refactor: refactor python sdk (#28118)

Co-authored-by: autofix-ci[bot] <114827586+autofix-ci[bot]@users.noreply.github.com>

sdks/python-client/tests/test_exceptions.py

@@ -0,0 +1,79 @@
+"""Tests for custom exceptions."""
+
+import unittest
+from dify_client.exceptions import (
+    DifyClientError,
+    APIError,
+    AuthenticationError,
+    RateLimitError,
+    ValidationError,
+    NetworkError,
+    TimeoutError,
+    FileUploadError,
+    DatasetError,
+    WorkflowError,
+)
+
+
+class TestExceptions(unittest.TestCase):
+    """Test custom exception classes."""
+
+    def test_base_exception(self):
+        """Test base DifyClientError."""
+        error = DifyClientError("Test message", 500, {"error": "details"})
+        self.assertEqual(str(error), "Test message")
+        self.assertEqual(error.status_code, 500)
+        self.assertEqual(error.response, {"error": "details"})
+
+    def test_api_error(self):
+        """Test APIError."""
+        error = APIError("API failed", 400)
+        self.assertEqual(error.status_code, 400)
+        self.assertEqual(error.message, "API failed")
+
+    def test_authentication_error(self):
+        """Test AuthenticationError."""
+        error = AuthenticationError("Invalid API key")
+        self.assertEqual(str(error), "Invalid API key")
+
+    def test_rate_limit_error(self):
+        """Test RateLimitError."""
+        error = RateLimitError("Rate limited", retry_after=60)
+        self.assertEqual(error.retry_after, 60)
+
+        error_default = RateLimitError()
+        self.assertEqual(error_default.retry_after, None)
+
+    def test_validation_error(self):
+        """Test ValidationError."""
+        error = ValidationError("Invalid parameter")
+        self.assertEqual(str(error), "Invalid parameter")
+
+    def test_network_error(self):
+        """Test NetworkError."""
+        error = NetworkError("Connection failed")
+        self.assertEqual(str(error), "Connection failed")
+
+    def test_timeout_error(self):
+        """Test TimeoutError."""
+        error = TimeoutError("Request timed out")
+        self.assertEqual(str(error), "Request timed out")
+
+    def test_file_upload_error(self):
+        """Test FileUploadError."""
+        error = FileUploadError("Upload failed")
+        self.assertEqual(str(error), "Upload failed")
+
+    def test_dataset_error(self):
+        """Test DatasetError."""
+        error = DatasetError("Dataset operation failed")
+        self.assertEqual(str(error), "Dataset operation failed")
+
+    def test_workflow_error(self):
+        """Test WorkflowError."""
+        error = WorkflowError("Workflow failed")
+        self.assertEqual(str(error), "Workflow failed")
+
+
+if __name__ == "__main__":
+    unittest.main()