/**
 * @license
 * Copyright (C) 2020 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

import '../test/common-test-setup-karma';
import {
  hasOwnProperty,
  areSetsEqual,
  containsAll,
  intersection,
} from './common-util';

suite('common-util tests', () => {
  suite('hasOwnProperty', () => {
    test('object with the default prototype', () => {
      const obj = {
        abc: 3,
        'name with spaces': 5,
      };
      assert.isTrue(hasOwnProperty(obj, 'abc'));
      assert.isTrue(hasOwnProperty(obj, 'name with spaces'));
      assert.isFalse(hasOwnProperty(obj, 'def'));
    });
    test('object prototype has overridden hasOwnProperty', () => {
      class MyObject {
        abc = 123;

        hasOwnProperty(_key: PropertyKey) {
          return true;
        }
      }

      const obj = new MyObject();
      assert.isTrue(hasOwnProperty(obj, 'abc'));
      assert.isFalse(hasOwnProperty(obj, 'def'));
    });
  });

  test('areSetsEqual', () => {
    assert.isTrue(areSetsEqual(new Set(), new Set()));
    assert.isTrue(areSetsEqual(new Set([1]), new Set([1])));
    assert.isTrue(areSetsEqual(new Set([1, 1, 1, 1]), new Set([1])));
    assert.isTrue(areSetsEqual(new Set([1, 1, 2, 2]), new Set([2, 1, 2, 1])));
    assert.isTrue(areSetsEqual(new Set([1, 2, 3, 4]), new Set([4, 3, 2, 1])));
    assert.isFalse(areSetsEqual(new Set(), new Set([1])));
    assert.isFalse(areSetsEqual(new Set([1]), new Set([2])));
    assert.isFalse(areSetsEqual(new Set([1, 2, 4]), new Set([1, 2, 3])));
  });

  test('containsAll', () => {
    assert.isTrue(containsAll(new Set(), new Set()));
    assert.isTrue(containsAll(new Set([1]), new Set()));
    assert.isTrue(containsAll(new Set([1]), new Set([1])));
    assert.isTrue(containsAll(new Set([1, 2]), new Set([1])));
    assert.isTrue(containsAll(new Set([1, 2]), new Set([2])));
    assert.isTrue(containsAll(new Set([1, 2, 3, 4]), new Set([1, 4])));
    assert.isTrue(containsAll(new Set([1, 2, 3, 4]), new Set([1, 2, 3, 4])));
    assert.isFalse(containsAll(new Set(), new Set([2])));
    assert.isFalse(containsAll(new Set([1]), new Set([2])));
    assert.isFalse(containsAll(new Set([1, 2, 3, 4]), new Set([5])));
    assert.isFalse(containsAll(new Set([1, 2, 3, 4]), new Set([1, 2, 3, 5])));
  });

  test('intersections', () => {
    assert.sameDeepMembers(intersection([]), []);
    assert.sameDeepMembers(intersection([[1, 2, 3]]), [1, 2, 3]);
    assert.sameDeepMembers(
      intersection([
        [1, 2, 3],
        [2, 3, 4],
        [5, 3, 2],
      ]),
      [2, 3]
    );

    const foo1 = {value: 5};
    const foo2 = {value: 5};

    // these foo's will fail strict equality with each other, but a comparator
    // can make them intersect.
    assert.sameDeepMembers(intersection([[foo1], [foo2]]), []);
    assert.sameDeepMembers(
      intersection([[foo1], [foo2]], (a, b) => a.value === b.value),
      [foo1]
    );
  });
});