pipe
pipe.test.ts
import { pipe } from "../../utility/function/pipe";
describe('pipe', () => {
test('pipe should invoke function from left to right', () => {
function func1() {
return 2;
}
function func2() {
return func1() * 3;
}
function func3() {
return func2() * 4;
}
function func4() {
return 'duan'
}
function func5() {
return func4() + '*' + 'zhao';
}
function func6() {
return func5() + '*' + 'yang';
}
const received = {
s1: [func1, func2, func3],
s2: [func4, func5, func6],
};
const expected = {
p1: 24,
p2: 'duan*zhao*yang',
};
const r1 = pipe(...received.s1);
const r2 = pipe(...received.s2);
expect(r1).toBe(expected.p1);
expect(r2).toBe(expected.p2);
});
});