lix-website/themes/lix/assets/bootstrap/node_modules/is-data-view/test/index.js
2024-04-26 22:49:34 -06:00

61 lines
1.5 KiB
JavaScript

'use strict';
var test = require('tape');
var isDataView = require('../');
var hasToStringTag = require('has-tostringtag/shams')();
var generators = require('make-generator-function')();
var arrowFns = require('make-arrow-function').list();
var forEach = require('for-each');
var v = require('es-value-fixtures');
var inspect = require('object-inspect');
var availableTypedArrays = require('available-typed-arrays')();
test('not DataViews', function (t) {
forEach([].concat(
// @ts-expect-error TS sucks at [].concat
v.primitives,
v.objects,
function () {},
generators,
arrowFns,
[]
), /** @type {(nonDV: unknown) => void} */ function (nonDV) {
t.equal(
isDataView(nonDV),
false,
inspect(nonDV) + ' is not a DataView'
);
});
forEach(availableTypedArrays, function (typedArray) {
var TA = global[typedArray];
var ta = new TA(8);
t.equal(isDataView(ta), false, inspect(ta) + ' is not a DataView');
});
t.end();
});
test('@@toStringTag', { skip: !hasToStringTag }, function (t) {
forEach(availableTypedArrays, function (typedArray) {
// @ts-expect-error
var fakeTypedArray = [];
// @ts-expect-error
fakeTypedArray[Symbol.toStringTag] = typedArray;
// @ts-expect-error
t.notOk(isDataView(fakeTypedArray), 'faked ' + typedArray + ' is not typed array');
});
t.end();
});
test('Data Views', { skip: typeof DataView !== 'function' }, function (t) {
var ab = new ArrayBuffer(1);
var dv = new DataView(ab);
t.equal(isDataView(dv), true, inspect(dv) + ' is a DataView');
t.end();
});