_id, virtual address) - the same key keepalived uses to
group nodes. Each participant becomes a member with the role, priority and
interface its own file declares, and its own one-shot takeover hash, so the
per-node overwrite guard is unchanged. It refuses, naming the reason, when the
group has other than one MASTER, when advert_int differs across nodes, when a
declared unicast peer is not among the nodes being adopted, or when a node is
already in a live VIP - the one-active-VIP-per-agent rule that create/update
enforce via _validate_members_against_pool and adoption never called.
B1. The Apply Management "View Change" regex matched vip-(create|update|delete)
only, so an adopt version fell through to the generic HAProxy diff and rendered
the cluster's whole haproxy.cfg as removed. Display-only, but alarming. A test
now asserts every action _stage_vip_version can stage is in that alternation.
B2. Rejecting an adoption hid the node from the panel permanently:
vip_discoveries.adopted_vip_id is write-once, a VIP is only ever soft-deleted so
the column's ON DELETE SET NULL never fires, and the agent does not re-report a
file whose hash has not changed. Rather than clearing the column on each path,
adoptability is derived from whether the linked VIP is still active, which
self-heals reject, undo-reject and approved teardown alike.
The panel now lists one row per instance instead of per node, and the adopt
dialog names every node that will be taken over. Blockers are aggregated across
all of them, matching what the endpoint checks.
No schema change, no agent change, no API-shape break: /api/vip/discoveries
gains a derived field and /api/vip/adopt keeps its request body.
Backend suite: 1359 passed, 152 skipped. Frontend build clean (no new lint
warnings in VIPManagement.js).
HAProxy Management UI - Unit Tests
Overview
Comprehensive unit test suite for the HAProxy Management UI backend, covering critical business logic and ensuring reliability.
Test Structure
Backend Tests (backend/tests/)
test_soft_delete.py- Soft delete functionality and unique constraintstest_apply_process.py- Critical apply process that manages entity statestest_entity_sync.py- Entity-specific agent sync calculationstest_haproxy_config.py- HAProxy configuration generationtest_auth.py- Authentication and authorization
Frontend Tests (frontend/src/components/__tests__/)
EntitySyncStatus.test.js- Agent sync status componentApplyManagement.test.js- Apply management workflowSSLManagement.test.js- SSL certificate management
Running Tests
Backend Tests
# Install test dependencies
pip install -r backend/requirements-test.txt
# Run all tests
pytest
# Run specific test file
pytest backend/tests/test_apply_process.py
# Run with coverage
pytest --cov=backend --cov-report=html
# Run specific test
pytest backend/tests/test_soft_delete.py::TestSoftDeleteUniqueConstraints::test_backend_soft_delete_allows_name_reuse
Frontend Tests
# Run all frontend tests
npm test
# Run with coverage
npm run test:coverage
# Run in CI mode
npm run test:ci
Test Coverage Goals
- Backend: 70% minimum coverage
- Frontend: 70% minimum coverage
- Critical paths: 90%+ coverage (apply process, soft delete, entity sync)
Critical Test Areas
🔴 HIGH PRIORITY
- Apply Process - Prevents entity disappearance bugs
- Soft Delete Logic - Ensures proper unique constraint handling
- Entity Sync Calculations - Agent sync status accuracy
- Authentication/Authorization - Security validation
🟡 MEDIUM PRIORITY
- HAProxy Config Generation - Configuration correctness
- SSL Management - Certificate lifecycle
- Form Validations - Input validation
🟢 LOW PRIORITY
- UI Components - Visual behavior
- Utility Functions - Helper functions
Mock Strategy
Backend Mocking
- Database connections:
AsyncMockfor database operations - External APIs: Mock HTTP calls
- File operations: Mock file system access
Frontend Mocking
- API calls: Mock axios requests
- Ant Design components: Mock component behavior
- Context providers: Mock React contexts
Test Data
All tests use consistent mock data from conftest.py:
- Sample clusters, backends, frontends
- Mock users and authentication
- Config versions and SSL certificates
Debugging Tests
# Run with verbose output
pytest -v -s
# Run specific failing test
pytest backend/tests/test_apply_process.py::TestApplyProcess::test_apply_process_preserves_active_entities -v -s
# Drop into debugger on failure
pytest --pdb
Integration with CI/CD
Tests are designed to run in Azure DevOps pipeline:
# Example pipeline step
- script: |
pip install -r backend/requirements-test.txt
pytest --cov=backend --cov-report=xml
displayName: 'Run Backend Tests'
- script: |
npm ci
npm run test:ci
displayName: 'Run Frontend Tests'
Adding New Tests
- Follow naming convention:
test_*.pyfor backend,*.test.jsfor frontend - Use appropriate fixtures: Leverage existing mock data
- Test edge cases: Include error scenarios and boundary conditions
- Update coverage: Ensure new code maintains coverage thresholds
Common Issues
Backend
- Async tests: Use
@pytest.mark.asynciodecorator - Database mocking: Ensure proper mock setup for database operations
- Import paths: Use relative imports for testable modules
Frontend
- Component rendering: Wait for async operations with
waitFor - Event simulation: Use
fireEventfor user interactions - Mock cleanup: Clear mocks between tests with
jest.clearAllMocks()
Test Philosophy
These tests focus on:
- Business logic correctness over implementation details
- Critical path coverage over 100% coverage
- Regression prevention based on actual bugs encountered
- Maintainability with clear, readable test cases
The test suite is designed to catch the types of bugs we've actually encountered in production, particularly around the apply process and soft delete behavior.
Test deployment trigger - $(date)