384 lines
8.4 KiB
JavaScript
384 lines
8.4 KiB
JavaScript
module("deferred", { teardown: moduleTeardown });
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jQuery.each( [ "", " - new operator" ], function( _, withNew ) {
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function createDeferred() {
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return withNew ? new jQuery._Deferred() : jQuery._Deferred();
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}
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test("jQuery._Deferred" + withNew, function() {
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expect( 11 );
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var deferred,
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object,
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test;
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deferred = createDeferred();
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test = false;
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deferred.done( function( value ) {
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equals( value , "value" , "Test pre-resolve callback" );
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test = true;
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} );
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deferred.resolve( "value" );
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ok( test , "Test pre-resolve callbacks called right away" );
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test = false;
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deferred.done( function( value ) {
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equals( value , "value" , "Test post-resolve callback" );
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test = true;
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} );
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ok( test , "Test post-resolve callbacks called right away" );
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deferred.cancel();
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test = true;
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deferred.done( function() {
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ok( false , "Cancel was ignored" );
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test = false;
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} );
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ok( test , "Test cancel" );
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deferred = createDeferred().resolve();
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try {
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deferred.done( function() {
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throw "Error";
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} , function() {
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ok( true , "Test deferred do not cancel on exception" );
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} );
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} catch( e ) {
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strictEqual( e , "Error" , "Test deferred propagates exceptions");
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deferred.done();
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}
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test = "";
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deferred = createDeferred().done( function() {
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test += "A";
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}, function() {
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test += "B";
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} ).resolve();
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strictEqual( test , "AB" , "Test multiple done parameters" );
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test = "";
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deferred.done( function() {
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deferred.done( function() {
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test += "C";
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} );
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test += "A";
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}, function() {
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test += "B";
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} );
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strictEqual( test , "ABC" , "Test done callbacks order" );
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deferred = createDeferred();
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deferred.resolveWith( jQuery , [ document ] ).done( function( doc ) {
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ok( this === jQuery && arguments.length === 1 && doc === document , "Test fire context & args" );
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});
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// #8421
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deferred = createDeferred();
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deferred.resolveWith().done(function() {
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ok( true, "Test resolveWith can be called with no argument" );
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});
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});
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} );
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jQuery.each( [ "", " - new operator" ], function( _, withNew ) {
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function createDeferred( fn ) {
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return withNew ? new jQuery.Deferred( fn ) : jQuery.Deferred( fn );
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}
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test("jQuery.Deferred" + withNew, function() {
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expect( 8 );
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createDeferred().resolve().then( function() {
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ok( true , "Success on resolve" );
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ok( this.isResolved(), "Deferred is resolved" );
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}, function() {
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ok( false , "Error on resolve" );
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}).always( function() {
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ok( true , "Always callback on resolve" );
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});
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createDeferred().reject().then( function() {
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ok( false , "Success on reject" );
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}, function() {
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ok( true , "Error on reject" );
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ok( this.isRejected(), "Deferred is rejected" );
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}).always( function() {
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ok( true , "Always callback on reject" );
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});
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createDeferred( function( defer ) {
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ok( this === defer , "Defer passed as this & first argument" );
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this.resolve( "done" );
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}).then( function( value ) {
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strictEqual( value , "done" , "Passed function executed" );
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});
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});
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} );
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test( "jQuery.Deferred.pipe - filtering (done)", function() {
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expect(4);
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var defer = jQuery.Deferred(),
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piped = defer.pipe(function( a, b ) {
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return a * b;
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}),
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value1,
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value2,
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value3;
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piped.done(function( result ) {
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value3 = result;
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});
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defer.done(function( a, b ) {
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value1 = a;
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value2 = b;
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});
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defer.resolve( 2, 3 );
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strictEqual( value1, 2, "first resolve value ok" );
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strictEqual( value2, 3, "second resolve value ok" );
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strictEqual( value3, 6, "result of filter ok" );
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jQuery.Deferred().reject().pipe(function() {
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ok( false, "pipe should not be called on reject" );
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});
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jQuery.Deferred().resolve().pipe( jQuery.noop ).done(function( value ) {
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strictEqual( value, undefined, "pipe done callback can return undefined/null" );
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});
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});
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test( "jQuery.Deferred.pipe - filtering (fail)", function() {
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expect(4);
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var defer = jQuery.Deferred(),
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piped = defer.pipe( null, function( a, b ) {
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return a * b;
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} ),
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value1,
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value2,
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value3;
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piped.fail(function( result ) {
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value3 = result;
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});
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defer.fail(function( a, b ) {
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value1 = a;
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value2 = b;
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});
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defer.reject( 2, 3 );
