b8ae2249a4
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}
99 lines
3.4 KiB
JavaScript
99 lines
3.4 KiB
JavaScript
// Copyright 2008 the V8 project authors. All rights reserved.
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions are
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// met:
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//
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// * Redistributions of source code must retain the above copyright
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// notice, this list of conditions and the following disclaimer.
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// * Redistributions in binary form must reproduce the above
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// copyright notice, this list of conditions and the following
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// disclaimer in the documentation and/or other materials provided
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// with the distribution.
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// * Neither the name of Google Inc. nor the names of its
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// contributors may be used to endorse or promote products derived
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// from this software without specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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// The functions used for testing backtraces. They are at the top to make the
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// testing of source line/column easier.
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function f(x, y) {
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a=1;
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};
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var m = (0, function() {
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new f(1);
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});
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function g() {
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m();
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};
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Debug = debug.Debug
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let listenerCalled = false;
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let exceptionThrown = false;
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function listener(event, exec_state, event_data, data) {
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try {
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if (event == Debug.DebugEvent.Break) {
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// The expected backtrace is
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// 0: f
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// 1: m
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// 2: g
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// 3: [anonymous]
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assertEquals(4, exec_state.frameCount());
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var frame0 = exec_state.frame(0);
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assertEquals("f", frame0.func().name());
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assertEquals(0, frame0.index());
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assertEquals(31, frame0.sourceLine());
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assertEquals(2, frame0.sourceColumn());
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assertEquals(2, frame0.localCount());
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assertEquals("x", frame0.localName(0));
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assertEquals(1, frame0.localValue(0).value());
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assertEquals("y", frame0.localName(1));
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assertEquals(undefined, frame0.localValue(1).value());
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var frame1 = exec_state.frame(1);
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assertEquals("m", frame1.func().name());
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assertEquals(1, frame1.index());
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assertEquals(35, frame1.sourceLine());
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assertEquals(2, frame1.sourceColumn());
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assertEquals(0, frame1.localCount());
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var frame2 = exec_state.frame(2);
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assertEquals("g", frame2.func().name());
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var frame3 = exec_state.frame(3);
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assertEquals("", frame3.func().name());
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listenerCalled = true;
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}
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} catch (e) {
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exceptionThrown = true;
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};
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};
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// Add the debug event listener.
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Debug.setListener(listener);
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// Set a break point and call to invoke the debug event listener.
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Debug.setBreakPoint(f, 0, 0);
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g();
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// Make sure that the debug event listener vas invoked.
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assertFalse(exceptionThrown, "exception in listener");
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assertTrue(listenerCalled);
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