Adding upstream version 115.7.0esr.upstream/115.7.0esrupstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 51 insertions, 0 deletions

diff --git a/js/src/tests/test262/language/statements/for-of/generator-close-via-throw.js b/js/src/tests/test262/language/statements/for-of/generator-close-via-throw.js
new file mode 100644
index 0000000000..0b5c83cb3f
--- /dev/null
+++ b/js/src/tests/test262/language/statements/for-of/generator-close-via-throw.js
@@ -0,0 +1,51 @@
+// Copyright (C) 2015 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+es6id: 13.6.4.13
+description: >
+    Generators should be closed via their `return` method when iteration is
+    interrupted via a `throw` statement.
+features: [generators]
+---*/
+
+var startedCount = 0;
+var finallyCount = 0;
+var iterationCount = 0;
+function* values() {
+  startedCount += 1;
+  try {
+    yield;
+    throw new Test262Error('This code is unreachable (within `try` block)');
+  } finally {
+    finallyCount += 1;
+  }
+  throw new Test262Error('This code is unreachable (following `try` statement)');
+}
+var iterable = values();
+
+assert.sameValue(
+  startedCount, 0, 'Generator is initialized in suspended state'
+);
+
+try {
+  for (var x of iterable) {
+    assert.sameValue(
+      startedCount, 1, 'Generator executes prior to first iteration'
+    );
+    assert.sameValue(
+      finallyCount, 0, 'Generator is paused during first iteration'
+    );
+    iterationCount += 1;
+    throw 0;
+  }
+} catch(err) {}
+
+assert.sameValue(
+  startedCount, 1, 'Generator does not restart following interruption'
+);
+assert.sameValue(iterationCount, 1, 'A single iteration occurs');
+assert.sameValue(
+  finallyCount, 1, 'Generator is closed after `throw` statement'
+);
+
+reportCompare(0, 0);