import { Object as EmberObject } from 'ember-runtime';

function K() {
  return this;
}

/**
 @module @ember/test
*/

/**
  The primary purpose of this class is to create hooks that can be implemented
  by an adapter for various test frameworks.

  @class TestAdapter
  @public
*/
export default EmberObject.extend({
  /**
    This callback will be called whenever an async operation is about to start.

    Override this to call your framework's methods that handle async
    operations.

    @public
    @method asyncStart
  */
  asyncStart: K,

  /**
    This callback will be called whenever an async operation has completed.

    @public
    @method asyncEnd
  */
  asyncEnd: K,

  /**
    Override this method with your testing framework's false assertion.
    This function is called whenever an exception occurs causing the testing
    promise to fail.

    QUnit example:

    ```javascript
      exception: function(error) {
        ok(false, error);
      };
    ```

    @public
    @method exception
    @param {String} error The exception to be raised.
  */
  exception(error) {
    throw error;
  },
});