ember-qunit/dist/adapter.js

QUnit helpers for testing Ember.js applications

import TestAdapter from '@ember/test/adapter';
import * as QUnit from 'qunit';

function nonTestDoneCallback() {}
class QUnitAdapter extends TestAdapter {
  doneCallbacks = [];
  qunit = this.qunit || QUnit;
  asyncStart() {
    let currentTest = this.qunit.config.current;
    let done = currentTest && currentTest.assert ? currentTest.assert.async() : nonTestDoneCallback;
    this.doneCallbacks.push({
      test: currentTest,
      done
    });
  }
  asyncEnd() {
    let currentTest = this.qunit.config.current;
    if (this.doneCallbacks.length === 0) {
      throw new Error('Adapter asyncEnd called when no async was expected. Please create an issue in ember-qunit.');
    }
    let {
      test,
      done
    } = this.doneCallbacks.pop();

    // In future, we should explore fixing this at a different level, specifically
    // addressing the pairing of asyncStart/asyncEnd behavior in a more consistent way.
    if (test === currentTest) {
      done();
    }
  }
}

export { QUnitAdapter as default, nonTestDoneCallback };
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