test: increase debugging information on failure

Increase the information displayed when
test-child-process-pipe-dataflow.js fails.

PR-URL: https://github.com/nodejs/node/pull/27790
Reviewed-By: Gireesh Punathil <gpunathi@in.ibm.com>
Reviewed-By: Ruben Bridgewater <ruben@bridgewater.de>
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Trivikram Kamat <trivikr.dev@gmail.com>
This commit is contained in:
Rich Trott 2019-05-20 21:55:45 -07:00
parent eba348b6ae
commit cb16872416

View File

@ -38,16 +38,19 @@ const MB = KB * KB;
grep.stdout._handle.readStart = common.mustNotCall();
[cat, grep, wc].forEach((child, index) => {
child.stderr.on('data', (d) => {
const errorHandler = (thing, type) => {
// Don't want to assert here, as we might miss error code info.
console.error(`got unexpected data from child #${index}:\n${d}`);
});
child.on('exit', common.mustCall(function(code) {
assert.strictEqual(code, 0);
console.error(`unexpected ${type} from child #${index}:\n${thing}`);
};
child.stderr.on('data', (d) => { errorHandler(d, 'data'); });
child.on('error', (err) => { errorHandler(err, 'error'); });
child.on('exit', common.mustCall((code) => {
assert.strictEqual(code, 0, `child ${index} exited with code ${code}`);
}));
});
wc.stdout.on('data', common.mustCall(function(data) {
wc.stdout.on('data', common.mustCall((data) => {
assert.strictEqual(data.toString().trim(), MB.toString());
}));
}