123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104 |
- 'use strict';
- var functionsHaveNames = require('functions-have-names')();
- var arrows = require('make-arrow-function').list();
- var generators = require('make-generator-function')();
- var asyncs = require('make-async-function').list();
- var IsCallable = require('is-callable');
- var forEach = require('for-each');
- var foo = Object(function foo() {});
- var anon = Object(function () {});
- var evalled = Object(Function()); // eslint-disable-line no-new-func
- module.exports = function (getName, t) {
- t.test('functions', function (st) {
- if (functionsHaveNames) {
- st.equal(getName(foo), foo.name, 'foo has name "foo"');
- st.equal(getName(anon), anon.name, 'anonymous function has name of empty string');
- st.equal(getName(evalled), evalled.name, 'eval-d function has name "anonymous" (or empty string)');
- }
- st.equal(getName(foo), 'foo', 'foo has name "foo"');
- st.equal(getName(anon), '', 'anonymous function has name of empty string');
- var evalledName = getName(evalled);
- st.equal(evalledName === 'anonymous' || evalledName === '', true, 'eval-d function has name "anonymous" (or empty string');
- st.end();
- });
- t.test('arrow functions', { skip: arrows.length === 0 }, function (st) {
- st.equal(true, functionsHaveNames, 'functions have names in any env with arrow functions');
- forEach(arrows, function (arrowFn) {
- st.equal(getName(arrowFn), arrowFn.name, 'arrow function name matches for ' + arrowFn);
- });
- st.end();
- });
- t.test('generators', { skip: generators.length === 0 }, function (st) {
- st.equal(true, functionsHaveNames, 'functions have names in any env with generator functions');
- forEach(generators, function (genFn) {
- st.equal(getName(genFn), genFn.name, 'generator function name matches for ' + genFn);
- });
- st.end();
- });
- t.test('asyncs', { skip: asyncs.length === 0 }, function (st) {
- st.equal(true, functionsHaveNames, 'functions have names in any env with async functions');
- forEach(asyncs, function (asyncFn) {
- st.equal(getName(asyncFn), asyncFn.name, 'async function name matches for ' + asyncFn);
- });
- st.end();
- });
- t.test('Function.prototype.name', function (st) {
- st.equal(getName(function before() {}), 'before', 'function prior to accessing Function.prototype has the right name');
- var protoName = getName(Function.prototype);
- // on <= node v2.5, this is "Empty"; on Opera 12.1, "Function.prototype" - otherwise, the empty string
- st.equal(protoName === '' || protoName === 'Empty' || protoName === 'Function.prototype', true, 'Function.prototype has the right name');
- st.equal(getName(function after() {}), 'after', 'function after accessing Function.prototype has the right name');
- st.end();
- });
- t.test('DOM', function (st) {
- /* eslint-env browser */
- st.test('document.all', { skip: typeof document !== 'object' }, function (s2t) {
- s2t['throws'](
- function () { getName(document.all); },
- TypeError,
- 'a document.all has no name'
- );
- s2t.end();
- });
- forEach([
- 'HTMLElement',
- 'HTMLAnchorElement'
- ], function (name) {
- var constructor = global[name];
- st.test(name, { skip: !constructor }, function (s2t) {
- s2t.match(typeof constructor, /^(?:function|object)$/, name + ' is a function or an object');
- if (IsCallable(constructor)) {
- try {
- s2t.equal(getName(constructor), name, name + ' has the right name');
- } catch (e) {
- s2t.fail(e);
- }
- } else {
- s2t['throws'](
- function () { getName(constructor); },
- TypeError,
- name + ' is not callable'
- );
- }
- s2t.end();
- });
- });
- st.end();
- });
- };
|