70 lines
2.9 KiB
JavaScript
70 lines
2.9 KiB
JavaScript
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'use strict';
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const common = require('../../common');
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const assert = require('assert');
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const readonlyErrorRE =
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/^TypeError: Cannot assign to read only property '.*' of object '#<Object>'$/;
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const getterOnlyErrorRE =
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/^TypeError: Cannot set property .* of #<Object> which has only a getter$/;
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// Testing api calls for defining properties
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const test_object = require(`./build/${common.buildType}/test_properties`);
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assert.strictEqual(test_object.echo('hello'), 'hello');
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test_object.readwriteValue = 1;
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assert.strictEqual(test_object.readwriteValue, 1);
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test_object.readwriteValue = 2;
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assert.strictEqual(test_object.readwriteValue, 2);
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assert.throws(() => { test_object.readonlyValue = 3; }, readonlyErrorRE);
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assert.ok(test_object.hiddenValue);
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// Properties with napi_enumerable attribute should be enumerable.
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const propertyNames = [];
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for (const name in test_object) {
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propertyNames.push(name);
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}
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assert.ok(propertyNames.includes('echo'));
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assert.ok(propertyNames.includes('readwriteValue'));
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assert.ok(propertyNames.includes('readonlyValue'));
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assert.ok(!propertyNames.includes('hiddenValue'));
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assert.ok(propertyNames.includes('NameKeyValue'));
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assert.ok(!propertyNames.includes('readwriteAccessor1'));
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assert.ok(!propertyNames.includes('readwriteAccessor2'));
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assert.ok(!propertyNames.includes('readonlyAccessor1'));
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assert.ok(!propertyNames.includes('readonlyAccessor2'));
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// Validate property created with symbol
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const start = 'Symbol('.length;
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const end = start + 'NameKeySymbol'.length;
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const symbolDescription =
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String(Object.getOwnPropertySymbols(test_object)[0]).slice(start, end);
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assert.strictEqual(symbolDescription, 'NameKeySymbol');
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// The napi_writable attribute should be ignored for accessors.
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const readwriteAccessor1Descriptor =
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Object.getOwnPropertyDescriptor(test_object, 'readwriteAccessor1');
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const readonlyAccessor1Descriptor =
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Object.getOwnPropertyDescriptor(test_object, 'readonlyAccessor1');
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assert.ok(readwriteAccessor1Descriptor.get != null);
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assert.ok(readwriteAccessor1Descriptor.set != null);
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assert.ok(readwriteAccessor1Descriptor.value === undefined);
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assert.ok(readonlyAccessor1Descriptor.get != null);
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assert.ok(readonlyAccessor1Descriptor.set === undefined);
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assert.ok(readonlyAccessor1Descriptor.value === undefined);
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test_object.readwriteAccessor1 = 1;
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assert.strictEqual(test_object.readwriteAccessor1, 1);
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assert.strictEqual(test_object.readonlyAccessor1, 1);
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assert.throws(() => { test_object.readonlyAccessor1 = 3; }, getterOnlyErrorRE);
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test_object.readwriteAccessor2 = 2;
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assert.strictEqual(test_object.readwriteAccessor2, 2);
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assert.strictEqual(test_object.readonlyAccessor2, 2);
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assert.throws(() => { test_object.readonlyAccessor2 = 3; }, getterOnlyErrorRE);
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assert.strictEqual(test_object.hasNamedProperty(test_object, 'echo'), true);
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assert.strictEqual(test_object.hasNamedProperty(test_object, 'hiddenValue'),
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true);
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assert.strictEqual(test_object.hasNamedProperty(test_object, 'doesnotexist'),
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false);
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