catapult/third_party/polymer/components/iron-a11y-keys-behavior/test/basic-test.html - platform/external/chromium-trace - Git at Google

 <!doctype html>
 <!--
 @license
 Copyright (c) 2015 The Polymer Project Authors. All rights reserved.
 This code may only be used under the BSD style license found at http://polymer.github.io/LICENSE.txt
 The complete set of authors may be found at http://polymer.github.io/AUTHORS.txt
 The complete set of contributors may be found at http://polymer.github.io/CONTRIBUTORS.txt
 Code distributed by Google as part of the polymer project is also
 subject to an additional IP rights grant found at http://polymer.github.io/PATENTS.txt
 -->
 <html>
 <head>
   <meta charset="UTF-8">
   <meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1.0, user-scalable=yes">
   <title>iron-a11y-keys</title>

   <script src="../../webcomponentsjs/webcomponents-lite.js"></script>
   <script src="../../web-component-tester/browser.js"></script>
   <script src="../../iron-test-helpers/mock-interactions.js"></script>

   <link rel="import" href="../../polymer/polymer.html">
   <link rel="import" href="../iron-a11y-keys-behavior.html">
 </head>
 <body>
   <test-fixture id="BasicKeys">
     <template>
       <x-a11y-basic-keys></x-a11y-basic-keys>
     </template>
   </test-fixture>

   <test-fixture id="NonPropagatingKeys">
     <template>
       <x-a11y-basic-keys stop-keyboard-event-propagation></x-a11y-basic-keys>
     </template>
   </test-fixture>

   <test-fixture id="ComboKeys">
     <template>
       <x-a11y-combo-keys></x-a11y-combo-keys>
     </template>
   </test-fixture>

   <test-fixture id="AlternativeEventKeys">
     <template>
       <x-a11y-alternate-event-keys></x-a11y-alternate-event-keys>
     </template>
   </test-fixture>

   <test-fixture id="BehaviorKeys">
     <template>
       <x-a11y-behavior-keys></x-a11y-behavior-keys>
     </template>
   </test-fixture>

   <test-fixture id="PreventKeys">
     <template>
       <x-a11y-prevent-keys></x-a11y-prevent-keys>
     </template>
   </test-fixture>

   <script>
 suite('Polymer.IronA11yKeysBehavior', function() {
   var keys;

   suiteSetup(function() {
     var KeysTestBehavior = [Polymer.IronA11yKeysBehavior, {
       properties: {
         keyCount: {
           type: Number,
           value: 0
         }
       },

       _keyHandler: function(event) {
         this.keyCount++;
         this.lastEvent = event;
       },

       // Same as _keyHandler, used to distinguish who's called before who.
       _keyHandler2: function(event) {
         this.keyCount++;
         this.lastEvent = event;
       },

       _preventDefaultHandler: function(event) {
         event.preventDefault();
         this.keyCount++;
         this.lastEvent = event;
       }
     }];

     Polymer({
       is: 'x-a11y-basic-keys',

       behaviors: [
         KeysTestBehavior
       ],

       keyBindings: {
         'space': '_keyHandler',
         '@': '_keyHandler',
         'esc': '_keyHandler'
       }
     });

     Polymer({
       is: 'x-a11y-combo-keys',

       behaviors: [
         KeysTestBehavior
       ],

       keyBindings: {
         'enter': '_keyHandler2',
         'ctrl+shift+a shift+enter': '_keyHandler'
       }
     });

     Polymer({
       is: 'x-a11y-alternate-event-keys',

       behaviors: [
         KeysTestBehavior
       ],

       keyBindings: {
         'space:keyup': '_keyHandler'
       }
     });

     var XA11yBehavior = {
       keyBindings: {
         'enter': '_keyHandler'
       }
     };

     Polymer({
       is: 'x-a11y-behavior-keys',

       behaviors: [
         KeysTestBehavior,
         XA11yBehavior
       ],

       keyBindings: {
         'enter': '_keyHandler'
       }
     });

