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Revert "Deferred: Backwards-compatible standards interoperability"

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This reverts commit 555a50d340.
This commit is contained in:
Oleg Gaidarenko 2015-11-13 15:58:03 +03:00
parent f66490412a
commit 2d9d1f006a
5 changed files with 170 additions and 782 deletions
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4
Gruntfile.js
View File

@ -207,9 +207,7 @@ module.exports = function( grunt ) {
// jQuery on Windows. (see gh-2519)
grunt.registerTask( "test_fast", runJsdomTests ? [ "node_smoke_tests" ] : [] );
grunt.registerTask( "test", [ "test_fast" ].concat(
runJsdomTests ? [ "promises_aplus_tests" ] : []
) );
grunt.registerTask( "test", [ "test_fast" ] );
// Short list as a high frequency watch task
grunt.registerTask( "dev", [ "build:*:*", "lint", "uglify", "remove_map_comment", "dist:*" ] );

3
package.json
View File

@ -41,9 +41,6 @@
"gzip-js": "0.3.2",
"jsdom": "5.6.1",
"load-grunt-tasks": "1.0.0",
"native-promise-only": "0.7.8-a",
"promises-aplus-tests": "2.1.0",
"q": "1.1.2",
"qunitjs": "1.17.1",
"qunit-assert-step": "1.0.3",
"requirejs": "2.1.17",

261
src/deferred.js
View File

@ -4,26 +4,14 @@ define( [
"./callbacks"
], function( jQuery, slice ) {
function Identity( v ) {
return v;
}
function Thrower( ex ) {
throw ex;
}
jQuery.extend({
Deferred: function( func ) {
var tuples = [
// action, add listener, callbacks,
// ... .then handlers, argument index, [final state]
[ "notify", "progress", jQuery.Callbacks( "memory" ),
jQuery.Callbacks( "memory" ), 2 ],
[ "resolve", "done", jQuery.Callbacks( "once memory" ),
jQuery.Callbacks( "once memory" ), 0, "resolved" ],
[ "reject", "fail", jQuery.Callbacks( "once memory" ),
jQuery.Callbacks( "once memory" ), 1, "rejected" ]
// action, add listener, listener list, final state
[ "resolve", "done", jQuery.Callbacks("once memory"), "resolved" ],
[ "reject", "fail", jQuery.Callbacks("once memory"), "rejected" ],
[ "notify", "progress", jQuery.Callbacks("memory") ]
],
state = "pending",
promise = {
@ -34,20 +22,12 @@ jQuery.extend( {
deferred.done( arguments ).fail( arguments );
return this;
},
// Keep pipe for back-compat
pipe: function( /* fnDone, fnFail, fnProgress */ ) {
then: function( /* fnDone, fnFail, fnProgress */ ) {
var fns = arguments;
return jQuery.Deferred(function( newDefer ) {
jQuery.each( tuples, function( i, tuple ) {
// Map tuples (progress, done, fail) to arguments (done, fail, progress)
var fn = jQuery.isFunction( fns[ tuple[ 4 ] ] ) && fns[ tuple[ 4 ] ];
// deferred.progress(function() { bind to newDefer or newDefer.notify })
// deferred.done(function() { bind to newDefer or newDefer.resolve })
// deferred.fail(function() { bind to newDefer or newDefer.reject })
var fn = jQuery.isFunction( fns[ i ] ) && fns[ i ];
// deferred[ done | fail | progress ] for forwarding actions to newDefer
deferred[ tuple[1] ](function() {
var returned = fn && fn.apply( this, arguments );
if ( returned && jQuery.isFunction( returned.promise ) ) {
@ -66,162 +46,6 @@ jQuery.extend( {
fns = null;
} ).promise();
},
then: function( onFulfilled, onRejected, onProgress ) {
var maxDepth = 0;
function resolve( depth, deferred, handler, special ) {
return function() {
var that = this === promise ? undefined : this,
args = arguments,
mightThrow = function() {
var returned, then;
// Support: Promises/A+ section 2.3.3.3.3
// https://promisesaplus.com/#point-59
// Ignore double-resolution attempts
if ( depth < maxDepth ) {
return;
}
returned = handler.apply( that, args );
// Support: Promises/A+ section 2.3.1
// https://promisesaplus.com/#point-48
if ( returned === deferred.promise() ) {
throw new TypeError( "Thenable self-resolution" );
}
// Support: Promises/A+ sections 2.3.3.1, 3.5
// https://promisesaplus.com/#point-54
// https://promisesaplus.com/#point-75
// Retrieve `then` only once
then = returned &&
// Support: Promises/A+ section 2.3.4
// https://promisesaplus.com/#point-64
// Only check objects and functions for thenability
( typeof returned === "object" ||
typeof returned === "function" ) &&
returned.then;
// Handle a returned thenable
if ( jQuery.isFunction( then ) ) {
// Special processors (notify) just wait for resolution
if ( special ) {
then.call(
returned,
resolve( maxDepth, deferred, Identity, special ),
resolve( maxDepth, deferred, Thrower, special )
);
// Normal processors (resolve) also hook into progress
} else {
// ...and disregard older resolution values
maxDepth++;
then.call(
returned,
resolve( maxDepth, deferred, Identity, special ),
resolve( maxDepth, deferred, Thrower, special ),
resolve( maxDepth, deferred, Identity,
deferred.notify )
);
}
// Handle all other returned values
} else {
// Only substitue handlers pass on context
// and multiple values (non-spec behavior)
if ( handler !== Identity ) {
that = undefined;
args = [ returned ];
}
// Process the value(s)
// Default process is resolve
( special || deferred.resolveWith )(
that || deferred.promise(), args );
}
},
// Only normal processors (resolve) catch and reject exceptions
process = special ?
