Nice jest bindings for rescript

jest.res

type expectException
type expect<'a, 'ret>

@module("@jest/globals") external describe: (string, unit => unit) => unit = "describe"
@module("@jest/globals") external test: (string, unit => unit) => unit = "test"
@module("@jest/globals") external testAsync: (string, unit => Js.Promise.t<unit>) => unit = "test"

@module("@jest/globals") external expect: 'a => expect<'a, unit> = "expect"
@module("@jest/globals") external expectF: (unit => 'a) => expect<expectException, unit> = "expect"
@module("@jest/globals")
external expectAsync: Js.Promise.t<'a> => expect<Js.Promise.t<'a>, Js.Promise.t<unit>> = "expect"

@get external not: expect<'a, 'ret> => expect<'a, 'ret> = "not"
@send external toEqual: (expect<'a, 'ret>, 'a) => 'ret = "toEqual"
@send external toBe: (expect<'a, 'ret>, 'a) => 'ret = "toBe"
@send external toBeNull: expect<'a, 'ret> => 'ret = "toBeNull"
@send external toBeDefined: expect<'a, 'ret> => 'ret = "toBeDefined"
@send external toBeUndefined: expect<'a, 'ret> => 'ret = "toBeUndefined"
@send external toBeTruthy: expect<'a, 'ret> => 'ret = "toBeTruthy"
@send external toBeFasly: expect<'a, 'ret> => 'ret = "toBeFasly"
@send external toMatch: (expect<string, 'ret>, Js.Re.t) => 'ret = "toMatch"
@send external toContain: (expect<array<'a>, 'ret>, 'a) => 'ret = "toContain"

@send external toThrow: expect<expectException, 'ret> => 'ret = "toThrow"

@send external fail: string => _ = "fail"

@send
external resolves: expect<Js.Promise.t<'a>, unit> => expect<'a, Js.Promise.t<unit>> = "resolves"

@send
external rejects: expect<Js.Promise.t<'a>, unit> => expect<_, Js.Promise.t<unit>> = "rejects"