# Tests

This directory contains tests for the meta_api_grabber project.

## Running Tests

Install test dependencies:
```bash
uv sync --extra test
```

Run all tests:
```bash
uv run pytest
```

Run specific test file:
```bash
uv run pytest tests/test_field_schema_validation.py -v
```

Run with coverage:
```bash
uv run pytest --cov=meta_api_grabber
```

## Test Files

### `test_field_schema_validation.py`
Validates that all fields requested by the grab_* methods in `scheduled_grabber.py` exist in the database schema. This ensures:
- Field compatibility between Meta API and database
- Early detection of schema mismatches
- Consistency across all insight levels (account, campaign, adset, country)

**Why this test is important:** When new fields are added to the Meta API field lists, this test quickly alerts you if the corresponding database columns need to be added.

## Writing Tests

Use markers to categorize tests:
```python
@pytest.mark.unit
def test_something():
    pass

@pytest.mark.integration
async def test_database_connection():
    pass
```

Run only unit tests:
```bash
uv run pytest -m unit
```

Run everything except integration tests:
```bash
uv run pytest -m "not integration"
```