mightThrow :
function() {
try {
mightThrow();
} catch ( e ) {
// Support: Promises/A+ section 2.3.3.3.4.1
// https://promisesaplus.com/#point-61
// Ignore post-resolution exceptions
if ( depth + 1 >= maxDepth ) {
// Only substitue handlers pass on context
// and multiple values (non-spec behavior)
if ( handler !== Thrower ) {
that = undefined;
args = [ e ];
}
deferred.rejectWith( that || deferred.promise(),
args );
}
}
};
// Support: Promises/A+ section 2.3.3.3.1
// https://promisesaplus.com/#point-57
// Re-resolve promises immediately to dodge false rejection from
// subsequent errors
if ( depth ) {
process();
} else {
window.setTimeout( process );
}
};
}
return jQuery.Deferred( function( newDefer ) {
// progress_handlers.add( ... )
tuples[ 0 ][ 3 ].add(
resolve(
0,
newDefer,
jQuery.isFunction( onProgress ) ?
onProgress :
Identity,
newDefer.notifyWith
)
);
// fulfilled_handlers.add( ... )
tuples[ 1 ][ 3 ].add(
resolve(
0,
newDefer,
jQuery.isFunction( onFulfilled ) ?
onFulfilled :
Identity
)
);
// rejected_handlers.add( ... )
tuples[ 2 ][ 3 ].add(
resolve(
0,
newDefer,
jQuery.isFunction( onRejected ) ?
onRejected :
Thrower
)
);
} ).promise();
},
// Get a promise for this deferred
// If obj is provided, the promise aspect is added to the object
promise: function( obj ) {
@ -230,54 +54,34 @@ jQuery.extend( {
},
deferred = {};
// Keep pipe for back-compat
promise.pipe = promise.then;
// Add list-specific methods
jQuery.each( tuples, function( i, tuple ) {
var list = tuple[ 2 ],
stateString = tuple[ 5 ];
stateString = tuple[ 3 ];
// promise.progress = list.add
// promise.done = list.add
// promise.fail = list.add
// promise[ done | fail | progress ] = list.add
promise[ tuple[1] ] = list.add;
// Handle state
if ( stateString ) {
list.add(
function() {
// state = "resolved" (i.e., fulfilled)
// state = "rejected"
list.add(function() {
// state = [ resolved | rejected ]
state = stateString;
},
// rejected_callbacks.disable
// fulfilled_callbacks.disable
tuples[ 3 - i ][ 2 ].disable,
// progress_callbacks.lock
tuples[ 0 ][ 2 ].lock
);
// [ reject_list | resolve_list ].disable; progress_list.lock
}, tuples[ i ^ 1 ][ 2 ].disable, tuples[ 2 ][ 2 ].lock );
}
// progress_handlers.fire
// fulfilled_handlers.fire
// rejected_handlers.fire
list.add( tuple[ 3 ].fire );
// deferred.notify = function() { deferred.notifyWith(...) }
// deferred.resolve = function() { deferred.resolveWith(...) }
// deferred.reject = function() { deferred.rejectWith(...) }
// deferred[ resolve | reject | notify ]
deferred[ tuple[0] ] = function() {
deferred[ tuple[0] + "With" ]( this === deferred ? promise : this, arguments );
return this;
};
// deferred.notifyWith = list.fireWith
// deferred.resolveWith = list.fireWith
// deferred.rejectWith = list.fireWith
deferred[ tuple[0] + "With" ] = list.fireWith;
});
// Make the deferred a promise
promise.promise( deferred );
@ -292,8 +96,7 @@ jQuery.extend( {
// Deferred helper
when: function( subordinate /* , ..., subordinateN */ ) {
var method,
i = 0,
var i = 0,
resolveValues = slice.call( arguments ),
length = resolveValues.length,
@ -303,7 +106,7 @@ jQuery.extend( {
// the master Deferred.