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strictEqual( value1, 2, "first reject value ok" );
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strictEqual( value2, 3, "second reject value ok" );
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strictEqual( value3, 6, "result of filter ok" );
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jQuery.Deferred().resolve().pipe( null, function() {
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ok( false, "pipe should not be called on resolve" );
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} );
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jQuery.Deferred().reject().pipe( null, jQuery.noop ).fail(function( value ) {
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strictEqual( value, undefined, "pipe fail callback can return undefined/null" );
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});
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});
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test( "jQuery.Deferred.pipe - deferred (done)", function() {
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expect(3);
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var defer = jQuery.Deferred(),
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piped = defer.pipe(function( a, b ) {
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return jQuery.Deferred(function( defer ) {
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defer.reject( a * b );
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});
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}),
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value1,
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value2,
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value3;
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piped.fail(function( result ) {
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value3 = result;
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});
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defer.done(function( a, b ) {
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value1 = a;
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value2 = b;
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});
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defer.resolve( 2, 3 );
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strictEqual( value1, 2, "first resolve value ok" );
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strictEqual( value2, 3, "second resolve value ok" );
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strictEqual( value3, 6, "result of filter ok" );
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});
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test( "jQuery.Deferred.pipe - deferred (fail)", function() {
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expect(3);
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var defer = jQuery.Deferred(),
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piped = defer.pipe( null, function( a, b ) {
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return jQuery.Deferred(function( defer ) {
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defer.resolve( a * b );
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});
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} ),
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value1,
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value2,
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value3;
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piped.done(function( result ) {
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value3 = result;
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});
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defer.fail(function( a, b ) {
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value1 = a;
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value2 = b;
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});
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defer.reject( 2, 3 );
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strictEqual( value1, 2, "first reject value ok" );
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strictEqual( value2, 3, "second reject value ok" );
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strictEqual( value3, 6, "result of filter ok" );
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});
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test( "jQuery.Deferred.pipe - context", function() {
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expect(4);
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var context = {};
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jQuery.Deferred().resolveWith( context, [ 2 ] ).pipe(function( value ) {
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return value * 3;
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}).done(function( value ) {
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strictEqual( this, context, "custom context correctly propagated" );
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strictEqual( value, 6, "proper value received" );
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});
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var defer = jQuery.Deferred(),
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piped = defer.pipe(function( value ) {
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return value * 3;
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});
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defer.resolve( 2 );
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piped.done(function( value ) {
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strictEqual( this.promise(), piped, "default context gets updated to latest defer in the chain" );
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strictEqual( value, 6, "proper value received" );
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});
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});
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test( "jQuery.when" , function() {
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expect( 23 );
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// Some other objects
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jQuery.each( {
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"an empty string": "",
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"a non-empty string": "some string",
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"zero": 0,
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"a number other than zero": 1,
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"true": true,
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"false": false,
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"null": null,
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"undefined": undefined,
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"a plain object": {}
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} , function( message , value ) {
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ok( jQuery.isFunction( jQuery.when( value ).done(function( resolveValue ) {
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strictEqual( resolveValue , value , "Test the promise was resolved with " + message );
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}).promise ) , "Test " + message + " triggers the creation of a new Promise" );
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} );
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ok( jQuery.isFunction( jQuery.when().done(function( resolveValue ) {
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strictEqual( resolveValue , undefined , "Test the promise was resolved with no parameter" );
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}).promise ) , "Test calling when with no parameter triggers the creation of a new Promise" );
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var cache, i;
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for( i = 1 ; i < 4 ; i++ ) {
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jQuery.when( cache || jQuery.Deferred( function() {
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this.resolve( i );
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}) ).done(function( value ) {
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strictEqual( value , 1 , "Function executed" + ( i > 1 ? " only once" : "" ) );
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cache = value;
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});
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}
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});
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test("jQuery.when - joined", function() {
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expect(25);
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var deferreds = {
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value: 1,
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success: jQuery.Deferred().resolve( 1 ),
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error: jQuery.Deferred().reject( 0 ),
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futureSuccess: jQuery.Deferred(),
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futureError: jQuery.Deferred()
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},
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willSucceed = {
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value: true,
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success: true,
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error: false,
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futureSuccess: true,
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futureError: false
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};
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jQuery.each( deferreds, function( id1, defer1 ) {
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jQuery.each( deferreds, function( id2, defer2 ) {
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var shouldResolve = willSucceed[ id1 ] && willSucceed[ id2 ],
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expected = shouldResolve ? [ 1, 1 ] : [ 0, undefined ],
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code = id1 + "/" + id2;
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jQuery.when( defer1, defer2 ).done(function( a, b ) {
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if ( shouldResolve ) {
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same( [ a, b ], expected, code + " => resolve" );
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}
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}).fail(function( a, b ) {
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if ( !shouldResolve ) {
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same( [ a, b ], expected, code + " => resolve" );
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}
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});
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} );
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} );
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deferreds.futureSuccess.resolve( 1 );
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deferreds.futureError.reject( 0 );
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});
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