Set up Bower. Install Mousetrap.

* Create limited bower.json file
* Create .bowerrc that tells Bower to use the `lib` directory
* Install Mousetrap for key events

1 files changed, 684 insertions, 0 deletions

diff --git a/lib/mousetrap/tests/test.mousetrap.js b/lib/mousetrap/tests/test.mousetrap.js
new file mode 100644
index 0000000..fdd24f7
--- /dev/null
+++ b/lib/mousetrap/tests/test.mousetrap.js
@@ -0,0 +1,684 @@
+/* jshint es5: true, browser: true, expr: true */
+/* globals describe, afterEach, chai, it, sinon, Mousetrap, KeyEvent, Event */
+var expect = chai.expect;
+afterEach(function() {
+    Mousetrap.reset();
+});
+
+describe('Mousetrap.bind', function() {
+    describe('basic', function() {
+        it('z key fires when pressing z', function() {
+            var spy = sinon.spy();
+
+            Mousetrap.bind('z', spy);
+
+            KeyEvent.simulate('Z'.charCodeAt(0), 90);
+
+            // really slow for some reason
+            // expect(spy).to.have.been.calledOnce;
+            expect(spy.callCount).to.equal(1, 'callback should fire once');
+            expect(spy.args[0][0]).to.be.an.instanceOf(Event, 'first argument should be Event');
+            expect(spy.args[0][1]).to.equal('z', 'second argument should be key combo');
+        });
+
+        it('z key fires from keydown', function() {
+            var spy = sinon.spy();
+
+            Mousetrap.bind('z', spy, 'keydown');
+
+            KeyEvent.simulate('Z'.charCodeAt(0), 90);
+
+            // really slow for some reason
+            // expect(spy).to.have.been.calledOnce;
+            expect(spy.callCount).to.equal(1, 'callback should fire once');
+            expect(spy.args[0][0]).to.be.an.instanceOf(Event, 'first argument should be Event');
+            expect(spy.args[0][1]).to.equal('z', 'second argument should be key combo');
+        });
+
+        it('z key does not fire when pressing b', function() {
+            var spy = sinon.spy();
+
+            Mousetrap.bind('z', spy);
+
+            KeyEvent.simulate('B'.charCodeAt(0), 66);
+
+            expect(spy.callCount).to.equal(0);
+        });
+
+        it('z key does not fire when holding a modifier key', function() {
+            var spy = sinon.spy();
+            var modifiers = ['ctrl', 'alt', 'meta', 'shift'];
+            var charCode;
+            var modifier;
+
+            Mousetrap.bind('z', spy);
+
+            for (var i = 0; i < 4; i++) {
+                modifier = modifiers[i];
+                charCode = 'Z'.charCodeAt(0);
+
+                // character code is different when alt is pressed
+                if (modifier == 'alt') {
+                    charCode = 'Ω'.charCodeAt(0);
+                }
+
+                spy.reset();
+
+                KeyEvent.simulate(charCode, 90, [modifier]);
+
+                expect(spy.callCount).to.equal(0);
+            }
+        });
+
+        it('keyup events should fire', function() {
+            var spy = sinon.spy();
+
+            Mousetrap.bind('z', spy, 'keyup');
+
+            KeyEvent.simulate('Z'.charCodeAt(0), 90);
+
+            expect(spy.callCount).to.equal(1, 'keyup event for "z" should fire');
+
+            // for key held down we should only get one key up
+            KeyEvent.simulate('Z'.charCodeAt(0), 90, [], document, 10);
+            expect(spy.callCount).to.equal(2, 'keyup event for "z" should fire once for held down key');
+        });
+
+        it('keyup event for 0 should fire', function() {
+            var spy = sinon.spy();
+
+            Mousetrap.bind('0', spy, 'keyup');
+
+            KeyEvent.simulate(0, 48);
+
+            expect(spy.callCount).to.equal(1, 'keyup event for "0" should fire');
+        });
+
+        it('rebinding a key overwrites the callback for that key', function() {
