ava-http

AVA-http

Futuristic test runner... for HTTP or API endpoints.

AVA is a fantastic "next gen" test-runner. Hopefully you've heard about it...

Its intention, as far as I understand, is to test code & modules within a node environment. So, out of the box, AVA does not support testing anything in browser environment.

This package aims to bridge that gap (at least a little bit) by extending AVA's Test class with HTTP methods. And, in typcical AVA-fahion, you can use these HTTP methods with promise, generator, and async function support. :)

Usage

Installation

Note: To use ava-http, you must have ava installed already.

npm install --save-dev ava-http

// package.json
{
    "name": "awesome-package",
    "scripts": {
        "test": "ava"
    },
    "devDependencies": {
        "ava": "^0.11.0",
        "ava-http": "^0.1.0"
    }
}

Creating your test file

Since AVA-http is a clean extension of AVA, you can simply import test from ava-http instead of ava. Everything will work as expected.

import test from 'ava-http';

// Normal AVA test
test('foo', t => {
	// ...
    t.pass();
});

// AVA-http test
test('bar', async t => {
	const expected = /*...*/;
	const res = await t.context.http.get('http://google.com');
	t.true(typeof res === 'object');
	t.same(res, expected);
});

Run it

npm test

AVA Configuration

Please see AVA's docs for full information.

It is required to include babel-core/register in your AVA config.

{
	"ava": {
		// ...
		"require": ["babel-core/register"]
	}
}

AVA-http Test Methods

The generic HTTP methods are included: [get, post, put, delete].

Each of these, used within the context of an AVA test, will return a Promise that can be awaited, yielded, or then/catch'd.

Unfortunately, for now, the only way to inject custom methods into AVA/Test is through a context property. This means that AVA-http's methods must be accessed as such:

test('test name here', async t => {
	t.context.http.get(url, //...
	t.context.http.post(url, //...
	t.context.http.put(url, //...
	t.context.http.del(url, //...
});

Erroneous responses will always return the full Response object and should be caught with .catch().

Successful responses will return the payload (aka, response.body) by default. If you would also like the full Response object, exchange your method for methodResponse:

• t.context.http.get ==> t.context.http.getResponse
• t.context.http.post ==> t.context.http.postResponse
• t.context.http.put ==> t.context.http.putResponse
• t.context.http.del ==> t.context.http.delResponse

API

Methods

get(url[, options])

url: string

options: object

Returns: Promise

On resolve success, returns payload. On error, returns full Response object.

getResponse(url[, options])

url: string

options: object

Returns: Promise

Always returns full Response object.

post(url[, options])

url: string

options: object

Returns: Promise

On resolve success, returns payload. On error, returns full Response object.

postResponse(url[, options])

url: string

options: object

Returns: Promise

Always returns full Response object.

put(url[, options])

url: string

options: object

Returns: Promise

On resolve success, returns payload. On error, returns full Response object.

putResponse(url[, options])

url: string

options: object

Returns: Promise

Always returns full Response object.

del(url[, options])

url: string

options: object

Returns: Promise

On resolve success, returns payload. On error, returns full Response object.

delResponse(url[, options])

url: string

options: object

Returns: Promise

Always returns full Response object.

Options

form

Type: object

Default: {}

An object of key:value pairs of formdata that will be urlencoded before reaching the server.

The request's headers will automatically include 'content-type': 'application/x-www-form-urlencoded'.

This simulates sending an HTML form via normal means.

body

Type: object

Default: {}

The payload data to be sent to the server. Leave json as true to automatically stringify as JSON.

headers

Type: object

Default: {}

The request headers to send.

params

Type: object

Default: {}

An alias of qs.

qs

Type: object

Default: {}

The query string to append to the URL. See this example.

json

Type: boolean

Default: true

Whether or not the response body should be parsed as JSON.

transform

Type: function

Default: null

Transform the response into a custom value with which the promise is resolved. See here for info.

Examples

Thennables

test('thennable', async t => {
	t.context.http.get('http://localhost').then(res => {
		t.same(res, {expected: 'output'});
	});
});

Async Support

test('async/await', async t => {
	const res = await t.context.http.get('http://localhost');
	t.same(res, {expected: 'output'});
});

Generator Support

test('generator/yield', function * (t) {
	const res = yield t.context.http.get('http://localhost');
	t.same(res, {expected: 'output'});
});

Response Headers

By default, successful responses will only yield their payloads. If you need/want to test a status code, for example, this will suffice:

test('response headers', async t => {
	const res = await t.context.http.getResponse('http://localhost');
	console.log('these are the headers: ', res.headers);
	t.same(res.statusCode, 200);
});

Expecting Errors

In order to successfully expect and catch a Response Error, the test must be asserted witin the Promise's .catch().

For more information, please check out Request-Promise's excellent documentation on the Promise API.

test('404 error is thrown', async t => {
	t.context.http.get('http://localhost').catch(err => {
		t.same(err.statusCode, 404);
	});
});

Posting JSON

test(post JSON object', async t => {
	const body = {some: 'data'};
	const res = await t.context.http.post('http://localhost', {body});
	t.same(res, {expected: 'output'});
});

// or, to also assert a statusCode...
test(post JSON object, assert status', async t => {
	const body = {some: 'data'};
	const res = await t.context.http.postResponse('http://localhost', {body});
	t.same(res.statusCode, 201);
	t.same(res.response.body, {expected: 'output'});
});

Posting as a HTML Form

All data within the form object will be urlencoded, just as any normal <form> would!

test('post like a form', async t => {
	const form = {some: 'data'}; // will be urlencoded
	const res = await t.context.http.post('http://localhost', {form});
	t.same(res, {expected: 'output'});
});

Updating an Item

test('update an item', async t => {
	const body = {some: 'data'};
	const res = await t.context.http.put('http://localhost/items/2', {body});
	t.same(res, {expected: 'output'});
});

Deleting an Item

test('delete an item', async t => {
	const res = await t.context.http.delResponse('http://localhost/items/2');
	t.same(res.statusCode, 200);
});

// expecting an error...
test('delete is unauthorized', async t => {
	t.context.http.del('http://localhost/items/2').catch(err => {
		t.same(err.statusCode, 401);
	});
});

Pass an Authorization Token (eg, JWT)

test('delete is authorized with token', async t => {
	const headers = {
        'Authorization': 'Bearer 1234567890'
	};
	const res = t.context.http.del('http://localhost/items/2', {headers});
	t.same(res, {expected: 'output'});
});

Passing Query String Parameters

test('get item with parameters', async t => {
	const params = {
		token: 'xxxxx xxxxx' // -> uri + '?token=xxxxx%20xxxxx'
	};
	const res = t.context.http.get('http://localhost', {params});
	t.same(res, {expected: 'output'});
});

License

MIT © Luke Edwards et al