     Polymer({
       is: 'x-a11y-prevent-keys',

       behaviors: [
         KeysTestBehavior,
         XA11yBehavior
       ],

       keyBindings: {
         'space a': '_keyHandler',
         'enter shift+a': '_preventDefaultHandler'
       }
     });
   });

   suite('basic keys', function() {
     setup(function() {
       keys = fixture('BasicKeys');
     });

     test('trigger the handler when the specified key is pressed', function() {
       MockInteractions.pressSpace(keys);

       expect(keys.keyCount).to.be.equal(1);
     });

     test('keyEventTarget can be null, and disables listeners', function() {
       keys.keyEventTarget = null;
       MockInteractions.pressSpace(keys);

       expect(keys.keyCount).to.be.equal(0);
     });

     test('trigger the handler when the specified key is pressed together with a modifier', function() {
       var event = new CustomEvent('keydown');
       event.ctrlKey = true;
       event.keyCode = event.code = 32;
       keys.dispatchEvent(event);
       expect(keys.keyCount).to.be.equal(1);
     });

     test('handles special character @', function() {
       MockInteractions.pressAndReleaseKeyOn(keys, undefined, [], '@');

       expect(keys.keyCount).to.be.equal(1);
     });

     test('handles variations of Esc key', function() {
       MockInteractions.pressAndReleaseKeyOn(keys, undefined, [], 'Esc');
       expect(keys.keyCount).to.be.equal(1);

       MockInteractions.pressAndReleaseKeyOn(keys, undefined, [], 'Escape');
       expect(keys.keyCount).to.be.equal(2);

       MockInteractions.pressAndReleaseKeyOn(keys, 27, [], '');
       expect(keys.keyCount).to.be.equal(3);
     });

     test('do not trigger the handler for non-specified keys', function() {
       MockInteractions.pressEnter(keys);

       expect(keys.keyCount).to.be.equal(0);
     });

     test('can have bindings added imperatively', function() {
       keys.addOwnKeyBinding('enter', '_keyHandler');

       MockInteractions.pressEnter(keys);
       expect(keys.keyCount).to.be.equal(1);

       MockInteractions.pressSpace(keys);
       expect(keys.keyCount).to.be.equal(2);
     });

     test('can remove imperatively added bindings', function() {
       keys.addOwnKeyBinding('enter', '_keyHandler');
       keys.removeOwnKeyBindings();

       MockInteractions.pressEnter(keys);
       expect(keys.keyCount).to.be.equal(0);

       MockInteractions.pressSpace(keys);
       expect(keys.keyCount).to.be.equal(1);
     });

     test('allows propagation beyond the key combo handler', function() {
       var keySpy = sinon.spy();
       document.addEventListener('keydown', keySpy);

       MockInteractions.pressEnter(keys);

       expect(keySpy.callCount).to.be.equal(1);
     });

     suite('edge cases', function() {
       test('knows that `spacebar` is the same as `space`', function() {
         var event = new CustomEvent('keydown');
         event.key = 'spacebar';
         expect(keys.keyboardEventMatchesKeys(event, 'space')).to.be.equal(true);
       });

       test('handles `+`', function() {
         var event = new CustomEvent('keydown');
         event.key = '+';
         expect(keys.keyboardEventMatchesKeys(event, '+')).to.be.equal(true);
       });

       test('handles `:`', function() {
         var event = new CustomEvent('keydown');
         event.key = ':';
         expect(keys.keyboardEventMatchesKeys(event, ':')).to.be.equal(true);
       });

       test('handles ` ` (space)', function() {
         var event = new CustomEvent('keydown');
         event.key = ' ';
         expect(keys.keyboardEventMatchesKeys(event, 'space')).to.be.equal(true);
       });
     });

     suite('matching keyboard events to keys', function() {
       test('can be done imperatively', function() {
         var event = new CustomEvent('keydown');
         event.keyCode = 65;
         expect(keys.keyboardEventMatchesKeys(event, 'a')).to.be.equal(true);
       });

       test('can be done with a provided keyboardEvent', function() {
         var event;
         MockInteractions.pressSpace(keys);
         event = keys.lastEvent;

         expect(event.detail.keyboardEvent).to.be.okay;
         expect(keys.keyboardEventMatchesKeys(event, 'space')).to.be.equal(true);
       });

       test('can handle variations in arrow key names', function() {
         var event = new CustomEvent('keydown');
         event.key = 'up';
         expect(keys.keyboardEventMatchesKeys(event, 'up')).to.be.equal(true);
         event.key = 'ArrowUp';
         expect(keys.keyboardEventMatchesKeys(event, 'up')).to.be.equal(true);
       });
     });

