Tests added, see the documentation in the tests directory for details. Improved the socket code.

tools/pre-commit-hook

@@ -109,8 +109,25 @@ else
     echo -e "${GREEN}✓ Core module imports successful${NC}"
 fi
 
-# 4. Check for secrets or sensitive data
-echo -e "\n${YELLOW}4. Checking for potential secrets...${NC}"
+# 4. Run test suite
+echo -e "\n${YELLOW}4. Running test suite...${NC}"
+if command -v pytest >/dev/null 2>&1; then
+    # Run tests quietly, show summary at end
+    if pytest tests/ -q --tb=short 2>&1 | tail -20; then
+        echo -e "${GREEN}✓ All tests passed${NC}"
+    else
+        echo -e "${RED}✗ Test suite failed${NC}"
+        echo "Run: pytest tests/ -v  (to see details)"
+        VALIDATION_FAILED=1
+    fi
+else
+    echo -e "${YELLOW}⚠ pytest not installed - skipping tests${NC}"
+    echo "  Install with: pip install pytest"
+    echo "  Or full test suite: pip install -r tests/requirements.txt"
+fi
+
+# 5. Check for secrets or sensitive data
+echo -e "\n${YELLOW}5. Checking for potential secrets...${NC}"
 SECRETS_FOUND=0
 
 if [ -n "$STAGED_PYTHON_FILES" ]; then
@@ -144,6 +161,7 @@ else
     echo ""
     echo "Quick fixes:"
     echo "  • Python syntax: python3 tools/validate_syntax.py --fix"
+    echo "  • Run tests: pytest tests/ -v"
     echo "  • Review flagged files manually"
     echo "  • Re-run commit after fixes"
     exit 1