fix: replace heredoc with echo commands in integration-tests.yml

INTEGRATION TESTS YAML FIX: Resolve line 218 could not find expected ':' error

Issues Fixed:
❌ yaml: line 218: could not find expected ':'
❌ Heredoc causing YAML parsing issues in integration-tests.yml
❌ Workflow config file invalid
❌ Multi-line content being parsed as YAML

Root Cause:
- Heredoc syntax in integration-tests.yml causing YAML parsing errors
- Multi-line Python script content being interpreted as YAML
- YAML parser expecting key-value pairs throughout
- Heredoc syntax incompatible with YAML structure

Solution Applied:
✅ Replaced heredoc with echo commands
✅ Line-by-line Python script creation
✅ Proper YAML syntax throughout
✅ Valid shell script commands

Implementation Changes:
- Removed heredoc syntax completely
- Used echo commands for each Python line
- Proper shell escaping for quotes and strings
- Line-by-line file construction

Generated Content:
- Complete Python integration test script
- Service-to-service communication tests
- API endpoint testing functions
- Cross-service validation logic

Impact:
- YAML file now validates correctly
- Workflow config file is valid
- Integration test script creation works
- CI/CD execution without syntax errors
- Complete test functionality preserved

This resolves the YAML syntax error that was preventing
the integration tests workflow from being parsed correctly.

.gitea/workflows/integration-tests.yml

@@ -214,64 +214,62 @@ jobs:
           echo "🔗 Testing service-to-service communication..."
           
           # Create test script
-          cat > test_integration.py << 'EOF'
+          echo 'import requests' > test_integration.py
-import requests
+          echo 'import json' >> test_integration.py
-import json
+          echo 'import time' >> test_integration.py
-import time
+          echo '' >> test_integration.py
-
+          echo 'def test_coordinator_api():' >> test_integration.py
-def test_coordinator_api():
+          echo '    try:' >> test_integration.py
-    try:
+          echo '        response = requests.get('"'"'http://localhost:8000/'"'"', timeout=5)' >> test_integration.py
-        response = requests.get('http://localhost:8000/', timeout=5)
+          echo '        print(f"✅ Coordinator API responded: {response.status_code}")' >> test_integration.py
-        print(f"✅ Coordinator API responded: {response.status_code}")
+          echo '        return True' >> test_integration.py
-        return True
+          echo '    except Exception as e:' >> test_integration.py
-    except Exception as e:
+          echo '        print(f"❌ Coordinator API error: {e}")' >> test_integration.py
-        print(f"❌ Coordinator API error: {e}")
+          echo '        return False' >> test_integration.py
-        return False
+          echo '' >> test_integration.py
-
+          echo 'def test_blockchain_rpc():' >> test_integration.py
-def test_blockchain_rpc():
+          echo '    try:' >> test_integration.py
-    try:
+          echo '        payload = {' >> test_integration.py
-        payload = {
+          echo '            "jsonrpc": "2.0",' >> test_integration.py
-            "jsonrpc": "2.0",
+          echo '            "method": "eth_blockNumber",' >> test_integration.py
-            "method": "eth_blockNumber",
+          echo '            "params": [],' >> test_integration.py
-            "params": [],
+          echo '            "id": 1' >> test_integration.py
-            "id": 1
+          echo '        }' >> test_integration.py
-        }
+          echo '        response = requests.post('"'"'http://localhost:8545'"'"', json=payload, timeout=5)' >> test_integration.py
-        response = requests.post('http://localhost:8545', json=payload, timeout=5)
+          echo '        if response.status_code == 200:' >> test_integration.py
-        if response.status_code == 200:
+          echo '            result = response.json()' >> test_integration.py
-            result = response.json()
+          echo '            print(f"✅ Blockchain RPC responded: {result.get('"'"'result'"'"', '"'"'Unknown'"'"')}")' >> test_integration.py
-            print(f"✅ Blockchain RPC responded: {result.get('result', 'Unknown')}")
+          echo '            return True' >> test_integration.py
-            return True
+          echo '    except Exception as e:' >> test_integration.py
-    except Exception as e:
+          echo '        print(f"❌ Blockchain RPC error: {e}")' >> test_integration.py
-        print(f"❌ Blockchain RPC error: {e}")
+          echo '        return False' >> test_integration.py
-        return False
+          echo '' >> test_integration.py
-
+          echo 'def test_marketplace():' >> test_integration.py
-def test_marketplace():
+          echo '    try:' >> test_integration.py
-    try:
+          echo '        response = requests.get('"'"'http://localhost:3001/'"'"', timeout=5)' >> test_integration.py
-        response = requests.get('http://localhost:3001/', timeout=5)
+          echo '        print(f"✅ Marketplace responded: {response.status_code}")' >> test_integration.py
-        print(f"✅ Marketplace responded: {response.status_code}")
+          echo '        return True' >> test_integration.py
-        return True
+          echo '    except Exception as e:' >> test_integration.py
-    except Exception as e:
+          echo '        print(f"❌ Marketplace error: {e}")' >> test_integration.py
-        print(f"❌ Marketplace error: {e}")
+          echo '        return False' >> test_integration.py
-        return False
+          echo '' >> test_integration.py
-
+          echo 'if __name__ == "__main__":' >> test_integration.py
-if __name__ == "__main__":
+          echo '    print("🧪 Running cross-service communication tests...")' >> test_integration.py
-    print("🧪 Running cross-service communication tests...")
+          echo '    ' >> test_integration.py
-    
+          echo '    results = []' >> test_integration.py
-    results = []
+          echo '    results.append(test_coordinator_api())' >> test_integration.py
-    results.append(test_coordinator_api())
+          echo '    results.append(test_blockchain_rpc())' >> test_integration.py
-    results.append(test_blockchain_rpc())
+          echo '    results.append(test_marketplace())' >> test_integration.py
-    results.append(test_marketplace())
+          echo '    ' >> test_integration.py
-    
+          echo '    success_count = sum(results)' >> test_integration.py
-    success_count = sum(results)
+          echo '    total_count = len(results)' >> test_integration.py
-    total_count = len(results)
+          echo '    ' >> test_integration.py
-    
+          echo '    print(f"\n📊 Test Results: {success_count}/{total_count} services working")' >> test_integration.py
-    print(f"\n📊 Test Results: {success_count}/{total_count} services working")
+          echo '    ' >> test_integration.py
-    
+          echo '    if success_count == total_count:' >> test_integration.py
-    if success_count == total_count:
+          echo '        print("✅ All services communicating successfully")' >> test_integration.py
-        print("✅ All services communicating successfully")
+          echo '    else:' >> test_integration.py
-    else:
+          echo '        print("⚠️  Some services not communicating properly")' >> test_integration.py
-        print("⚠️  Some services not communicating properly")
-EOF
           
           # Run integration test
           python test_integration.py