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53 lines
1.4 KiB
53 lines
1.4 KiB
// Should occur before anything else
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import './globalPatch';
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import 'ses/lockdown';
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import '../../app/scripts/runLockdown';
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import assert from 'assert'; /* eslint-disable-line import/first,import/order */
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describe('Promise global is immutable', function () {
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it('throws when reassinging promise (syntax 1)', function () {
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try {
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// eslint-disable-next-line no-global-assign,no-native-reassign
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Promise = {};
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assert.fail('did not throw error');
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} catch (err) {
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assert.ok(err, 'did throw error');
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}
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});
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it('throws when reassinging promise (syntax 2)', function () {
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try {
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global.Promise = {};
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assert.fail('did not throw error');
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} catch (err) {
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assert.ok(err, 'did throw error');
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}
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});
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it('throws when mutating existing Promise property', function () {
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try {
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Promise.all = () => undefined;
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assert.fail('did not throw error');
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} catch (err) {
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assert.ok(err, 'did throw error');
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}
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});
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it('throws when adding new Promise property', function () {
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try {
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Promise.foo = 'bar';
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assert.fail('did not throw error');
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} catch (err) {
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assert.ok(err, 'did throw error');
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}
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});
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it('throws when deleting Promise from global', function () {
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try {
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delete global.Promise;
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assert.fail('did not throw error');
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} catch (err) {
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assert.ok(err, 'did throw error');
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}
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});
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});
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