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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.mustNotCall()); transform.on('close', common.mustCall()); transform.on('finish', common.mustNotCall()); transform.destroy(); } { const transform = new Transform({ transform(chunk, enc, cb) {} }); transform.resume(); const expected = new Error('kaboom'); transform.on('end', common.mustNotCall()); transform.on('finish', common.mustNotCall()); 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.mustCall()); 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.mustCall()); 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', common.mustCall()); 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.mustCall()); 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(); }