@3fv/guard/lib/cjs/test/Guards.spec.js

TypeScript guard suite

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
require("jest");
const index_js_1 = require("../index.js");
test(`isNil`, () => {
    expect((0, index_js_1.isNil)(null)).toBeTruthy();
    expect((0, index_js_1.isNil)(undefined)).toBeTruthy();
    expect((0, index_js_1.isNil)(1)).toBeFalsy();
});
test(`isNumber`, () => {
    expect((0, index_js_1.isNumber)(1)).toBeTruthy();
    expect((0, index_js_1.isNumber)("1")).toBeFalsy();
});
test(`isString`, () => {
    expect((0, index_js_1.isString)(1)).toBeFalsy();
    expect((0, index_js_1.isString)("1")).toBeTruthy();
});
test(`isPrimitiveProducer`, () => {
    expect((0, index_js_1.isPrimitiveProducer)(Number)).toBeTruthy();
    expect((0, index_js_1.isPrimitiveProducer)(Boolean)).toBeTruthy();
    expect((0, index_js_1.isPrimitiveProducer)(String)).toBeTruthy();
    expect((0, index_js_1.isPrimitiveProducer)(Object)).toBeFalsy();
    expect((0, index_js_1.isPrimitiveProducer)("1")).toBeFalsy();
});
test(`isArray`, () => {
    expect((0, index_js_1.isArray)(1)).toBeFalsy();
    expect((0, index_js_1.isArray)("1")).toBeFalsy();
    expect((0, index_js_1.isArray)(["1", 2])).toBeTruthy();
});
test(`instanceOf`, () => {
    class Test1 {
    }
    class Test2 extends Test1 {
    }
    let a = new Test1();
    let b = new Test2();
    expect(a).toBeInstanceOf(Test1);
    expect(a).not.toBeInstanceOf(Test2);
    expect(b).toBeInstanceOf(Test1);
    expect(b).toBeInstanceOf(Test2);
});
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