sameValueZero
sameValueZero.test.ts
import sameValueZero from "../../utility/others/sameValueZero";
describe('sameValueZero tests()...', () => {
test('sameValueZero should compare the value that passed', () => {
let a = Symbol('a');
let b = Symbol('b');
let c = [1, 2, 3];
let d = { a, b, c };
const received = [
{
a: 10,
b: 'duan',
},
{
a: undefined,
b: undefined,
},
{
a: null,
b: null,
},
{
a: NaN,
b: NaN,
},
{
a: +0,
b: -0,
},
{
a: -0,
b: +0,
},
{
a: 999,
b: 999,
},
{
a: 99999,
b: 11111,
},
{
a: 'duan',
b: 'duan',
},
{
a: 'duan',
b: 'duanzhaoyang',
},
{
a: true,
b: true,
},
{
a: true,
b: false,
},
{
a: a,
b: b,
},
{
a: a,
b: a,
},
{
a: c,
b: d,
},
{
a: c,
b: c,
},
];
const expected = [
false,
true,
true,
true,
true,
true,
true,
false,
true,
false,
true,
false,
false,
true,
false,
true
];
const result = received.map((v) => {
return sameValueZero(v.a, v.b);
});
result.forEach((v, i) => {
expect(v).toBe(expected[i]);
});
});
});
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