// If resolveValues consist of only a single Deferred, just use that.
master = remaining === 1 ? subordinate : jQuery.Deferred(),
deferred = remaining === 1 ? subordinate : jQuery.Deferred(),
// Update function for both resolve and progress values
updateFunc = function( i, contexts, values ) {
@ -311,12 +114,13 @@ jQuery.extend( {
contexts[ i ] = this;
values[ i ] = arguments.length > 1 ? slice.call( arguments ) : value;
if ( values === progressValues ) {
master.notifyWith( contexts, values );
deferred.notifyWith( contexts, values );
} else if ( !( --remaining ) ) {
master.resolveWith( contexts, values );
deferred.resolveWith( contexts, values );
}
};
},
progressValues, progressContexts, resolveContexts;
// Add listeners to Deferred subordinates; treat others as resolved
@ -325,22 +129,11 @@ jQuery.extend( {
progressContexts = new Array( length );
resolveContexts = new Array( length );
for ( ; i < length; i++ ) {
if ( resolveValues[ i ] &&
jQuery.isFunction( ( method = resolveValues[ i ].promise ) ) ) {
method.call( resolveValues[ i ] )
if ( resolveValues[ i ] && jQuery.isFunction( resolveValues[ i ].promise ) ) {
resolveValues[ i ].promise()
.progress( updateFunc( i, progressContexts, progressValues ) )
.done( updateFunc( i, resolveContexts, resolveValues ) )
.fail( master.reject );
} else if ( resolveValues[ i ] &&
jQuery.isFunction( ( method = resolveValues[ i ].then ) ) ) {
method.call(
resolveValues[ i ],
updateFunc( i, resolveContexts, resolveValues ),
master.reject,
updateFunc( i, progressContexts, progressValues )
);
.fail( deferred.reject );
} else {
--remaining;
}
@ -349,10 +142,10 @@ jQuery.extend( {
// If we're not waiting on anything, resolve the master
if ( !remaining ) {
master.resolveWith( resolveContexts, resolveValues );
deferred.resolveWith( resolveContexts, resolveValues );
}
return master.promise();
return deferred.promise();
}
} );

1
test/index.html
View File

@ -15,7 +15,6 @@
<script src="../external/qunit/qunit.js"></script>
<script src="../external/qunit-assert-step/qunit-assert-step.js"></script>
<script src="../external/sinon/sinon-1.14.1.js"></script>
<script src="../external/npo/npo.js"></script>
<script src="../external/requirejs/require.js"></script>
<!-- See testinit for the list of tests -->
<script src="data/testinit.js"></script>

501
test/unit/deferred.js
View File

@ -14,7 +14,7 @@ jQuery.each( [ "", " - new operator" ], function( _, withNew ) {
var defer = createDeferred();
assert.ok( jQuery.isFunction( defer.pipe ), "defer.pipe is a function" );
assert.strictEqual( defer.pipe, defer.then, "pipe is an alias of then" );
createDeferred().resolve().done(function() {
assert.ok( true, "Success on resolve" );
@ -93,15 +93,13 @@ QUnit.test( "jQuery.Deferred - chainability", function( assert ) {
} );
QUnit.test( "jQuery.Deferred.then - filtering (done)", function( assert ) {
assert.expect( 4 );
var value1, value2, value3,
defer = jQuery.Deferred(),
piped = defer.then(function( a, b ) {
return a * b;
} ),
done = jQuery.map( new Array( 3 ), function() { return assert.async(); } );
});
piped.done(function( result ) {
value3 = result;
@ -112,71 +110,30 @@ QUnit.test( "jQuery.Deferred.then - filtering (done)", function( assert ) {
value2 = b;
});
defer.resolve( 2, 3 ).then( function() {
defer.resolve( 2, 3 );
assert.strictEqual( value1, 2, "first resolve value ok" );
assert.strictEqual( value2, 3, "second resolve value ok" );
assert.strictEqual( value3, 6, "result of filter ok" );
done.pop().call();
} );
jQuery.Deferred().reject().then(function() {
assert.ok( false, "then should not be called on reject" );
} ).then( null, done.pop() );
});
jQuery.Deferred().resolve().then( jQuery.noop ).done(function( value ) {
assert.strictEqual( value, undefined, "then done callback can return undefined/null" );
done.pop().call();
});
} );
