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test: add serialisation stability tests for freeze_appeal_channel field#2253

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Baskarayelu merged 1 commit into
QuickLendX:mainfrom
owohdora-stack:test-for-freeze-appeal-1960
Jul 27, 2026
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test: add serialisation stability tests for freeze_appeal_channel field#2253
Baskarayelu merged 1 commit into
QuickLendX:mainfrom
owohdora-stack:test-for-freeze-appeal-1960

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Closes #1960

📝 Description

Add serialisation-stability tests for the freeze_appeal_channel field in the InvoiceFrozen event to lock down the contract's event schema and prevent silent regressions.

🎯 Type of Change

  • Bug fix
  • New feature
  • Breaking change
  • Documentation update
  • Refactoring
  • Performance improvement
  • Security enhancement
  • Other: test coverage

🔧 Changes Made

Files Modified

  • quicklendx-contracts/src/lib.rs — registered new test module

New Files Added

  • quicklendx-contracts/src/test_freeze_appeal_channel.rs — 15 tests (12 unit + 3 proptest)

Key Changes

  • Schema lock: event data-map must always contain exactly 5 field names; any rename/add/remove breaks the build
  • Administrative variant coverage: BusinessFreezeReason::Administrative (alias for AdminAction) now tested for correct channel and label
  • FreezeInfo XDR roundtrip: every BusinessFreezeReason variant survives serialisation/deserialisation
  • Channel immutability: freeze → unfreeze → refreeze and double-freeze both preserve freeze_appeal_channel = "docs/APPEALS.md"
  • Negative test: freeze_investor must not emit InvoiceFrozen (business-only event)
  • Proptests: channel invariant, label snake_case invariant, FreezeInfo roundtrip invariant across all 9 reason variants

🧪 Testing

  • Unit tests pass
  • Integration tests pass
  • No breaking changes introduced
  • Edge cases tested

Test Coverage

Test Layer What it locks
event_data_map_contains_exactly_expected_fields schema Exactly 5 field names
event_fields_are_all_non_null schema All fields present, channel non-empty
event_identity_fields_match_inputs integration invoice_id, frozen_by, timestamp match
channel_present_for_administrative_variant unit Administrative variant channel + label
administrative_and_admin_action_share_label unit Label alias stability
channel_consistent_across_freeze_unfreeze_refreeze integration Channel survives cycles
channel_correct_on_double_freeze integration Channel correct on re-freeze
freeze_info_xdr_roundtrip_preserves_reason unit FreezeInfo XDR roundtrip
freeze_info_roundtrip_all_reasons unit All 9 variants roundtrip
freeze_info_different_reasons_serialize_differently unit Discriminant stored
investor_freeze_does_not_emit_invoice_frozen negative No event leakage
administrative_variant_emits_correct_label_and_channel integration Full Administrative flow
prop_channel_always_appeals_doc proptest Channel invariant
prop_label_is_snake_case proptest Label format invariant
prop_freeze_info_roundtrip proptest XDR roundtrip invariant

📋 Contract-Specific Checks

  • Events properly emitted
  • Contract functions tested
  • Error handling implemented
  • Access control verified

🔗 Related Issues

Closes #1960

📋 Additional Notes

The codebase currently has pre-existing compilation errors from recent merge conflicts (duplicate types, signature changes). This PR introduces zero new errors — the new test file compiles cleanly. The maintainer will resolve the merge conflicts separately.

🧪 How to Test

  1. cargo test -p quicklendx-contracts test_freeze_appeal_channel (once merge conflicts are resolved)
  2. Verify all 15 tests pass
  3. Intentionally rename freeze_appeal_channel in events.rs and confirm event_data_map_contains_exactly_expected_fields fails
  4. Intentionally change the channel value and confirm proptest fails

Closes QuickLendX#1960

Lock down the InvoiceFrozen event schema and the freeze_appeal_channel
value so that accidental renames, deletions, or silent type changes are
caught by the test suite.

New tests in test_freeze_appeal_channel.rs:
- Event data-map schema lock (exactly 5 field names, all present/non-null)
- Administrative variant channel + label coverage
- FreezeInfo XDR serialisation round-trip for all 9 reason variants
- Channel consistency across freeze/unfreeze/refreeze cycles
- Negative: freeze_investor must not emit InvoiceFrozen
- Proptest: channel invariant, label snake_case, FreezeInfo roundtrip
@drips-wave

drips-wave Bot commented Jul 26, 2026

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@owohdora-stack Great news! 🎉 Based on an automated assessment of this PR, the linked Wave issue(s) no longer count against your application limits.

You can now already apply to more issues while waiting for a review of this PR. Keep up the great work! 🚀

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@Baskarayelu
Baskarayelu merged commit 4dcd00e into QuickLendX:main Jul 27, 2026
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Add tests for the freeze-appeal channel field

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