Contents

import { assignPolyfill, assign } from '..';
import { moduleFor, AbstractTestCase as TestCase } from 'internal-test-helpers';

class AssignTests extends TestCase {
  ['@test merging objects'](assert) {
    let trgt = { a: 1 };
    let src1 = { b: 2 };
    let src2 = { c: 3 };
    this.assign(trgt, src1, src2);

    assert.deepEqual(
      trgt,
      { a: 1, b: 2, c: 3 },
      'assign copies values from one or more source objects to a target object'
    );
    assert.deepEqual(src1, { b: 2 }, 'assign does not change source object 1');
    assert.deepEqual(src2, { c: 3 }, 'assign does not change source object 2');
  }

  ['@test merging objects with same property'](assert) {
    let trgt = { a: 1, b: 1 };
    let src1 = { a: 2, b: 2 };
    let src2 = { a: 3 };
    this.assign(trgt, src1, src2);

    assert.deepEqual(
      trgt,
      { a: 3, b: 2 },
      'properties are overwritten by other objects that have the same properties later in the parameters order'
    );
  }

  ['@test null'](assert) {
    let trgt = { a: 1 };
    this.assign(trgt, null);

    assert.deepEqual(trgt, { a: 1 }, 'null as a source parameter is ignored');
  }

  ['@test undefined'](assert) {
    let trgt = { a: 1 };
    this.assign(trgt, null);

    assert.deepEqual(trgt, { a: 1 }, 'undefined as a source parameter is ignored');
  }
}

moduleFor(
  'Ember.assign (polyfill)',
  class extends AssignTests {
    assign() {
      return assignPolyfill(...arguments);
    }
  }
);

moduleFor(
  'Ember.assign (maybe not-polyfill ;) )',
  class extends AssignTests {
    assign() {
      return assign(...arguments);
    }
  }
);

Version data entries

3 entries across 3 versions & 1 rubygems

Version	Path
discourse-ember-source-3.6.0.0	dist/es/@ember/polyfills/tests/assign_test.js
discourse-ember-source-3.5.1.1	dist/es/@ember/polyfills/tests/assign_test.js
discourse-ember-source-3.5.1.0	dist/dist/es/@ember/polyfills/tests/assign_test.js