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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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parent49ee0794b5d912db1f95dce6eb52d781dc210db5 (diff)
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Add m-esr52 at 52.6.0
Diffstat (limited to 'js/src/jit-test/tests/collections/WeakMap-constructor-2.js')
-rw-r--r--js/src/jit-test/tests/collections/WeakMap-constructor-2.js37
1 files changed, 37 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/collections/WeakMap-constructor-2.js b/js/src/jit-test/tests/collections/WeakMap-constructor-2.js
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index 000000000..4c64d9e9f
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+++ b/js/src/jit-test/tests/collections/WeakMap-constructor-2.js
@@ -0,0 +1,37 @@
+// The WeakMap constructor can take an argument that is an array of pairs.
+
+var k1 = {};
+var v1 = 42;
+var k2 = {};
+var v2 = 43;
+var k3 = {};
+
+var arr = [[k1, v1], [k2, v2]];
+
+var m = new WeakMap(arr);
+
+assertEq(m.has(k1), true);
+assertEq(m.has(k2), true);
+assertEq(m.has(k3), false);
+assertEq(m.get(k1), v1);
+assertEq(m.get(k2), v2);
+assertEq(m.get(k3), undefined);
+
+var arraylike1 = {
+ 0: k1,
+ 1: v1
+};
+var arraylike2 = {
+ 0: k2,
+ 1: v2
+};
+arr = [arraylike1, arraylike2];
+
+m = new WeakMap(arr);
+
+assertEq(m.has(k1), true);
+assertEq(m.has(k2), true);
+assertEq(m.has(k3), false);
+assertEq(m.get(k1), v1);
+assertEq(m.get(k2), v2);
+assertEq(m.get(k3), undefined);