reject-in-constructor.js 1.04 KB
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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.


// Test debug events when we only listen to uncaught exceptions and
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// the Promise is rejected in the Promise constructor.
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// We expect an Exception debug event with a promise to be triggered.

Debug = debug.Debug;

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var steps = 0;
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var exception = null;

function listener(event, exec_state, event_data, data) {
  try {
    if (event == Debug.DebugEvent.Exception) {
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      steps++;
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      assertEquals("uncaught", event_data.exception().message);
      assertTrue(event_data.uncaught());
      // Assert that the debug event is triggered at the throw site.
      assertTrue(exec_state.frame(0).sourceLineText().indexOf("// event") > 0);
    }
  } catch (e) {
    exception = e;
  }
}

Debug.setBreakOnUncaughtException();
Debug.setListener(listener);

var p = new Promise(function(resolve, reject) {
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  reject(new Error("uncaught"));  // event
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});

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assertEquals(1, steps);
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assertNull(exception);