chrome/browser/resources/chromeos/switch_access/rect_helper_unittest.gtestjs

// Copyright 2019 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

/**
 * Test fixture for rect_helper.js.
 * @constructor
 * @extends {testing.Test}
 */
function SwitchAccessRectHelperUnitTest() {
  testing.Test.call(this);
}

SwitchAccessRectHelperUnitTest.prototype = {
  __proto__: testing.Test.prototype,

  /** @override */
  extraLibraries: [
    'rect_helper.js',
  ],

  equal: (rect1, rect2) => rect1.left === rect2.left &&
                           rect1.top === rect2.top &&
                           rect1.width === rect2.width &&
                           rect1.height === rect2.height,
};

TEST_F('SwitchAccessRectHelperUnitTest',
       'ExpandToFitWithPadding_OuterContainedInInner', function() {
  const padding = 5;
  const inner = {left: 100, top: 100, width: 100, height: 100};

  const outer = {left: 120, top: 120, width: 20, height: 20};
  let expected = {left: 95, top: 95, width: 110, height: 110};

  assertTrue(this.equal(expected,
      RectHelper.expandToFitWithPadding(padding, outer, inner)));
});

TEST_F('SwitchAccessRectHelperUnitTest',
       'ExpandToFitWithPadding_OuterContainsInner', function() {
  const padding = 5;
  const inner = {left: 100, top: 100, width: 100, height: 100};
  const outer = {left: 50, top: 50, width: 200, height: 200};

  assertTrue(this.equal(outer,
      RectHelper.expandToFitWithPadding(padding, outer, inner)));
});

TEST_F('SwitchAccessRectHelperUnitTest', 'ExpandToFitWithPadding_NoOverlap',
       function() {
  const padding = 5;
  const inner = {left: 100, top: 100, width: 100, height: 100};
  const outer = {left: 10, top: 10, width: 10, height: 10};
  expected = {left: 10, top: 10, width: 195, height: 195};

  assertTrue(this.equal(expected,
      RectHelper.expandToFitWithPadding(padding, outer, inner)));
});

TEST_F('SwitchAccessRectHelperUnitTest', 'ExpandToFitWithPadding_Overlap',
       function() {
  const padding = 5;
  const inner = {left: 100, top: 100, width: 100, height: 100};
  const outer = {left: 120, top: 50, width: 200, height: 200};
  expected = {left: 95, top: 50, width: 225, height: 200};

  assertTrue(this.equal(expected,
      RectHelper.expandToFitWithPadding(padding, outer, inner)));
});

TEST_F('SwitchAccessRectHelperUnitTest', 'ExpandToFitWithPadding_WithinPadding',
       function() {
  const padding = 5;
  const inner = {left: 100, top: 100, width: 100, height: 100};
  const outer = {left: 97, top: 95, width: 108, height: 110};
  expected = {left: 95, top: 95, width: 110, height: 110};

  assertTrue(this.equal(expected,
      RectHelper.expandToFitWithPadding(padding, outer, inner)));
});