QUnit.test( "jQuery.Deferred.then - filtering (fail)", function( assert ) {
assert.expect( 4 );
var value1, value2, value3,
defer = jQuery.Deferred(),
piped = defer.then( null, function( a, b ) {
return a * b;
} ),
done = jQuery.map( new Array( 3 ), function() { return assert.async(); } );
piped.done( function( result ) {
value3 = result;
});
defer.fail( function( a, b ) {
value1 = a;
value2 = b;
} );
defer.reject( 2, 3 ).then( null, function() {
assert.strictEqual( value1, 2, "first reject value ok" );
assert.strictEqual( value2, 3, "second reject value ok" );
assert.strictEqual( value3, 6, "result of filter ok" );
done.pop().call();
} );
jQuery.Deferred().resolve().then( null, function() {
assert.ok( false, "then should not be called on resolve" );
} ).then( done.pop() );
jQuery.Deferred().reject().then( null, jQuery.noop ).done( function( value ) {
assert.strictEqual( value, undefined, "then fail callback can return undefined/null" );
done.pop().call();
} );
} );
QUnit.test( "[PIPE ONLY] jQuery.Deferred.pipe - filtering (fail)", function( assert ) {
assert.expect( 4 );
var value1, value2, value3,
defer = jQuery.Deferred(),
piped = defer.pipe( null, function( a, b ) {
return a * b;
} ),
done = jQuery.map( new Array( 3 ), function() { return assert.async(); } );
piped.fail(function( result ) {
value3 = result;
});
@ -186,33 +143,29 @@ QUnit.test( "[PIPE ONLY] jQuery.Deferred.pipe - filtering (fail)", function( ass
value2 = b;
});
defer.reject( 2, 3 ).pipe( null, function() {
assert.strictEqual( value1, 2, "first reject value ok" );
assert.strictEqual( value2, 3, "second reject value ok" );
assert.strictEqual( value3, 6, "result of filter ok" );
done.pop().call();
defer.reject( 2, 3 );
strictEqual( value1, 2, "first reject value ok" );
strictEqual( value2, 3, "second reject value ok" );
strictEqual( value3, 6, "result of filter ok" );
jQuery.Deferred().resolve().then( null, function() {
ok( false, "then should not be called on resolve" );
});
jQuery.Deferred().resolve().pipe( null, function() {
assert.ok( false, "then should not be called on resolve" );
} ).then( done.pop() );
jQuery.Deferred().reject().pipe( null, jQuery.noop ).fail( function( value ) {
assert.strictEqual( value, undefined, "then fail callback can return undefined/null" );
done.pop().call();
jQuery.Deferred().reject().then( null, jQuery.noop ).fail(function( value ) {
strictEqual( value, undefined, "then fail callback can return undefined/null" );
});
});
QUnit.test( "jQuery.Deferred.then - filtering (progress)", function( assert ) {
assert.expect( 3 );
var value1, value2, value3,
defer = jQuery.Deferred(),
piped = defer.then( null, null, function( a, b ) {
return a * b;
} ),
done = assert.async();
} );
piped.progress( function( result ) {
value3 = result;
@ -223,16 +176,14 @@ QUnit.test( "jQuery.Deferred.then - filtering (progress)", function( assert ) {
value2 = b;
} );
defer.notify( 2, 3 ).then( null, null, function() {
defer.notify( 2, 3 );
assert.strictEqual( value1, 2, "first progress value ok" );
assert.strictEqual( value2, 3, "second progress value ok" );
assert.strictEqual( value3, 6, "result of filter ok" );
done();
} );
});
QUnit.test( "jQuery.Deferred.then - deferred (done)", function( assert ) {
assert.expect( 3 );
var value1, value2, value3,
@ -241,8 +192,7 @@ QUnit.test( "jQuery.Deferred.then - deferred (done)", function( assert ) {
return jQuery.Deferred( function( defer ) {
defer.reject( a * b );
} );
} ),
done = assert.async();
} );
piped.fail( function( result ) {
value3 = result;
@ -255,16 +205,12 @@ QUnit.test( "jQuery.Deferred.then - deferred (done)", function( assert ) {
defer.resolve( 2, 3 );
piped.fail( function() {
assert.strictEqual( value1, 2, "first resolve value ok" );
assert.strictEqual( value2, 3, "second resolve value ok" );
assert.strictEqual( value3, 6, "result of filter ok" );
done();
} );
