Initial Python SDK import

tests/test_errors.py

@@ -0,0 +1,52 @@
+"""Tests for Claude SDK error handling."""
+
+from claude_code_sdk import (
+    ClaudeSDKError,
+    CLIConnectionError,
+    CLIJSONDecodeError,
+    CLINotFoundError,
+    ProcessError,
+)
+
+
+class TestErrorTypes:
+    """Test error types and their properties."""
+
+    def test_base_error(self):
+        """Test base ClaudeSDKError."""
+        error = ClaudeSDKError("Something went wrong")
+        assert str(error) == "Something went wrong"
+        assert isinstance(error, Exception)
+
+    def test_cli_not_found_error(self):
+        """Test CLINotFoundError."""
+        error = CLINotFoundError("Claude Code not found")
+        assert isinstance(error, ClaudeSDKError)
+        assert "Claude Code not found" in str(error)
+
+    def test_connection_error(self):
+        """Test CLIConnectionError."""
+        error = CLIConnectionError("Failed to connect to CLI")
+        assert isinstance(error, ClaudeSDKError)
+        assert "Failed to connect to CLI" in str(error)
+
+    def test_process_error(self):
+        """Test ProcessError with exit code and stderr."""
+        error = ProcessError("Process failed", exit_code=1, stderr="Command not found")
+        assert error.exit_code == 1
+        assert error.stderr == "Command not found"
+        assert "Process failed" in str(error)
+        assert "exit code: 1" in str(error)
+        assert "Command not found" in str(error)
+
+    def test_json_decode_error(self):
+        """Test CLIJSONDecodeError."""
+        import json
+
+        try:
+            json.loads("{invalid json}")
+        except json.JSONDecodeError as e:
+            error = CLIJSONDecodeError("{invalid json}", e)
+            assert error.line == "{invalid json}"
+            assert error.original_error == e
+            assert "Failed to decode JSON" in str(error)