michael@0: load(libdir + "asserts.js");
michael@0: load(libdir + "iteration.js");
michael@0: 
michael@0: assertEq(eval(...[]), undefined);
michael@0: assertEq(eval(...["1 + 2"]), 3);
michael@0: 
michael@0: let a = 10, b = 1;
michael@0: assertEq(eval(...["a + b"]), 11);
michael@0: 
michael@0: (function() {
michael@0:   let a = 20;
michael@0:   assertEq(eval(...["a + b"]), 21);
michael@0: })();
michael@0: 
michael@0: with ({ a: 30 }) {
michael@0:   assertEq(eval(...["a + b"]), 31);
michael@0: }
michael@0: 
michael@0: let line0 = Error().lineNumber;
michael@0: try {             // line0 + 1
michael@0:   eval(...["("]); // line0 + 2
michael@0: } catch (e) {
michael@0:   assertEq(e.lineNumber, 1);
michael@0: }
michael@0: 
michael@0: // other iterable objects
michael@0: assertEq(eval(...["a + b"][std_iterator]()), 11);
michael@0: assertEq(eval(...Set(["a + b"])), 11);
michael@0: let itr = {};
michael@0: itr[std_iterator] = function() {
michael@0:     return {
michael@0:         i: 0,
michael@0:         next: function() {
michael@0:             this.i++;
michael@0:             if (this.i == 1)
michael@0:                 return { value: "a + b", done: false };
michael@0:             else
michael@0:                 return { value: undefined, done: true };
michael@0:         }
michael@0:     };
michael@0: };
michael@0: assertEq(eval(...itr), 11);
michael@0: function* gen() {
michael@0:     yield "a + b";
michael@0: }
michael@0: assertEq(eval(...gen()), 11);
michael@0: 
michael@0: let c = ["C"], d = "D";
michael@0: assertEq(eval(...c=["c[0] + d"]), "c[0] + dD");
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: //assertEq(eval("a + b", ...null), 11);
michael@0: //assertEq(eval("a + b", ...undefined), 11);
michael@0: assertThrowsInstanceOf(() => eval("a + b", ...null), TypeError);
michael@0: assertThrowsInstanceOf(() => eval("a + b", ...undefined), TypeError);