74 lines
1.8 KiB
JavaScript
Executable File
74 lines
1.8 KiB
JavaScript
Executable File
describe('fn.name', function () {
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'use strict';
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var assume = require('assume')
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, name = require('./');
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it('is exported as a function', function () {
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assume(name).is.a('function');
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});
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it('can extract the name from a function declaration', function () {
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function foobar() {}
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assume(name(foobar)).equals('foobar');
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});
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it('can extract the name from a function expression', function () {
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var a = function bar() {};
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assume(name(a)).equals('bar');
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});
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it('can be overriden using displayName', function () {
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var a = function bar() {};
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a.displayName = 'bro';
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assume(name(a)).equals('bro');
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});
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it('works with constructed instances', function () {
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function Bar(){}
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var foo = new Bar();
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assume(name(foo)).equals('Bar');
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});
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it('works with anonymous', function () {
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assume(name(function () {})).equals('anonymous');
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});
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it('returns the className if we were not given a function', function () {
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assume(name('string')).equals('String');
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});
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//
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// Test if the env supports async functions, if so add a test to ensure
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// that we will work with async functions.
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//
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var asyncfn = true;
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try { new Function('return async function hello() {}')(); }
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catch (e) { asyncfn = false; }
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if (asyncfn) it('detects the name of async functions', function () {
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var fn = new Function('return async function hello() {}')();
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assume(name(fn)).equals('hello');
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});
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//
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// Test that this env supports generators, if so add a test to ensure that
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// we will work with generators.
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//
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var generators = true;
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try { new Function('return function* generator() {}')(); }
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catch (e) { generator = false; }
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if (generators) it('detecs the name of a generator', function () {
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var fn = new Function('return function* hello() {}')();
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assume(name(fn)).equals('hello');
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});
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});
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