summaryrefslogtreecommitdiffstats
path: root/js/src/tests/non262/Iterator/prototype/lazy-methods-from-other-global.js
diff options
context:
space:
mode:
Diffstat (limited to '')
-rw-r--r--js/src/tests/non262/Iterator/prototype/lazy-methods-from-other-global.js31
1 files changed, 31 insertions, 0 deletions
diff --git a/js/src/tests/non262/Iterator/prototype/lazy-methods-from-other-global.js b/js/src/tests/non262/Iterator/prototype/lazy-methods-from-other-global.js
new file mode 100644
index 0000000000..e6235ed171
--- /dev/null
+++ b/js/src/tests/non262/Iterator/prototype/lazy-methods-from-other-global.js
@@ -0,0 +1,31 @@
+// |reftest| skip-if(!this.hasOwnProperty('Iterator'))
+
+const otherIteratorProto = newGlobal({newCompartment: true}).Iterator.prototype;
+
+const methods = [
+ ["map", x => x],
+ ["filter", x => true],
+ ["take", Infinity],
+ ["drop", 0],
+ ["asIndexedPairs", undefined],
+ ["flatMap", x => [x]],
+];
+
+// Use the lazy Iterator methods from another global on an iterator from this global.
+for (const [method, arg] of methods) {
+ const iterator = [1, 2, 3].values();
+ const helper = otherIteratorProto[method].call(iterator, arg);
+
+ for (const expected of [1, 2, 3]) {
+ const {done, value} = helper.next();
+ assertEq(done, false);
+ assertEq(Array.isArray(value) ? value[1] : value, expected);
+ }
+
+ const {done, value} = helper.next();
+ assertEq(done, true);
+ assertEq(value, undefined);
+}
+
+if (typeof reportCompare === 'function')
+ reportCompare(0, 0);