35 lines
1.3 KiB
TypeScript
35 lines
1.3 KiB
TypeScript
import utils from '../../../../src/utils/commonUtils/utils';
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describe('forEachEntry function', () => {
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const callback = jest.fn();
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it('should call the callback function for each entry in a plain object', () => {
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const obj = { a: 1, b: 2, c: 3 };
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utils.forEachEntry(obj, callback);
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expect(callback).toHaveBeenCalledTimes(3);
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expect(callback).toHaveBeenCalledWith('a', 1);
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expect(callback).toHaveBeenCalledWith('b', 2);
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expect(callback).toHaveBeenCalledWith('c', 3);
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});
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it('should call the callback function for each entry in a Map object', () => {
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const obj = new Map([['a', 1], ['b', 2], ['c', 3]]);
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utils.forEachEntry(obj, callback);
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expect(callback).toHaveBeenCalledTimes(3);
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expect(callback).toHaveBeenCalledWith('a', 1);
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expect(callback).toHaveBeenCalledWith('b', 2);
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expect(callback).toHaveBeenCalledWith('c', 3);
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});
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it('should not call the callback function for non-enumerable properties', () => {
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const obj = Object.create({}, {
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a: { value: 1, enumerable: true },
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b: { value: 2, enumerable: false },
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c: { value: 3, enumerable: true }
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});
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utils.forEachEntry(obj, callback);
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expect(callback).toHaveBeenCalledTimes(2);
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expect(callback).toHaveBeenCalledWith('a', 1);
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expect(callback).toHaveBeenCalledWith('c', 3);
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});
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});
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