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Unified Diff: test/mjsunit/es6/debug-promises/promise-all-uncaught.js

Issue 1411083003: Debugger: correctly report uncaught rejections in Promise.all and Promise.race. (Closed) Base URL: https://chromium.googlesource.com/v8/v8.git@master
Patch Set: move deferred from promise to handler Created 5 years, 2 months ago
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Index: test/mjsunit/es6/debug-promises/promise-all-uncaught.js
diff --git a/test/mjsunit/es6/debug-promises/promise-all-uncaught.js b/test/mjsunit/es6/debug-promises/promise-all-uncaught.js
new file mode 100644
index 0000000000000000000000000000000000000000..d183c5cf2d3b5711f9318e670b473852603a69e2
--- /dev/null
+++ b/test/mjsunit/es6/debug-promises/promise-all-uncaught.js
@@ -0,0 +1,73 @@
+// Copyright 2015 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
+
+// Test debug events when we only listen to uncaught exceptions and a
+// Promise p3 created by Promise.all has no catch handler, and is rejected
+// because one of the Promises p2 passed to Promise.all is rejected. We
+// expect two Exception debug events to be triggered, for p2 and p3 each,
+// because neither has an user-defined catch handler.
+
+var Debug = debug.Debug;
+
+var expected_events = 2;
+var log = [];
+
+var p1 = Promise.resolve();
+p1.name = "p1";
+
+var p2 = p1.then(function() {
+ log.push("throw");
+ throw new Error("uncaught"); // event
+});
+
+p2.name = "p2";
+
+var p3 = Promise.all([p2]);
+p3.name = "p3";
+
+function listener(event, exec_state, event_data, data) {
+ if (event != Debug.DebugEvent.Exception) return;
+ try {
+ expected_events--;
+ assertTrue(expected_events >= 0);
+ assertEquals("uncaught", event_data.exception().message);
+ assertTrue(event_data.promise() instanceof Promise);
+ if (expected_events === 1) {
+ // Assert that the debug event is triggered at the throw site.
+ assertTrue(exec_state.frame(0).sourceLineText().indexOf("// event") > 0);
+ assertEquals("p2", event_data.promise().name);
+ } else {
+ assertEquals("p3", event_data.promise().name);
+ }
+ assertTrue(event_data.uncaught());
+ } catch (e) {
+ %AbortJS(e + "\n" + e.stack);
+ }
+}
+
+Debug.setBreakOnUncaughtException();
+Debug.setListener(listener);
+
+log.push("end main");
+
+function testDone(iteration) {
+ function checkResult() {
+ try {
+ assertTrue(iteration < 10);
+ if (expected_events === 0) {
+ assertEquals(["end main", "throw"], log);
+ } else {
+ testDone(iteration + 1);
+ }
+ } catch (e) {
+ %AbortJS(e + "\n" + e.stack);
+ }
+ }
+
+ %EnqueueMicrotask(checkResult);
+}
+
+testDone(0);

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