     suite('matching keyboard events to top row and number pad digit keys', function() {
       test('top row can be done imperatively', function() {
         var event = new CustomEvent('keydown');
         event.keyCode = 49;
         expect(keys.keyboardEventMatchesKeys(event, '1')).to.be.equal(true);
       });

       test('number pad digits can be done imperatively', function() {
         var event = new CustomEvent('keydown');
         event.keyCode = 97;
         expect(keys.keyboardEventMatchesKeys(event, '1')).to.be.equal(true);
       });
     });
   });

   suite('combo keys', function() {
     setup(function() {
       keys = fixture('ComboKeys');
     });

     test('trigger the handler when the combo is pressed', function() {
       var event = new CustomEvent('keydown');

       event.ctrlKey = true;
       event.shiftKey = true;
       event.keyCode = event.code = 65;

       keys.dispatchEvent(event);

       expect(keys.keyCount).to.be.equal(1);
     });

     test('check if KeyBoardEvent.key is alpha-numberic', function() {
       var event = new CustomEvent('keydown');

       event.ctrlKey = true;
       event.shiftKey = true;
       event.key = 'å';
       event.keyCode = event.code = 65;

       keys.dispatchEvent(event);

       expect(keys.keyCount).to.be.equal(1);
     });

     test('trigger also bindings without modifiers', function() {
       var event = new CustomEvent('keydown');
       // Combo `shift+enter`.
       event.shiftKey = true;
       event.keyCode = event.code = 13;
       keys.dispatchEvent(event);
       expect(keys.keyCount).to.be.equal(2);
     });

     test('give precendence to combos with modifiers', function() {
       var enterSpy = sinon.spy(keys, '_keyHandler2');
       var shiftEnterSpy = sinon.spy(keys, '_keyHandler');
       var event = new CustomEvent('keydown');
       // Combo `shift+enter`.
       event.shiftKey = true;
       event.keyCode = event.code = 13;
       keys.dispatchEvent(event);
       expect(enterSpy.called).to.be.true;
       expect(shiftEnterSpy.called).to.be.true;
       expect(enterSpy.calledAfter(shiftEnterSpy)).to.be.true;
     });

   });

   suite('alternative event keys', function() {
     setup(function() {
       keys = fixture('AlternativeEventKeys');
     });

     test('trigger on the specified alternative keyboard event', function() {
       MockInteractions.keyDownOn(keys, 32);

       expect(keys.keyCount).to.be.equal(0);

       MockInteractions.keyUpOn(keys, 32);

       expect(keys.keyCount).to.be.equal(1);
     });
   });

   suite('behavior keys', function() {
     setup(function() {
       keys = fixture('BehaviorKeys');
     });

     test('bindings in other behaviors are transitive', function() {
       MockInteractions.pressEnter(keys);
       expect(keys.keyCount).to.be.equal(2);
     });
   });

   suite('stopping propagation automatically', function() {
     setup(function() {
       keys = fixture('NonPropagatingKeys');
     });

     test('does not propagate key events beyond the combo handler', function() {
       var keySpy = sinon.spy();

       document.addEventListener('keydown', keySpy);

       MockInteractions.pressEnter(keys);

       expect(keySpy.callCount).to.be.equal(0);
     });
   });

   suite('prevent default behavior of event', function() {
     setup(function() {
       keys = fixture('PreventKeys');
     });

     test('`defaultPrevented` is correctly set', function() {
       MockInteractions.pressEnter(keys);
       expect(keys.lastEvent.defaultPrevented).to.be.equal(true);
     });

     test('only 1 handler is invoked', function() {
       var aSpy = sinon.spy(keys, '_keyHandler');
       var shiftASpy = sinon.spy(keys, '_preventDefaultHandler');
       var event = new CustomEvent('keydown', {
         cancelable: true
       });
       // Combo `shift+a`.
       event.shiftKey = true;
       event.keyCode = event.code = 65;
       keys.dispatchEvent(event);

       expect(keys.keyCount).to.be.equal(1);
       expect(shiftASpy.called).to.be.true;
       expect(aSpy.called).to.be.false;
     });
   });

   suite('remove key behavior with null target', function () {
     test('add and remove a iron-a11y-keys-behavior', function () {
       var element = document.createElement('x-a11y-basic-keys');
       element.keyEventTarget = null;
       document.body.appendChild(element);
       document.body.removeChild(element);
     });
   });

