77 lines
2.2 KiB
JavaScript
77 lines
2.2 KiB
JavaScript
var inspect = require('../');
|
|
var test = require('tape');
|
|
var arrow = require('make-arrow-function')();
|
|
var functionsHaveConfigurableNames = require('functions-have-names').functionsHaveConfigurableNames();
|
|
|
|
test('function', function (t) {
|
|
t.plan(1);
|
|
var obj = [1, 2, function f(n) { return n; }, 4];
|
|
t.equal(inspect(obj), '[ 1, 2, [Function: f], 4 ]');
|
|
});
|
|
|
|
test('function name', function (t) {
|
|
t.plan(1);
|
|
var f = (function () {
|
|
return function () {};
|
|
}());
|
|
f.toString = function toStr() { return 'function xxx () {}'; };
|
|
var obj = [1, 2, f, 4];
|
|
t.equal(inspect(obj), '[ 1, 2, [Function (anonymous)] { toString: [Function: toStr] }, 4 ]');
|
|
});
|
|
|
|
test('anon function', function (t) {
|
|
var f = (function () {
|
|
return function () {};
|
|
}());
|
|
var obj = [1, 2, f, 4];
|
|
t.equal(inspect(obj), '[ 1, 2, [Function (anonymous)], 4 ]');
|
|
|
|
t.end();
|
|
});
|
|
|
|
test('arrow function', { skip: !arrow }, function (t) {
|
|
t.equal(inspect(arrow), '[Function (anonymous)]');
|
|
|
|
t.end();
|
|
});
|
|
|
|
test('truly nameless function', { skip: !arrow || !functionsHaveConfigurableNames }, function (t) {
|
|
function f() {}
|
|
Object.defineProperty(f, 'name', { value: false });
|
|
t.equal(f.name, false);
|
|
t.equal(
|
|
inspect(f),
|
|
'[Function: f]',
|
|
'named function with falsy `.name` does not hide its original name'
|
|
);
|
|
|
|
function g() {}
|
|
Object.defineProperty(g, 'name', { value: true });
|
|
t.equal(g.name, true);
|
|
t.equal(
|
|
inspect(g),
|
|
'[Function: true]',
|
|
'named function with truthy `.name` hides its original name'
|
|
);
|
|
|
|
var anon = function () {}; // eslint-disable-line func-style
|
|
Object.defineProperty(anon, 'name', { value: null });
|
|
t.equal(anon.name, null);
|
|
t.equal(
|
|
inspect(anon),
|
|
'[Function (anonymous)]',
|
|
'anon function with falsy `.name` does not hide its anonymity'
|
|
);
|
|
|
|
var anon2 = function () {}; // eslint-disable-line func-style
|
|
Object.defineProperty(anon2, 'name', { value: 1 });
|
|
t.equal(anon2.name, 1);
|
|
t.equal(
|
|
inspect(anon2),
|
|
'[Function: 1]',
|
|
'anon function with truthy `.name` hides its anonymity'
|
|
);
|
|
|
|
t.end();
|
|
});
|