You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
64 lines
2.5 KiB
64 lines
2.5 KiB
'use strict';
|
|
|
|
var callBind = require('../');
|
|
var hasStrictMode = require('has-strict-mode')();
|
|
var forEach = require('for-each');
|
|
var inspect = require('object-inspect');
|
|
var v = require('es-value-fixtures');
|
|
|
|
var test = require('tape');
|
|
|
|
test('callBindBasic', function (t) {
|
|
forEach(v.nonFunctions, function (nonFunction) {
|
|
t['throws'](
|
|
// @ts-expect-error
|
|
function () { callBind([nonFunction]); },
|
|
TypeError,
|
|
inspect(nonFunction) + ' is not a function'
|
|
);
|
|
});
|
|
|
|
var sentinel = { sentinel: true };
|
|
/** @type {<T>(this: T, a: number, b: number) => [T | undefined, number, number]} */
|
|
var func = function (a, b) {
|
|
// eslint-disable-next-line no-invalid-this
|
|
return [!hasStrictMode && this === global ? undefined : this, a, b];
|
|
};
|
|
t.equal(func.length, 2, 'original function length is 2');
|
|
|
|
/** type {(thisArg: unknown, a: number, b: number) => [unknown, number, number]} */
|
|
var bound = callBind([func]);
|
|
/** type {((a: number, b: number) => [sentinel, typeof a, typeof b])} */
|
|
var boundR = callBind([func, sentinel]);
|
|
/** type {((b: number) => [sentinel, number, typeof b])} */
|
|
var boundArg = callBind([func, sentinel, 1]);
|
|
|
|
// @ts-expect-error
|
|
t.deepEqual(bound(), [undefined, undefined, undefined], 'bound func with no args');
|
|
|
|
// @ts-expect-error
|
|
t.deepEqual(func(), [undefined, undefined, undefined], 'unbound func with too few args');
|
|
// @ts-expect-error
|
|
t.deepEqual(bound(1, 2), [hasStrictMode ? 1 : Object(1), 2, undefined], 'bound func too few args');
|
|
// @ts-expect-error
|
|
t.deepEqual(boundR(), [sentinel, undefined, undefined], 'bound func with receiver, with too few args');
|
|
// @ts-expect-error
|
|
t.deepEqual(boundArg(), [sentinel, 1, undefined], 'bound func with receiver and arg, with too few args');
|
|
|
|
t.deepEqual(func(1, 2), [undefined, 1, 2], 'unbound func with right args');
|
|
t.deepEqual(bound(1, 2, 3), [hasStrictMode ? 1 : Object(1), 2, 3], 'bound func with right args');
|
|
t.deepEqual(boundR(1, 2), [sentinel, 1, 2], 'bound func with receiver, with right args');
|
|
t.deepEqual(boundArg(2), [sentinel, 1, 2], 'bound func with receiver and arg, with right arg');
|
|
|
|
// @ts-expect-error
|
|
t.deepEqual(func(1, 2, 3), [undefined, 1, 2], 'unbound func with too many args');
|
|
// @ts-expect-error
|
|
t.deepEqual(bound(1, 2, 3, 4), [hasStrictMode ? 1 : Object(1), 2, 3], 'bound func with too many args');
|
|
// @ts-expect-error
|
|
t.deepEqual(boundR(1, 2, 3), [sentinel, 1, 2], 'bound func with receiver, with too many args');
|
|
// @ts-expect-error
|
|
t.deepEqual(boundArg(2, 3), [sentinel, 1, 2], 'bound func with receiver and arg, with too many args');
|
|
|
|
t.end();
|
|
});
|