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+// Copyright (C) 2018 Valerie Young. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+esid: sec-asyncgenerator-prototype-throw
+description: return() call while iterator is in state executing
+info: |
+  AsyncGenerator.prototype.throw ( error )
+  1. Let generator be the this value.
+  2. Let completion be Completion{[[Type]]: throw, [[Value]]: error, [[Target]]: empty}.
+  3. Return ! AsyncGeneratorEnqueue(generator, completion).
+
+  AsyncGeneratorEnqueue ( generator, completion )
+  ...
+  4. Let queue be generator.[[AsyncGeneratorQueue]].
+  5. Let request be AsyncGeneratorRequest{[[Completion]]: completion,
+     [[Capability]]: promiseCapability}.
+  6. Append request to the end of queue.
+  ...
+
+  AsyncGeneratorResolve ( generator, value, done )
+  ...
+  2. Let queue be generator.[[AsyncGeneratorQueue]].
+  3. Assert: queue is not an empty List.
+  4. Remove the first element from queue and let next be the value of that element.
+  ...
+
+flags: [async]
+features: [async-iteration]
+---*/
+
+var iter, result;
+var thrownErr = new Error("Catch me.");
+var caughtErr;
+
+var order = 0;
+var promises = []
+
+async function* g() {
+
+  iter.throw(thrownErr).then(
+    function() {
+      $DONE(new Test262Error("throw() should result in reject promise."));
+    },
+    function(e) {
+      caughtErr = e;
+      order++;
+    }
+  );
+
+  yield 1;
+  yield 2;
+}
+
+iter = g();
+
+iter.next().then(function(result) {
+
+  assert.sameValue(++order, 1);
+  assert.sameValue(result.value, 1);
+  assert.sameValue(result.done, false);
+
+  iter.next().then(function(result) {
+    assert.sameValue(++order, 3);
+    assert.sameValue(caughtErr, thrownErr);
+    assert.sameValue(result.done, true);
+  }).then($DONE, $DONE);
+
+}).catch($DONE)