+            var spy1 = sinon.spy();
+            var spy2 = sinon.spy();
+            Mousetrap.bind('x', spy1);
+            Mousetrap.bind('x', spy2);
+
+            KeyEvent.simulate('X'.charCodeAt(0), 88);
+
+            expect(spy1.callCount).to.equal(0, 'original callback should not fire');
+            expect(spy2.callCount).to.equal(1, 'new callback should fire');
+        });
+
+        it('binding an array of keys', function() {
+            var spy = sinon.spy();
+            Mousetrap.bind(['a', 'b', 'c'], spy);
+
+            KeyEvent.simulate('A'.charCodeAt(0), 65);
+            expect(spy.callCount).to.equal(1, 'new callback was called');
+            expect(spy.args[0][1]).to.equal('a', 'callback should match "a"');
+
+            KeyEvent.simulate('B'.charCodeAt(0), 66);
+            expect(spy.callCount).to.equal(2, 'new callback was called twice');
+            expect(spy.args[1][1]).to.equal('b', 'callback should match "b"');
+
+            KeyEvent.simulate('C'.charCodeAt(0), 67);
+            expect(spy.callCount).to.equal(3, 'new callback was called three times');
+            expect(spy.args[2][1]).to.equal('c', 'callback should match "c"');
+        });
+
+        it('return false should prevent default and stop propagation', function() {
+            var spy = sinon.spy(function() {
+                return false;
+            });
+
+            Mousetrap.bind('command+s', spy);
+
+            KeyEvent.simulate('S'.charCodeAt(0), 83, ['meta']);
+
+            expect(spy.callCount).to.equal(1, 'callback should fire');
+            expect(spy.args[0][0]).to.be.an.instanceOf(Event, 'first argument should be Event');
+
+            expect(spy.args[0][0].defaultPrevented).to.be.true;
+
+            // cancelBubble is not correctly set to true in webkit/blink
+            //
+            // @see https://code.google.com/p/chromium/issues/detail?id=162270
+            // expect(spy.args[0][0].cancelBubble).to.be.true;
+
+            // try without return false
+            spy = sinon.spy();
+            Mousetrap.bind('command+s', spy);
+            KeyEvent.simulate('S'.charCodeAt(0), 83, ['meta']);
+
+            expect(spy.callCount).to.equal(1, 'callback should fire');
+            expect(spy.args[0][0]).to.be.an.instanceOf(Event, 'first argument should be Event');
+            expect(spy.args[0][0].cancelBubble).to.be.falsey;
+            expect(spy.args[0][0].defaultPrevented).to.be.falsey;
+        });
+
+        it('capslock key is ignored', function() {
+            var spy = sinon.spy();
+            Mousetrap.bind('a', spy);
+
+            KeyEvent.simulate('a'.charCodeAt(0), 65);
+            expect(spy.callCount).to.equal(1, 'callback should fire for lowercase a');
+
+            spy.reset();
+            KeyEvent.simulate('A'.charCodeAt(0), 65);
+            expect(spy.callCount).to.equal(1, 'callback should fire for capslock A');
+
+            spy.reset();
+            KeyEvent.simulate('A'.charCodeAt(0), 65, ['shift']);
+            expect(spy.callCount).to.equal(0, 'callback should not fire fort shift+a');
+        });
+    });
+
+    describe('special characters', function() {
+        it('binding special characters', function() {
+            var spy = sinon.spy();
+            Mousetrap.bind('*', spy);
+
+            KeyEvent.simulate('*'.charCodeAt(0), 56, ['shift']);
+
+            expect(spy.callCount).to.equal(1, 'callback should fire');
+            expect(spy.args[0][1]).to.equal('*', 'callback should match *');
+        });
+
+        it('binding special characters keyup', function() {
+            var spy = sinon.spy();
+            Mousetrap.bind('*', spy, 'keyup');
+
+            KeyEvent.simulate('*'.charCodeAt(0), 56, ['shift']);
+
