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domains: fix handling of uncaught exceptions

Fix node exiting due to an exception being thrown rather than emitting
an 'uncaughtException' event on the process object when:
1. no error handler is set on the domain within which an error is thrown
2. an 'uncaughtException' event listener is set on the process

Also fix an issue where the process would not abort in the proper
function call if an error is thrown within a domain with no error
handler and --abort-on-uncaught-exception is used.

Fixes #3607 and #3653.

PR: #3887
PR-URL: https://github.com/nodejs/node/pull/3887
Reviewed-By: James M Snell <jasnell@gmail.com>
v0.10
Julien Gilli 9 years ago
committed by Myles Borins
parent
commit
563c359f5c
  1. 11
      lib/domain.js
  2. 76
      src/node.cc
  3. 14
      src/node.js
  4. 34
      test/common.js
  5. 241
      test/simple/test-domain-abort-on-uncaught.js
  6. 190
      test/simple/test-domain-no-error-handler-abort-on-uncaught.js
  7. 102
      test/simple/test-domain-throw-error-then-throw-from-uncaught-exception-handler.js
  8. 205
      test/simple/test-domain-uncaught-exception.js
  9. 55
      test/simple/test-domain-with-abort-on-uncaught-exception.js

11
lib/domain.js

@ -32,8 +32,13 @@ var endMethods = ['end', 'abort', 'destroy', 'destroySoon'];
// a few side effects.
events.usingDomains = true;
// it's possible to enter one domain while already inside
// another one. the stack is each entered domain.
var stack = [];
exports._stack = stack;
// let the process know we're using domains
process._usingDomains();
process._usingDomains(stack);
exports.Domain = Domain;
@ -41,10 +46,6 @@ exports.create = exports.createDomain = function(cb) {
return new Domain(cb);
};
// it's possible to enter one domain while already inside
// another one. the stack is each entered domain.
var stack = [];
exports._stack = stack;
// the active domain is always the one that we're currently in.
exports.active = null;