});
QUnit.test( "jQuery.Deferred.then - deferred (fail)", function( assert ) {
assert.expect( 3 );
var value1, value2, value3,
@ -273,8 +219,7 @@ QUnit.test( "jQuery.Deferred.then - deferred (fail)", function( assert ) {
return jQuery.Deferred( function( defer ) {
defer.resolve( a * b );
} );
} ),
done = assert.async();
} );
piped.done( function( result ) {
value3 = result;
@ -287,16 +232,12 @@ QUnit.test( "jQuery.Deferred.then - deferred (fail)", function( assert ) {
defer.reject( 2, 3 );
piped.done( function() {
assert.strictEqual( value1, 2, "first reject value ok" );
assert.strictEqual( value2, 3, "second reject value ok" );
assert.strictEqual( value3, 6, "result of filter ok" );
done();
} );
});
QUnit.test( "jQuery.Deferred.then - deferred (progress)", function( assert ) {
assert.expect( 3 );
var value1, value2, value3,
@ -305,49 +246,7 @@ QUnit.test( "jQuery.Deferred.then - deferred (progress)", function( assert ) {
return jQuery.Deferred( function( defer ) {
defer.resolve( a * b );
} );
} ),
done = assert.async();
piped.progress( function( result ) {
return jQuery.Deferred().resolve().then( function() {
return result;
} ).then( function( result ) {
value3 = result;
} );
} );
defer.progress( function( a, b ) {
value1 = a;
value2 = b;
} );
defer.notify( 2, 3 );
piped.then( null, null, function( result ) {
return jQuery.Deferred().resolve().then( function() {
return result;
} ).then( function() {
assert.strictEqual( value1, 2, "first progress value ok" );
assert.strictEqual( value2, 3, "second progress value ok" );
assert.strictEqual( value3, 6, "result of filter ok" );
done();
} );
} );
} );
QUnit.test( "[PIPE ONLY] jQuery.Deferred.pipe - deferred (progress)", function( assert ) {
assert.expect( 3 );
var value1, value2, value3,
defer = jQuery.Deferred(),
piped = defer.pipe( null, null, function( a, b ) {
return jQuery.Deferred( function( defer ) {
defer.resolve( a * b );
} );
} ),
done = assert.async();
piped.done( function( result ) {
value3 = result;
} );
@ -359,36 +258,28 @@ QUnit.test( "[PIPE ONLY] jQuery.Deferred.pipe - deferred (progress)", function(
defer.notify( 2, 3 );
piped.done( function() {
assert.strictEqual( value1, 2, "first progress value ok" );
assert.strictEqual( value2, 3, "second progress value ok" );
assert.strictEqual( value3, 6, "result of filter ok" );
done();
} );
});
QUnit.test( "jQuery.Deferred.then - context", function( assert ) {
assert.expect( 7 );
var defer, piped, defer2, piped2,
context = {},
done = jQuery.map( new Array( 4 ), function() { return assert.async(); } );
context = {};
jQuery.Deferred().resolveWith( context, [ 2 ] ).then( function( value ) {
return value * 3;
} ).done(function( value ) {
assert.notStrictEqual( this, context, "custom context not propagated through .then" );
assert.strictEqual( this, context, "custom context correctly propagated" );
assert.strictEqual( value, 6, "proper value received" );
done.pop().call();
});
jQuery.Deferred().resolve().then(function() {
return jQuery.Deferred().resolveWith(context);
}).done(function() {
assert.strictEqual( this, context,
"custom context of returned deferred correctly propagated" );
done.pop().call();
assert.strictEqual( this, context, "custom context of returned deferred correctly propagated" );
});
defer = jQuery.Deferred();
@ -399,227 +290,23 @@ QUnit.test( "jQuery.Deferred.then - context", function( assert ) {
defer.resolve( 2 );
piped.done(function( value ) {
assert.strictEqual( this, piped,
"default context gets updated to latest promise in the chain" );
assert.strictEqual( this, piped, "default context gets updated to latest promise in the chain" );
assert.strictEqual( value, 6, "proper value received" );
done.pop().call();
});
defer2 = jQuery.Deferred();
piped2 = defer2.then();
defer2.resolve( 2 );
piped2.done(function( value ) {
assert.strictEqual( this, piped2,
