some tests

tests/test_error.py

@@ -0,0 +1,41 @@
+# FILEPATH: /Users/alextu/Documents/GitHub/DocsGPT/tests/test_error.py
+
+import pytest
+from flask import Flask
+from application.error import bad_request, response_error
+
+
+@pytest.fixture
+def app():
+    app = Flask(__name__)
+    return app
+
+
+def test_bad_request_with_message(app):
+    with app.app_context():
+        message = "Invalid input"
+        response = bad_request(status_code=400, message=message)
+        assert response.status_code == 400
+        assert response.json == {'error': 'Bad Request', 'message': message}
+
+
+def test_bad_request_without_message(app):
+    with app.app_context():
+        response = bad_request(status_code=400)
+        assert response.status_code == 400
+        assert response.json == {'error': 'Bad Request'}
+
+
+def test_response_error_with_message(app):
+    with app.app_context():
+        message = "Something went wrong"
+        response = response_error(code_status=500, message=message)
+        assert response.status_code == 500
+        assert response.json == {'error': 'Internal Server Error', 'message': message}
+
+
+def test_response_error_without_message(app):
+    with app.app_context():
+        response = response_error(code_status=500)
+        assert response.status_code == 500
+        assert response.json == {'error': 'Internal Server Error'}