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( function() {
// Can't test what ain't there
if ( !jQuery.fx ) {
return;
}
var oldRaf = window.requestAnimationFrame;
module( "tween", {
setup: function() {
window.requestAnimationFrame = null;
this.sandbox = sinon.sandbox.create();
this.clock = this.sandbox.useFakeTimers( 505877050 );
this._oldInterval = jQuery.fx.interval;
jQuery.fx.step = {};
jQuery.fx.interval = 10;
jQuery.now = Date.now;
},
teardown: function() {
this.sandbox.restore();
jQuery.now = Date.now;
jQuery.fx.stop();
jQuery.fx.interval = this._oldInterval;
window.requestAnimationFrame = oldRaf;
return moduleTeardown.apply( this, arguments );
}
} );
test( "jQuery.Tween - Default propHooks on plain objects", function() {
expect( 8 );
var propHooks, defaultHook, testObject, fakeTween, stepSpy;
propHooks = jQuery.Tween.propHooks;
equal( typeof propHooks, "object", "jQuery.Tween.propHooks exists" );
defaultHook = propHooks._default;
ok( defaultHook, "_default propHook exists" );
testObject = { test: 0 };
fakeTween = { elem: testObject, prop: "test", now: 10, unit: "px" };
equal( defaultHook.get( fakeTween ), 0, "Can get property of object" );
fakeTween.prop = "testMissing";
equal( defaultHook.get( fakeTween ), undefined, "Can get missing property on object" );
defaultHook.set( fakeTween );
equal( testObject.testMissing, 10, "Sets missing value properly on plain object" );
fakeTween.prop = "opacity";
defaultHook.set( fakeTween );
equal( testObject.opacity, 10, "Correctly set opacity on plain object" );
fakeTween.prop = "test";
stepSpy = jQuery.fx.step.test = this.sandbox.spy();
defaultHook.set( fakeTween );
ok( stepSpy.calledWith( fakeTween ), "Step function called with Tween" );
equal( testObject.test, 0, "Because step didn't set, value is unchanged" );
} );
test( "jQuery.Tween - Default propHooks on elements", function() {
expect( 19 );
var propHooks, defaultHook, testElement, fakeTween, cssStub, styleStub, stepSpy;
propHooks = jQuery.Tween.propHooks;
equal( typeof propHooks, "object", "jQuery.Tween.propHooks exists" );
defaultHook = propHooks._default;
ok( defaultHook, "_default propHook exists" );
testElement = jQuery( "<div>" )[ 0 ];
fakeTween = { elem: testElement, prop: "height", now: 10, unit: "px" };
cssStub = this.sandbox.stub( jQuery, "css" ).returns( 10 );
equal( defaultHook.get( fakeTween ), 10, "Gets expected style value" );
ok( cssStub.calledWith( testElement, "height", "" ), "Calls jQuery.css correctly" );
fakeTween.prop = "testOpti";
testElement.testOpti = 15;
cssStub.reset();
equal( defaultHook.get( fakeTween ), 15, "Gets expected value not defined on style" );
equal( cssStub.callCount, 0, "Did not call jQuery.css" );
fakeTween.prop = "testMissing";
equal( defaultHook.get( fakeTween ), 10, "Can get missing property on element" );
ok( cssStub.calledWith( testElement, "testMissing", "" ), "...using jQuery.css" );
cssStub.returns( "" );
equal( defaultHook.get( fakeTween ), 0, "Uses 0 for empty string" );
cssStub.returns( "auto" );
equal( defaultHook.get( fakeTween ), 0, "Uses 0 for 'auto'" );
cssStub.returns( null );
equal( defaultHook.get( fakeTween ), 0, "Uses 0 for null" );
cssStub.returns( undefined );
equal( defaultHook.get( fakeTween ), 0, "Uses 0 for undefined" );
cssStub.reset();
// Setters
styleStub = this.sandbox.stub( jQuery, "style" );
fakeTween.prop = "height";
defaultHook.set( fakeTween );
ok( styleStub.calledWith( testElement, "height", "10px" ),
"Calls jQuery.style with elem, prop, now+unit" );
styleStub.reset();
fakeTween.prop = "testMissing";
defaultHook.set( fakeTween );
equal( styleStub.callCount, 0, "Did not call jQuery.style for non css property" );
equal( testElement.testMissing, 10, "Instead, set value on element directly" );
jQuery.cssHooks.testMissing = jQuery.noop;
fakeTween.now = 11;
defaultHook.set( fakeTween );
delete jQuery.cssHooks.testMissing;
ok( styleStub.calledWith( testElement, "testMissing", "11px" ),
"Presence of cssHooks causes jQuery.style with elem, prop, now+unit" );
equal( testElement.testMissing, 10, "And value was unchanged" );
stepSpy = jQuery.fx.step.test = this.sandbox.spy();
styleStub.reset();
fakeTween.prop = "test";
defaultHook.set( fakeTween );
ok( stepSpy.calledWith( fakeTween ), "Step function called with Tween" );
equal( styleStub.callCount, 0, "Did not call jQuery.style" );
} );
test( "jQuery.Tween - Plain Object", function() {
expect( 13 );
var testObject = { test: 100 },
testOptions = { duration: 100 },
tween, easingSpy;
tween = jQuery.Tween( testObject, testOptions, "test", 0, "linear" );
equal( tween.elem, testObject, "Sets .element" );
equal( tween.options, testOptions, "sets .options" );
equal( tween.prop, "test", "sets .prop" );
equal( tween.end, 0, "sets .end" );
equal( tween.easing, "linear", "sets .easing when provided" );