+            expect(spy.callCount).to.equal(1, 'callback should fire');
+            expect(spy.args[0][1]).to.equal('*', 'callback should match "*"');
+        });
+
+        it('binding keys with no associated charCode', function() {
+            var spy = sinon.spy();
+            Mousetrap.bind('left', spy);
+
+            KeyEvent.simulate(0, 37);
+
+            expect(spy.callCount).to.equal(1, 'callback should fire');
+            expect(spy.args[0][1]).to.equal('left', 'callback should match "left"');
+        });
+
+        it('binding plus key alone should work', function() {
+            var spy = sinon.spy();
+            Mousetrap.bind('+', spy);
+
+            // fires for regular + character
+            KeyEvent.simulate('+'.charCodeAt(0), 43);
+
+            // and for shift+=
+            KeyEvent.simulate(43, 187, ['shift']);
+
+            expect(spy.callCount).to.equal(2, 'callback should fire');
+            expect(spy.args[0][1]).to.equal('+', 'callback should match "+"');
+        });
+
+        it('binding plus key as "plus" should work', function() {
+            var spy = sinon.spy();
+            Mousetrap.bind('plus', spy);
+
+            // fires for regular + character
+            KeyEvent.simulate('+'.charCodeAt(0), 43);
+
+            // and for shift+=
+            KeyEvent.simulate(43, 187, ['shift']);
+
+            expect(spy.callCount).to.equal(2, 'callback should fire');
+            expect(spy.args[0][1]).to.equal('plus', 'callback should match "plus"');
+        });
+
+        it('binding to alt++ should work', function() {
+            var spy = sinon.spy();
+            Mousetrap.bind('alt++', spy);
+
+            KeyEvent.simulate('+'.charCodeAt(0), 43, ['alt']);
+            expect(spy.callCount).to.equal(1, 'callback should fire');
+            expect(spy.args[0][1]).to.equal('alt++', 'callback should match "alt++"');
+        });
+
+        it('binding to alt+shift++ should work as well', function() {
+            var spy = sinon.spy();
+            Mousetrap.bind('alt+shift++', spy);
+
+            KeyEvent.simulate('+'.charCodeAt(0), 43, ['shift', 'alt']);
+            expect(spy.callCount).to.equal(1, 'callback should fire');
+            expect(spy.args[0][1]).to.equal('alt+shift++', 'callback should match "alt++"');
+
+        })
+    });
+
+    describe('combos with modifiers', function() {
+        it('binding key combinations', function() {
+            var spy = sinon.spy();
+            Mousetrap.bind('command+o', spy);
+
+            KeyEvent.simulate('O'.charCodeAt(0), 79, ['meta']);
+
+            expect(spy.callCount).to.equal(1, 'command+o callback should fire');
+            expect(spy.args[0][1]).to.equal('command+o', 'keyboard string returned is correct');
+        });
+
+        it('binding key combos with multiple modifiers', function() {
+            var spy = sinon.spy();
+            Mousetrap.bind('command+shift+o', spy);
+            KeyEvent.simulate('O'.charCodeAt(0), 79, ['meta']);
+            expect(spy.callCount).to.equal(0, 'command+o callback should not fire');
+
+            KeyEvent.simulate('O'.charCodeAt(0), 79, ['meta', 'shift']);
+            expect(spy.callCount).to.equal(1, 'command+o callback should fire');
+        });
+    });
+
+    describe('sequences', function() {
+        it('binding sequences', function() {
+            var spy = sinon.spy();
+            Mousetrap.bind('g i', spy);
+
+            KeyEvent.simulate('G'.charCodeAt(0), 71);
+            expect(spy.callCount).to.equal(0, 'callback should not fire');
+
+            KeyEvent.simulate('I'.charCodeAt(0), 73);
+            expect(spy.callCount).to.equal(1, 'callback should fire');
+        });
+
+        it('binding sequences with mixed types', function() {
