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+// Copyright 2014 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: --harmony-promises --expose-debug-as debug
+
+// Test debug events when we only listen to uncaught exceptions and
+// there is a catch handler for the exception thrown in a Promise.
+// We expect an Exception debug event with a promise to be triggered.
+
+Debug = debug.Debug;
+
+var log = [];
+var step = 0;
+
+var p = new Promise(function(resolve, reject) {
+ log.push("resolve");
+ resolve();
+});
+
+var q = p.chain(
+ function() {
+ log.push("throw");
+ throw new Error("uncaught"); // event
+ });
+
+function listener(event, exec_state, event_data, data) {
+ try {
+ // Ignore exceptions during startup in stress runs.
+ if (step >= 1) return;
+ assertEquals(["resolve", "end main", "throw"], log);
+ if (event == Debug.DebugEvent.Exception) {
+ assertEquals(0, step);
+ assertEquals("uncaught", event_data.exception().message);
+ assertTrue(event_data.promise() instanceof Promise);
+ assertEquals(q, event_data.promise());
+ assertTrue(event_data.uncaught());
+ // Assert that the debug event is triggered at the throw site.
+ assertTrue(exec_state.frame(0).sourceLineText().indexOf("// event") > 0);
+ step++;
+ }
+ } catch (e) {
+ // Signal a failure with exit code 1. This is necessary since the
+ // debugger swallows exceptions and we expect the chained function
+ // and this listener to be executed after the main script is finished.
+ print("Unexpected exception: " + e + "\n" + e.stack);
+ quit(1);
+ }
+}
+
+Debug.setBreakOnUncaughtException();
+Debug.setListener(listener);
+
+log.push("end main");