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# Testing Support
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Flask provides comprehensive testing utilities including test clients for making requests and CLI runners for testing command-line interfaces.
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## Capabilities
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### Test Client
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```python { .api }
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class FlaskClient:
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    def get(self, *args, **kwargs) -> TestResponse: ...
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    def post(self, *args, **kwargs) -> TestResponse: ...
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    def put(self, *args, **kwargs) -> TestResponse: ...
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    def delete(self, *args, **kwargs) -> TestResponse: ...
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    def patch(self, *args, **kwargs) -> TestResponse: ...
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    def head(self, *args, **kwargs) -> TestResponse: ...
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    def options(self, *args, **kwargs) -> TestResponse: ...
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```
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### CLI Test Runner
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```python { .api }
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class FlaskCliRunner:
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    def invoke(self, cli, args=None, input=None, env=None, **extra): ...
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```
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## Usage Examples
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### Basic Testing
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```python
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import pytest
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from flask import Flask
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@pytest.fixture
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def app():
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    app = Flask(__name__)
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    app.config['TESTING'] = True
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    return app
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@pytest.fixture
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def client(app):
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    return app.test_client()
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def test_home(client):
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    response = client.get('/')
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    assert response.status_code == 200
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```