"""Tests for __str__ methods of validation exceptions.""" from fastapi.exceptions import ( RequestValidationError, ResponseValidationError, WebSocketRequestValidationError, ) def test_request_validation_error_str_single_error(): """Test string representation of RequestValidationError with single error.""" errors = [{"type": "int_parsing", "loc": ["query", "id"], "msg": "Input should be a valid integer"}] exc = RequestValidationError(errors) result = str(exc) assert "1 validation error for request:" in result assert "{'type': 'int_parsing'" in result def test_request_validation_error_str_multiple_errors(): """Test string representation of RequestValidationError with multiple errors.""" errors = [ {"type": "int_parsing", "loc": ["query", "id"], "msg": "Input should be a valid integer"}, {"type": "missing", "loc": ["query", "name"], "msg": "Field required"}, ] exc = RequestValidationError(errors) result = str(exc) assert "2 validation errors for request:" in result assert "int_parsing" in result assert "missing" in result def test_websocket_request_validation_error_str_single_error(): """Test string representation of WebSocketRequestValidationError with single error.""" errors = [{"type": "int_parsing", "loc": ["query", "id"], "msg": "Input should be a valid integer"}] exc = WebSocketRequestValidationError(errors) result = str(exc) assert "1 validation error for WebSocket request:" in result assert "{'type': 'int_parsing'" in result def test_websocket_request_validation_error_str_multiple_errors(): """Test string representation of WebSocketRequestValidationError with multiple errors.""" errors = [ {"type": "int_parsing", "loc": ["query", "id"], "msg": "Input should be a valid integer"}, {"type": "missing", "loc": ["query", "name"], "msg": "Field required"}, ] exc = WebSocketRequestValidationError(errors) result = str(exc) assert "2 validation errors for WebSocket request:" in result assert "int_parsing" in result assert "missing" in result def test_response_validation_error_str_consistency(): """Test that ResponseValidationError has similar __str__ behavior.""" errors = [{"type": "int_parsing", "loc": ["response", "id"], "msg": "Input should be a valid integer"}] exc = ResponseValidationError(errors) result = str(exc) assert "1 validation error" in result assert "{'type': 'int_parsing'" in result