v8/test/mjsunit/debug-suspend.js

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// 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.
// Flags: --expose-debug-as debug
// Get the Debug object exposed from the debug context global object.
Debug = debug.Debug
// Simple function which stores the last debug event.
listenerComplete = false;
exception = false;
var base_backtrace_request = '"seq":0,"type":"request","command":"backtrace"'
var base_suspend_request = '"seq":0,"type":"request","command":"suspend"'
function safeEval(code) {
try {
return eval('(' + code + ')');
} catch (e) {
assertEquals(void 0, e);
return undefined;
}
}
function testArguments(exec_state) {
// Get the debug command processor in running state.
var dcp = exec_state.debugCommandProcessor(true);
assertTrue(dcp.isRunning());
var backtrace_request = '{' + base_backtrace_request + '}'
var backtrace_response = safeEval(dcp.processDebugJSONRequest(backtrace_request));
assertTrue(backtrace_response.success);
assertTrue(backtrace_response.running, backtrace_request + ' -> expected running');
assertTrue(dcp.isRunning());
var suspend_request = '{' + base_suspend_request + '}'
var suspend_response = safeEval(dcp.processDebugJSONRequest(suspend_request));
assertTrue(suspend_response.success);
assertFalse(suspend_response.running, suspend_request + ' -> expected not running');
assertFalse(dcp.isRunning());
}
function listener(event, exec_state, event_data, data) {
try {
if (event == Debug.DebugEvent.Break) {
// Test simple suspend request.
testArguments(exec_state);
// Indicate that all was processed.
listenerComplete = true;
}
} catch (e) {
exception = e
};
};
// Add the debug event listener.
Debug.setListener(listener);
// Stop debugger and check that suspend command changes running flag.
debugger;
assertFalse(exception, "exception in listener")
// Make sure that the debug event listener vas invoked.
assertTrue(listenerComplete, "listener did not run to completion");