67 lines
1.8 KiB
JavaScript
67 lines
1.8 KiB
JavaScript
'use strict';
|
|
|
|
var test = require('tape');
|
|
var inspect = require('object-inspect');
|
|
var v = require('es-value-fixtures');
|
|
var forEach = require('for-each');
|
|
var has = require('has');
|
|
|
|
var shimUnscopables = require('../');
|
|
|
|
var sortSymbols = function (a, b) {
|
|
return inspect(a).localeCompare(inspect(b));
|
|
};
|
|
|
|
test('shimUnscopables', function (t) {
|
|
t.equal(typeof shimUnscopables, 'function', 'is a function');
|
|
|
|
forEach(v.nonStrings, function (notNonEmptyString) {
|
|
t['throws'](
|
|
function () { shimUnscopables(notNonEmptyString); },
|
|
TypeError,
|
|
inspect(notNonEmptyString) + ' is not a non-empty String'
|
|
);
|
|
});
|
|
|
|
t['throws'](
|
|
function () { shimUnscopables('x'); },
|
|
TypeError,
|
|
inspect('x') + ' is not on Array.prototype'
|
|
);
|
|
|
|
t.test('no symbols', { skip: typeof Symbol === 'function' }, function (st) {
|
|
st.doesNotThrow(function () { shimUnscopables('forEach'); });
|
|
|
|
st.end();
|
|
});
|
|
|
|
t.test('symbols, no unscopables', { skip: typeof Symbol !== 'function' || Symbol.unscopables }, function (st) {
|
|
st.deepEqual(Object.getOwnPropertySymbols(Array.prototype), [Symbol.iterator]);
|
|
|
|
shimUnscopables('forEach');
|
|
|
|
st.deepEqual(Object.getOwnPropertySymbols(Array.prototype), [Symbol.iterator]);
|
|
|
|
st.end();
|
|
});
|
|
|
|
t.test('Symbol.unscopables', { skip: typeof Symbol !== 'function' || !Symbol.unscopables }, function (st) {
|
|
st.deepEqual(
|
|
Object.getOwnPropertySymbols(Array.prototype).sort(sortSymbols),
|
|
[Symbol.iterator, Symbol.unscopables]
|
|
);
|
|
st.notOk(has(Array.prototype[Symbol.unscopables], 'forEach'), 'unscopables map lacks forEach');
|
|
|
|
shimUnscopables('forEach');
|
|
|
|
st.deepEqual(
|
|
Object.getOwnPropertySymbols(Array.prototype).sort(sortSymbols),
|
|
[Symbol.iterator, Symbol.unscopables]
|
|
);
|
|
st.equal(Array.prototype[Symbol.unscopables].forEach, true, 'unscopables map has forEach');
|
|
|
|
st.end();
|
|
});
|
|
|
|
t.end();
|
|
});
|