michael@0: /*
michael@0:  * Any copyright is dedicated to the Public Domain.
michael@0:  * http://creativecommons.org/licenses/publicdomain/
michael@0:  * Contributor:
michael@0:  *   Jeff Walden <jwalden+code@mit.edu>
michael@0:  */
michael@0: 
michael@0: //-----------------------------------------------------------------------------
michael@0: var BUGNUMBER = 575535;
michael@0: var summary = 'Function.prototype.call';
michael@0: print(BUGNUMBER + ": " + summary);
michael@0: 
michael@0: /**************
michael@0:  * BEGIN TEST *
michael@0:  **************/
michael@0: 
michael@0: function expectTypeError(fun, msg)
michael@0: {
michael@0:   try
michael@0:   {
michael@0:     fun();
michael@0:     assertEq(true, false, "should have thrown a TypeError");
michael@0:   }
michael@0:   catch (e)
michael@0:   {
michael@0:     assertEq(e instanceof TypeError, true, msg + "; instead threw " + e);
michael@0:   }
michael@0: }
michael@0: 
michael@0: function fun() { }
michael@0: 
michael@0: var global = this;
michael@0: 
michael@0: assertEq(Function.prototype.call.length, 1);
michael@0: 
michael@0: 
michael@0: /* Step 1. */
michael@0: var nonfuns = [null, 1, -1, 2.5, "[[Call]]", undefined, true, false, {}];
michael@0: for (var i = 0, sz = nonfuns.length; i < sz; i++)
michael@0: {
michael@0:   var f = function()
michael@0:   {
michael@0:     Function.prototype.call.apply(nonfuns[i]);
michael@0:   };
michael@0:   var msg =
michael@0:     "expected TypeError calling Function.prototype.call with uncallable this";
michael@0:   expectTypeError(f, msg);
michael@0: }
michael@0: 
michael@0: 
michael@0: /* Steps 2-4. */
michael@0: function none()
michael@0: {
michael@0:   assertEq(this, global, "bad this");
michael@0:   assertEq(arguments.length, 0, "wrong arguments");
michael@0: }
michael@0: 
michael@0: none.call();
michael@0: none.call(undefined);
michael@0: none.call(null);
michael@0: 
michael@0: var seenThis;
michael@0: function strictNone()
michael@0: {
michael@0:   "use strict";
michael@0:   assertEq(this, seenThis, "bad this");
michael@0:   assertEq(arguments.length, 0, "wrong arguments");
michael@0: }
michael@0: 
michael@0: seenThis = undefined;
michael@0: strictNone.call();
michael@0: strictNone.call(undefined);
michael@0: 
michael@0: seenThis = null;
michael@0: strictNone.call(null);
michael@0: 
michael@0: seenThis = 17;
michael@0: strictNone.call(17);
michael@0: 
michael@0: var seenThisBox, args;
michael@0: function some()
michael@0: {
michael@0:   assertEq(this instanceof seenThisBox, true,
michael@0:            "this not instanceof " + seenThisBox);
michael@0:   assertEq(this.valueOf(), seenThis,
michael@0:            "wrong this valueOf()");
michael@0:   assertEq(arguments.length, args.length, "wrong arguments count");
michael@0:   for (var i = 0; i < args.length; i++)
michael@0:     assertEq(arguments[i], args[i], "wrong argument " + i);
michael@0: }
michael@0: 
michael@0: seenThis = false;
michael@0: seenThisBox = Boolean;
michael@0: args = [8, 6, 7, NaN, undefined, 0.3];
michael@0: some.call(false, 8, 6, 7, NaN, undefined, 0.3);
michael@0: 
michael@0: var obj = {};
michael@0: 
michael@0: seenThis = "foo";
michael@0: seenThisBox = String;
michael@0: args = [obj];
michael@0: some.call("foo", obj);
michael@0: 
michael@0: seenThis = obj;
michael@0: seenThisBox = Object;
michael@0: some.call(obj, obj);
michael@0: 
michael@0: function strictSome()
michael@0: {
michael@0:   "use strict";
michael@0:   assertEq(this, seenThis, "wrong this");
michael@0:   assertEq(arguments.length, args.length, "wrong arguments count");
michael@0:   for (var i = 0; i < args.length; i++)
michael@0:     assertEq(arguments[i], args[i], "wrong argument " + i);
michael@0: }
michael@0: 
michael@0: seenThis = NaN;
michael@0: args = [8, 6, 7, NaN, undefined, 0.3];
michael@0: strictSome.call(NaN, 8, 6, 7, NaN, undefined, 0.3);
michael@0: 
michael@0: seenThis = "foo";
michael@0: args = [obj];
michael@0: strictSome.call("foo", obj);
michael@0: 
michael@0: seenThis = obj;
michael@0: strictSome.call(obj, obj);
michael@0: 
michael@0: 
michael@0: /******************************************************************************/
michael@0: 
michael@0: if (typeof reportCompare === "function")
michael@0:   reportCompare(true, true);
michael@0: 
michael@0: print("All tests passed!");