source: imaps-frontend/node_modules/array-buffer-byte-length/test/index.js

'use strict';

var test = require('tape');
var forEach = require('for-each');
var v = require('es-value-fixtures');
var inspect = require('object-inspect');

var byteLength = require('../');

test('byteLength', function (t) {
        forEach(v.objects.concat(v.primitives), function (nonAB) {
                t.equal(byteLength(nonAB), NaN, inspect(nonAB) + ' is not an ArrayBuffer, and yields NaN');
        });

        t.test('ArrayBuffers', { skip: typeof ArrayBuffer !== 'function' }, function (st) {
                var ab32 = new ArrayBuffer(32);
                st.equal(byteLength(ab32), 32, 'works on an ArrayBuffer of length 32: ' + inspect(ab32));

                var ab0 = new ArrayBuffer(0);
                st.equal(byteLength(ab0), 0, 'works on an ArrayBuffer of length 0: ' + inspect(ab0));

                var dv = new DataView(ab32);
                st.equal(byteLength(dv), NaN, 'a DataView returns NaN');

                st.end();
        });

        t.end();
});