Refactor module in TypeScript (#28)

This commit is contained in:
Lukas Tetzlaff 2017-11-06 16:26:59 +01:00 committed by Sindre Sorhus
parent 83adc096ef
commit 8d8fd2b7e0
7 changed files with 602 additions and 375 deletions

1
.gitignore vendored
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@ -1,2 +1,3 @@
node_modules
yarn.lock
dist

227
index.js
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@ -1,227 +0,0 @@
'use strict';
const util = require('util');
const toString = Object.prototype.toString;
const getObjectType = x => toString.call(x).slice(8, -1);
const isOfType = type => x => typeof x === type; // eslint-disable-line valid-typeof
const isObjectOfType = type => x => getObjectType(x) === type;
const is = value => {
if (value === null) {
return 'null';
}
if (value === true || value === false) {
return 'boolean';
}
const type = typeof value;
if (type === 'undefined') {
return 'undefined';
}
if (type === 'string') {
return 'string';
}
if (type === 'number') {
return 'number';
}
if (type === 'symbol') {
return 'symbol';
}
if (is.function(value)) {
return 'Function';
}
if (Array.isArray(value)) {
return 'Array';
}
if (Buffer.isBuffer(value)) {
return 'Buffer';
}
const tagType = getObjectType(value);
if (tagType) {
return tagType;
}
if (value instanceof String || value instanceof Boolean || value instanceof Number) {
throw new TypeError('Please don\'t use object wrappers for primitive types');
}
return 'Object';
};
is.undefined = isOfType('undefined');
is.null = x => x === null;
is.string = isOfType('string');
is.number = isOfType('number');
is.boolean = x => x === true || x === false;
is.symbol = isOfType('symbol');
is.array = Array.isArray;
is.function = isOfType('function');
is.buffer = Buffer.isBuffer;
const isObject = x => typeof x === 'object';
is.object = x => !is.nullOrUndefined(x) && (is.function(x) || isObject(x));
is.nativePromise = isObjectOfType('Promise');
const hasPromiseAPI = x =>
!is.null(x) &&
isObject(x) &&
is.function(x.then) &&
is.function(x.catch);
is.promise = x => is.nativePromise(x) || hasPromiseAPI(x);
is.generator = x => is.iterable(x) && is.function(x.next) && is.function(x.throw);
// TODO: Change to use `isObjectOfType` once Node.js 6 or higher is targeted
const isFunctionOfType = type => x => is.function(x) && is.function(x.constructor) && x.constructor.name === type;
is.generatorFunction = isFunctionOfType('GeneratorFunction');
is.asyncFunction = isFunctionOfType('AsyncFunction');
is.regExp = isObjectOfType('RegExp');
is.date = isObjectOfType('Date');
is.error = isObjectOfType('Error');
is.map = isObjectOfType('Map');
is.set = isObjectOfType('Set');
is.weakMap = isObjectOfType('WeakMap');
is.weakSet = isObjectOfType('WeakSet');
is.int8Array = isObjectOfType('Int8Array');
is.uint8Array = isObjectOfType('Uint8Array');
is.uint8ClampedArray = isObjectOfType('Uint8ClampedArray');
is.int16Array = isObjectOfType('Int16Array');
is.uint16Array = isObjectOfType('Uint16Array');
is.int32Array = isObjectOfType('Int32Array');
is.uint32Array = isObjectOfType('Uint32Array');
is.float32Array = isObjectOfType('Float32Array');
is.float64Array = isObjectOfType('Float64Array');
is.arrayBuffer = isObjectOfType('ArrayBuffer');
is.sharedArrayBuffer = isObjectOfType('SharedArrayBuffer');
