29 lines
732 B
JavaScript
29 lines
732 B
JavaScript
load("test-common.js");
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try {
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assert(Reflect.isExtensible.length === 1);
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[null, undefined, "foo", 123, NaN, Infinity].forEach(value => {
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assertThrowsError(() => {
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Reflect.isExtensible(value);
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}, {
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error: TypeError,
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message: "First argument of Reflect.isExtensible() must be an object"
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});
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});
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assert(Reflect.isExtensible({}) === true);
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var o = {};
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o.foo = "foo";
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assert(o.foo === "foo");
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assert(Reflect.isExtensible(o) === true);
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Reflect.preventExtensions(o);
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o.bar = "bar";
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assert(o.bar === undefined);
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assert(Reflect.isExtensible(o) === false);
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console.log("PASS");
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} catch (e) {
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console.log("FAIL: " + e);
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}
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