Upload Kmake

test/parallel/test-stream-transform-constructor-set-methods.js

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+'use strict';
+const common = require('../common');
+
+const assert = require('assert');
+const { Transform } = require('stream');
+
+const t = new Transform();
+
+assert.throws(
+  () => {
+    t.end(Buffer.from('blerg'));
+  },
+  {
+    name: 'Error',
+    code: 'ERR_METHOD_NOT_IMPLEMENTED',
+    message: 'The _transform() method is not implemented'
+  }
+);
+
+const _transform = common.mustCall((chunk, _, next) => {
+  next();
+});
+
+const _final = common.mustCall((next) => {
+  next();
+});
+
+const _flush = common.mustCall((next) => {
+  next();
+});
+
+const t2 = new Transform({
+  transform: _transform,
+  flush: _flush,
+  final: _final
+});
+
+assert.strictEqual(t2._transform, _transform);
+assert.strictEqual(t2._flush, _flush);
+assert.strictEqual(t2._final, _final);
+
+t2.end(Buffer.from('blerg'));
+t2.resume();