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authorMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
committerMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
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tree10027f336435511475e392454359edea8e25895d /js/src/tests/ecma_6/Map/iterable.js
parent49ee0794b5d912db1f95dce6eb52d781dc210db5 (diff)
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Add m-esr52 at 52.6.0
Diffstat (limited to 'js/src/tests/ecma_6/Map/iterable.js')
-rw-r--r--js/src/tests/ecma_6/Map/iterable.js28
1 files changed, 28 insertions, 0 deletions
diff --git a/js/src/tests/ecma_6/Map/iterable.js b/js/src/tests/ecma_6/Map/iterable.js
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+++ b/js/src/tests/ecma_6/Map/iterable.js
@@ -0,0 +1,28 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/licenses/publicdomain/ */
+
+let length;
+let iterable = {
+ [Symbol.iterator]() { return this; },
+ next() { length = arguments.length; return {done: true}; }
+};
+
+new Map(iterable);
+// ensure no arguments are passed to next() during construction (Bug 1197095)
+assertEq(length, 0);
+
+let typeofThis;
+Object.defineProperty(Number.prototype, Symbol.iterator, {
+ value() {
+ "use strict";
+ typeofThis = typeof this;
+ return { next() { return {done: true}; } };
+ }
+});
+
+new Map(0);
+// ensure that iterable objects retain their type (Bug 1197094)
+assertEq(typeofThis, "number");
+
+if (typeof reportCompare === "function")
+ reportCompare(0, 0);