ok( true, "Test malformed JSON string." );
}
});
+
+test("jQuery._deferred()", function() {
+
+ expect( 14 );
+
+ var deferred,
+ object,
+ test;
+
+ deferred = jQuery._deferred();
+
+ test = false;
+
+ deferred.then( function( value ) {
+ equals( value , "value" , "Test pre-resolve callback" );
+ test = true;
+ } );
+
+ deferred.resolve( "value" );
+
+ ok( test , "Test pre-resolve callbacks called right away" );
+
+ test = false;
+
+ deferred.then( function( value ) {
+ equals( value , "value" , "Test post-resolve callback" );
+ test = true;
+ } );
+
+ ok( test , "Test post-resolve callbacks called right away" );
+
+ deferred.cancel();
+
+ test = true;
+
+ deferred.then( function() {
+ ok( false , "Manual cancel was ignored" );
+ test = false;
+ } );
+
+ ok( test , "Test manual cancel" );
+
+ deferred = jQuery._deferred().then( function() {
+ return false;
+ } );
+
+ deferred.resolve();
+
+ test = true;
+
+ deferred.then( function() {
+ test = false;
+ } );
+
+ ok( test , "Test cancel by returning false" );
+
+ try {
+ deferred = jQuery._deferred().resolve().then( function() {
+ throw "Error";
+ } , function() {
+ ok( false , "Test deferred cancel on exception" );
+ } );
+ } catch( e ) {
+ strictEqual( e , "Error" , "Test deferred propagates exceptions");
+ deferred.then();
+ }
+
+ test = "";
+ deferred = jQuery._deferred().then( function() {
+
+ test += "A";
+
+ }, function() {
+
+ test += "B";
+
+ } ).resolve();
+
+ strictEqual( test , "AB" , "Test multiple then parameters" );
+
+ test = "";
+
+ deferred.then( function() {
+
+ deferred.then( function() {
+
+ test += "C";
+
+ } );
+
+ test += "A";
+
+ }, function() {
+
+ test += "B";
+ } );
+
+ strictEqual( test , "ABC" , "Test then callbacks order" );
+
+ deferred = jQuery._deferred( false ).resolve().cancel();
+
+ deferred.then( function() {
+ ok( true , "Test non-cancellable deferred not cancelled manually");
+ return false;
+ } );
+
+ deferred.then( function() {
+ ok( true , "Test non-cancellable deferred not cancelled by returning false");
+ } );
+
+ try {
+ deferred.then( function() {
+ throw "Error";
+ } , function() {
+ ok( true , "Test non-cancellable deferred keeps callbacks after exception" );
+ } );
+ } catch( e ) {
+ strictEqual( e , "Error" , "Test non-cancellable deferred propagates exceptions");
+ deferred.then();
+ }
+
+ deferred = jQuery._deferred();
+
+ deferred.fire( jQuery , [ document ] ).then( function( doc ) {
+ ok( this === jQuery && arguments.length === 1 && doc === document , "Test fire context & args" );
+ });
+});
+
+test("jQuery.deferred()", function() {
+
+ expect( 8 );
+
+ jQuery.deferred( function( defer ) {
+ strictEqual( this , defer , "Defer passed as this & first argument" );
+ this.resolve( "done" );
+ }).then( function( value ) {
+ strictEqual( value , "done" , "Passed function executed" );
+ });
+
+ jQuery.deferred().resolve().then( function() {
+ ok( true , "Success on resolve" );
+ }).fail( function() {
+ ok( false , "Error on resolve" );
+ });
+
+ jQuery.deferred().reject().then( function() {
+ ok( false , "Success on reject" );
+ }).fail( function() {
+ ok( true , "Error on reject" );
+ });
+
+ var flag = true;
+
+ jQuery.deferred().resolve().cancel().then( function() {
+ ok( flag = false , "Success on resolve/cancel" );
+ }).fail( function() {
+ ok( flag = false , "Error on resolve/cancel" );
+ });
+
+ ok( flag , "Cancel on resolve" );
+
+ flag = true;
+
+ jQuery.deferred().reject().cancel().then( function() {
+ ok( flag = false , "Success on reject/cancel" );
+ }).fail( function() {
+ ok( flag = false , "Error on reject/cancel" );
+ });
+
+ ok( flag , "Cancel on reject" );
+
+ jQuery.deferred( false ).resolve().then( function() {
+ return false;
+ } , function() {
+ ok( true , "Not cancelled on resolve" );
+ });
+
+ jQuery.deferred( false ).reject().fail( function() {
+ return false;
+ } , function() {
+ ok( true , "Not cancelled on reject" );
+ });
+
+});
+
+test("jQuery.isDeferred()", function() {
+
+ expect( 11 );
+
+ var object1 = { then: function() { return this; } },
+ object2 = { then: function() { return this; } };
+
+ object2.then._ = [];
+
+ // The use case that we want to match
+ ok(jQuery.isDeferred(jQuery._deferred()), "Simple deferred");
+ ok(jQuery.isDeferred(jQuery.deferred()), "Failable deferred");
+
+ // Some other objects
+ ok(!jQuery.isDeferred(object1), "Object with then & no marker");
+ ok(!jQuery.isDeferred(object2), "Object with then & marker");
+
+ // Not objects shouldn't be matched
+ ok(!jQuery.isDeferred(""), "string");
+ ok(!jQuery.isDeferred(0) && !jQuery.isDeferred(1), "number");
+ ok(!jQuery.isDeferred(true) && !jQuery.isDeferred(false), "boolean");
+ ok(!jQuery.isDeferred(null), "null");
+ ok(!jQuery.isDeferred(undefined), "undefined");
+
+ object1 = {custom: jQuery._deferred().then};
+
+ ok(!jQuery.isDeferred(object1) , "custom method name not found automagically");
+ ok(jQuery.isDeferred(object1,"custom") , "custom method name");
+});
+
+test("jQuery.when()", function() {
+
+ expect( 5 );
+
+ var cache, i, deferred = { done: jQuery.deferred().resolve( 1 ).then };
+
+ for( i = 1 ; i < 3 ; i++ ) {
+ jQuery.when( cache || jQuery.deferred( function() {
+ this.resolve( i );
+ }) ).then( function( value ) {
+ strictEqual( value , 1 , "Function executed" + ( i > 1 ? " only once" : "" ) );
+ cache = value;
+ }).fail( function() {
+ ok( false , "Fail called" );
+ });
+ }
+
+ cache = 0;
+
+ for( i = 1 ; i < 3 ; i++ ) {
+ jQuery.when( cache || deferred , "done" ).done( function( value ) {
+ strictEqual( value , 1 , "Custom method: resolved" + ( i > 1 ? " only once" : "" ) );
+ cache = value;
+ }).fail( function() {
+ ok( false , "Custom method: fail called" );
+ });
+ }
+
+ stop();
+
+ jQuery.when( jQuery( document ) , "ready" ).then( function( test ) {
+ strictEqual( test , jQuery , "jQuery.fn.ready recognized as a deferred" );
+ start();
+ });
+});
git.asbjorn.biz / jquery.git / blobdiff