Index: test/mjsunit/harmony/debug-async-break.js |
diff --git a/test/mjsunit/harmony/debug-async-break.js b/test/mjsunit/harmony/debug-async-break.js |
new file mode 100644 |
index 0000000000000000000000000000000000000000..3b6b71bacab91ba233fbfafdf59bd416c4f363dc |
--- /dev/null |
+++ b/test/mjsunit/harmony/debug-async-break.js |
@@ -0,0 +1,76 @@ |
+// 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 |
+// Flags: --harmony-async-await --allow-natives-syntax |
+ |
+var Debug = debug.Debug; |
+ |
+function assertEqualsAsync(expected, run, msg) { |
+ var actual; |
+ var hadValue = false; |
+ var hadError = false; |
+ var promise = run(); |
+ |
+ if (typeof promise !== "object" || typeof promise.then !== "function") { |
+ throw new MjsUnitAssertionError( |
+ "Expected " + run.toString() + |
+ " to return a Promise, but it returned " + promise); |
+ } |
+ |
+ promise.then(function(value) { hadValue = true; actual = value; }, |
+ function(error) { hadError = true; actual = error; }); |
+ |
+ assertFalse(hadValue || hadError); |
+ |
+ %RunMicrotasks(); |
+ |
+ if (hadError) throw actual; |
+ |
+ assertTrue( |
+ hadValue, "Expected '" + run.toString() + "' to produce a value"); |
+ |
+ assertEquals(expected, actual, msg); |
+} |
+ |
+var break_count = 0; |
+var exception = null; |
+ |
+function listener(event, exec_state, event_data, data) { |
+ if (event != Debug.DebugEvent.Break) return; |
+ try { |
+ break_count++; |
+ var line = exec_state.frame(0).sourceLineText(); |
+ assertTrue(line.indexOf(`B${break_count}`) > 0); |
+ } catch (e) { |
+ exception = e; |
+ } |
+} |
+ |
+Debug.setListener(listener); |
+ |
+async function g() { |
+ throw 1; |
+} |
+ |
+async function f() { |
+ try { |
+ await g(); // B1 |
+ } catch (e) {} |
+ assertEquals(2, break_count); // B2 |
+ return 1; // B3 |
+} |
+ |
+Debug.setBreakPoint(f, 2); |
+Debug.setBreakPoint(f, 4); |
+Debug.setBreakPoint(f, 5); |
+ |
+f(); |
+ |
+%RunMicrotasks(); |
+ |
+assertEqualsAsync(3, async () => break_count); |
+assertEqualsAsync(null, async () => exception); |
+ |
+Debug.setListener(null); |