 });
   </script>
 </body>
 </html>
	<!doctype html>
	<!--
	@license
	Copyright (c) 2015 The Polymer Project Authors. All rights reserved.
	This code may only be used under the BSD style license found at http://polymer.github.io/LICENSE.txt
	The complete set of authors may be found at http://polymer.github.io/AUTHORS.txt
	The complete set of contributors may be found at http://polymer.github.io/CONTRIBUTORS.txt
	Code distributed by Google as part of the polymer project is also
	subject to an additional IP rights grant found at http://polymer.github.io/PATENTS.txt
	-->
	<html>
	<head>
	<meta charset="UTF-8">
	<meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1.0, user-scalable=yes">
	<title>iron-a11y-keys</title>

	<script src="../../webcomponentsjs/webcomponents-lite.js"></script>
	<script src="../../web-component-tester/browser.js"></script>
	<script src="../../iron-test-helpers/mock-interactions.js"></script>

	<link rel="import" href="../../polymer/polymer.html">
	<link rel="import" href="../iron-a11y-keys-behavior.html">
	</head>
	<body>
	<test-fixture id="BasicKeys">
	<template>
	<x-a11y-basic-keys></x-a11y-basic-keys>
	</template>
	</test-fixture>

	<test-fixture id="NonPropagatingKeys">
	<template>
	<x-a11y-basic-keys stop-keyboard-event-propagation></x-a11y-basic-keys>
	</template>
	</test-fixture>

	<test-fixture id="ComboKeys">
	<template>
	<x-a11y-combo-keys></x-a11y-combo-keys>
	</template>
	</test-fixture>

	<test-fixture id="AlternativeEventKeys">
	<template>
	<x-a11y-alternate-event-keys></x-a11y-alternate-event-keys>
	</template>
	</test-fixture>

	<test-fixture id="BehaviorKeys">
	<template>
	<x-a11y-behavior-keys></x-a11y-behavior-keys>
	</template>
	</test-fixture>

	<test-fixture id="PreventKeys">
	<template>
	<x-a11y-prevent-keys></x-a11y-prevent-keys>
	</template>
	</test-fixture>

	<script>
	suite('Polymer.IronA11yKeysBehavior', function() {
	var keys;

	suiteSetup(function() {
	var KeysTestBehavior = [Polymer.IronA11yKeysBehavior, {
	properties: {
	keyCount: {
	type: Number,
	value: 0
	}
	},

	_keyHandler: function(event) {
	this.keyCount++;
	this.lastEvent = event;
	},

	// Same as _keyHandler, used to distinguish who's called before who.
	_keyHandler2: function(event) {
	this.keyCount++;
	this.lastEvent = event;
	},

	_preventDefaultHandler: function(event) {
	event.preventDefault();
	this.keyCount++;
	this.lastEvent = event;
	}
	}];

	Polymer({
	is: 'x-a11y-basic-keys',

	behaviors: [
	KeysTestBehavior
	],

	keyBindings: {
	'space': '_keyHandler',
	'@': '_keyHandler',
	'esc': '_keyHandler'
	}
	});

	Polymer({
	is: 'x-a11y-combo-keys',

	behaviors: [
	KeysTestBehavior
	],

	keyBindings: {
	'enter': '_keyHandler2',
	'ctrl+shift+a shift+enter': '_keyHandler'
	}
	});

	Polymer({
	is: 'x-a11y-alternate-event-keys',

	behaviors: [
	KeysTestBehavior
	],

	keyBindings: {
	'space:keyup': '_keyHandler'
	}
	});

	var XA11yBehavior = {
	keyBindings: {
	'enter': '_keyHandler'
	}
	};

	Polymer({
	is: 'x-a11y-behavior-keys',

	behaviors: [
	KeysTestBehavior,
	XA11yBehavior
	],

	keyBindings: {
	'enter': '_keyHandler'
	}
	});