is.truthy = x => !!x; // eslint-disable-line no-implicit-coercion
is.falsy = x => !x;
is.nan = Number.isNaN;
is.nullOrUndefined = x => is.null(x) || is.undefined(x);
const primitiveTypes = new Set([
'undefined',
'string',
'number',
'boolean',
'symbol'
]);
is.primitive = x => is.null(x) || primitiveTypes.has(typeof x);
is.integer = Number.isInteger;
is.safeInteger = Number.isSafeInteger;
is.plainObject = x => {
// From: https://github.com/sindresorhus/is-plain-obj/blob/master/index.js
let prototype;
// eslint-disable-next-line no-return-assign
return getObjectType(x) === 'Object' &&
(prototype = Object.getPrototypeOf(x), prototype === null ||
prototype === Object.getPrototypeOf({}));
};
is.iterable = x => !is.nullOrUndefined(x) && is.function(x[Symbol.iterator]);
is.class = x => is.function(x) && x.toString().startsWith('class ');
const typedArrayTypes = new Set([
'Int8Array',
'Uint8Array',
'Uint8ClampedArray',
'Int16Array',
'Uint16Array',
'Int32Array',
'Uint32Array',
'Float32Array',
'Float64Array'
]);
is.typedArray = x => typedArrayTypes.has(getObjectType(x));
const isValidLength = x => is.safeInteger(x) && x > -1;
is.arrayLike = x => !is.nullOrUndefined(x) && !is.function(x) && isValidLength(x.length);
is.inRange = (x, range) => {
if (is.number(range)) {
return x >= Math.min(0, range) && x <= Math.max(range, 0);
}
if (is.array(range) && range.length === 2) {
// TODO: Use spread operator here when targeting Node.js 6 or higher
return x >= Math.min.apply(null, range) && x <= Math.max.apply(null, range);
}
throw new TypeError(`Invalid range: ${util.inspect(range)}`);
};
const NODE_TYPE_ELEMENT = 1;
const DOM_PROPERTIES_TO_CHECK = [
'innerHTML',
'ownerDocument',
'style',
'attributes',
'nodeValue'
];
is.domElement = x => is.object(x) && x.nodeType === NODE_TYPE_ELEMENT && is.string(x.nodeName) &&
!is.plainObject(x) && DOM_PROPERTIES_TO_CHECK.every(property => property in x);
is.infinite = x => x === Infinity || x === -Infinity;
const isAbsoluteMod2 = value => x => is.integer(x) && Math.abs(x % 2) === value;
is.even = isAbsoluteMod2(0);
is.odd = isAbsoluteMod2(1);
const isWhiteSpaceString = x => is.string(x) && /\S/.test(x) === false;
const isEmptyStringOrArray = x => (is.string(x) || is.array(x)) && x.length === 0;
const isEmptyObject = x => !is.map(x) && !is.set(x) && is.object(x) && Object.keys(x).length === 0;
const isEmptyMapOrSet = x => (is.map(x) || is.set(x)) && x.size === 0;
is.empty = x => is.falsy(x) || isEmptyStringOrArray(x) || isEmptyObject(x) || isEmptyMapOrSet(x);
is.emptyOrWhitespace = x => is.empty(x) || isWhiteSpaceString(x);
const predicateOnArray = (method, predicate, values) => {
// `values` is the calling function's "arguments object".
// We have to do it this way to keep node v4 support.
// So here we convert it to an array and slice off the first item.
values = Array.prototype.slice.call(values, 1);
if (is.function(predicate) === false) {
throw new TypeError(`Invalid predicate: ${util.inspect(predicate)}`);
}
if (values.length === 0) {
throw new TypeError(`Invalid number of values`);
}
return method.call(values, predicate);
};
// We have to use anonymous functions for the any() and all() methods
// to get the arguments since we can't use rest parameters in node v4.
