mirror of
https://github.com/denoland/deno
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50 lines
1.4 KiB
JavaScript
50 lines
1.4 KiB
JavaScript
// Copyright 2018-2023 the Deno authors. All rights reserved. MIT license.
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import { assert, assertEquals, loadTestLibrary } from "./common.js";
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const testSymbol = loadTestLibrary();
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Deno.test("napi symbol1", () => {
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const sym = testSymbol.symbolNew("test");
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assertEquals(sym.toString(), "Symbol(test)");
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const myObj = {};
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const fooSym = testSymbol.symbolNew("foo");
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const otherSym = testSymbol.symbolNew("bar");
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myObj.foo = "bar";
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myObj[fooSym] = "baz";
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myObj[otherSym] = "bing";
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assertEquals(myObj.foo, "bar");
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assertEquals(myObj[fooSym], "baz");
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assertEquals(myObj[otherSym], "bing");
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});
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Deno.test("napi symbol2", () => {
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const sym = testSymbol.symbolNew("test");
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assertEquals(sym.toString(), "Symbol(test)");
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const myObj = {};
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const fooSym = testSymbol.symbolNew("foo");
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myObj.foo = "bar";
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myObj[fooSym] = "baz";
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assertEquals(Object.keys(myObj), ["foo"]);
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assertEquals(Object.getOwnPropertyNames(myObj), ["foo"]);
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assertEquals(Object.getOwnPropertySymbols(myObj), [fooSym]);
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});
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Deno.test("napi symbol3", () => {
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assert(testSymbol.symbolNew() !== testSymbol.symbolNew());
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assert(testSymbol.symbolNew("foo") !== testSymbol.symbolNew("foo"));
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assert(testSymbol.symbolNew("foo") !== testSymbol.symbolNew("bar"));
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const foo1 = testSymbol.symbolNew("foo");
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const foo2 = testSymbol.symbolNew("foo");
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const object = {
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[foo1]: 1,
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[foo2]: 2,
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};
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assertEquals(object[foo1], 1);
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assertEquals(object[foo2], 2);
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});
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