	Polymer({
	is: 'x-a11y-prevent-keys',

	behaviors: [
	KeysTestBehavior,
	XA11yBehavior
	],

	keyBindings: {
	'space a': '_keyHandler',
	'enter shift+a': '_preventDefaultHandler'
	}
	});
	});

	suite('basic keys', function() {
	setup(function() {
	keys = fixture('BasicKeys');
	});

	test('trigger the handler when the specified key is pressed', function() {
	MockInteractions.pressSpace(keys);

	expect(keys.keyCount).to.be.equal(1);
	});

	test('keyEventTarget can be null, and disables listeners', function() {
	keys.keyEventTarget = null;
	MockInteractions.pressSpace(keys);

	expect(keys.keyCount).to.be.equal(0);
	});

	test('trigger the handler when the specified key is pressed together with a modifier', function() {
	var event = new CustomEvent('keydown');
	event.ctrlKey = true;
	event.keyCode = event.code = 32;
	keys.dispatchEvent(event);
	expect(keys.keyCount).to.be.equal(1);
	});

	test('handles special character @', function() {
	MockInteractions.pressAndReleaseKeyOn(keys, undefined, [], '@');

	expect(keys.keyCount).to.be.equal(1);
	});

	test('handles variations of Esc key', function() {
	MockInteractions.pressAndReleaseKeyOn(keys, undefined, [], 'Esc');
	expect(keys.keyCount).to.be.equal(1);

	MockInteractions.pressAndReleaseKeyOn(keys, undefined, [], 'Escape');
	expect(keys.keyCount).to.be.equal(2);

	MockInteractions.pressAndReleaseKeyOn(keys, 27, [], '');
	expect(keys.keyCount).to.be.equal(3);
	});

	test('do not trigger the handler for non-specified keys', function() {
	MockInteractions.pressEnter(keys);

	expect(keys.keyCount).to.be.equal(0);
	});

	test('can have bindings added imperatively', function() {
	keys.addOwnKeyBinding('enter', '_keyHandler');

	MockInteractions.pressEnter(keys);
	expect(keys.keyCount).to.be.equal(1);

	MockInteractions.pressSpace(keys);
	expect(keys.keyCount).to.be.equal(2);
	});

	test('can remove imperatively added bindings', function() {
	keys.addOwnKeyBinding('enter', '_keyHandler');
	keys.removeOwnKeyBindings();

	MockInteractions.pressEnter(keys);
	expect(keys.keyCount).to.be.equal(0);

	MockInteractions.pressSpace(keys);
	expect(keys.keyCount).to.be.equal(1);
	});

	test('allows propagation beyond the key combo handler', function() {
	var keySpy = sinon.spy();
	document.addEventListener('keydown', keySpy);

	MockInteractions.pressEnter(keys);

	expect(keySpy.callCount).to.be.equal(1);
	});

	suite('edge cases', function() {
	test('knows that `spacebar` is the same as `space`', function() {
	var event = new CustomEvent('keydown');
	event.key = 'spacebar';
	expect(keys.keyboardEventMatchesKeys(event, 'space')).to.be.equal(true);
	});

	test('handles `+`', function() {
	var event = new CustomEvent('keydown');
	event.key = '+';
	expect(keys.keyboardEventMatchesKeys(event, '+')).to.be.equal(true);
	});

	test('handles `:`', function() {
	var event = new CustomEvent('keydown');
	event.key = ':';
	expect(keys.keyboardEventMatchesKeys(event, ':')).to.be.equal(true);
	});

	test('handles ` ` (space)', function() {
	var event = new CustomEvent('keydown');
	event.key = ' ';
	expect(keys.keyboardEventMatchesKeys(event, 'space')).to.be.equal(true);
	});
	});

	suite('matching keyboard events to keys', function() {
	test('can be done imperatively', function() {
	var event = new CustomEvent('keydown');
	event.keyCode = 65;
	expect(keys.keyboardEventMatchesKeys(event, 'a')).to.be.equal(true);
	});

	test('can be done with a provided keyboardEvent', function() {
	var event;
	MockInteractions.pressSpace(keys);
	event = keys.lastEvent;

	expect(event.detail.keyboardEvent).to.be.okay;
	expect(keys.keyboardEventMatchesKeys(event, 'space')).to.be.equal(true);
	});

	test('can handle variations in arrow key names', function() {
	var event = new CustomEvent('keydown');
	event.key = 'up';
	expect(keys.keyboardEventMatchesKeys(event, 'up')).to.be.equal(true);
	event.key = 'ArrowUp';
	expect(keys.keyboardEventMatchesKeys(event, 'up')).to.be.equal(true);
	});
	});