76
src/node.cc

@ -106,6 +106,8 @@ Persistent<String> domain_symbol;
// declared in node_internals.h
Persistent<Object> process;
static Persistent<Array> domains_stack;
static Persistent<Function> process_tickFromSpinner;
static Persistent<Function> process_tickCallback;
@ -127,6 +129,8 @@ static Persistent<String> exit_symbol;
static Persistent<String> disposed_symbol;
static Persistent<String> emitting_toplevel_domain_error_symbol;
static Persistent<String> _events_symbol;
static Persistent<String> error_symbol;
static bool print_eval = false;
static bool force_repl = false;
@ -905,25 +909,77 @@ Handle<Value> FromConstructorTemplate(Persistent<FunctionTemplate> t,
return scope.Close(t->GetFunction()->NewInstance(argc, argv));
}
static bool IsDomainActive() {
if (domain_symbol.IsEmpty())
domain_symbol = NODE_PSYMBOL("domain");
static bool DomainHasErrorHandler(const Local<Object>& domain) {
HandleScope scope;
if (_events_symbol.IsEmpty())
_events_symbol = NODE_PSYMBOL("_events");
Local<Value> domain_event_listeners_v = domain->Get(_events_symbol);
if (!domain_event_listeners_v->IsObject())
return false;
Local<Object> domain_event_listeners_o =
domain_event_listeners_v.As<Object>();
if (error_symbol.IsEmpty())
error_symbol = NODE_PSYMBOL("error");
Local<Value> domain_v = process->Get(domain_symbol);
Local<Value> domain_error_listeners_v =
domain_event_listeners_o->Get(error_symbol);
return domain_v->IsObject();
if (domain_error_listeners_v->IsFunction() ||
(domain_error_listeners_v->IsArray() &&
domain_error_listeners_v.As<Array>()->Length() > 0))
return true;
return false;
}
static bool TopDomainHasErrorHandler() {
HandleScope scope;
if (!using_domains)
return false;
Local<Array> domains_stack_array = Local<Array>::New(domains_stack);
if (domains_stack_array->Length() == 0)
return false;
uint32_t domains_stack_length = domains_stack_array->Length();
if (domains_stack_length == 0)
return false;
Local<Value> domain_v = domains_stack_array->Get(domains_stack_length - 1);
if (!domain_v->IsObject())
return false;
Local<Object> domain = domain_v.As<Object>();
if (DomainHasErrorHandler(domain))
return true;
return false;
}
bool ShouldAbortOnUncaughtException() {
Local<Value> emitting_toplevel_domain_error_v =
process->Get(emitting_toplevel_domain_error_symbol);
return !IsDomainActive() || emitting_toplevel_domain_error_v->BooleanValue();
return emitting_toplevel_domain_error_v->BooleanValue() ||
!TopDomainHasErrorHandler();
}
Handle<Value> UsingDomains(const Arguments& args) {
HandleScope scope;
if (using_domains)
return scope.Close(Undefined());
if (!args[0]->IsArray()) {
fprintf(stderr, "domains stack must be an array\n");
abort();
}
using_domains = true;
Local<Value> tdc_v = process->Get(String::New("_tickDomainCallback"));
Local<Value> ndt_v = process->Get(String::New("_nextDomainTick"));
@ -935,6 +991,9 @@ Handle<Value> UsingDomains(const Arguments& args) {
fprintf(stderr, "process._nextDomainTick assigned to non-function\n");
abort();
}
domains_stack = Persistent<Array>::New(args[0].As<Array>());
Local<Function> tdc = tdc_v.As<Function>();
Local<Function> ndt = ndt_v.As<Function>();
process->Set(String::New("_tickCallback"), tdc);
@ -2460,7 +2519,10 @@ Handle<Object> SetupProcessObject(int argc, char *argv[]) {
process->Set(String::NewSymbol("_tickInfoBox"), info_box);
// pre-set _events object for faster emit checks
process->Set(String::NewSymbol("_events"), Object::New());
if (_events_symbol.IsEmpty())
_events_symbol = NODE_PSYMBOL("_events");
process->Set(_events_symbol, Object::New());
if (emitting_toplevel_domain_error_symbol.IsEmpty())
emitting_toplevel_domain_error_symbol =

14
src/node.js

@ -229,6 +229,7 @@
// and exit if there are no listeners.
process._fatalException = function(er) {
var caught = false;
if (process.domain) {
var domain = process.domain;
var domainModule = NativeModule.require('domain');
@ -256,11 +257,17 @@
// aborting in these cases.
if (domainStack.length === 1) {
try {
// If there's no error handler, do not emit an 'error' event
// as this would throw an error, make the process exit, and thus
// prevent the process 'uncaughtException' event from being emitted
// if a listener is set.
if (process.EventEmitter.listenerCount(domain, 'error') > 0) {
// Set the _emittingTopLevelDomainError so that we know that, even
// if technically the top-level domain is still active, it would
// be ok to abort on an uncaught exception at this point
// be ok to abort on an uncaught exception at this point.
process._emittingTopLevelDomainError = true;
caught = domain.emit('error', er);
}
} finally {
process._emittingTopLevelDomainError = false;
}
@ -297,9 +304,12 @@
// current tick and no domains should be left on the stack
// between ticks.
_clearDomainsStack();
} else {
}
if (!caught) {
caught = process.emit('uncaughtException', er);
}
// if someone handled it, then great. otherwise, die in C++ land
// since that means that we'll exit the process, emit the 'exit' event
if (!caught) {

34
test/common.js

@ -226,3 +226,37 @@ exports.busyLoop = function busyLoop(time) {
;
}
};
// Returns true if the exit code "exitCode" and/or signal name "signal"
// represent the exit code and/or signal name of a node process that aborted,
// false otherwise.
exports.nodeProcessAborted = function nodeProcessAborted(exitCode, signal) {
// Depending on the compiler used, node will exit with either
// exit code 132 (SIGILL), 133 (SIGTRAP) or 134 (SIGABRT).
var expectedExitCodes = [132, 133, 134];
// On platforms using KSH as the default shell (like SmartOS),
// when a process aborts, KSH exits with an exit code that is
// greater than 256, and thus the exit code emitted with the 'exit'
// event is null and the signal is set to either SIGILL, SIGTRAP,
// or SIGABRT (depending on the compiler).
var expectedSignals = ['SIGILL', 'SIGTRAP', 'SIGABRT'];
// On Windows, v8's base::OS::Abort triggers a debug breakpoint,
// which makes the process exit with code -2147483645.
if (process.platform === 'win32')
expectedExitCodes = [-2147483645];
// When using --abort-on-uncaught-exception, V8 will use
// base::OS::Abort to terminate the process.
// Depending on the compiler used, the shell or other aspects of
// the platform used to build the node binary, this will actually
// make V8 exit by aborting or by raising a signal. In any case,
// one of them (exit code or signal) needs to be set to one of
// the expected exit codes or signals.
if (signal !== null) {
return expectedSignals.indexOf(signal) > -1;
} else {
return expectedExitCodes.indexOf(exitCode) > -1;
}
};

241
test/simple/test-domain-abort-on-uncaught.js

@ -0,0 +1,241 @@
'use strict';
// This test makes sure that when using --abort-on-uncaught-exception and
// when throwing an error from within a domain that has an error handler
// setup, the process _does not_ abort.
var common = require('../common');
var assert = require('assert');
var domain = require('domain');
var child_process = require('child_process');
var errorHandlerCalled = false;
var tests = [
function nextTick() {
var d = domain.create();
d.once('error', function(err) {
errorHandlerCalled = true;
});
d.run(function() {
process.nextTick(function() {
throw new Error('exceptional!');
});
});
},
function timer() {
var d = domain.create();
d.on('error', function(err) {
errorHandlerCalled = true;
});
d.run(function() {
setTimeout(function() {
throw new Error('exceptional!');
}, 33);
});
},
function immediate() {
var d = domain.create();
d.on('error', function errorHandler() {
errorHandlerCalled = true;
});
d.run(function() {
setImmediate(function() {
throw new Error('boom!');
});
});
},
function timerPlusNextTick() {
var d = domain.create();
d.on('error', function(err) {
errorHandlerCalled = true;
});
d.run(function() {
setTimeout(function() {
process.nextTick(function() {
throw new Error('exceptional!');
});
}, 33);
});
},
function firstRun() {
var d = domain.create();
d.on('error', function(err) {
errorHandlerCalled = true;
});
d.run(function() {
throw new Error('exceptional!');
});
},
function fsAsync() {
var d = domain.create();
d.on('error', function errorHandler() {
errorHandlerCalled = true;
});
d.run(function() {
var fs = require('fs');
fs.exists('/non/existing/file', function onExists(exists) {
throw new Error('boom!');
});
});
},
function netServer() {
var net = require('net');
var d = domain.create();
d.on('error', function(err) {
errorHandlerCalled = true;
});
d.run(function() {
var server = net.createServer(function(conn) {
conn.pipe(conn);
});
server.listen(common.PORT, '0.0.0.0', function() {
var conn = net.connect(common.PORT, '0.0.0.0');
conn.once('data', function() {
throw new Error('ok');
});
conn.end('ok');
server.close();
});
});
},
function firstRunNestedWithErrorHandler() {
var d = domain.create();
var d2 = domain.create();
d2.on('error', function errorHandler() {
errorHandlerCalled = true;
});
d.run(function() {
d2.run(function() {
throw new Error('boom!');
});
});
},
function timeoutNestedWithErrorHandler() {
var d = domain.create();
var d2 = domain.create();
d2.on('error', function errorHandler() {
errorHandlerCalled = true;
});
d.run(function() {
d2.run(function() {
setTimeout(function() {
console.log('foo');
throw new Error('boom!');
}, 33);
});
});
},
function setImmediateNestedWithErrorHandler() {
var d = domain.create();
var d2 = domain.create();
d2.on('error', function errorHandler() {
errorHandlerCalled = true;
});
d.run(function() {
d2.run(function() {
setImmediate(function() {
throw new Error('boom!');
});
});
});
},
function nextTickNestedWithErrorHandler() {
var d = domain.create();
var d2 = domain.create();
d2.on('error', function errorHandler() {
errorHandlerCalled = true;
});
d.run(function() {
d2.run(function() {
process.nextTick(function() {
throw new Error('boom!');
});
});
});
},
function fsAsyncNestedWithErrorHandler() {
var d = domain.create();
var d2 = domain.create();
d2.on('error', function errorHandler() {
errorHandlerCalled = true;
});
d.run(function() {
d2.run(function() {
var fs = require('fs');
fs.exists('/non/existing/file', function onExists(exists) {
throw new Error('boom!');
});
});
});
}
];
if (process.argv[2] === 'child') {
var testIndex = +process.argv[3];
tests[testIndex]();
process.on('exit', function onExit() {
assert.equal(errorHandlerCalled, true);
});
} else {
tests.forEach(function(test, testIndex) {
var testCmd = '';
if (process.platform !== 'win32') {
// Do not create core files, as it can take a lot of disk space on
// continuous testing and developers' machines
testCmd += 'ulimit -c 0 && ';
}
testCmd += process.argv[0];
testCmd += ' ' + '--abort-on-uncaught-exception';
testCmd += ' ' + process.argv[1];
testCmd += ' ' + 'child';
testCmd += ' ' + testIndex;
var child = child_process.exec(testCmd);
child.on('exit', function onExit(code, signal) {
assert.equal(code, 0, 'Test at index ' + testIndex +
' should have exited with exit code 0 but instead exited with code ' +
code + ' and signal ' + signal);
});
});
}

190
test/simple/test-domain-no-error-handler-abort-on-uncaught.js

@ -0,0 +1,190 @@
'use strict';
/*
* This test makes sure that when using --abort-on-uncaught-exception and
* when throwing an error from within a domain that does not have an error
* handler setup, the process aborts.
*/
var common = require('../common');
var assert = require('assert');
var domain = require('domain');
var child_process = require('child_process');
var tests = [
function() {
var d = domain.create();
d.run(function() {
throw new Error('boom!');
});
},
function() {
var d = domain.create();
var d2 = domain.create();
d.run(function() {
d2.run(function() {
throw new Error('boom!');
});
});
},
/*
* In this case, only the domain at the top of the stack "d" has an error
* handler, but the domain from which the error is thrown doesn't have an
* error handler. To be consistent with the way domains bubble up errors,
* this test case _should not_ make the process abort. However it was
* determined that making such a change in v0.10.x might be a breaking
* change, so instead this test case makes sure the process aborts.
*/
function() {
var d = domain.create();
var d2 = domain.create();
d.on('error', function errorHandler() {
});
d.run(function() {
d2.run(function() {
throw new Error('boom!');
});
});
},
function() {
var d = domain.create();
d.run(function() {
setTimeout(function() {
throw new Error('boom!');
});
});
},
function() {
var d = domain.create();
d.run(function() {
setImmediate(function() {
throw new Error('boom!');
});
});
},
function() {
var d = domain.create();
d.run(function() {
process.nextTick(function() {
throw new Error('boom!');
});
});
},
function() {
var d = domain.create();
d.run(function() {
var fs = require('fs');
fs.exists('/non/existing/file', function onExists(exists) {
throw new Error('boom!');
});
});
},
function() {
var d = domain.create();
var d2 = domain.create();
d.on('error', function errorHandler() {
});
d.run(function() {
d2.run(function() {
setTimeout(function() {
throw new Error('boom!');
});
});
});
},
function() {
var d = domain.create();
var d2 = domain.create();
d.on('error', function errorHandler() {
});
d.run(function() {
d2.run(function() {
setImmediate(function() {
throw new Error('boom!');
});
});
});
},
function() {
var d = domain.create();
var d2 = domain.create();
d.on('error', function errorHandler() {
});
d.run(function() {
d2.run(function() {
process.nextTick(function() {
throw new Error('boom!');
});
});
});
},
function() {
var d = domain.create();
var d2 = domain.create();
d.on('error', function errorHandler() {
});
d.run(function() {
d2.run(function() {
var fs = require('fs');
fs.exists('/non/existing/file', function onExists(exists) {
throw new Error('boom!');
});
});
});
},
];
if (process.argv[2] === 'child') {
var testIndex = +process.argv[3];
tests[testIndex]();
} else {
tests.forEach(function(test, testIndex) {
var testCmd = '';
if (process.platform !== 'win32') {
// Do not create core files, as it can take a lot of disk space on
// continuous testing and developers' machines
testCmd += 'ulimit -c 0 && ';
}
testCmd += process.argv[0];
testCmd += ' ' + '--abort-on-uncaught-exception';
testCmd += ' ' + process.argv[1];
testCmd += ' ' + 'child';
testCmd += ' ' + testIndex;
var child = child_process.exec(testCmd);
child.on('exit', function onExit(exitCode, signal) {
var errMsg = 'Test at index ' + testIndex + ' should have aborted ' +
'but instead exited with exit code ' + exitCode + ' and signal ' +
signal;
assert(common.nodeProcessAborted(exitCode, signal), errMsg);
});
});
}