"default context updated to latest promise in the chain (without passing function)" );
assert.strictEqual( this, piped2, "default context gets updated to latest promise in the chain (without passing function)" );
assert.strictEqual( value, 2, "proper value received (without passing function)" );
done.pop().call();
} );
} );
QUnit.test( "[PIPE ONLY] jQuery.Deferred.pipe - context", function( assert ) {
assert.expect( 7 );
var defer, piped, defer2, piped2,
context = {},
done = jQuery.map( new Array( 4 ), function() { return assert.async(); } );
jQuery.Deferred().resolveWith( context, [ 2 ] ).pipe( function( value ) {
return value * 3;
} ).done( function( value ) {
assert.strictEqual( this, context, "[PIPE ONLY] custom context correctly propagated" );
assert.strictEqual( value, 6, "proper value received" );
done.pop().call();
} );
jQuery.Deferred().resolve().pipe( function() {
return jQuery.Deferred().resolveWith( context );
} ).done( function() {
assert.strictEqual( this, context,
"custom context of returned deferred correctly propagated" );
done.pop().call();
} );
defer = jQuery.Deferred();
piped = defer.pipe( function( value ) {
return value * 3;
} );
defer.resolve( 2 );
piped.done( function( value ) {
assert.strictEqual( this, piped,
"default context gets updated to latest promise in the chain" );
assert.strictEqual( value, 6, "proper value received" );
done.pop().call();
} );
defer2 = jQuery.Deferred();
piped2 = defer2.pipe();
defer2.resolve( 2 );
piped2.done( function( value ) {
assert.strictEqual( this, piped2,
"default context updated to latest promise in the chain (without passing function)" );
assert.strictEqual( value, 2, "proper value received (without passing function)" );
done.pop().call();
} );
} );
QUnit.test( "jQuery.Deferred.then - spec compatibility", function( assert ) {
assert.expect( 1 );
var done = assert.async();
var defer = jQuery.Deferred().done( function() {
setTimeout( done );
throw new Error();
} );
defer.then( function() {
assert.ok( true, "errors in .done callbacks don't stop .then handlers" );
} );
try {
defer.resolve();
} catch ( _ ) {}
} );
QUnit.test( "jQuery.Deferred - 1.x/2.x compatibility", function( assert ) {
assert.expect( 8 );
var context = { id: "callback context" },
thenable = jQuery.Deferred().resolve( "thenable fulfillment" ).promise(),
done = jQuery.map( new Array( 8 ), function() { return assert.async(); } );
thenable.unwrapped = false;
jQuery.Deferred().resolve( 1, 2 ).then( function() {
assert.deepEqual( [].slice.call( arguments ), [ 1, 2 ],
".then fulfillment callbacks receive all resolution values" );
done.pop().call();
} );
jQuery.Deferred().reject( 1, 2 ).then( null, function() {
assert.deepEqual( [].slice.call( arguments ), [ 1, 2 ],
".then rejection callbacks receive all rejection values" );
done.pop().call();
} );
jQuery.Deferred().notify( 1, 2 ).then( null, null, function() {
assert.deepEqual( [].slice.call( arguments ), [ 1, 2 ],
".then progress callbacks receive all progress values" );
done.pop().call();
} );
jQuery.Deferred().resolveWith( context ).then( function() {
assert.deepEqual( this, context, ".then fulfillment callbacks receive context" );
done.pop().call();
} );
jQuery.Deferred().rejectWith( context ).then( null, function() {
assert.deepEqual( this, context, ".then rejection callbacks receive context" );
done.pop().call();
} );
jQuery.Deferred().notifyWith( context ).then( null, null, function() {
assert.deepEqual( this, context, ".then progress callbacks receive context" );
done.pop().call();
} );
jQuery.Deferred().resolve( thenable ).done( function( value ) {
assert.strictEqual( value, thenable, ".done doesn't unwrap thenables" );
done.pop().call();
} );
jQuery.Deferred().notify( thenable ).then().then( null, null, function( value ) {
assert.strictEqual( value, "thenable fulfillment",
