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17 lines
710 B
17 lines
710 B
8 years ago
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'use strict';
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// https://github.com/nodejs/node/issues/10223
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require('../common');
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const assert = require('assert');
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const vm = require('vm');
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const ctx = vm.createContext();
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vm.runInContext('Object.defineProperty(this, "x", { value: 42 })', ctx);
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assert.strictEqual(ctx.x, undefined); // Not copied out by cloneProperty().
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assert.strictEqual(vm.runInContext('x', ctx), 42);
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vm.runInContext('x = 0', ctx); // Does not throw but x...
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assert.strictEqual(vm.runInContext('x', ctx), 42); // ...should be unaltered.
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assert.throws(() => vm.runInContext('"use strict"; x = 0', ctx),
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/Cannot assign to read only property 'x'/);
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assert.strictEqual(vm.runInContext('x', ctx), 42);
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