+            var spy = sinon.spy();
+            Mousetrap.bind('g o enter', spy);
+
+            KeyEvent.simulate('G'.charCodeAt(0), 71);
+            expect(spy.callCount).to.equal(0, 'callback should not fire');
+
+            KeyEvent.simulate('O'.charCodeAt(0), 79);
+            expect(spy.callCount).to.equal(0, 'callback should not fire');
+
+            KeyEvent.simulate(0, 13);
+            expect(spy.callCount).to.equal(1, 'callback should fire');
+        });
+
+        it('binding sequences starting with modifier keys', function() {
+            var spy = sinon.spy();
+            Mousetrap.bind('option enter', spy);
+            KeyEvent.simulate(0, 18, ['alt']);
+            KeyEvent.simulate(0, 13);
+            expect(spy.callCount).to.equal(1, 'callback should fire');
+
+            spy = sinon.spy();
+            Mousetrap.bind('command enter', spy);
+            KeyEvent.simulate(0, 91, ['meta']);
+            KeyEvent.simulate(0, 13);
+            expect(spy.callCount).to.equal(1, 'callback should fire');
+
+            spy = sinon.spy();
+            Mousetrap.bind('escape enter', spy);
+            KeyEvent.simulate(0, 27);
+            KeyEvent.simulate(0, 13);
+            expect(spy.callCount).to.equal(1, 'callback should fire');
+        });
+
+        it('key within sequence should not fire', function() {
+            var spy1 = sinon.spy();
+            var spy2 = sinon.spy();
+            Mousetrap.bind('a', spy1);
+            Mousetrap.bind('c a t', spy2);
+
+            KeyEvent.simulate('A'.charCodeAt(0), 65);
+            expect(spy1.callCount).to.equal(1, 'callback 1 should fire');
+            spy1.reset();
+
+            KeyEvent.simulate('C'.charCodeAt(0), 67);
+            KeyEvent.simulate('A'.charCodeAt(0), 65);
+            KeyEvent.simulate('T'.charCodeAt(0), 84);
+            expect(spy1.callCount).to.equal(0, 'callback for "a" key should not fire');
+            expect(spy2.callCount).to.equal(1, 'callback for "c a t" sequence should fire');
+        });
+
+        it('keyup at end of sequence should not fire', function() {
+            var spy1 = sinon.spy();
+            var spy2 = sinon.spy();
+
+            Mousetrap.bind('t', spy1, 'keyup');
+            Mousetrap.bind('b a t', spy2);
+
+            KeyEvent.simulate('B'.charCodeAt(0), 66);
+            KeyEvent.simulate('A'.charCodeAt(0), 65);
+            KeyEvent.simulate('T'.charCodeAt(0), 84);
+
+            expect(spy1.callCount).to.equal(0, 'callback for "t" keyup should not fire');
+            expect(spy2.callCount).to.equal(1, 'callback for "b a t" sequence should fire');
+        });
+
+        it('keyup sequences should work', function() {
+            var spy = sinon.spy();
+            Mousetrap.bind('b a t', spy, 'keyup');
+
+            KeyEvent.simulate('b'.charCodeAt(0), 66);
+            KeyEvent.simulate('a'.charCodeAt(0), 65);
+
+            // hold the last key down for a while
+            KeyEvent.simulate('t'.charCodeAt(0), 84, [], document, 10);
+
+            expect(spy.callCount).to.equal(1, 'callback for "b a t" sequence should fire on keyup');
+        });
+
+        it('extra spaces in sequences should be ignored', function() {
+            var spy = sinon.spy();
+            Mousetrap.bind('b   a  t', spy);
+
+            KeyEvent.simulate('b'.charCodeAt(0), 66);
+            KeyEvent.simulate('a'.charCodeAt(0), 65);
+            KeyEvent.simulate('t'.charCodeAt(0), 84);
+
+            expect(spy.callCount).to.equal(1, 'callback for "b a t" sequence should fire');
+        });
+
+        it('modifiers and sequences play nicely', function() {
+            var spy1 = sinon.spy();
+            var spy2 = sinon.spy();
+
+            Mousetrap.bind('ctrl a', spy1);
+            Mousetrap.bind('ctrl+b', spy2);
