michael@0: load(libdir + "asserts.js");
michael@0: load(libdir + "iteration.js");
michael@0: load(libdir + "eqArrayHelper.js");
michael@0: 
michael@0: assertEqArray([...[1, 2, 3]], [1, 2, 3]);
michael@0: assertEqArray([1, ...[2, 3, 4], 5], [1, 2, 3, 4, 5]);
michael@0: assertEqArray([1, ...[], 2], [1, 2]);
michael@0: assertEqArray([1, ...[2, 3], 4, ...[5, 6]], [1, 2, 3, 4, 5, 6]);
michael@0: assertEqArray([1, ...[], 2], [1, 2]);
michael@0: assertEqArray([1,, ...[2]], [1,, 2]);
michael@0: assertEqArray([1,, ...[2],, 3,, 4,], [1,, 2,, 3,, 4,]);
michael@0: assertEqArray([...[1, 2, 3],,,,], [1, 2, 3,,,,]);
michael@0: assertEqArray([,,...[1, 2, 3],,,,], [,,1,2,3,,,,]);
michael@0: 
michael@0: assertEqArray([...[undefined]], [undefined]);
michael@0: 
michael@0: // other iterable objects
michael@0: assertEqArray([...new Int32Array([1, 2, 3])], [1, 2, 3]);
michael@0: assertEqArray([..."abc"], ["a", "b", "c"]);
michael@0: assertEqArray([...[1, 2, 3][std_iterator]()], [1, 2, 3]);
michael@0: assertEqArray([...Set([1, 2, 3])], [1, 2, 3]);
michael@0: assertEqArray([...Map([["a", "A"], ["b", "B"], ["c", "C"]])].map(([k, v]) => k + v), ["aA", "bB", "cC"]);
michael@0: let itr = {};
michael@0: itr[std_iterator] = function () {
michael@0:     return {
michael@0:         i: 1,
michael@0:         next: function() {
michael@0:             if (this.i < 4)
michael@0:                 return { value: this.i++, done: false };
michael@0:             else
michael@0:                 return { value: undefined, done: true };
michael@0:         }
michael@0:     };
michael@0: }
michael@0: assertEqArray([...itr], [1, 2, 3]);
michael@0: function* gen() {
michael@0:     for (let i = 1; i < 4; i ++)
michael@0:         yield i;
michael@0: }
michael@0: assertEqArray([...gen()], [1, 2, 3]);
michael@0: 
michael@0: let a, b = [1, 2, 3];
michael@0: assertEqArray([...a=b], [1, 2, 3]);
michael@0: 
michael@0: // According to the draft spec, null and undefined are to be treated as empty
michael@0: // arrays. However, they are not iterable. If the spec is not changed to be in
michael@0: // terms of iterables, these tests should be fixed.
michael@0: //assertEqArray([1, ...null, 2], [1, 2]);
michael@0: //assertEqArray([1, ...undefined, 2], [1, 2]);
michael@0: assertThrowsInstanceOf(() => [...null], TypeError);
michael@0: assertThrowsInstanceOf(() => [...undefined], TypeError);
michael@0: