0
0
mirror of https://github.com/nodejs/node.git synced 2024-12-01 16:10:02 +01:00
nodejs/test/parallel/test-vm-debug-context.js
Myles Borins 28e9a022df test: wrap assert.fail when passed to callback
Currently there are many instances where assert.fail is directly passed
to a callback for error handling. Unfortunately this will swallow the
error as it is the third argument of assert.fail that sets the message
not the first.

This commit adds a new function to test/common.js that simply wraps
assert.fail and calls it with the provided message.

Tip of the hat to @trott for pointing me in the direction of this.

PR-URL: https://github.com/nodejs/node/pull/3453
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Rich Trott <rtrott@gmail.com>
2015-10-24 14:42:41 -07:00

79 lines
2.4 KiB
JavaScript

/* eslint-disable no-debugger */
'use strict';
var common = require('../common');
var assert = require('assert');
var vm = require('vm');
var spawn = require('child_process').spawn;
assert.throws(function() {
vm.runInDebugContext('*');
}, /SyntaxError/);
assert.throws(function() {
vm.runInDebugContext({ toString: common.fail });
}, /AssertionError/);
assert.throws(function() {
vm.runInDebugContext('throw URIError("BAM")');
}, /URIError/);
assert.throws(function() {
vm.runInDebugContext('(function(f) { f(f) })(function(f) { f(f) })');
}, /RangeError/);
assert.equal(typeof(vm.runInDebugContext('this')), 'object');
assert.equal(typeof(vm.runInDebugContext('Debug')), 'object');
assert.strictEqual(vm.runInDebugContext(), undefined);
assert.strictEqual(vm.runInDebugContext(0), 0);
assert.strictEqual(vm.runInDebugContext(null), null);
assert.strictEqual(vm.runInDebugContext(undefined), undefined);
// See https://github.com/nodejs/node/issues/1190, accessing named interceptors
// and accessors inside a debug event listener should not crash.
(function() {
var Debug = vm.runInDebugContext('Debug');
var breaks = 0;
function ondebugevent(evt, exc) {
if (evt !== Debug.DebugEvent.Break) return;
exc.frame(0).evaluate('process.env').properties(); // Named interceptor.
exc.frame(0).evaluate('process.title').getTruncatedValue(); // Accessor.
breaks += 1;
}
function breakpoint() {
debugger;
}
assert.equal(breaks, 0);
Debug.setListener(ondebugevent);
assert.equal(breaks, 0);
breakpoint();
assert.equal(breaks, 1);
})();
// See https://github.com/nodejs/node/issues/1190, fatal errors should not
// crash the process.
var script = common.fixturesDir + '/vm-run-in-debug-context.js';
var proc = spawn(process.execPath, [script]);
var data = [];
proc.stdout.on('data', common.fail);
proc.stderr.on('data', data.push.bind(data));
proc.stderr.once('end', common.mustCall(function() {
var haystack = Buffer.concat(data).toString('utf8');
assert(/SyntaxError: Unexpected token \*/.test(haystack));
}));
proc.once('exit', common.mustCall(function(exitCode, signalCode) {
assert.equal(exitCode, 1);
assert.equal(signalCode, null);
}));
var proc = spawn(process.execPath, [script, 'handle-fatal-exception']);
proc.stdout.on('data', common.fail);
proc.stderr.on('data', common.fail);
proc.once('exit', common.mustCall(function(exitCode, signalCode) {
assert.equal(exitCode, 42);
assert.equal(signalCode, null);
}));