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'use strict';
const common = require('../common');
const { Writable } = require('stream');
const assert = require('assert');
// Ensure callback is always invoked before
// error is emitted. Regardless if error was
// sync or async.
{
let callbackCalled = false;
// Sync Error
const writable = new Writable({
write: common.mustCall((buf, enc, cb) => {
cb(new Error());
})
});
writable.on('error', common.mustCall(() => {
assert.strictEqual(callbackCalled, true);
}));
writable.write('hi', common.mustCall(() => {
callbackCalled = true;
}));
}
{
let callbackCalled = false;
// Async Error
const writable = new Writable({
write: common.mustCall((buf, enc, cb) => {
process.nextTick(cb, new Error());
})
});
writable.on('error', common.mustCall(() => {
assert.strictEqual(callbackCalled, true);
}));
writable.write('hi', common.mustCall(() => {
callbackCalled = true;
}));
}
{
// Sync Error
const writable = new Writable({
write: common.mustCall((buf, enc, cb) => {
cb(new Error());
})
});
writable.on('error', common.mustCall());
let cnt = 0;
// Ensure we don't live lock on sync error
while (writable.write('a'))
cnt++;
assert.strictEqual(cnt, 0);
}
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