is.any = function (predicate) {
return predicateOnArray(Array.prototype.some, predicate, arguments);
};
is.all = function (predicate) {
return predicateOnArray(Array.prototype.every, predicate, arguments);
};
module.exports = is;

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@ -16,10 +16,15 @@
"node": ">=4"
},
"scripts": {
"test": "xo && ava"
"lint": "tslint --project .",
"build": "tsc",
"test": "npm run lint && npm run build && ava dist/tests",
"prepublish": "npm run build && del dist/tests"
},
"main": "dist/index.js",
"types": "dist/index.d.ts",
"files": [
"index.js"
"dist"
],
"keywords": [
"type",
@ -43,8 +48,13 @@
"compare"
],
"devDependencies": {
"@types/jsdom": "^2.0.31",
"@types/node": "^8.0.47",
"ava": "*",
"del-cli": "^1.1.0",
"jsdom": "^9.12.0",
"xo": "*"
"tslint": "^5.8.0",
"tslint-xo": "^0.2.1",
"typescript": "^2.6.1"
}
}

243
source/index.ts Normal file
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@ -0,0 +1,243 @@
import * as util from 'util';
const toString = Object.prototype.toString;
const getObjectType = (value: any) => toString.call(value).slice(8, -1) as string;
const isOfType = (type: string) => (value: any) => typeof value === type; // tslint:disable-line
const isObjectOfType = (type: string) => (value: any) => getObjectType(value) === type;
function is(value: any) { // tslint:disable-line:only-arrow-functions
if (value === null) {
return 'null';
}
if (value === true || value === false) {
return 'boolean';
}
const type = typeof value;
if (type === 'undefined') {
return 'undefined';
}
if (type === 'string') {
return 'string';
}
if (type === 'number') {
return 'number';
}
if (type === 'symbol') {
return 'symbol';
}
if (is.function_(value)) {
return 'Function';
}
if (Array.isArray(value)) {
return 'Array';
}
if (Buffer.isBuffer(value)) {
return 'Buffer';
}
const tagType = getObjectType(value);
if (tagType) {
return tagType;
}
if (value instanceof String || value instanceof Boolean || value instanceof Number) {
throw new TypeError('Please don\'t use object wrappers for primitive types');
}
return 'Object';
}
namespace is { // tslint:disable-line:no-namespace
const isObject = (value: any) => typeof value === 'object';
// tslint:disable:variable-name
export const undefined = isOfType('undefined');
export const string = isOfType('string');
export const number = isOfType('number');
export const function_ = isOfType('function');
export const null_ = (value: any) => value === null;
export const class_ = (value: any) => function_(value) && value.toString().startsWith('class ');
export const boolean = (value: any) => value === true || value === false;
// tslint:enable:variable-name
export const symbol = isOfType('symbol');
export const array = Array.isArray;
export const buffer = Buffer.isBuffer;
export const nullOrUndefined = (value: any) => null_(value) || undefined(value);
export const object = (value: any) => !nullOrUndefined(value) && (function_(value) || isObject(value));
export const iterable = (value: any) => !nullOrUndefined(value) && function_(value[Symbol.iterator]);
export const generator = (value: any) => iterable(value) && function_(value.next) && function_(value.throw);
export const nativePromise = isObjectOfType('Promise');
const hasPromiseAPI = (value: any) =>
!null_(value) &&
isObject(value) &&
function_(value.then) &&
function_(value.catch);
export const promise = (value: any) => nativePromise(value) || hasPromiseAPI(value);
// TODO: Change to use `isObjectOfType` once Node.js 6 or higher is targeted
const isFunctionOfType = (type: string) => (value: any) => function_(value) && function_(value.constructor) && value.constructor.name === type;
export const generatorFunction = isFunctionOfType('GeneratorFunction');
export const asyncFunction = isFunctionOfType('AsyncFunction');
export const regExp = isObjectOfType('RegExp');
export const date = isObjectOfType('Date');
export const error = isObjectOfType('Error');
export const map = isObjectOfType('Map');
export const set = isObjectOfType('Set');
export const weakMap = isObjectOfType('WeakMap');
export const weakSet = isObjectOfType('WeakSet');
export const int8Array = isObjectOfType('Int8Array');
export const uint8Array = isObjectOfType('Uint8Array');
