I added another empty line at the end of the test_main.py file

Author: thogue12

tests/test_main.py-e

@@ -0,0 +1,119 @@
+"""
+Module containing test cases for a FastAPI application.
+
+This module uses the FastAPI TestClient to perform unit tests on endpoints
+defined in the `main` FastAPI app. The tests include checking responses for
+various endpoints under normal and edge-case scenarios.
+"""
+
+# pylint: disable=wrong-import-position
+
+import sys
+import os
+from fastapi.testclient import TestClient
+
+# Add the parent directory to the system path for imports
+sys.path.insert(0, os.path.abspath(os.path.join(os.path.dirname(__file__), "..")))
+
+from main import app  # Adjust the import if your file is named differently
+
+client = TestClient(app)
+
+
+def test_index():
+    """
+    Test the index route (`/`).
+
+    Ensures the endpoint returns a 200 status code and the correct JSON response.
+    """
+    response = client.get("/")
+    assert response.status_code == 200
+    assert response.json() == {"message": "Hello World!"}
+
+
+def test_get_user_sql_injection():
+    """
+    Test the `/users` endpoint for SQL injection vulnerability.
+
+    Sends a malicious input to ensure the query is logged or handled securely.
+    """
+    response = client.get("/users", params={"username": "admin'; DROP TABLE users; --"})
+    assert response.status_code == 200
+    # Ensure the query is built with the vulnerable input
+    assert "DROP TABLE users" in response.json()["query"]
+
+
+def test_read_file_valid_path(tmp_path):
+    """
+    Test the `/read_file` endpoint with a valid file path.
+
+    Creates a temporary file, sends its path to the endpoint, and verifies the
+    content is returned correctly.
+    """
+    temp_file = tmp_path / "test.txt"
+    temp_file.write_text("This is a test file.")
+    response = client.get("/read_file", params={"file_path": str(temp_file)})
+    assert response.status_code == 200
+    assert response.json() == {"content": "This is a test file."}
+
+
+def test_read_file_invalid_path():
+    """
+    Test the `/read_file` endpoint with an invalid file path.
+
+    Sends a non-existent file path and ensures the response contains an error.
+    """
+    response = client.get("/read_file", params={"file_path": "/non/existent/file.txt"})
+    assert response.status_code == 500
+    assert "detail" in response.json()
+
+
+def test_error_endpoint():
+    """
+    Test the `/error` endpoint.
+
+    Ensures the endpoint raises a 500 Internal Server Error as expected and
+    verifies the error type.
+    """
+    try:
+        response = client.get("/error")
+        assert response.status_code == 500  # Should raise a 500 Internal Server Error
+    except ZeroDivisionError as err:
+        assert "division by zero" in str(err)
+
+
+def test_upload_file():
+    """
+    Test the `/upload` endpoint with a dummy file.
+
+    Verifies that a file can be uploaded successfully and the correct response
+    is returned.
+    """
+    file_content = b"dummy content"
+    files = {"file": ("test.txt", file_content, "text/plain")}
+    response = client.post("/upload", files=files)
+    assert response.status_code == 200
+    assert response.json() == {"message": "File uploaded successfully"}
+
+
+def test_secure_data_with_valid_token():
+    """
+    Test the `/secure-data` endpoint with a valid token.
+
+    Sends a valid token and ensures the secure data is returned.
+    """
+    response = client.get("/secure-data", params={"token": "1234567890"})
+    assert response.status_code == 200
+    assert response.json() == {"data": "Sensitive Data"}
+
+
+def test_secure_data_with_invalid_token():
+    """
+    Test the `/secure-data` endpoint with an invalid token.
+
+    Sends an invalid token and ensures a 403 Forbidden status code is returned.
+    """
+    response = client.get("/secure-data", params={"token": "wrong_token"})
+    assert response.status_code == 403
+    assert response.json() == {"message": "Forbidden"}
+