equal( tween.start, 100, "Reads .start value during construction" );
equal( tween.now, 100, "Reads .now value during construction" );
easingSpy = this.sandbox.spy( jQuery.easing, "linear" );
equal( tween.run( 0.1 ), tween, ".run() returns this" );
equal( tween.now, 90, "Calculated tween" );
ok( easingSpy.calledWith( 0.1, 0.1 * testOptions.duration, 0, 1, testOptions.duration ),
"...using jQuery.easing.linear with back-compat arguments" );
equal( testObject.test, 90, "Set value" );
tween.run( 1 );
equal( testObject.test, 0, "Checking another value" );
tween.run( 0 );
equal( testObject.test, 100, "Can even go back in time" );
} );
test( "jQuery.Tween - Element", function() {
expect( 15 );
var testElement = jQuery( "<div>" ).css( "height", 100 )[ 0 ],
testOptions = { duration: 100 },
tween, easingSpy, eased;
tween = jQuery.Tween( testElement, testOptions, "height", 0 );
equal( tween.elem, testElement, "Sets .element" );
equal( tween.options, testOptions, "sets .options" );
equal( tween.prop, "height", "sets .prop" );
equal( tween.end, 0, "sets .end" );
equal( tween.easing, jQuery.easing._default, "sets .easing to default when not provided" );
equal( tween.unit, "px", "sets .unit to px when not provided" );
equal( tween.start, 100, "Reads .start value during construction" );
equal( tween.now, 100, "Reads .now value during construction" );
easingSpy = this.sandbox.spy( jQuery.easing, "swing" );
equal( tween.run( 0.1 ), tween, ".run() returns this" );
equal( tween.pos, jQuery.easing.swing( 0.1 ), "set .pos" );
eased = 100 - ( jQuery.easing.swing( 0.1 ) * 100 );
equal( tween.now, eased, "Calculated tween" );
ok( easingSpy.calledWith( 0.1, 0.1 * testOptions.duration, 0, 1, testOptions.duration ),
"...using jQuery.easing.linear with back-compat arguments" );
equal( parseFloat( testElement.style.height ).toFixed( 5 ), eased.toFixed( 5 ), "Set value" );
tween.run( 1 );
equal( testElement.style.height, "0px", "Checking another value" );
tween.run( 0 );
equal( testElement.style.height, "100px", "Can even go back in time" );
} );
test( "jQuery.Tween - No duration", function() {
expect( 3 );
var testObject = { test: 100 },
testOptions = { duration: 0 },
tween, easingSpy;
tween = jQuery.Tween( testObject, testOptions, "test", 0 );
easingSpy = this.sandbox.spy( jQuery.easing, "swing" );
tween.run( 0.5 );
equal( tween.pos, 0.5, "set .pos correctly" );
equal( testObject.test, 50, "set value on object correctly" );
equal( easingSpy.callCount, 0, "didn't ease the value" );
} );
test( "jQuery.Tween - step function option", function() {
expect( 4 );
var testObject = { test: 100 },
testOptions = { duration: 100, step: this.sandbox.spy() },
tween, propHookSpy;
propHookSpy = this.sandbox.spy( jQuery.Tween.propHooks._default, "set" );
tween = jQuery.Tween( testObject, testOptions, "test", 0, "linear" );
equal( testOptions.step.callCount, 0, "didn't call step on create" );
tween.run( 0.5 );
ok( testOptions.step.calledOn( testObject ),
"Called step function in context of animated object" );
ok( testOptions.step.calledWith( 50, tween ), "Called step function with correct parameters" );
ok( testOptions.step.calledBefore( propHookSpy ),
"Called step function before calling propHook.set" );
} );
test( "jQuery.Tween - custom propHooks", function() {
expect( 3 );
var testObject = {},
testOptions = { duration: 100, step: this.sandbox.spy() },
propHook = {
get: sinon.stub().returns( 100 ),
set: sinon.stub()
},
tween;
jQuery.Tween.propHooks.testHooked = propHook;
tween = jQuery.Tween( testObject, testOptions, "testHooked", 0, "linear" );
ok( propHook.get.calledWith( tween ), "called propHook.get on create" );
equal( tween.now, 100, "Used return value from propHook.get" );
tween.run( 0.5 );
ok( propHook.set.calledWith( tween ), "Called propHook.set function with correct parameters" );
delete jQuery.Tween.propHooks.testHooked;
} );
test( "jQuery.Tween - custom propHooks - advanced values", function() {
expect( 5 );
var testObject = {},
testOptions = { duration: 100, step: this.sandbox.spy() },
propHook = {
get: sinon.stub().returns( [ 0, 0 ] ),
set: sinon.spy()
},
tween;
jQuery.Tween.propHooks.testHooked = propHook;
tween = jQuery.Tween( testObject, testOptions, "testHooked", [ 1, 1 ], "linear" );
ok( propHook.get.calledWith( tween ), "called propHook.get on create" );
deepEqual( tween.start, [ 0, 0 ], "Used return value from get" );
tween.run( 0.5 );
// Some day this NaN assumption might change - perhaps add a "calc" helper to the hooks?
ok( isNaN( tween.now ), "Used return value from propHook.get" );
equal( tween.pos, 0.5, "But the eased percent is still avaliable" );
ok( propHook.set.calledWith( tween ), "Called propHook.set function with correct parameters" );
delete jQuery.Tween.propHooks.testHooked;
} );
} )();
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