succulent/build/types/number.test.js

Powerful and easy runtime type checking

/// <reference types="jest" />
import { is, $bigint, $finite, $int, $number } from "../index";
test("$finite", () => {
    expect(is(0, $finite)).toBe(true);
    expect(is(Number.POSITIVE_INFINITY, $finite)).toBe(false);
    expect(is(Number.NEGATIVE_INFINITY, $finite)).toBe(false);
});
test("$int", () => {
    expect(is(0, $int)).toBe(true);
    expect(is(1, $int)).toBe(true);
    expect(is(0.5, $int)).toBe(false);
});
test("$number", () => {
    expect(is(0, $number)).toBe(true);
    expect(is(0, 0)).toBe(true);
    expect(is(1, 0)).toBe(false);
    expect(is(NaN, $number)).toBe(false);
    expect(is(false, $number)).toBe(false);
    expect(is(0n, 0)).toBe(false);
});
test("$bigint", () => {
    expect(is(0n, $bigint)).toBe(true);
    expect(is(0, $bigint)).toBe(false);
    expect(is(0n, 0n)).toBe(true);
    expect(is(0, 0n)).toBe(false);
});
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