82 lines
2.9 KiB
Plaintext
82 lines
2.9 KiB
Plaintext
'use strict';
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var test = require('tape');
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var typedArrayByteLength = require('../');
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var isCallable = require('is-callable');
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var generators = require('make-generator-function')();
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var arrowFn = require('make-arrow-function')();
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var forEach = require('for-each');
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var inspect = require('object-inspect');
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var availableTypedArrays = require('available-typed-arrays')();
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test('not arrays', function (t) {
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t.test('non-number/string primitives', function (st) {
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st.equal(false, typedArrayByteLength(), 'undefined is not typed array');
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st.equal(false, typedArrayByteLength(null), 'null is not typed array');
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st.equal(false, typedArrayByteLength(false), 'false is not typed array');
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st.equal(false, typedArrayByteLength(true), 'true is not typed array');
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st.end();
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});
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t.equal(false, typedArrayByteLength({}), 'object is not typed array');
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t.equal(false, typedArrayByteLength(/a/g), 'regex literal is not typed array');
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t.equal(false, typedArrayByteLength(new RegExp('a', 'g')), 'regex object is not typed array');
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t.equal(false, typedArrayByteLength(new Date()), 'new Date() is not typed array');
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t.test('numbers', function (st) {
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st.equal(false, typedArrayByteLength(42), 'number is not typed array');
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st.equal(false, typedArrayByteLength(Object(42)), 'number object is not typed array');
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st.equal(false, typedArrayByteLength(NaN), 'NaN is not typed array');
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st.equal(false, typedArrayByteLength(Infinity), 'Infinity is not typed array');
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st.end();
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});
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t.test('strings', function (st) {
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st.equal(false, typedArrayByteLength('foo'), 'string primitive is not typed array');
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st.equal(false, typedArrayByteLength(Object('foo')), 'string object is not typed array');
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st.end();
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});
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t.end();
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});
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test('Functions', function (t) {
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t.equal(false, typedArrayByteLength(function () {}), 'function is not typed array');
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t.end();
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});
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test('Generators', { skip: generators.length === 0 }, function (t) {
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forEach(generators, function (genFn) {
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t.equal(false, typedArrayByteLength(genFn), 'generator function ' + inspect(genFn) + ' is not typed array');
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});
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t.end();
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});
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test('Arrow functions', { skip: !arrowFn }, function (t) {
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t.equal(false, typedArrayByteLength(arrowFn), 'arrow function is not typed array');
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t.end();
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});
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test('Typed Arrays', { skip: availableTypedArrays.length === 0 }, function (t) {
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var length = 64;
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var byteLength = 32;
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forEach(availableTypedArrays, function (typedArray) {
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var buffer = new ArrayBuffer(length);
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var TypedArray = global[typedArray];
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if (isCallable(TypedArray)) {
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var arr = new TypedArray(buffer, byteLength);
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t.equal(typedArrayByteLength(arr), byteLength, 'new ' + typedArray + '(new ArrayBuffer(' + length + '), ' + byteLength + ') is typed array of byte Length ' + byteLength);
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} else {
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t.comment('# SKIP ' + typedArray + ' is not supported');
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}
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});
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var buffer = new ArrayBuffer(8);
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var uint8 = new Uint8Array(buffer, 2);
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t.equal(typedArrayByteLength(uint8), 6, 'byteLength is as expected');
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t.end();
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});
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