nodejs/test/parallel/test-internal-util-classwra...

32 lines
686 B
JavaScript

// Flags: --expose-internals
'use strict';
require('../common');
const assert = require('assert');
const util = require('internal/util');
const createClassWrapper = util.createClassWrapper;
class A {
constructor(a, b, c) {
this.a = a;
this.b = b;
this.c = c;
}
}
const B = createClassWrapper(A);
assert.strictEqual(typeof B, 'function');
assert(B(1, 2, 3) instanceof B);
assert(B(1, 2, 3) instanceof A);
assert(new B(1, 2, 3) instanceof B);
assert(new B(1, 2, 3) instanceof A);
assert.strictEqual(B.name, A.name);
assert.strictEqual(B.length, A.length);
const b = new B(1, 2, 3);
assert.strictEqual(b.a, 1);
assert.strictEqual(b.b, 2);
assert.strictEqual(b.c, 3);