rescript-jest
Install
npm i @greenlabs/rescript-jest --dev
or
yarn add @greenlabs/rescript-jest --dev"bs-dev-dependencies": [
"@greenlabs/rescript-jest"
]Usage
open Jest
open Expect
describe("Test my module", () => {
let myMockFunction = JestJs.make2((msg, msg2) => msg ++ msg2)
let setup = () => {
(myMockFunction->Mock.fn)("Hello ", "world!")
}
describe("When call setup", () => {
beforeEach(() => {
setup()
})
afterEach(() => {
myMockFunction->Mock.mockClear
})
test("myFunction is should called", () => {
expect(myMockFunction)->toBeCalled()
expect(myMockFunction)->toBeCalledTimes(1)
})
test("myFunction is should called with 'Hello ', 'world!'", () => {
expect(myMockFunction)->toBeCalledWith(("Hello ", "world!"))
})
test("myFunction return is 'Hello world!'", () => {
expect(myMockFunction)->toReturnedWith("Hello world!")
})
})
})