export const uint8ClampedArray = isObjectOfType('Uint8ClampedArray');
export const int16Array = isObjectOfType('Int16Array');
export const uint16Array = isObjectOfType('Uint16Array');
export const int32Array = isObjectOfType('Int32Array');
export const uint32Array = isObjectOfType('Uint32Array');
export const float32Array = isObjectOfType('Float32Array');
export const float64Array = isObjectOfType('Float64Array');
export const arrayBuffer = isObjectOfType('ArrayBuffer');
export const sharedArrayBuffer = isObjectOfType('SharedArrayBuffer');
export const truthy = (value: any) => Boolean(value);
export const falsy = (value: any) => !value;
export const nan = (value: any) => Number.isNaN(value);
const primitiveTypes = new Set([
'undefined',
'string',
'number',
'boolean',
'symbol'
]);
export const primitive = (value: any) => null_(value) || primitiveTypes.has(typeof value);
export const integer = (value: any) => Number.isInteger(value);
export const safeInteger = (value: any) => Number.isSafeInteger(value);
export const plainObject = (value: any) => {
// From: https://github.com/sindresorhus/is-plain-obj/blob/master/index.js
let prototype;
return getObjectType(value) === 'Object' &&
(prototype = Object.getPrototypeOf(value), prototype === null || // tslint:disable-line:ban-comma-operator
prototype === Object.getPrototypeOf({}));
};
const typedArrayTypes = new Set([
'Int8Array',
'Uint8Array',
'Uint8ClampedArray',
'Int16Array',
'Uint16Array',
'Int32Array',
'Uint32Array',
'Float32Array',
'Float64Array'
]);
export const typedArray = (value: any) => typedArrayTypes.has(getObjectType(value));
const isValidLength = (value: any) => safeInteger(value) && value > -1;
export const arrayLike = (value: any) => !nullOrUndefined(value) && !function_(value) && isValidLength(value.length);
export const inRange = (value: number, range: number | number[]) => {
if (number(range)) {
return value >= Math.min(0, range as number) && value <= Math.max(range as number, 0);
}
if (array(range) && range.length === 2) {
// TODO: Use spread operator here when targeting Node.js 6 or higher
return value >= Math.min.apply(null, range) && value <= Math.max.apply(null, range);
}
throw new TypeError(`Invalid range: ${util.inspect(range)}`);
};
const NODE_TYPE_ELEMENT = 1;
const DOM_PROPERTIES_TO_CHECK = [
'innerHTML',
'ownerDocument',
'style',
'attributes',
'nodeValue'
];
export const domElement = (value: any) => object(value) && value.nodeType === NODE_TYPE_ELEMENT && string(value.nodeName) &&
!plainObject(value) && DOM_PROPERTIES_TO_CHECK.every(property => property in value);
export const infinite = (value: any) => value === Infinity || value === -Infinity;
const isAbsoluteMod2 = (value: number) => (rem: number) => integer(rem) && Math.abs(rem % 2) === value;
export const even = isAbsoluteMod2(0);
export const odd = isAbsoluteMod2(1);
const isWhiteSpaceString = (value: any) => string(value) && /\S/.test(value) === false;
const isEmptyStringOrArray = (value: any) => (string(value) || array(value)) && value.length === 0;
const isEmptyObject = (value: any) => !map(value) && !set(value) && object(value) && Object.keys(value).length === 0;
const isEmptyMapOrSet = (value: any) => (map(value) || set(value)) && value.size === 0;
export const empty = (value: any) => falsy(value) || isEmptyStringOrArray(value) || isEmptyObject(value) || isEmptyMapOrSet(value);
export const emptyOrWhitespace = (value: any) => empty(value) || isWhiteSpaceString(value);
type ArrayMethod = (fn: (value: any, index: number, arr: any[]) => boolean, thisArg?: any) => boolean;
const predicateOnArray = (method: ArrayMethod, predicate: any, args: IArguments) => {
// `args` is the calling function's "arguments object".
// We have to do it this way to keep node v4 support.
// So here we convert it to an array and slice off the first item.
const values = Array.prototype.slice.call(args, 1);
if (function_(predicate) === false) {
throw new TypeError(`Invalid predicate: ${util.inspect(predicate)}`);
}
if (values.length === 0) {
throw new TypeError('Invalid number of values');
}
return method.call(values, predicate);
};
// We can't use rest parameters in node v4 due to the lack of the spread operator.