+
+            KeyEvent.simulate(0, 17, ['ctrl']);
+            KeyEvent.simulate('A'.charCodeAt(0), 65);
+            expect(spy1.callCount).to.equal(1, '"ctrl a" should fire');
+
+            KeyEvent.simulate('B'.charCodeAt(0), 66, ['ctrl']);
+            expect(spy2.callCount).to.equal(1, '"ctrl+b" should fire');
+        });
+
+        it('sequences that start the same work', function() {
+            var spy1 = sinon.spy();
+            var spy2 = sinon.spy();
+
+            Mousetrap.bind('g g l', spy2);
+            Mousetrap.bind('g g o', spy1);
+
+            KeyEvent.simulate('g'.charCodeAt(0), 71);
+            KeyEvent.simulate('g'.charCodeAt(0), 71);
+            KeyEvent.simulate('o'.charCodeAt(0), 79);
+            expect(spy1.callCount).to.equal(1, '"g g o" should fire');
+            expect(spy2.callCount).to.equal(0, '"g g l" should not fire');
+
+            spy1.reset();
+            spy2.reset();
+            KeyEvent.simulate('g'.charCodeAt(0), 71);
+            KeyEvent.simulate('g'.charCodeAt(0), 71);
+            KeyEvent.simulate('l'.charCodeAt(0), 76);
+            expect(spy1.callCount).to.equal(0, '"g g o" should not fire');
+            expect(spy2.callCount).to.equal(1, '"g g l" should fire');
+        });
+
+        it('sequences should not fire subsequences', function() {
+            var spy1 = sinon.spy();
+            var spy2 = sinon.spy();
+
+            Mousetrap.bind('a b c', spy1);
+            Mousetrap.bind('b c', spy2);
+
+            KeyEvent.simulate('A'.charCodeAt(0), 65);
+            KeyEvent.simulate('B'.charCodeAt(0), 66);
+            KeyEvent.simulate('C'.charCodeAt(0), 67);
+
+            expect(spy1.callCount).to.equal(1, '"a b c" should fire');
+            expect(spy2.callCount).to.equal(0, '"b c" should not fire');
+
+            spy1.reset();
+            spy2.reset();
+            Mousetrap.bind('option b', spy1);
+            Mousetrap.bind('a option b', spy2);
+
+            KeyEvent.simulate('A'.charCodeAt(0), 65);
+            KeyEvent.simulate(0, 18, ['alt']);
+            KeyEvent.simulate('B'.charCodeAt(0), 66);
+
+            expect(spy1.callCount).to.equal(0, '"option b" should not fire');
+            expect(spy2.callCount).to.equal(1, '"a option b" should fire');
+        });
+
+        it('rebinding same sequence should override previous', function() {
+            var spy1 = sinon.spy();
+            var spy2 = sinon.spy();
+            Mousetrap.bind('a b c', spy1);
+            Mousetrap.bind('a b c', spy2);
+
+            KeyEvent.simulate('a'.charCodeAt(0), 65);
+            KeyEvent.simulate('b'.charCodeAt(0), 66);
+            KeyEvent.simulate('c'.charCodeAt(0), 67);
+
+            expect(spy1.callCount).to.equal(0, 'first callback should not fire');
+            expect(spy2.callCount).to.equal(1, 'second callback should fire');
+        });
+
+        it('broken sequences', function() {
+            var spy = sinon.spy();
+            Mousetrap.bind('h a t', spy);
+
+            KeyEvent.simulate('h'.charCodeAt(0), 72);
+            KeyEvent.simulate('e'.charCodeAt(0), 69);
+            KeyEvent.simulate('a'.charCodeAt(0), 65);
+            KeyEvent.simulate('r'.charCodeAt(0), 82);
+            KeyEvent.simulate('t'.charCodeAt(0), 84);
+
+            expect(spy.callCount).to.equal(0, 'sequence for "h a t" should not fire for "h e a r t"');
+        });
+
+        it('sequences containing combos should work', function() {
+            var spy = sinon.spy();
+            Mousetrap.bind('a ctrl+b', spy);
+
+            KeyEvent.simulate('a'.charCodeAt(0), 65);
+            KeyEvent.simulate('B'.charCodeAt(0), 66, ['ctrl']);
+
+            expect(spy.callCount).to.equal(1, '"a ctrl+b" should fire');
+
