Userland/Libraries/LibJS/Tests/variable-undefined.js at master

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serenity / Userland / Libraries / LibJS / Tests / variable-undefined.js

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 1test("basic functionality", () => {
 2    function foo(a) {
 3        return a;
 4    }
 5
 6    var x = undefined;
 7    expect(x).toBeUndefined();
 8    expect(foo(x)).toBeUndefined();
 9
10    var o = {};
11    o.x = x;
12    expect(o.x).toBeUndefined();
13    expect(o.x).toBe(x);
14});