105 lines
3.5 KiB
Plaintext
105 lines
3.5 KiB
Plaintext
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'use strict';
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var functionsHaveNames = require('functions-have-names')();
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var arrows = require('make-arrow-function').list();
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var generators = require('make-generator-function')();
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var asyncs = require('make-async-function').list();
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var IsCallable = require('es-abstract/2023/IsCallable');
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var forEach = require('for-each');
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var foo = Object(function foo() {});
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var anon = Object(function () {});
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var evalled = Object(Function()); // eslint-disable-line no-new-func
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module.exports = function (getName, t) {
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t.test('functions', function (st) {
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if (functionsHaveNames) {
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st.equal(getName(foo), foo.name, 'foo has name "foo"');
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st.equal(getName(anon), anon.name, 'anonymous function has name of empty string');
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st.equal(getName(evalled), evalled.name, 'eval-d function has name "anonymous" (or empty string)');
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}
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st.equal(getName(foo), 'foo', 'foo has name "foo"');
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st.equal(getName(anon), '', 'anonymous function has name of empty string');
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var evalledName = getName(evalled);
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st.equal(evalledName === 'anonymous' || evalledName === '', true, 'eval-d function has name "anonymous" (or empty string');
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st.end();
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});
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t.test('arrow functions', { skip: arrows.length === 0 }, function (st) {
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st.equal(true, functionsHaveNames, 'functions have names in any env with arrow functions');
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forEach(arrows, function (arrowFn) {
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st.equal(getName(arrowFn), arrowFn.name, 'arrow function name matches for ' + arrowFn);
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});
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st.end();
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});
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t.test('generators', { skip: generators.length === 0 }, function (st) {
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st.equal(true, functionsHaveNames, 'functions have names in any env with generator functions');
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forEach(generators, function (genFn) {
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st.equal(getName(genFn), genFn.name, 'generator function name matches for ' + genFn);
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});
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st.end();
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});
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t.test('asyncs', { skip: asyncs.length === 0 }, function (st) {
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st.equal(true, functionsHaveNames, 'functions have names in any env with async functions');
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forEach(asyncs, function (asyncFn) {
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st.equal(getName(asyncFn), asyncFn.name, 'async function name matches for ' + asyncFn);
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});
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st.end();
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});
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t.test('Function.prototype.name', function (st) {
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st.equal(getName(function before() {}), 'before', 'function prior to accessing Function.prototype has the right name');
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var protoName = getName(Function.prototype);
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// on <= node v2.5, this is "Empty"; on Opera 12.1, "Function.prototype" - otherwise, the empty string
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st.equal(protoName === '' || protoName === 'Empty' || protoName === 'Function.prototype', true, 'Function.prototype has the right name');
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st.equal(getName(function after() {}), 'after', 'function after accessing Function.prototype has the right name');
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st.end();
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});
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t.test('DOM', function (st) {
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/* eslint-env browser */
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st.test('document.all', { skip: typeof document !== 'object' }, function (s2t) {
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s2t['throws'](
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function () { getName(document.all); },
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TypeError,
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'a document.all has no name'
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);
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s2t.end();
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});
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forEach([
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'HTMLElement',
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'HTMLAnchorElement'
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], function (name) {
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var constructor = global[name];
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st.test(name, { skip: !constructor }, function (s2t) {
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s2t.match(typeof constructor, /^(?:function|object)$/, name + ' is a function or an object');
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if (IsCallable(constructor)) {
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try {
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s2t.equal(getName(constructor), name, name + ' has the right name');
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} catch (e) {
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s2t.fail(e);
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}
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} else {
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s2t['throws'](
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function () { getName(constructor); },
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TypeError,
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name + ' is not callable'
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);
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}
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s2t.end();
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});
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});
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st.end();
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});
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};
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