".then implicit progress callbacks unwrap thenables" );
done.pop().call();
} );
} );
QUnit.test( "jQuery.Deferred.then - progress and thenables", function( assert ) {
assert.expect( 2 );
var trigger = jQuery.Deferred().notify(),
expectedProgress = [ "baz", "baz" ],
done = jQuery.map( new Array( 2 ), function() { return assert.async(); } ),
failer = function( evt ) {
return function() {
assert.ok( false, "no unexpected " + evt );
};
};
trigger.then( null, null, function() {
var notifier = jQuery.Deferred().notify( "foo" );
setTimeout( function() {
notifier.notify( "bar" ).resolve( "baz" );
} );
return notifier;
} ).then( failer( "fulfill" ), failer( "reject" ), function( v ) {
assert.strictEqual( v, expectedProgress.shift(), "expected progress value" );
done.pop().call();
} );
trigger.notify();
} );
QUnit.test( "jQuery.Deferred - notify and resolve", function( assert ) {
assert.expect( 7 );
var notifiedResolved = jQuery.Deferred().notify( "foo" )/*xxx .resolve( "bar" )*/,
done = jQuery.map( new Array( 3 ), function() { return assert.async(); } );
notifiedResolved.progress( function( v ) {
assert.strictEqual( v, "foo", "progress value" );
} );
notifiedResolved.pipe().progress( function( v ) {
assert.strictEqual( v, "foo", "piped progress value" );
} );
notifiedResolved.pipe( null, null, function() {
return "baz";
} ).progress( function( v ) {
assert.strictEqual( v, "baz", "replaced piped progress value" );
} );
notifiedResolved.pipe( null, null, function() {
return jQuery.Deferred().notify( "baz" ).resolve( "quux" );
} ).progress( function( v ) {
assert.strictEqual( v, "baz", "deferred replaced piped progress value" );
} );
notifiedResolved.then().progress( function( v ) {
assert.strictEqual( v, "foo", "then'd progress value" );
done.pop().call();
} );
notifiedResolved.then( null, null, function() {
return "baz";
} ).progress( function( v ) {
assert.strictEqual( v, "baz", "replaced then'd progress value" );
done.pop().call();
} );
notifiedResolved.then( null, null, function() {
return jQuery.Deferred().notify( "baz" ).resolve( "quux" );
} ).progress( function( v ) {
// Progress from the surrogate deferred is ignored
assert.strictEqual( v, "quux", "deferred replaced then'd progress value" );
done.pop().call();
});
});
QUnit.test( "jQuery.when", function( assert ) {
assert.expect( 37 );
// Some other objects
jQuery.each({
"an empty string": "",
"a non-empty string": "some string",
@ -676,44 +363,30 @@ QUnit.test( "jQuery.when", function( assert ) {
} );
QUnit.test( "jQuery.when - joined", function( assert ) {
assert.expect( 195 );
assert.expect( 119 );
var deferreds = {
rawValue: 1,
fulfilled: jQuery.Deferred().resolve( 1 ),
rejected: jQuery.Deferred().reject( 0 ),
notified: jQuery.Deferred().notify( true ),
eventuallyFulfilled: jQuery.Deferred().notify( true ),
eventuallyRejected: jQuery.Deferred().notify( true ),
fulfilledStandardPromise: Promise.resolve( 1 ),
rejectedStandardPromise: Promise.reject( 0 )
value: 1,
success: jQuery.Deferred().resolve( 1 ),
error: jQuery.Deferred().reject( 0 ),
futureSuccess: jQuery.Deferred().notify( true ),
futureError: jQuery.Deferred().notify( true ),
notify: jQuery.Deferred().notify( true )
},
willSucceed = {
rawValue: true,
fulfilled: true,
eventuallyFulfilled: true,
fulfilledStandardPromise: true
value: true,
success: true,
futureSuccess: true
},
willError = {
rejected: true,
eventuallyRejected: true,
rejectedStandardPromise: true
error: true,
futureError: true
},
willNotify = {
notified: true,
eventuallyFulfilled: true,
eventuallyRejected: true
},
counter = 49;
QUnit.stop();
function restart() {
if ( !--counter ) {
QUnit.start();
}
}
futureSuccess: true,
futureError: true,
notify: true
};
jQuery.each( deferreds, function( id1, defer1 ) {
jQuery.each( deferreds, function( id2, defer2 ) {
@ -722,11 +395,9 @@ QUnit.test( "jQuery.when - joined", function( assert ) {