+            Mousetrap.unbind('a ctrl+b');
+
+            spy = sinon.spy();
+            Mousetrap.bind('ctrl+b a', spy);
+
+            KeyEvent.simulate('b'.charCodeAt(0), 66, ['ctrl']);
+            KeyEvent.simulate('a'.charCodeAt(0), 65);
+
+            expect(spy.callCount).to.equal(1, '"ctrl+b a" should fire');
+        });
+
+        it('sequences starting with spacebar should work', function() {
+            var spy = sinon.spy();
+            Mousetrap.bind('a space b c', spy);
+
+            KeyEvent.simulate('a'.charCodeAt(0), 65);
+            KeyEvent.simulate(32, 32);
+            KeyEvent.simulate('b'.charCodeAt(0), 66);
+            KeyEvent.simulate('c'.charCodeAt(0), 67);
+
+            expect(spy.callCount).to.equal(1, '"a space b c" should fire');
+        });
+
+        it('konami code', function() {
+            var spy = sinon.spy();
+            Mousetrap.bind('up up down down left right left right b a enter', spy);
+
+            KeyEvent.simulate(0, 38);
+            KeyEvent.simulate(0, 38);
+            KeyEvent.simulate(0, 40);
+            KeyEvent.simulate(0, 40);
+            KeyEvent.simulate(0, 37);
+            KeyEvent.simulate(0, 39);
+            KeyEvent.simulate(0, 37);
+            KeyEvent.simulate(0, 39);
+            KeyEvent.simulate('b'.charCodeAt(0), 66);
+            KeyEvent.simulate('a'.charCodeAt(0), 65);
+            KeyEvent.simulate(0, 13);
+
+            expect(spy.callCount).to.equal(1, 'konami code should fire');
+        });
+
+        it('sequence timer resets', function() {
+            var spy = sinon.spy();
+            var clock = sinon.useFakeTimers();
+
+            Mousetrap.bind('h a t', spy);
+
+            KeyEvent.simulate('h'.charCodeAt(0), 72);
+            clock.tick(600);
+            KeyEvent.simulate('a'.charCodeAt(0), 65);
+            clock.tick(900);
+            KeyEvent.simulate('t'.charCodeAt(0), 84);
+
+            expect(spy.callCount).to.equal(1, 'sequence should fire after waiting');
+            clock.restore();
+        });
+
+        it('sequences timeout', function() {
+            var spy = sinon.spy();
+            var clock = sinon.useFakeTimers();
+
+            Mousetrap.bind('g t', spy);
+            KeyEvent.simulate('g'.charCodeAt(0), 71);
+            clock.tick(1000);
+            KeyEvent.simulate('t'.charCodeAt(0), 84);
+
+            expect(spy.callCount).to.equal(0, 'sequence callback should not fire');
+            clock.restore();
+        });
+    });
+
+    describe('default actions', function() {
+        var keys = {
+            keypress: [
+                ['a', 65],
+                ['A', 65, ['shift']],
+                ['7', 55],
+                ['?', 191],
+                ['*', 56],
+                ['+', 187],
+                ['$', 52],
+                ['[', 219],
+                ['.', 190]
+            ],
+            keydown: [
+                ['shift+\'', 222, ['shift']],
+                ['shift+a', 65, ['shift']],
+                ['shift+5', 53, ['shift']],
+                ['command+shift+p', 80, ['meta', 'shift']],
+                ['space', 32],
+                ['left', 37]
+            ]
+        };
+
+        function getCallback(key, keyCode, type, modifiers) {
+            return function() {
+                var spy = sinon.spy();
+                Mousetrap.bind(key, spy);
+
+                KeyEvent.simulate(key.charCodeAt(0), keyCode, modifiers);
+                expect(spy.callCount).to.equal(1);
+                expect(spy.args[0][0].type).to.equal(type);
+            };
+        }
+
+        for (var type in keys) {
+            for (var i = 0; i < keys[type].length; i++) {
+                var key = keys[type][i][0];
+                var keyCode = keys[type][i][1];
