1 files changed, 62 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/Atomics/wait/value-not-equal.js b/js/src/tests/test262/built-ins/Atomics/wait/value-not-equal.js
new file mode 100644
index 0000000000..e5ecb4a34b
--- /dev/null
+++ b/js/src/tests/test262/built-ins/Atomics/wait/value-not-equal.js
@@ -0,0 +1,62 @@
+// |reftest| skip-if(!this.hasOwnProperty('Atomics')||!this.hasOwnProperty('SharedArrayBuffer')||(this.hasOwnProperty('getBuildConfiguration')&&getBuildConfiguration()['arm64-simulator'])) -- Atomics,SharedArrayBuffer is not enabled unconditionally, ARM64 Simulator cannot emulate atomics
+// Copyright (C) 2018 Amal Hussein.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+esid: sec-atomics.wait
+description: >
+  Returns "not-equal" when value arg does not match an index in the typedArray
+info: |
+  Atomics.wait( typedArray, index, value, timeout )
+
+  3.Let v be ? ToInt32(value).
+    ...
+  14.If v is not equal to w, then
+    a.Perform LeaveCriticalSection(WL).
+    b. Return the String "not-equal".
+
+includes: [atomicsHelper.js]
+features: [Atomics, SharedArrayBuffer, TypedArray]
+---*/
+
+const RUNNING = 1;
+
+var value = 42;
+
+$262.agent.start(`
+  $262.agent.receiveBroadcast(function(sab) {
+    const i32a = new Int32Array(sab);
+    Atomics.add(i32a, ${RUNNING}, 1);
+
+    $262.agent.report(Atomics.store(i32a, 0, ${value}));
+    $262.agent.report(Atomics.wait(i32a, 0, 0));
+    $262.agent.leaving();
+  });
+`);
+
+const i32a = new Int32Array(
+  new SharedArrayBuffer(Int32Array.BYTES_PER_ELEMENT * 4)
+);
+
+// NB: We don't actually explicitly need to wait for the agent to start in this
+// test case, we only do it for consistency with other test cases which do
+// require the main agent to wait and yield control.
+
+$262.agent.safeBroadcast(i32a);
+$262.agent.waitUntil(i32a, RUNNING, 1);
+
+// Try to yield control to ensure the agent actually started to wait.
+$262.agent.tryYield();
+
+assert.sameValue(
+  $262.agent.getReport(),
+  value.toString(),
+  '$262.agent.getReport() returns value.toString()'
+);
+assert.sameValue(
+  $262.agent.getReport(),
+  'not-equal',
+  '$262.agent.getReport() returns "not-equal"'
+);
+
+reportCompare(0, 0);