// Therefore We have to use anonymous functions for the any() and all() methods
// tslint:disable:only-arrow-functions no-function-expression
export function any(...predicate: any[]): any; // tslint:disable-line:variable-name
export function any(predicate: any) {
return predicateOnArray(Array.prototype.some, predicate, arguments);
}
export function all(...predicate: any[]): any;
export function all(predicate: any) {
return predicateOnArray(Array.prototype.every, predicate, arguments);
}
// tslint:enable:only-arrow-functions no-function-expression
}
// Some few keywords are reserved, but we'll populate them for the node-folks
// See https://github.com/Microsoft/TypeScript/issues/2536
Object.defineProperties(is, {
class: {value: is.class_},
function: {value: is.function_},
null: {value: is.null_}
});
export default is; // tslint:disable-line:no-default-export

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@ -1,133 +1,311 @@
import util from 'util';
import test from 'ava';
import * as util from 'util';
import test, {TestContext, Context} from 'ava';
import {jsdom} from 'jsdom';
import m from '.';
import m from '..';
const isNode8orHigher = Number(process.versions.node.split('.')[0]) >= 8;
const PromiseSubclassFixture = class extends Promise {};
const ErrorSubclassFixture = class extends Error {};
// Currently out of order, see https://github.com/Microsoft/TypeScript/issues/15202 class PromiseSubclassFixture<T> extends Promise<T> {}
class ErrorSubclassFixture extends Error {}
const document = jsdom();
const createDomElement = el => document.createElement(el);
const createDomElement = (el: string) => document.createElement(el);
const types = new Map([
['undefined', undefined],
['null', null],
['string', [
'🦄',
'hello world',
''
]],
['number', [
6,
1.4,
0,
-0,
Infinity,
-Infinity
]],
['boolean', [
true,
false
]],
['symbol', Symbol('🦄')],
['array', [
[1, 2],
new Array(2)
]],
['function', [
function foo() {}, // eslint-disable-line func-names
function () {},
() => {},
async function () {},
function * () {}
]],
['buffer', Buffer.from('🦄')],
['object', [
{x: 1},
Object.create({x: 1})
]],
['regExp', [
/\w/,
new RegExp('\\w')
]],
['date', new Date()],
['error', [
new Error('🦄'),
new ErrorSubclassFixture()
]],
['nativePromise', [
Promise.resolve(),
PromiseSubclassFixture.resolve()
]],
['promise', {then() {}, catch() {}}],
['generator', (function * () {
yield 4;
})()],
['generatorFunction', function * () {
yield 4;
interface Test {
is(value: any): boolean;
fixtures: any[];
}
const types = new Map<string, Test>([
['undefined', {
is: m.undefined,
fixtures: [
undefined
]
}],
['asyncFunction', [
async function () {},
async () => {}
]],
['map', new Map()],
['set', new Set()],
['weakMap', new WeakMap()],
['int8Array', new Int8Array()],
['uint8Array', new Uint8Array()],
['uint8ClampedArray', new Uint8ClampedArray()],
['uint16Array', new Uint16Array()],
['int32Array', new Int32Array()],
['uint32Array', new Uint32Array()],
['float32Array', new Float32Array()],
['float64Array', new Float64Array()],
['arrayBuffer', new ArrayBuffer(10)],
['nan', [
NaN,
Number.NaN
]],
['nullOrUndefined', [
null,
undefined
]],
['plainObject', [
{x: 1},
Object.create(null),
new Object() // eslint-disable-line no-new-object
]],
['integer', 6],
['safeInteger', [
Math.pow(2, 53) - 1,
-Math.pow(2, 53) + 1
]],
['domElement', [
'div',
'input',
'span',
'img',
'canvas',
'script'
].map(createDomElement)],
['non-domElements', [
document.createTextNode('data'),
document.createProcessingInstruction('xml-stylesheet', 'href="mycss.css" type="text/css"'),
document.createComment('This is a comment'),
document,
document.implementation.createDocumentType('svg:svg', '-//W3C//DTD SVG 1.1//EN', 'http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd'),
document.createDocumentFragment()
]],
['infinite', [
Infinity,
-Infinity
]]
['null', {
is: m.null_,
fixtures: [
null
]
}],
['string', {
is: m.string,
fixtures: [
'🦄',
'hello world',
''
]
}],
['number', {
is: m.number,
fixtures: [
6,
1.4,
0,
-0,
Infinity,
-Infinity
]
}],
['boolean', {
is: m.boolean,
fixtures: [
true, false
]
}],
['symbol', {
is: m.symbol,
