chai-asserttype

a chai plugin for type assertions, support typescript

---

Installation

``
npm install chai chai-asserttype-extra
`

$3

`ts
const ChaiPluginAssertType = require('chai-asserttype-extra');
import ChaiPluginAssertType = require('chai-asserttype-extra');
import ChaiPluginAssertType from 'chai-asserttype-extra';
import { ChaiPlugin as ChaiPluginAssertType } from 'chai-asserttype-extra';
`

---

> choose one of ur fav way

when use .install will try make current chai support to new method in typescript, make without use @ts-ignore

`ts
const chai = ChaiPluginAssertType.install();
`

`ts
const chai = ChaiPluginAssertType.install(require('chai'));
`

`ts
const chai = require('chai-asserttype-extra').install()
`

`ts
const chai = require('chai');
chai.use(ChaiPluginAssertType);
`

`ts
const chai = require('chai');
chai.use(ChaiPluginAssertType);
`

Usage

> this usage copy from GaneshSPatil/chai-asserttype

support both of .xxx() and .xxx

$3

`ts
console.log(ChaiPluginAssertType.list());
/*
[ 'array',
'boolean',
'date',
'float',
'function',
'integer',
'null',
'number',
'object',
'regexp',
'string',
'undefined' ]
*/
`

$3


Asserts that type of actual is Number.

`ts
expect(1).to.be.number();
expect(0).to.be.number();
expect(-1).to.be.number();
expect(63465789908753).to.be.number();
expect(27.11).to.be.number();

expect(1).to.be.number;
expect(0).to.be.number;
expect(-1).to.be.number;
expect(63465789908753).to.be.number;
expect(27.11).to.be.number;
`

#### integer

`ts
expect(27).to.be.integer();
expect(27).to.be.integer;
`

#### float

`ts
expect(27.11).to.be.float();
expect(27.11).to.be.float;
`

$3


Asserts that type of actual is String.

`ts
expect('').to.be.string();
expect('foobar').to.be.string();
`

$3


Asserts that type of actual is Boolean.

`ts
expect(true).to.be.boolean();
expect(false).to.be.boolean();
`

$3


Asserts that type of actual is Object.

`ts
expect({}).to.be.object();
`

$3


Asserts that type of actual is Array.

`ts
expect([]).to.be.array();
expect([1, 2, 3]).to.be.array();
`

$3


Asserts that type of actual is date.

`ts
expect(new Date()).to.be.date();
`

$3


Asserts that type of actual is Function.

`ts
expect(() => true).to.be.function();
``