node/test/js-native-api/test_constructor/test.js
legendecas 10a346edde
n-api: define ECMAScript-compliant accessors on napi_define_class
PR-URL: https://github.com/nodejs/node/pull/27851
Fixes: https://github.com/nodejs/node/issues/26551
Fixes: https://github.com/nodejs/node-addon-api/issues/485
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Gus Caplan <me@gus.host>
Reviewed-By: Tiancheng "Timothy" Gu <timothygu99@gmail.com>
Reviewed-By: Michael Dawson <michael_dawson@ca.ibm.com>
2019-06-17 12:07:08 +02:00

63 lines
2.4 KiB
JavaScript

'use strict';
const common = require('../../common');
const assert = require('assert');
const getterOnlyErrorRE =
/^TypeError: Cannot set property .* of #<.*> which has only a getter$/;
// Testing api calls for a constructor that defines properties
const TestConstructor = require(`./build/${common.buildType}/test_constructor`);
const test_object = new TestConstructor();
assert.strictEqual(test_object.echo('hello'), 'hello');
test_object.readwriteValue = 1;
assert.strictEqual(test_object.readwriteValue, 1);
test_object.readwriteValue = 2;
assert.strictEqual(test_object.readwriteValue, 2);
assert.throws(() => { test_object.readonlyValue = 3; },
/^TypeError: Cannot assign to read only property 'readonlyValue' of object '#<MyObject>'$/);
assert.ok(test_object.hiddenValue);
// Properties with napi_enumerable attribute should be enumerable.
const propertyNames = [];
for (const name in test_object) {
propertyNames.push(name);
}
assert.ok(propertyNames.includes('echo'));
assert.ok(propertyNames.includes('readwriteValue'));
assert.ok(propertyNames.includes('readonlyValue'));
assert.ok(!propertyNames.includes('hiddenValue'));
assert.ok(!propertyNames.includes('readwriteAccessor1'));
assert.ok(!propertyNames.includes('readwriteAccessor2'));
assert.ok(!propertyNames.includes('readonlyAccessor1'));
assert.ok(!propertyNames.includes('readonlyAccessor2'));
// The napi_writable attribute should be ignored for accessors.
test_object.readwriteAccessor1 = 1;
assert.strictEqual(test_object.readwriteAccessor1, 1);
assert.strictEqual(test_object.readonlyAccessor1, 1);
assert.throws(() => { test_object.readonlyAccessor1 = 3; }, getterOnlyErrorRE);
test_object.readwriteAccessor2 = 2;
assert.strictEqual(test_object.readwriteAccessor2, 2);
assert.strictEqual(test_object.readonlyAccessor2, 2);
assert.throws(() => { test_object.readonlyAccessor2 = 3; }, getterOnlyErrorRE);
// Validate that static properties are on the class as opposed
// to the instance
assert.strictEqual(TestConstructor.staticReadonlyAccessor1, 10);
assert.strictEqual(test_object.staticReadonlyAccessor1, undefined);
// Verify that passing NULL to napi_define_class() results in the correct
// error.
assert.deepStrictEqual(TestConstructor.TestDefineClass(), {
envIsNull: 'pass',
nameIsNull: 'pass',
cbIsNull: 'pass',
cbDataIsNull: 'pass',
propertiesIsNull: 'pass',
resultIsNull: 'pass'
});