From 7f53ea671cf24ef2dbc8dd65a461c2e7aec302ba Mon Sep 17 00:00:00 2001
From: Alexey Shvayka <shvaikalesh@gmail.com>
Date: Wed, 27 May 2020 12:32:52 +0300
Subject: [PATCH] Add for/of tests

---
 ...ator-close-non-throw-get-method-is-null.js | 50 +++++++++++++++++++
 ...ator-close-non-throw-get-method-is-null.js | 47 +++++++++++++++++
 2 files changed, 97 insertions(+)
 create mode 100644 test/language/statements/for-await-of/iterator-close-non-throw-get-method-is-null.js
 create mode 100644 test/language/statements/for-of/iterator-close-non-throw-get-method-is-null.js

diff --git a/test/language/statements/for-await-of/iterator-close-non-throw-get-method-is-null.js b/test/language/statements/for-await-of/iterator-close-non-throw-get-method-is-null.js
new file mode 100644
index 0000000000..bb60c757a1
--- /dev/null
+++ b/test/language/statements/for-await-of/iterator-close-non-throw-get-method-is-null.js
@@ -0,0 +1,50 @@
+// Copyright (C) 2020 Alexey Shvayka. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+esid: sec-asynciteratorclose
+description: >
+  If iterator's "return" method is `null`,
+  received non-throw completion is forwarded to the runtime.
+info: |
+  AsyncIteratorClose ( iteratorRecord, completion )
+
+  [...]
+  4. Let innerResult be GetMethod(iterator, "return").
+  5. If innerResult.[[Type]] is normal,
+    a. Let return be innerResult.[[Value]].
+    b. If return is undefined, return Completion(completion).
+
+  GetMethod ( V, P )
+
+  [...]
+  2. Let func be ? GetV(V, P).
+  3. If func is either undefined or null, return undefined.
+features: [Symbol.asyncIterator, async-iteration]
+flags: [async]
+---*/
+
+var iterationCount = 0;
+var returnGets = 0;
+
+var iterable = {};
+iterable[Symbol.asyncIterator] = function() {
+  return {
+    next: function() {
+      return {value: 1, done: false};
+    },
+    get return() {
+      returnGets += 1;
+      return null;
+    },
+  };
+};
+
+(async function() {
+  for await (var _ of iterable) {
+    iterationCount += 1;
+    break;
+  }
+
+  assert.sameValue(iterationCount, 1);
+  assert.sameValue(returnGets, 1);
+}()).then($DONE, $DONE);
diff --git a/test/language/statements/for-of/iterator-close-non-throw-get-method-is-null.js b/test/language/statements/for-of/iterator-close-non-throw-get-method-is-null.js
new file mode 100644
index 0000000000..420f4c5917
--- /dev/null
+++ b/test/language/statements/for-of/iterator-close-non-throw-get-method-is-null.js
@@ -0,0 +1,47 @@
+// Copyright (C) 2020 Alexey Shvayka. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+esid: sec-iteratorclose
+description: >
+  If iterator's "return" method is `null`,
+  received non-throw completion is forwarded to the runtime.
+info: |
+  IteratorClose ( iteratorRecord, completion )
+
+  [...]
+  4. Let innerResult be GetMethod(iterator, "return").
+  5. If innerResult.[[Type]] is normal,
+    a. Let return be innerResult.[[Value]].
+    b. If return is undefined, return Completion(completion).
+
+  GetMethod ( V, P )
+
+  [...]
+  2. Let func be ? GetV(V, P).
+  3. If func is either undefined or null, return undefined.
+features: [Symbol.iterator]
+---*/
+
+var iterationCount = 0;
+var returnGets = 0;
+
+var iterable = {};
+iterable[Symbol.iterator] = function() {
+  return {
+    next: function() {
+      return {value: 1, done: false};
+    },
+    get return() {
+      returnGets += 1;
+      return null;
+    },
+  };
+};
+
+for (var _ of iterable) {
+  iterationCount += 1;
+  break;
+}
+
+assert.sameValue(iterationCount, 1);
+assert.sameValue(returnGets, 1);