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module("callbacks", { teardown: moduleTeardown });
(function() {
var output,
addToOutput = function( string ) {
return function() {
output += string;
};
},
outputA = addToOutput( "A" ),
outputB = addToOutput( "B" ),
outputC = addToOutput( "C" ),
tests = {
"": "XABC X XABCABCC X XBB X XABA X",
"once": "XABC X X X X X XABA X",
"memory": "XABC XABC XABCABCCC XA XBB XB XABA XC",
"unique": "XABC X XABCA X XBB X XAB X",
"stopOnFalse": "XABC X XABCABCC X XBB X XA X",
"once memory": "XABC XABC X XA X XA XABA XC",
"once unique": "XABC X X X X X XAB X",
"once stopOnFalse": "XABC X X X X X XA X",
"memory unique": "XABC XA XABCA XA XBB XB XAB XC",
"memory stopOnFalse": "XABC XABC XABCABCCC XA XBB XB XA X",
"unique stopOnFalse": "XABC X XABCA X XBB X XA X"
},
filters = {
"no filter": undefined,
"filter": function( fn ) {
return function() {
return fn.apply( this, arguments );
};
}
};
jQuery.each( tests, function( flags, resultString ) {
jQuery.each( filters, function( filterLabel, filter ) {
test( "jQuery.Callbacks( \"" + flags + "\" ) - " + filterLabel, function() {
expect( 19 );
// Give qunit a little breathing room
stop();
setTimeout( start, 0 );
var cblist;
results = resultString.split( /\s+/ );
// Basic binding and firing
output = "X";
cblist = jQuery.Callbacks( flags );
cblist.add(function( str ) {
output += str;
});
cblist.fire( "A" );
strictEqual( output, "XA", "Basic binding and firing" );
output = "X";
cblist.disable();
cblist.add(function( str ) {
output += str;
});
strictEqual( output, "X", "Adding a callback after disabling" );
cblist.fire( "A" );
strictEqual( output, "X", "Firing after disabling" );
// Basic binding and firing (context, arguments)
output = "X";
cblist = jQuery.Callbacks( flags );
cblist.add(function() {
equals( this, window, "Basic binding and firing (context)" );
output += Array.prototype.join.call( arguments, "" );
});
cblist.fireWith( window, [ "A", "B" ] );
strictEqual( output, "XAB", "Basic binding and firing (arguments)" );
// fireWith with no arguments
output = "";
cblist = jQuery.Callbacks( flags );
cblist.add(function() {
equals( this, window, "fireWith with no arguments (context is window)" );
strictEqual( arguments.length, 0, "fireWith with no arguments (no arguments)" );
});
cblist.fireWith();
// Basic binding, removing and firing
output = "X";
cblist = jQuery.Callbacks( flags );
cblist.add( outputA, outputB, outputC );
cblist.remove( outputB, outputC );
cblist.fire();
strictEqual( output, "XA", "Basic binding, removing and firing" );
// Empty
output = "X";
cblist = jQuery.Callbacks( flags );
cblist.add( outputA );
cblist.add( outputB );
cblist.add( outputC );
cblist.empty();
cblist.fire();
strictEqual( output, "X", "Empty" );
// Locking
output = "X";
cblist = jQuery.Callbacks( flags );
cblist.add( function( str ) {
output += str;
});
cblist.lock();
cblist.add( function( str ) {
output += str;
});
cblist.fire( "A" );
cblist.add( function( str ) {
output += str;
});
strictEqual( output, "X", "Lock early" );
// Ordering
output = "X";
cblist = jQuery.Callbacks( flags );
cblist.add( function() {
cblist.add( outputC );
outputA();
}, outputB );
cblist.fire();
strictEqual( output, results.shift(), "Proper ordering" );
// Add and fire again
output = "X";
cblist.add( function() {
cblist.add( outputC );
outputA();
}, outputB );
strictEqual( output, results.shift(), "Add after fire" );
output = "X";
cblist.fire();
strictEqual( output, results.shift(), "Fire again" );
// Multiple fire
output = "X";
cblist = jQuery.Callbacks( flags );
cblist.add( function( str ) {
output += str;
} );
cblist.fire( "A" );
strictEqual( output, "XA", "Multiple fire (first fire)" );
output = "X";
cblist.add( function( str ) {
output += str;
} );
strictEqual( output, results.shift(), "Multiple fire (first new callback)" );
output = "X";
cblist.fire( "B" );
strictEqual( output, results.shift(), "Multiple fire (second fire)" );
output = "X";
cblist.add( function( str ) {
output += str;
} );
strictEqual( output, results.shift(), "Multiple fire (second new callback)" );
// Return false
output = "X";
cblist = jQuery.Callbacks( flags );
cblist.add( outputA, function() { return false; }, outputB );
cblist.add( outputA );
cblist.fire();
strictEqual( output, results.shift(), "Callback returning false" );
// Add another callback (to control lists with memory do not fire anymore)
output = "X";
cblist.add( outputC );
strictEqual( output, results.shift(), "Adding a callback after one returned false" );
});
});
});
})();
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