отчет

Lab/node_modules/typed-array-length/test/index.js

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+'use strict';
+
+var test = require('tape');
+var typedArrayLength = require('../');
+var isCallable = require('is-callable');
+var generators = require('make-generator-function')();
+var arrowFn = require('make-arrow-function')();
+var forEach = require('for-each');
+var inspect = require('object-inspect');
+var typedArrayNames = require('possible-typed-array-names');
+
+test('not arrays', function (t) {
+	t.test('non-number/string primitives', function (st) {
+		// @ts-expect-error
+		st.equal(false, typedArrayLength(), 'undefined is not typed array');
+		st.equal(false, typedArrayLength(null), 'null is not typed array');
+		st.equal(false, typedArrayLength(false), 'false is not typed array');
+		st.equal(false, typedArrayLength(true), 'true is not typed array');
+		st.end();
+	});
+
+	t.equal(false, typedArrayLength({}), 'object is not typed array');
+	t.equal(false, typedArrayLength(/a/g), 'regex literal is not typed array');
+	t.equal(false, typedArrayLength(new RegExp('a', 'g')), 'regex object is not typed array');
+	t.equal(false, typedArrayLength(new Date()), 'new Date() is not typed array');
+
+	t.test('numbers', function (st) {
+		st.equal(false, typedArrayLength(42), 'number is not typed array');
+		st.equal(false, typedArrayLength(Object(42)), 'number object is not typed array');
+		st.equal(false, typedArrayLength(NaN), 'NaN is not typed array');
+		st.equal(false, typedArrayLength(Infinity), 'Infinity is not typed array');
+		st.end();
+	});
+
+	t.test('strings', function (st) {
+		st.equal(false, typedArrayLength('foo'), 'string primitive is not typed array');
+		st.equal(false, typedArrayLength(Object('foo')), 'string object is not typed array');
+		st.end();
+	});
+
+	t.end();
+});
+
+test('Functions', function (t) {
+	t.equal(false, typedArrayLength(function () {}), 'function is not typed array');
+	t.end();
+});
+
+test('Generators', { skip: generators.length === 0 }, function (t) {
+	forEach(generators, function (genFn) {
+		t.equal(false, typedArrayLength(genFn), 'generator function ' + inspect(genFn) + ' is not typed array');
+	});
+	t.end();
+});
+
+test('Arrow functions', { skip: !arrowFn }, function (t) {
+	t.equal(false, typedArrayLength(arrowFn), 'arrow function is not typed array');
+	t.end();
+});
+
+test('Typed Arrays', function (t) {
+	forEach(typedArrayNames, function (typedArray) {
+		/** @type {Int8ArrayConstructor | Uint8ArrayConstructor | Uint8ClampedArrayConstructor | Int16ArrayConstructor | Uint16ArrayConstructor | Int32ArrayConstructor | Uint32ArrayConstructor | Float32ArrayConstructor | Float64ArrayConstructor | BigInt64ArrayConstructor | BigUint64ArrayConstructor} */
+		var TypedArray = global[typedArray];
+		if (isCallable(TypedArray)) {
+			var length = 10;
+			var arr = new TypedArray(length);
+			t.equal(typedArrayLength(arr), length, 'new ' + typedArray + '(10) is typed array of length ' + length);
+		} else {
+			t.comment('# SKIP ' + typedArray + ' is not supported');
+		}
+	});
+	t.end();
+});