Index: test/mjsunit/harmony/async-debug-step-abort-at-break.js |
diff --git a/test/mjsunit/harmony/async-debug-step-abort-at-break.js b/test/mjsunit/harmony/async-debug-step-abort-at-break.js |
new file mode 100644 |
index 0000000000000000000000000000000000000000..be1f8056a843c4accc381cdca9e70729da342caf |
--- /dev/null |
+++ b/test/mjsunit/harmony/async-debug-step-abort-at-break.js |
@@ -0,0 +1,55 @@ |
+// 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: --expose-debug-as debug --allow-natives-syntax --harmony-async-await |
+ |
+var Debug = debug.Debug; |
+var step_count = 0; |
+ |
+function listener(event, execState, eventData, data) { |
+ if (event != Debug.DebugEvent.Break) return; |
+ try { |
+ var line = execState.frame(0).sourceLineText(); |
+ print(line); |
+ var [match, expected_count, step] = /\/\/ B(\d) (\w+)$/.exec(line); |
+ assertEquals(step_count++, parseInt(expected_count)); |
+ if (step != "Continue") execState.prepareStep(Debug.StepAction[step]); |
+ } catch (e) { |
+ print(e, e.stack); |
+ quit(1); |
+ } |
+} |
+ |
+Debug.setListener(listener); |
+ |
+var late_resolve; |
+ |
+function g() { |
+ return new Promise( // B3 StepOut |
+ function(res, rej) { |
+ late_resolve = res; |
+ } |
+ ); |
+} |
+ |
+async function f() { |
+ var a = 1; |
+ debugger; // B0 StepNext |
+ a += // B1 StepNext |
+ await // B4 StepNext |
+ g(); // B2 StepIn |
+ return a; |
+} |
+ |
+f(); |
+ |
+// Starting a new step action at an intermediate break point |
+// means that we will abort the current async step. |
+debugger; // B5 StepNext |
+ |
+late_resolve(3); // B6 Continue |
+ |
+%RunMicrotasks(); |
+ |
+assertEquals(7, step_count); |