df4e06385a
Initial setup of project dependencies including axios, express, dotenv, and other supporting packages. Added configuration files and documentation for project setup and usage.
69 lines
2.3 KiB
JavaScript
69 lines
2.3 KiB
JavaScript
'use strict';
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var test = require('tape');
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var getProto = require('../');
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test('getProto', function (t) {
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t.equal(typeof getProto, 'function', 'is a function');
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t.test('can get', { skip: !getProto }, function (st) {
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if (getProto) { // TS doesn't understand tape's skip
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var proto = { b: 2 };
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st.equal(getProto(proto), Object.prototype, 'proto: returns the [[Prototype]]');
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st.test('nullish value', function (s2t) {
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// @ts-expect-error
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s2t['throws'](function () { return getProto(undefined); }, TypeError, 'undefined is not an object');
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// @ts-expect-error
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s2t['throws'](function () { return getProto(null); }, TypeError, 'null is not an object');
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s2t.end();
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});
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// @ts-expect-error
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st['throws'](function () { getProto(true); }, 'throws for true');
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// @ts-expect-error
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st['throws'](function () { getProto(false); }, 'throws for false');
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// @ts-expect-error
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st['throws'](function () { getProto(42); }, 'throws for 42');
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// @ts-expect-error
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st['throws'](function () { getProto(NaN); }, 'throws for NaN');
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// @ts-expect-error
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st['throws'](function () { getProto(0); }, 'throws for +0');
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// @ts-expect-error
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st['throws'](function () { getProto(-0); }, 'throws for -0');
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// @ts-expect-error
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st['throws'](function () { getProto(Infinity); }, 'throws for ∞');
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// @ts-expect-error
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st['throws'](function () { getProto(-Infinity); }, 'throws for -∞');
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// @ts-expect-error
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st['throws'](function () { getProto(''); }, 'throws for empty string');
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// @ts-expect-error
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st['throws'](function () { getProto('foo'); }, 'throws for non-empty string');
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st.equal(getProto(/a/g), RegExp.prototype);
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st.equal(getProto(new Date()), Date.prototype);
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st.equal(getProto(function () {}), Function.prototype);
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st.equal(getProto([]), Array.prototype);
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st.equal(getProto({}), Object.prototype);
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var nullObject = { __proto__: null };
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if ('toString' in nullObject) {
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st.comment('no null objects in this engine');
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st.equal(getProto(nullObject), Object.prototype, '"null" object has Object.prototype as [[Prototype]]');
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} else {
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st.equal(getProto(nullObject), null, 'null object has null [[Prototype]]');
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}
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}
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st.end();
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});
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t.test('can not get', { skip: !!getProto }, function (st) {
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st.equal(getProto, null);
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st.end();
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});
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t.end();
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});
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