102
test/simple/test-domain-throw-error-then-throw-from-uncaught-exception-handler.js

@ -0,0 +1,102 @@
'use strict';
// This test makes sure that when throwing an error from a domain, and then
// handling that error in an uncaughtException handler by throwing an error
// again, the exit code, signal and error messages are the ones we expect with
// and without using --abort-on-uncaught-exception.
var common = require('../common');
var assert = require('assert');
var child_process = require('child_process');
var domain = require('domain');
var uncaughtExceptionHandlerErrMsg = 'boom from uncaughtException handler';
var domainErrMsg = 'boom from domain';
var RAN_UNCAUGHT_EXCEPTION_HANDLER_EXIT_CODE = 42;
var d;
if (process.argv[2] === 'child') {
process.on('uncaughtException', common.mustCall(function onUncaught() {
if (process.execArgv.indexOf('--abort-on-uncaught-exception') !== -1) {
// When passing --abort-on-uncaught-exception to the child process,
// we want to make sure that this handler (the process' uncaughtException
// event handler) wasn't called. Unfortunately we can't parse the child
// process' output to do that, since on Windows the standard error output
// is not properly flushed in V8's Isolate::Throw right before the
// process aborts due to an uncaught exception, and thus the error
// message representing the error that was thrown cannot be read by the
// parent process. So instead of parsing the child process' stdandard
// error, the parent process will check that in the case
// --abort-on-uncaught-exception was passed, the process did not exit
// with exit code RAN_UNCAUGHT_EXCEPTION_HANDLER_EXIT_CODE.
process.exit(RAN_UNCAUGHT_EXCEPTION_HANDLER_EXIT_CODE);
} else {
// On the other hand, when not passing --abort-on-uncaught-exception to
// the node process, we want to throw in this event handler to make sure
// that the proper error message, exit code and signal are the ones we
// expect.
throw new Error(uncaughtExceptionHandlerErrMsg);
}
}));
d = domain.create();
d.run(common.mustCall(function() {
throw new Error(domainErrMsg);
}));
} else {
runTestWithoutAbortOnUncaughtException();
runTestWithAbortOnUncaughtException();
}
function runTestWithoutAbortOnUncaughtException() {
child_process.exec(createTestCmdLine(),
function onTestDone(err, stdout, stderr) {
// When _not_ passing --abort-on-uncaught-exception, the process'
// uncaughtException handler _must_ be called, and thus the error
// message must include only the message of the error thrown from the
// process' uncaughtException handler.
assert(stderr.indexOf(uncaughtExceptionHandlerErrMsg) !== -1,
'stderr output must include proper uncaughtException handler\'s ' +
'error\'s message');
assert(stderr.indexOf(domainErrMsg) === -1, 'stderr output must not ' +
'include domain\'s error\'s message');
assert.notEqual(err.code, 0,
'child process should have exited with a non-zero exit code, ' +
'but did not');
});
}
function runTestWithAbortOnUncaughtException() {
child_process.exec(createTestCmdLine({
withAbortOnUncaughtException: true
}), function onTestDone(err, stdout, stderr) {
assert.notEqual(err.code, RAN_UNCAUGHT_EXCEPTION_HANDLER_EXIT_CODE,
'child process should not have run its uncaughtException event ' +
'handler');
assert(common.nodeProcessAborted(err.code, err.signal),
'process should have aborted, but did not');
});
}
function createTestCmdLine(options) {
var testCmd = '';
if (process.platform !== 'win32') {
// Do not create core files, as it can take a lot of disk space on
// continuous testing and developers' machines
testCmd += 'ulimit -c 0 && ';
}
testCmd += process.argv[0];
if (options && options.withAbortOnUncaughtException) {
testCmd += ' ' + '--abort-on-uncaught-exception';
}
testCmd += ' ' + process.argv[1];
testCmd += ' ' + 'child';
return testCmd;
}

