async-iteration: AsyncGeneratorPrototype tests (#1451)

1 files changed, 66 insertions, 0 deletions

diff --git a/test/built-ins/AsyncGeneratorPrototype/return/request-queue-order-state-executing.js b/test/built-ins/AsyncGeneratorPrototype/return/request-queue-order-state-executing.js
new file mode 100644
index 000000000..0d469e678
--- /dev/null
+++ b/test/built-ins/AsyncGeneratorPrototype/return/request-queue-order-state-executing.js
@@ -0,0 +1,66 @@
+// 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.return ( value )
+  1. Let generator be the this value.
+  2. Let completion be Completion{[[Type]]: return, [[Value]]: value, [[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;
+var executionorder = 0;
+var valueisset = false;
+
+async function* g() {
+
+  iter.return(42).then(
+    function(result) {
+      assert(valueisset, "variable valueisset should be set to true");
+      assert.sameValue(++executionorder, 2);
+      assert.sameValue(result.value, 42);
+      assert.sameValue(result.done, true);
+    }
+  ).catch($DONE);
+
+  valueisset = true;
+
+  yield 1;
+  throw new Test262Error("This line should no be reached: generator closed by return");
+}
+
+iter = g();
+
+iter.next().then(function(result) {
+
+  assert.sameValue(++executionorder, 1);
+  assert.sameValue(result.value, 1);
+  assert.sameValue(result.done, false);
+
+  iter.next().then(function(result) {
+    assert.sameValue(++executionorder, 3);
+    assert.sameValue(result.value, undefined);
+    assert.sameValue(result.done, true);
+  }).then($DONE, $DONE);
+
+}).catch($DONE);