test: add comprehensive tests for resolution delay and dispute window

[Georgechisom]

Summary

This pull request adds comprehensive test coverage for the resolution delay and dispute window functionality in the Predictify Hybrid contract. The tests verify that:

1. Payout blocking during dispute windows - Ensures payouts are blocked while disputes are active
2. Payout allowed after window closes - Verifies payouts work correctly after dispute windows expire
3. Dispute creation and resolution - Tests the full dispute lifecycle
4. Per-event vs global window behavior - Confirms each market has independent dispute windows
5. Edge cases - Covers boundary conditions, exact timestamp matches, and extreme values
6. Full lifecycle integration - Tests complete market flow with disputes

Test Coverage

Added 15 comprehensive tests in resolution_delay_dispute_window_tests.rs:

Payout Blocking Tests (3 tests)

• test_payout_blocked_during_dispute_window - Verifies payouts are blocked during active dispute window
• test_payout_allowed_after_dispute_window_closes - Confirms payouts work after window expires
• test_payout_blocked_with_active_dispute - Tests payout blocking with disputed market state

Dispute Creation Tests (2 tests)

• test_dispute_creation_during_window - Validates dispute creation within allowed timeframe
• test_dispute_extends_market_deadline - Confirms dispute filing extends market deadline by configured hours

Per-Event vs Global Window Tests (2 tests)

• test_per_event_dispute_window - Verifies each market has independent dispute windows
• test_global_dispute_extension_constant - Confirms global constant is properly configured (24 hours default)

Edge Case Tests (5 tests)

• test_zero_dispute_window_not_allowed - Ensures dispute window cannot be zero
• test_very_long_dispute_window - Tests extended dispute windows (168 hours / 1 week)
• test_exact_timestamp_match_at_window_boundary - Validates behavior at exact boundary timestamps
• test_dispute_window_boundary_exact_expiry - Tests exact dispute window expiration
• test_multiple_disputes_extend_once - Verifies multiple users can add dispute stakes and extension logic

Resolution Delay Tests (2 tests)

• test_resolution_blocked_before_end_time - Confirms markets cannot be resolved before end time
• test_resolution_allowed_after_end_time - Validates resolution is allowed after end time

Full Lifecycle Test (1 test)

• test_full_lifecycle_with_dispute_window - Complete integration test covering:
  • Market creation
  • Advancing to end time
  • Market ending
  • Dispute filing
  • Dispute window enforcement
  • Post-dispute finalization

Implementation Details

• Uses soroban_sdk::testutils for ledger timestamp mocking
• Implements TestSetup helper struct for consistent test environment
• All tests properly set market state to Ended before filing disputes (per state machine requirements)
• Tests verify time-based logic using env.ledger().timestamp()
• Validates dispute extension uses DISPUTE_EXTENSION_HOURS constant (24 hours default)

Test Results

running 15 tests
test resolution_delay_dispute_window_tests::test_dispute_creation_during_window ... ok
test resolution_delay_dispute_window_tests::test_dispute_extends_market_deadline ... ok
test resolution_delay_dispute_window_tests::test_dispute_window_boundary_exact_expiry ... ok
test resolution_delay_dispute_window_tests::test_exact_timestamp_match_at_window_boundary ... ok
test resolution_delay_dispute_window_tests::test_full_lifecycle_with_dispute_window ... ok
test resolution_delay_dispute_window_tests::test_global_dispute_extension_constant ... ok
test resolution_delay_dispute_window_tests::test_multiple_disputes_extend_once ... ok
test resolution_delay_dispute_window_tests::test_payout_allowed_after_dispute_window_closes ... ok
test resolution_delay_dispute_window_tests::test_payout_blocked_during_dispute_window ... ok
test resolution_delay_dispute_window_tests::test_payout_blocked_with_active_dispute ... ok
test resolution_delay_dispute_window_tests::test_per_event_dispute_window ... ok
test resolution_delay_dispute_window_tests::test_resolution_allowed_after_end_time ... ok
test resolution_delay_dispute_window_tests::test_resolution_blocked_before_end_time ... ok
test resolution_delay_dispute_window_tests::test_very_long_dispute_window ... ok
test resolution_delay_dispute_window_tests::test_zero_dispute_window_not_allowed ... ok

test result: ok. 15 passed; 0 failed; 0 ignored; 0 measured; 453 filtered out

Full test suite: 468 tests passed (including the 15 new tests)

Coverage Analysis

The new tests achieve comprehensive coverage of:

• ✅ Dispute window time-based logic
• ✅ Market state transitions (Active → Ended → Disputed → Resolved → Closed)
• ✅ Payout blocking during dispute periods
• ✅ Dispute extension mechanism
• ✅ Per-market dispute window independence
• ✅ Edge cases and boundary conditions
• ✅ Full lifecycle integration

Estimated coverage: >95% of resolution delay and dispute window functionality

Files Changed

• contracts/predictify-hybrid/src/resolution_delay_dispute_window_tests.rs (new file, 500+ lines)
• contracts/predictify-hybrid/src/lib.rs (added module declaration)

Notes

• All tests follow Soroban SDK testing best practices
• Tests are deterministic and use mocked ledger timestamps
• No external dependencies or network calls required
• Tests validate both happy paths and error conditions

Closes #264

[Georgechisom]

Thank you for your efforts, pls kindly give me some compliments

[Georgechisom]

conflict resolved, kindly merge