fixtures: [
Symbol('🦄')
]
}],
['array', {
is: m.array,
fixtures: [
[1, 2],
new Array(2) // tslint:disable-line:prefer-array-literal
]
}],
['function', {
is: m.function_,
fixtures: [
// tslint:disable:no-empty no-unused-variable only-arrow-functions no-function-expression
function foo() {}, // tslint:disable-line:no-unused
function() {},
() => {},
async function() {},
function *(): any {}
// tslint:enable:no-empty no-unused-variable only-arrow-functions no-function-expression
]
}],
['buffer', {
is: m.buffer,
fixtures: [
Buffer.from('🦄')
]
}],
['object', {
is: m.object,
fixtures: [
{x: 1},
Object.create({x: 1})
]
}],
['regExp', {
is: m.regExp,
fixtures: [
/\w/,
new RegExp('\\w')
]
}],
['date', {
is: m.date,
fixtures: [
new Date()
]
}],
['error', {
is: m.error,
fixtures: [
new Error('🦄'),
new ErrorSubclassFixture()
]
}],
['nativePromise', {
is: m.nativePromise,
fixtures: [
Promise.resolve(),
// PromiseSubclassFixture.resolve()
]
}],
['promise', {
is: m.promise,
fixtures: [
{then() {}, catch() {}} // tslint:disable-line:no-empty
]
}],
['generator', {
is: m.generator,
fixtures: [
(function *() { yield 4; })() // tslint:disable-line
]
}],
['generatorFunction', {
is: m.generatorFunction,
fixtures: [
function *() { yield 4; } // tslint:disable-line
]
}],
['asyncFunction', {
is: m.asyncFunction,
fixtures: [
async function() {}, // tslint:disable-line:no-empty only-arrow-functions no-function-expression
async () => {} // tslint:disable-line:no-empty
]
}],
['map', {
is: m.map,
fixtures: [
new Map()
]
}],
['set', {
is: m.set,
fixtures: [
new Set()
]
}],
['weakSet', {
is: m.weakSet,
fixtures: [
new WeakSet()
]
}],
['weakMap', {
is: m.weakMap,
fixtures: [
new WeakMap()
]
}],
['int8Array', {
is: m.int8Array,
fixtures: [
new Int8Array(0)
]
}],
['uint8Array', {
is: m.uint8Array,
fixtures: [
new Uint8Array(0)
]
}],
['uint8ClampedArray', {
is: m.uint8ClampedArray,
fixtures: [
new Uint8ClampedArray(0)
]
}],
['int16Array', {
is: m.int16Array,
fixtures: [
new Int16Array(0)
]
}],
['uint16Array', {
is: m.uint16Array,
fixtures: [
new Uint16Array(0)
]
}],
['int32Array', {
is: m.int32Array,
fixtures: [
new Int32Array(0)
]
}],
['uint32Array', {
is: m.uint32Array,
fixtures: [
new Uint32Array(0)
]
}],
['float32Array', {
is: m.float32Array,
fixtures: [
new Float32Array(0)
]
}],
['float64Array', {
is: m.float64Array,
fixtures: [
new Float64Array(0)
]
}],
['arrayBuffer', {
is: m.arrayBuffer,
fixtures: [
new ArrayBuffer(10)
]
}],
['nan', {
is: m.nan,
fixtures: [
NaN,
Number.NaN
]
}],
['nullOrUndefined', {
is: m.nullOrUndefined,
fixtures: [
null,
undefined
]
}],
['plainObject', {
is: m.plainObject,
fixtures: [
{x: 1},
Object.create(null),
new Object()
]
}],
['integer', {
is: m.integer,
fixtures: [
6
]
}],
['safeInteger', {
is: m.safeInteger,
fixtures: [
Math.pow(2, 53) - 1,
-Math.pow(2, 53) + 1
]
}],
['domElement', {
is: m.domElement,
fixtures: [
'div',
'input',
'span',
'img',
'canvas',
'script'
].map(createDomElement) }
], ['non-domElements', {
is: value => !m.domElement(value),
fixtures: [
document.createTextNode('data'),
document.createProcessingInstruction('xml-stylesheet', 'href="mycss.css" type="text/css"'),
document.createComment('This is a comment'),
document,
document.implementation.createDocumentType('svg:svg', '-//W3C//DTD SVG 1.1//EN', 'http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd'), // tslint:disable-line
document.createDocumentFragment()
]
}],
['infinite', {
is: m.infinite,
fixtures: [
Infinity,
-Infinity
]
}]
]);
// This ensures a certain method matches only the types
// it's supposed to and none of the other methods' types
const testType = (t, type, exclude) => {
for (const [key, value] of types) {
// This ensures a certain method matches only the types it's supposed to and none of the other methods' types
const testType = (t: TestContext & Context<any>, type: string, exclude?: string[]) => {
const testData = types.get(type);
if (testData === undefined) {
t.fail(`is.${type} not defined`);
return;
}
const {is} = testData;
for (const [key, {fixtures}] of types) {
// TODO: Automatically exclude value types in other tests that we have in the current one.
