michael@0: function f1(a, bIs, cIs, dIs, b=a, c=d, d=5) {
michael@0:     assertEq(a, 1);
michael@0:     assertEq(b, bIs);
michael@0:     assertEq(c, cIs);
michael@0:     assertEq(d, dIs);
michael@0: }
michael@0: f1(1, 1, undefined, 5);
michael@0: f1(1, 42, undefined, 5, 42);
michael@0: f1(1, 42, 43, 5, 42, 43);
michael@0: f1(1, 42, 43, 44, 42, 43, 44);
michael@0: function f2(a=[]) { return a; }
michael@0: assertEq(f2() !== f2(), true);
michael@0: function f3(a=function () {}) { return a; }
michael@0: assertEq(f3() !== f3(), true);
michael@0: function f4(a=Date) { return a; }
michael@0: assertEq(f4(), Date);
michael@0: Date = 0;
michael@0: assertEq(f4(), 0);
michael@0: function f5(x=FAIL()) {};  // don't throw
michael@0: var n = 0;
michael@0: function f6(a=n++) {}
michael@0: assertEq(n, 0);
michael@0: function f7([a, b], A=a, B=b) {
michael@0:     assertEq(A, a);
michael@0:     assertEq(B, b);
michael@0: }
michael@0: f7([0, 1]);