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'use strict';
const common = require('../common');
const { Transform } = require('stream');
const assert = require('assert');
{
const transform = new Transform({
transform(chunk, enc, cb) {}
});
transform.resume();
transform.on('end', common.mustCall());
transform.on('close', common.mustCall());
transform.on('finish', common.mustCall());
transform.destroy();
}
{
const transform = new Transform({
transform(chunk, enc, cb) {}
});
transform.resume();
const expected = new Error('kaboom');
transform.on('end', common.mustCall());
transform.on('finish', common.mustCall());
transform.on('close', common.mustCall());
transform.on('error', common.mustCall((err) => {
assert.strictEqual(err, expected);
}));
transform.destroy(expected);
}
{
const transform = new Transform({
transform(chunk, enc, cb) {}
});
transform._destroy = common.mustCall(function(err, cb) {
assert.strictEqual(err, expected);
cb(err);
}, 1);
const expected = new Error('kaboom');
transform.on('finish', common.mustNotCall('no finish event'));
transform.on('close', common.mustNotCall('no close event'));
transform.on('error', common.mustCall((err) => {
assert.strictEqual(err, expected);
}));
transform.destroy(expected);
}
{
const expected = new Error('kaboom');
const transform = new Transform({
transform(chunk, enc, cb) {},
destroy: common.mustCall(function(err, cb) {
assert.strictEqual(err, expected);
cb();
}, 1)
});
transform.resume();
transform.on('end', common.mustNotCall('no end event'));
transform.on('close', common.mustNotCall('no close event'));
transform.on('finish', common.mustNotCall('no finish event'));
// error is swallowed by the custom _destroy
transform.on('error', common.mustNotCall('no error event'));
transform.destroy(expected);
}
{
const transform = new Transform({
transform(chunk, enc, cb) {}
});
transform._destroy = common.mustCall(function(err, cb) {
assert.strictEqual(err, null);
cb();
}, 1);
transform.destroy();
}
{
const transform = new Transform({
transform(chunk, enc, cb) {}
});
transform.resume();
transform._destroy = common.mustCall(function(err, cb) {
assert.strictEqual(err, null);
process.nextTick(() => {
this.push(null);
this.end();
cb();
});
}, 1);
const fail = common.mustNotCall('no event');
transform.on('finish', fail);
transform.on('end', fail);
transform.on('close', fail);
transform.destroy();
transform.removeListener('end', fail);
transform.removeListener('finish', fail);
transform.on('end', common.mustCall());
transform.on('finish', common.mustCall());
}
{
const transform = new Transform({
transform(chunk, enc, cb) {}
});
const expected = new Error('kaboom');
transform._destroy = common.mustCall(function(err, cb) {
assert.strictEqual(err, null);
cb(expected);
}, 1);
transform.on('close', common.mustNotCall('no close event'));
transform.on('finish', common.mustNotCall('no finish event'));
transform.on('end', common.mustNotCall('no end event'));
transform.on('error', common.mustCall((err) => {
assert.strictEqual(err, expected);
}));
transform.destroy();
}