fix: reorganize integration tests

[mpaya5]

Fixes https://linear.app/genlayer-labs/issue/DXP-684/separate-and-regroup-integration-tests
Fixes https://linear.app/genlayer-labs/issue/DXP-685/separate-and-group-infrastructure-tests

Summary

This PR reorganizes the integration test suite to follow Clean Architecture principles and improve maintainability. Tests are now properly grouped by functional domain using git mv to preserve file history.

Changes

📁 New Test Structure

Organized integration tests under tests/integration/contracts/ by domain:

tests/integration/contracts/
├── tokens/             # ERC20 token functionality (3 tests)
├── storage/            # Storage patterns (3 tests)  
├── oracle/             # Oracle implementations (1 test)
├── prediction_markets/ # Prediction market contracts (1 test)
├── analytics/          # Analytics and search (2 tests)
├── gaming/             # Gaming/AI assistants (1 test)
├── errors/             # Error handling (3 tests)
└── deployment/         # Multi-file deployments (1 test)

✅ Files Moved (using git mv)

• 15 test files moved from icontracts/tests/ to categorized folders
• 8 schema files moved to fixtures/schemas/
• 1 conftest.py moved to fixtures/
• All moves preserve git history for better traceability

🔧 Bug Fixes

1. Fixed circular imports in error tests:

   • Updated imports in test_error_llm.py and test_error_web.py to reference new locations

2. Added FastAPI skip conditions for RPC tests:

   • Tests now skip gracefully when FastAPI is not installed (CI environment)

📊 Impact

Metric	Before	After
Test Organization	Flat structure in icontracts/tests/	Domain-driven categories
Import Errors	2 files with wrong imports	Fixed ✅
CI Compatibility	3 tests failing without FastAPI	Conditional skip added ✅
File History	Would be lost with copy	Preserved with git mv ✅

Testing

Run integration tests with:

# All integration tests
gltest --contracts-dir ./icontracts/contracts tests/integration/contracts/ -svv

# Specific category
gltest --contracts-dir ./icontracts/contracts tests/integration/contracts/tokens/ -svv

Technical Details

• Git History: Used git mv to preserve file history and blame information
• Import Paths: Updated 3 files to use new import paths (fixtures.schemas instead of icontracts.schemas)
• Backwards Compatibility: Original location cleaned up, no duplicate files
• Python Packages: Added __init__.py files for proper Python package structure

Breaking Changes

None. Tests maintain their original functionality with only organizational changes.

Summary by CodeRabbit

• Tests

  • Standardized import paths across integration tests to improve consistency and reduce resolution issues.
  • Introduced shared test configuration to ensure fixtures and schemas are reliably discoverable.
  • Improved setup for contract-related error and storage test suites for clearer organization and stability.

• Chores

  • Minor restructuring of test utilities and paths to streamline maintenance and enhance developer experience during test runs.

[sonarqubecloud]

Quality Gate failed

Failed conditions
23.4% Coverage on New Code (required ≥ 80%)
C Reliability Rating on New Code (required ≥ A)

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