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'use strict';
const path = require('path');
const spawn = require('child_process').spawn;
const assert = require('assert');
const common = require('../common');
const fixture = path.join(
common.fixturesDir,
'debugger-util-regression-fixture.js'
);
const args = [
'debug',
`--port=${common.PORT}`,
fixture
];
const proc = spawn(process.execPath, args, { stdio: 'pipe' });
proc.stdout.setEncoding('utf8');
proc.stderr.setEncoding('utf8');
function fail() {
common.fail('the program should not hang');
}
const timer = setTimeout(fail, common.platformTimeout(4000));
let stdout = '';
let stderr = '';
let nextCount = 0;
proc.stdout.on('data', (data) => {
stdout += data;
if (stdout.includes('> 1') && nextCount < 1 ||
stdout.includes('> 2') && nextCount < 2 ||
stdout.includes('> 3') && nextCount < 3 ||
stdout.includes('> 4') && nextCount < 4) {
nextCount++;
proc.stdin.write('n\n');
}
else if (stdout.includes('{ a: \'b\' }')) {
clearTimeout(timer);
proc.stdin.write('.exit\n');
}
else if (stdout.includes('program terminated')) {
// Catch edge case present in v4.x
// process will terminate after call to util.inspect
common.fail('the program should not terminate');
}
});
proc.stderr.on('data', (data) => stderr += data);
// FIXME
// This test has been periodically failing on certain systems due to
// uncaught errors on proc.stdin. This will stop the process from
// exploding but is still not an elegant solution. Likely a deeper bug
// causing this problem.
proc.stdin.on('error', (err) => {
console.error(err);
});
process.on('exit', (code) => {
assert.equal(code, 0, 'the program should exit cleanly');
assert.equal(stdout.includes('{ a: \'b\' }'), true,
'the debugger should print the result of util.inspect');
assert.equal(stderr, '', 'stderr should be empty');
});