+                var modifiers = keys[type][i][2] || [];
+                it('"' + key + '" uses "' + type + '"', getCallback(key, keyCode, type, modifiers));
+            }
+        }
+    });
+});
+
+describe('Mousetrap.unbind', function() {
+    it('unbind works', function() {
+        var spy = sinon.spy();
+        Mousetrap.bind('a', spy);
+        KeyEvent.simulate('a'.charCodeAt(0), 65);
+        expect(spy.callCount).to.equal(1, 'callback for a should fire');
+
+        Mousetrap.unbind('a');
+        KeyEvent.simulate('a'.charCodeAt(0), 65);
+        expect(spy.callCount).to.equal(1, 'callback for a should not fire after unbind');
+    });
+
+    it('unbind accepts an array', function() {
+        var spy = sinon.spy();
+        Mousetrap.bind(['a', 'b', 'c'], spy);
+        KeyEvent.simulate('a'.charCodeAt(0), 65);
+        KeyEvent.simulate('b'.charCodeAt(0), 66);
+        KeyEvent.simulate('c'.charCodeAt(0), 67);
+        expect(spy.callCount).to.equal(3, 'callback should have fired 3 times');
+
+        Mousetrap.unbind(['a', 'b', 'c']);
+        KeyEvent.simulate('a'.charCodeAt(0), 65);
+        KeyEvent.simulate('b'.charCodeAt(0), 66);
+        KeyEvent.simulate('c'.charCodeAt(0), 67);
+        expect(spy.callCount).to.equal(3, 'callback should not fire after unbind');
+    });
+});
+
+describe('wrapping a specific element', function() {
+    var form = document.querySelector('form');
+    var textarea = form.querySelector('textarea');
+
+    it('z key fires when pressing z in the target element', function() {
+        var spy = sinon.spy();
+
+        Mousetrap(form).bind('z', spy);
+
+        KeyEvent.simulate('Z'.charCodeAt(0), 90, [], form);
+
+        expect(spy.callCount).to.equal(1, 'callback should fire once');
+        expect(spy.args[0][0]).to.be.an.instanceOf(Event, 'first argument should be Event');
+        expect(spy.args[0][1]).to.equal('z', 'second argument should be key combo');
+    });
+
+    it('z key fires when pressing z in a child of the target element', function() {
+        var spy = sinon.spy();
+
+        Mousetrap(form).bind('z', spy);
+
+        KeyEvent.simulate('Z'.charCodeAt(0), 90, [], textarea);
+
+        expect(spy.callCount).to.equal(1, 'callback should fire once');
+        expect(spy.args[0][0]).to.be.an.instanceOf(Event, 'first argument should be Event');
+        expect(spy.args[0][1]).to.equal('z', 'second argument should be key combo');
+    });
+
+    it('z key does not fire when pressing z outside the target element', function() {
+        var spy = sinon.spy();
+
+        Mousetrap(textarea).bind('z', spy);
+
+        KeyEvent.simulate('Z'.charCodeAt(0), 90);
+
+        expect(spy.callCount).to.equal(0, 'callback should not have fired');
+    });
+
+    it('should work when constructing a new mousetrap object', function() {
+        var spy = sinon.spy();
+
+        var mousetrap = new Mousetrap(form);
+        mousetrap.bind('a', spy);
+
+        KeyEvent.simulate('a'.charCodeAt(0), 65, [], textarea);
+
+        expect(spy.callCount).to.equal(1, 'callback should fire once');
+        expect(spy.args[0][0]).to.be.an.instanceOf(Event, 'first argument should be Event');
+        expect(spy.args[0][1]).to.equal('a', 'second argument should be key combo');
+    });
+
+    it('should allow you to create an empty mousetrap constructor', function() {
+        var spy = sinon.spy();
+
+        var mousetrap = new Mousetrap();
+        mousetrap.bind('a', spy);
+
+        KeyEvent.simulate('a'.charCodeAt(0), 65);
+
+        expect(spy.callCount).to.equal(1, 'callback should fire once');
+        expect(spy.args[0][0]).to.be.an.instanceOf(Event, 'first argument should be Event');
+        expect(spy.args[0][1]).to.equal('a', 'second argument should be key combo');
+    });
+});