shouldNotify = willNotify[ id1 ] || willNotify[ id2 ],
expected = shouldResolve ? [ 1, 1 ] : [ 0, undefined ],
expectedNotify = shouldNotify && [ willNotify[ id1 ], willNotify[ id2 ] ],
code = "jQuery.when( " + id1 + ", " + id2 + " )",
context1 = defer1 && jQuery.isFunction( defer1.promise ) ? defer1.promise() :
( defer1.then ? window : undefined ),
context2 = defer2 && jQuery.isFunction( defer2.promise ) ? defer2.promise() :
( defer2.then ? window : undefined );
code = id1 + "/" + id2,
context1 = defer1 && jQuery.isFunction( defer1.promise ) ? defer1.promise() : undefined,
context2 = defer2 && jQuery.isFunction( defer2.promise ) ? defer2.promise() : undefined;
jQuery.when( defer1, defer2 ).done(function( a, b ) {
if ( shouldResolve ) {
@ -734,27 +405,27 @@ QUnit.test( "jQuery.when - joined", function( assert ) {
assert.strictEqual( this[ 0 ], context1, code + " => first context OK" );
assert.strictEqual( this[ 1 ], context2, code + " => second context OK" );
} else {
assert.ok( false, code + " => resolve" );
ok( false, code + " => resolve" );
}
}).fail(function( a, b ) {
if ( shouldError ) {
assert.deepEqual( [ a, b ], expected, code + " => reject" );
} else {
assert.ok( false, code + " => reject" );
ok( false, code + " => reject" );
}
}).progress(function( a, b ) {
assert.deepEqual( [ a, b ], expectedNotify, code + " => progress" );
assert.strictEqual( this[ 0 ], expectedNotify[ 0 ] ? context1 : undefined, code + " => first context OK" );
assert.strictEqual( this[ 1 ], expectedNotify[ 1 ] ? context2 : undefined, code + " => second context OK" );
} ).always( restart );
});
});
deferreds.eventuallyFulfilled.resolve( 1 );
deferreds.eventuallyRejected.reject( 0 );
});
deferreds.futureSuccess.resolve( 1 );
deferreds.futureError.reject( 0 );
});
QUnit.test( "jQuery.when - resolved", function( assert ) {
assert.expect( 6 );
var a = jQuery.Deferred().notify( 1 ).resolve( 4 ),
@ -772,75 +443,5 @@ QUnit.test( "jQuery.when - resolved", function( assert ) {
}).fail(function() {
assert.ok( false, "Error on resolve" );
});
} );
QUnit.test( "jQuery.when - filtering", function( assert ) {
assert.expect( 2 );
function increment( x ) {
return x + 1;
}
QUnit.stop();
jQuery.when(
jQuery.Deferred().resolve( 3 ).then( increment ),
jQuery.Deferred().reject( 5 ).then( null, increment )
).done( function( four, six ) {
assert.strictEqual( four, 4, "resolved value incremented" );
assert.strictEqual( six, 6, "rejected value incremented" );
QUnit.start();
} );
} );
QUnit.test( "jQuery.when - exceptions", function( assert ) {
assert.expect( 2 );
function woops() {
throw "exception thrown";
}
QUnit.stop();
jQuery.Deferred().resolve().then( woops ).fail( function( doneException ) {
assert.strictEqual( doneException, "exception thrown", "throwing in done handler" );
jQuery.Deferred().reject().then( null, woops ).fail( function( failException ) {
assert.strictEqual( failException, "exception thrown", "throwing in fail handler" );
QUnit.start();
} );
} );
} );
QUnit.test( "jQuery.when - chaining", function( assert ) {
assert.expect( 4 );
var defer = jQuery.Deferred();
function chain() {
return defer;
}
function chainStandard() {
return Promise.resolve( "std deferred" );
}
QUnit.stop();
jQuery.when(
jQuery.Deferred().resolve( 3 ).then( chain ),
jQuery.Deferred().reject( 5 ).then( null, chain ),
jQuery.Deferred().resolve( 3 ).then( chainStandard ),
jQuery.Deferred().reject( 5 ).then( null, chainStandard )
).done( function( v1, v2, s1, s2 ) {
assert.strictEqual( v1, "other deferred", "chaining in done handler" );
assert.strictEqual( v2, "other deferred", "chaining in fail handler" );
assert.strictEqual( s1, "std deferred", "chaining thenable in done handler" );
assert.strictEqual( s2, "std deferred", "chaining thenable in fail handler" );
QUnit.start();
} );
defer.resolve( "other deferred" );
});