32 lines
900 B
JavaScript
32 lines
900 B
JavaScript
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var inspect = require('../');
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var test = require('tape');
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var withoutProperty = function (object, property, fn) {
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var original;
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if (Object.getOwnPropertyDescriptor) {
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original = Object.getOwnPropertyDescriptor(object, property);
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} else {
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original = object[property];
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}
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delete object[property];
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try {
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fn();
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} finally {
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if (Object.getOwnPropertyDescriptor) {
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Object.defineProperty(object, property, original);
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} else {
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object[property] = original;
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}
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}
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};
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test('when Object#hasOwnProperty is deleted', function (t) {
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t.plan(1);
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var arr = [1, , 3];
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Array.prototype[1] = 2; // this is needed to account for "in" vs "hasOwnProperty"
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withoutProperty(Object.prototype, 'hasOwnProperty', function () {
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t.equal(inspect(arr), '[ 1, , 3 ]');
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});
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delete Array.prototype[1];
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});
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