react-use-countdown/test/sample.test.js
2020-08-28 15:15:51 +07:00

26 lines
695 B
JavaScript

import {sample} from "../src"
// Describe : top level to describe a block of test below is for what
describe("Test Sample Function", () => {
// Test : is run for each test
test("Test N is Undefined", () => {
expect(sample(undefined)).toBe(undefined) // expect sample(undefined) return undefined
})
test("Test N is Null", () => {
expect(sample(null)).toBe(undefined)
})
test("Test N is not number",() => {
expect(sample("Hello")).toBe(undefined)
})
test("Test Normal Number",() => {
expect(sample(0)).toBe(0)
expect(sample(1)).toBe(1)
expect(sample(2)).toBe(4)
expect(sample(100)).toBe(10000)
})
})