205
test/simple/test-domain-uncaught-exception.js

@ -0,0 +1,205 @@
'use strict';
/*
* The goal of this test is to make sure that errors thrown within domains
* are handled correctly. It checks that the process' 'uncaughtException' event
* is emitted when appropriate, and not emitted when it shouldn't. It also
* checks that the proper domain error handlers are called when they should
* be called, and not called when they shouldn't.
*/
var common = require('../common');
var assert = require('assert');
var domain = require('domain');
var child_process = require('child_process');
var uncaughtExceptions = {};
var tests = [];
function test1() {
/*
* Throwing from an async callback from within a domain that doesn't have
* an error handler must result in emitting the process' uncaughtException
* event.
*/
var d = domain.create();
d.run(function() {
setTimeout(function onTimeout() {
throw new Error('boom!');
});
});
}
tests.push({
fn: test1,
expectedMessages: ['uncaughtException']
});
function test2() {
/*
* Throwing from from within a domain that doesn't have an error handler must
* result in emitting the process' uncaughtException event.
*/
var d2 = domain.create();
d2.run(function() {
throw new Error('boom!');
});
}
tests.push({
fn: test2,
expectedMessages: ['uncaughtException']
});
function test3() {
/*
* This test creates two nested domains: d3 and d4. d4 doesn't register an
* error handler, but d3 does. The error is handled by the d3 domain and thus
* an 'uncaughtException' event should _not_ be emitted.
*/
var d3 = domain.create();
var d4 = domain.create();
d3.on('error', function onErrorInD3Domain(err) {
process.send('errorHandledByDomain');
});
d3.run(function() {
d4.run(function() {
throw new Error('boom!');
});
});
}
tests.push({
fn: test3,
expectedMessages: ['errorHandledByDomain']
});
function test4() {
/*
* This test creates two nested domains: d5 and d6. d6 doesn't register an
* error handler. When the timer's callback is called, because async
* operations like timer callbacks are bound to the domain that was active
* at the time of their creation, and because both d5 and d6 domains have
* exited by the time the timer's callback is called, its callback runs with
* only d6 on the domains stack. Since d6 doesn't register an error handler,
* the process' uncaughtException event should be emitted.
*/
var d5 = domain.create();
var d6 = domain.create();
d5.on('error', function onErrorInD2Domain(err) {
process.send('errorHandledByDomain');
});
d5.run(function () {
d6.run(function() {
setTimeout(function onTimeout() {
throw new Error('boom!');
});
});
});
}
tests.push({
fn: test4,
expectedMessages: ['uncaughtException']
});
function test5() {
/*
* This test creates two nested domains: d7 and d8. d8 _does_ register an
* error handler, so throwing within that domain should not emit an uncaught
* exception.
*/
var d7 = domain.create();
var d8 = domain.create();
d8.on('error', function onErrorInD3Domain(err) {
process.send('errorHandledByDomain')
});
d7.run(function() {
d8.run(function() {
throw new Error('boom!');
});
});
}
tests.push({
fn: test5,
expectedMessages: ['errorHandledByDomain']
});
function test6() {
/*
* This test creates two nested domains: d9 and d10. d10 _does_ register an
* error handler, so throwing within that domain in an async callback should
* _not_ emit an uncaught exception.
*/
var d9 = domain.create();
var d10 = domain.create();
d10.on('error', function onErrorInD2Domain(err) {
process.send('errorHandledByDomain');
});
d9.run(function () {
d10.run(function() {
setTimeout(function onTimeout() {
throw new Error('boom!');
});
});
});
}
tests.push({
fn: test6,
expectedMessages: ['errorHandledByDomain']
});
if (process.argv[2] === 'child') {
var testIndex = process.argv[3];
process.on('uncaughtException', function onUncaughtException() {
process.send('uncaughtException');
});
tests[testIndex].fn();
} else {
// Run each test's function in a child process. Listen on
// messages sent by each child process and compare expected
// messages defined for each test with the actual received messages.
tests.forEach(function doTest(test, testIndex) {
var testProcess = child_process.fork(__filename, ['child', testIndex]);
testProcess.on('message', function onMsg(msg) {
if (test.messagesReceived === undefined)
test.messagesReceived = [];
test.messagesReceived.push(msg);
});
testProcess.on('disconnect', common.mustCall(function onExit() {
// Make sure that all expected messages were sent from the
// child process
test.expectedMessages.forEach(function(expectedMessage) {
if (test.messagesReceived === undefined ||
test.messagesReceived.indexOf(expectedMessage) === -1)
assert(false, 'test ' + test.fn.name +
' should have sent message: ' + expectedMessage +
' but didn\'t');
});
if (test.messagesReceived) {
test.messagesReceived.forEach(function(receivedMessage) {
if (test.expectedMessages.indexOf(receivedMessage) === -1) {
assert(false, 'test ' + test.fn.name +
' should not have sent message: ' + receivedMessage +
' but did');
}
});
}
}));
});
}

