assert.expose(target, options);

Exposes assertions into another object, to allow for integration with a test framework.

For example, sinon-chai exposes Sinon's assertions on its own object.

<<< ../../../.vitepress/tests/docs/assertions/api/expose.test.js

This will give you spy.should.have.been.called and so on.

See sinon-chai documentation for usage examples.

The method accepts an optional options object with two options:

<dl> <dt>prefix</dt> <dd>Defaults to "assert", so <code>sinon.assert.called</code> becomes <code>target.assertCalled</code>. By passing a blank string, the exposed method will be `target.called`.</dd> <dt>includeFail</dt> <dd><code>true</code> by default, copies over the `fail` and `failException` properties.</dd> </dl>