v8/test/debugger/debug/debug-clearbreakpoint.js
jgruber b8ae2249a4 [tests] Fix assertFalse(exception) anti-pattern
Some debugging tests relied on the following anti-pattern:

 let exception = false;

 try {
   /* ... some code that may throw on test failure ... */
 } catch (e) {
   exception = e;
 }

 assertFalse(exception);

This may be problematic if a falseish value is thrown.

Change-Id: I02eace4cc656fc9581928a90ac53cda4dc72b30c
Reviewed-on: https://chromium-review.googlesource.com/972822
Reviewed-by: Georg Neis <neis@chromium.org>
Commit-Queue: Jakob Gruber <jgruber@chromium.org>
Cr-Commit-Position: refs/heads/master@{#52105}
2018-03-21 10:59:46 +00:00

61 lines
2.4 KiB
JavaScript

// Copyright 2008 the V8 project authors. All rights reserved.
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following
// disclaimer in the documentation and/or other materials provided
// with the distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived
// from this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
Debug = debug.Debug
// Simple function which stores the last debug event.
let listenerComplete = false;
let exceptionThrown = false;
var breakpoint = -1;
function listener(event, exec_state, event_data, data) {
try {
if (event == Debug.DebugEvent.Break) {
// Clear once.
Debug.clearBreakPoint(breakpoint);
// Indicate that all was processed.
listenerComplete = true;
}
} catch (e) {
exceptionThrown = true;
};
};
// Add the debug event listener.
Debug.setListener(listener);
function g() {};
// Set a break point and call to invoke the debug event listener.
breakpoint = Debug.setBreakPoint(g, 0, 0);
g();
// Make sure that the debug event listener vas invoked.
assertTrue(listenerComplete, "listener did not run to completion");
assertFalse(exceptionThrown, "exception in listener")