55
test/simple/test-domain-with-abort-on-uncaught-exception.js

@ -21,6 +21,8 @@
var assert = require('assert');
var common = require('../common');
/*
* The goal of this test is to make sure that:
*
@ -131,50 +133,23 @@ if (process.argv[2] === 'child') {
});
child.on('exit', function onChildExited(exitCode, signal) {
// If the top-level domain's error handler does not throw,
// the process must exit gracefully, whether or not
// --abort-on-uncaught-exception was passed on the command line
var expectedExitCode = 0;
// On some platforms with KSH being the default shell (like SmartOS),
// when a process aborts, KSH exits with an exit code that is greater
// than 256, and thus the exit code emitted with the 'exit' event is
// null and the signal is set to SIGABRT. For these platforms only,
// and when the test is expected to abort, check the actual signal
// with the expected signal instead of the exit code.
var expectedSignal;
// When throwing errors from the top-level domain error handler
// outside of a try/catch block, the process should not exit gracefully
if (!options.useTryCatch && options.throwInDomainErrHandler) {
expectedExitCode = 7;
if (cmdLineOption === '--abort-on-uncaught-exception') {
// If the top-level domain's error handler throws, and only if
// --abort-on-uncaught-exception is passed on the command line,
// the process must abort.
expectedExitCode = 134;
// On linux, v8 raises SIGTRAP when aborting because
// the "debug break" flag is on by default
if (process.platform === 'linux')
expectedExitCode = 133;
if (process.platform === 'sunos') {
expectedExitCode = null;
expectedSignal = 'SIGABRT';
}
// On Windows, v8's OS::Abort also triggers a debug breakpoint
// which makes the process exit with code -2147483645
if (process.platform === 'win32') {
expectedExitCode = -2147483645;
}
assert(common.nodeProcessAborted(exitCode, signal),
'process should have aborted, but did not');
} else {
// By default, uncaught exceptions make node exit with an exit
// code of 7.
assert.equal(exitCode, 7);
assert.equal(signal, null);
}
} else {
// If the top-level domain's error handler does not throw,
// the process must exit gracefully, whether or not
// --abort_on_uncaught_exception was passed on the command line
assert.equal(exitCode, 0);
assert.equal(signal, null);
}
if (expectedSignal)
assert.equal(signal, expectedSignal)
assert.equal(exitCode, expectedExitCode);
});
}
}

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