	suite('matching keyboard events to top row and number pad digit keys', function() {
	test('top row can be done imperatively', function() {
	var event = new CustomEvent('keydown');
	event.keyCode = 49;
	expect(keys.keyboardEventMatchesKeys(event, '1')).to.be.equal(true);
	});

	test('number pad digits can be done imperatively', function() {
	var event = new CustomEvent('keydown');
	event.keyCode = 97;
	expect(keys.keyboardEventMatchesKeys(event, '1')).to.be.equal(true);
	});
	});
	});

	suite('combo keys', function() {
	setup(function() {
	keys = fixture('ComboKeys');
	});

	test('trigger the handler when the combo is pressed', function() {
	var event = new CustomEvent('keydown');

	event.ctrlKey = true;
	event.shiftKey = true;
	event.keyCode = event.code = 65;

	keys.dispatchEvent(event);

	expect(keys.keyCount).to.be.equal(1);
	});

	test('check if KeyBoardEvent.key is alpha-numberic', function() {
	var event = new CustomEvent('keydown');

	event.ctrlKey = true;
	event.shiftKey = true;
	event.key = 'å';
	event.keyCode = event.code = 65;

	keys.dispatchEvent(event);

	expect(keys.keyCount).to.be.equal(1);
	});

	test('trigger also bindings without modifiers', function() {
	var event = new CustomEvent('keydown');
	// Combo `shift+enter`.
	event.shiftKey = true;
	event.keyCode = event.code = 13;
	keys.dispatchEvent(event);
	expect(keys.keyCount).to.be.equal(2);
	});

	test('give precendence to combos with modifiers', function() {
	var enterSpy = sinon.spy(keys, '_keyHandler2');
	var shiftEnterSpy = sinon.spy(keys, '_keyHandler');
	var event = new CustomEvent('keydown');
	// Combo `shift+enter`.
	event.shiftKey = true;
	event.keyCode = event.code = 13;
	keys.dispatchEvent(event);
	expect(enterSpy.called).to.be.true;
	expect(shiftEnterSpy.called).to.be.true;
	expect(enterSpy.calledAfter(shiftEnterSpy)).to.be.true;
	});

	});

	suite('alternative event keys', function() {
	setup(function() {
	keys = fixture('AlternativeEventKeys');
	});

	test('trigger on the specified alternative keyboard event', function() {
	MockInteractions.keyDownOn(keys, 32);

	expect(keys.keyCount).to.be.equal(0);

	MockInteractions.keyUpOn(keys, 32);

	expect(keys.keyCount).to.be.equal(1);
	});
	});

	suite('behavior keys', function() {
	setup(function() {
	keys = fixture('BehaviorKeys');
	});

	test('bindings in other behaviors are transitive', function() {
	MockInteractions.pressEnter(keys);
	expect(keys.keyCount).to.be.equal(2);
	});
	});

	suite('stopping propagation automatically', function() {
	setup(function() {
	keys = fixture('NonPropagatingKeys');
	});

	test('does not propagate key events beyond the combo handler', function() {
	var keySpy = sinon.spy();

	document.addEventListener('keydown', keySpy);

	MockInteractions.pressEnter(keys);

	expect(keySpy.callCount).to.be.equal(0);
	});
	});

	suite('prevent default behavior of event', function() {
	setup(function() {
	keys = fixture('PreventKeys');
	});

	test('`defaultPrevented` is correctly set', function() {
	MockInteractions.pressEnter(keys);
	expect(keys.lastEvent.defaultPrevented).to.be.equal(true);
	});

	test('only 1 handler is invoked', function() {
	var aSpy = sinon.spy(keys, '_keyHandler');
	var shiftASpy = sinon.spy(keys, '_preventDefaultHandler');
	var event = new CustomEvent('keydown', {
	cancelable: true
	});
	// Combo `shift+a`.
	event.shiftKey = true;
	event.keyCode = event.code = 65;
	keys.dispatchEvent(event);

	expect(keys.keyCount).to.be.equal(1);
	expect(shiftASpy.called).to.be.true;
	expect(aSpy.called).to.be.false;
	});
	});

	suite('remove key behavior with null target', function () {
	test('add and remove a iron-a11y-keys-behavior', function () {
	var element = document.createElement('x-a11y-basic-keys');
	element.keyEventTarget = null;
	document.body.appendChild(element);
	document.body.removeChild(element);
	});
	});

	});
	</script>
	</body>
	</html>