node/test/parallel/test-vm-sigint.js
Ruben Bridgewater e038d6a1cd
test: refactor common.expectsError
This completely refactors the `expectsError` behavior: so far it's
almost identical to `assert.throws(fn, object)` in case it was used
with a function as first argument. It had a magical property check
that allowed to verify a functions `type` in case `type` was passed
used in the validation object. This pattern is now completely removed
and `assert.throws()` should be used instead.

The main intent for `common.expectsError()` is to verify error cases
for callback based APIs. This is now more flexible by accepting all
validation possibilites that `assert.throws()` accepts as well. No
magical properties exist anymore. This reduces surprising behavior
for developers who are not used to the Node.js core code base.

This has the side effect that `common` is used significantly less
frequent.

PR-URL: https://github.com/nodejs/node/pull/31092
Reviewed-By: Rich Trott <rtrott@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Trivikram Kamat <trivikr.dev@gmail.com>
2019-12-31 15:54:20 +01:00

53 lines
1.4 KiB
JavaScript

'use strict';
const common = require('../common');
if (common.isWindows) {
// No way to send CTRL_C_EVENT to processes from JS right now.
common.skip('platform not supported');
}
const assert = require('assert');
const vm = require('vm');
const spawn = require('child_process').spawn;
if (process.argv[2] === 'child') {
const method = process.argv[3];
const listeners = +process.argv[4];
assert.ok(method);
assert.ok(Number.isInteger(listeners));
const script = `process.send('${method}'); while(true) {}`;
const args = method === 'runInContext' ?
[vm.createContext({ process })] :
[];
const options = { breakOnSigint: true };
for (let i = 0; i < listeners; i++)
process.on('SIGINT', common.mustNotCall());
assert.throws(
() => { vm[method](script, ...args, options); },
{
code: 'ERR_SCRIPT_EXECUTION_INTERRUPTED',
message: 'Script execution was interrupted by `SIGINT`'
});
return;
}
for (const method of ['runInThisContext', 'runInContext']) {
for (const listeners of [0, 1, 2]) {
const args = [__filename, 'child', method, listeners];
const child = spawn(process.execPath, args, {
stdio: [null, 'pipe', 'inherit', 'ipc']
});
child.on('message', common.mustCall(() => {
process.kill(child.pid, 'SIGINT');
}));
child.on('close', common.mustCall((code, signal) => {
assert.strictEqual(signal, null);
assert.strictEqual(code, 0);
}));
}
}