@yoroi/common
Version:
The Common package of Yoroi SDK
36 lines • 922 B
JavaScript
import { isLeft, isRight } from './monads';
describe('Either helper functions', () => {
describe('isLeft', () => {
it('returns true if Either is Left', () => {
const left = {
tag: 'left',
error: new Error('Error')
};
expect(isLeft(left)).toBe(true);
});
it('returns false if Either is Right', () => {
const right = {
tag: 'right',
value: 'Success'
};
expect(isLeft(right)).toBe(false);
});
});
describe('isRight', () => {
it('returns true if Either is Right', () => {
const right = {
tag: 'right',
value: 'Success'
};
expect(isRight(right)).toBe(true);
});
it('returns false if Either is Left', () => {
const left = {
tag: 'left',
error: new Error('Error')
};
expect(isRight(left)).toBe(false);
});
});
});
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