// Could reduce the use of `exclude`.
if (exclude && exclude.indexOf(key) !== -1) {
@ -135,8 +313,6 @@ const testType = (t, type, exclude) => {
}
const assert = key === type ? t.true.bind(t) : t.false.bind(t);
const is = m[type];
const fixtures = Array.isArray(value) ? value : [value];
for (const fixture of fixtures) {
assert(is(fixture), `Value: ${util.inspect(fixture)}`);
@ -188,7 +364,15 @@ test('is.buffer', t => {
});
test('is.object', t => {
for (const el of types.get('object')) {
const testData = types.get('object');
if (testData === undefined) {
t.fail('is.object not defined');
return;
}
for (const el of testData.fixtures) {
t.true(m.object(el));
}
});
@ -213,6 +397,10 @@ if (isNode8orHigher) {
test('is.promise', t => {
testType(t, 'promise', ['nativePromise']);
});
/*test('is.asyncFunction', t => {
testType(t, 'asyncFunction', ['function']);
});*/
}
test('is.generator', t => {
@ -223,12 +411,6 @@ test('is.generatorFunction', t => {
testType(t, 'generatorFunction', ['function']);
});
if (isNode8orHigher) {
test('is.asyncFunction', t => {
testType(t, 'asyncFunction', ['function']);
});
}
test('is.map', t => {
testType(t, 'map');
});
@ -360,27 +542,29 @@ test('is.iterable', t => {
});
test('is.class', t => {
class Foo {}
class Foo {} // tslint:disable-line
const classDeclarations = [
Foo,
class Bar extends Foo {}
class Bar extends Foo {} // tslint:disable-line
];
for (const x of classDeclarations) {
t.true(m.class(x));
t.true(m.class_(x));
}
});
test('is.typedArray', t => {
// Typescript currently does not support empty constructors for these
// See https://github.com/Microsoft/TypeScript/issues/19680
const typedArrays = [
new Int8Array(),
new Uint8Array(),
new Uint8ClampedArray(),
new Uint16Array(),
new Int32Array(),
new Uint32Array(),
new Float32Array(),
new Float64Array()
new Int8Array(0),
new Uint8Array(0),
new Uint8ClampedArray(0),
new Uint16Array(0),
new Int32Array(0),
new Uint32Array(0),
new Float32Array(0),
new Float64Array(0)
];
for (const el of typedArrays) {
@ -400,7 +584,7 @@ test('is.arrayLike', t => {
t.true(m.arrayLike('unicorn'));
t.false(m.arrayLike({}));
t.false(m.arrayLike(() => {}));
t.false(m.arrayLike(() => {})); // tslint:disable-line:no-empty
t.false(m.arrayLike(new Map()));
});
@ -422,10 +606,6 @@ test('is.inRange', t => {
t.false(m.inRange(x, 2));
t.false(m.inRange(-3, -2));
t.throws(() => {
m.inRange(0);
});
t.throws(() => {
m.inRange(0, []);
});

17
tsconfig.json Normal file
View file

@ -0,0 +1,17 @@
{
"compileOnSave": true,
"compilerOptions": {
/* es2015 requires moduleResolution and module to be set,
see https://github.com/Microsoft/TypeScript/issues/8189 */
"target": "es2015",
"moduleResolution": "node",
"module": "none",
"strict": true,
"declaration": true,
"sourceMap": true,
"outDir": "dist",
"lib": [
"es2015", "dom", "scripthost"
]
}
}

3
tslint.json Normal file
View file

@ -0,0 +1,3 @@
{
"extends": "tslint-xo"
}