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import valueEqual from 'value-equal';
describe('undefined and null', () => {
describe('when both are undefined', () => {
it('returns true', () => {
expect(valueEqual(undefined, undefined)).toBe(true);
});
});
describe('when both are null', () => {
it('returns true', () => {
expect(valueEqual(null, null)).toBe(true);
});
});
describe('when one is null', () => {
it('returns false', () => {
expect(valueEqual(undefined, null)).toBe(false);
});
});
describe('when one is null and the other is an object', () => {
it('returns false', () => {
expect(valueEqual({}, null)).toBe(false);
expect(valueEqual(null, {})).toBe(false);
});
});
});
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