predictype/dist/cjs/predicates/objects/objectInstanceRelation.spec.js

PredicType is a library of pre-built and tested predicates for TypeScript, covering various data types and operations.

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
const vitest_1 = require("vitest");
const objectInstanceRelation_js_1 = require("./objectInstanceRelation.js");
(0, vitest_1.describe)('objectInstanceRelation', () => {
    (0, vitest_1.it)('should return true for instance_of', () => {
        class Foo {
        }
        const foo = new Foo();
        (0, vitest_1.expect)((0, objectInstanceRelation_js_1.objectInstanceRelation)(foo, 'instance_of', Foo)).toBe(true);
        (0, vitest_1.expect)((0, objectInstanceRelation_js_1.objectInstanceRelation)(foo, 'instance_of', function Bar() { })).toBe(false);
        // primitives should always return false
        (0, vitest_1.expect)((0, objectInstanceRelation_js_1.objectInstanceRelation)(42, 'instance_of', Foo)).toBe(false);
        (0, vitest_1.expect)((0, objectInstanceRelation_js_1.objectInstanceRelation)('str', 'instance_of', Foo)).toBe(false);
        (0, vitest_1.expect)((0, objectInstanceRelation_js_1.objectInstanceRelation)(null, 'instance_of', Foo)).toBe(false);
        (0, vitest_1.expect)((0, objectInstanceRelation_js_1.objectInstanceRelation)(undefined, 'instance_of', Foo)).toBe(false);
        // target not a function
        (0, vitest_1.expect)((0, objectInstanceRelation_js_1.objectInstanceRelation)(foo, 'instance_of', 42)).toBe(false);
        (0, vitest_1.expect)((0, objectInstanceRelation_js_1.objectInstanceRelation)(foo, 'instance_of', null)).toBe(false);
        (0, vitest_1.expect)((0, objectInstanceRelation_js_1.objectInstanceRelation)(foo, 'instance_of', undefined)).toBe(false);
    });
    (0, vitest_1.it)('should return true for prototype_of', () => {
        class Foo {
        }
        const proto = Foo.prototype;
        const foo = new Foo();
        (0, vitest_1.expect)((0, objectInstanceRelation_js_1.objectInstanceRelation)(proto, 'prototype_of', foo)).toBe(true);
        (0, vitest_1.expect)((0, objectInstanceRelation_js_1.objectInstanceRelation)({}, 'prototype_of', foo)).toBe(false);
        (0, vitest_1.expect)((0, objectInstanceRelation_js_1.objectInstanceRelation)(proto, 'prototype_of', null)).toBe(false);
        // v not object/function
        (0, vitest_1.expect)((0, objectInstanceRelation_js_1.objectInstanceRelation)(42, 'prototype_of', foo)).toBe(false);
        (0, vitest_1.expect)((0, objectInstanceRelation_js_1.objectInstanceRelation)('str', 'prototype_of', foo)).toBe(false);
        (0, vitest_1.expect)((0, objectInstanceRelation_js_1.objectInstanceRelation)(undefined, 'prototype_of', foo)).toBe(false);
        // t not object/function
        (0, vitest_1.expect)((0, objectInstanceRelation_js_1.objectInstanceRelation)(proto, 'prototype_of', 42)).toBe(false);
        (0, vitest_1.expect)((0, objectInstanceRelation_js_1.objectInstanceRelation)(proto, 'prototype_of', 'str')).toBe(false);
        (0, vitest_1.expect)((0, objectInstanceRelation_js_1.objectInstanceRelation)(proto, 'prototype_of', undefined)).toBe(false);
    });
    (0, vitest_1.it)('should throw for unknown operator', () => {
        class Foo {
        }
        const foo = new Foo();
        // @ts-expect-error
        (0, vitest_1.expect)(() => (0, objectInstanceRelation_js_1.objectInstanceRelation)(foo, 'invalid_operator', Foo)).toThrow('Unknown ObjectInstanceRelation operation: invalid_operator');
    });
});