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Unified Diff: test/mjsunit/harmony/async-arrow-lexical-arguments.js

Issue 1895603002: [esnext] prototype runtime implementation for async functions (Closed) Base URL: https://chromium.googlesource.com/v8/v8.git@AsyncFunction
Patch Set: fix some nits Created 4 years, 7 months ago
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Index: test/mjsunit/harmony/async-arrow-lexical-arguments.js
diff --git a/test/mjsunit/harmony/async-arrow-lexical-arguments.js b/test/mjsunit/harmony/async-arrow-lexical-arguments.js
new file mode 100644
index 0000000000000000000000000000000000000000..44d38a4275c770a4827e2258bf9ef1faa49061aa
--- /dev/null
+++ b/test/mjsunit/harmony/async-arrow-lexical-arguments.js
@@ -0,0 +1,42 @@
+// Copyright 2016 the V8 project authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+// Flags: --harmony-async-await --allow-natives-syntax
+
+function assertEqualsAsync(expected, run, msg) {
+ var actual;
+ var hadValue = false;
+ var hadError = false;
+ var promise = run();
+
+ if (typeof promise !== "object" || typeof promise.then !== "function") {
+ throw new MjsUnitAssertionError(
+ "Expected " + run.toString() +
+ " to return a Promise, but it returned " + PrettyPrint(promise));
+ }
+
+ promise.then(function(value) { hadValue = true; actual = value; },
+ function(error) { hadError = true; actual = error; });
+
+ assertFalse(hadValue || hadError);
+
+ %RunMicrotasks();
+
+ if (hadError) throw actual;
+
+ assertTrue(
+ hadValue, "Expected '" + run.toString() + "' to produce a value");
+
+ assertEquals(expected, actual, msg);
+};
+
+assertEqualsAsync("[1,2,3]", () => (function() {
+ return (async () => JSON.stringify([...arguments]))();
+})(1, 2, 3));
+
+assertEqualsAsync("[4,5,6]",
+ () => (function() {
+ return (async () => {
+ return JSON.stringify([...await arguments]) })();
+ })(4, 5, 6));

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