> ## Documentation Index
> Fetch the complete documentation index at: https://bruno-a6972042-docs-timeline-scripts.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# Assertions

Assertions allow you to declaratively write tests.

This should cover most of your testing needs. For complex tests, you can write test scripts.

## Getting Started with Assertions

To get started with basic tests using assertions, follow these steps:

1. **Open a Collection**: Navigate to the Collection containing the request you want to test.
2. **Select a Request**: Click on a request within the Collection.
3. **Go to the Assertions Tab**: Click on the Assertions tab to access the testing interface.
4. **Write Your Test**: You can now specify an **expression**, an **operator**, and the **value** to test against the API response.

<img src="https://mintcdn.com/bruno-a6972042-docs-timeline-scripts/AyYH5GBP7A99LBWR/v2/images/screenshots/get-started/bruno-basics/create_test/bru_test_assert.webp?fit=max&auto=format&n=AyYH5GBP7A99LBWR&q=85&s=4dae30564db4f75d78b1bbef82890637" alt="bru assertions" width="2684" height="1278" data-path="v2/images/screenshots/get-started/bruno-basics/create_test/bru_test_assert.webp" />

This method allows you to quickly test different conditions and verify that the API returns the expected results.

### Example:

* **Expression**: Verify the body response status (e.g., response.body.status).
* **Operator**: Choose the operator (e.g., equals, contains).
* **Value**: Provide the expected value (e.g., 200).

Bruno will then automatically run the test and give you the results, letting you know if the assertion passes or fails.