# Airborne

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RSpec driven API testing framework inspired by [frisby.js](https://github.com/vlucas/frisby)

## Installation
Install Airborne:

    gem install airborne

##Creating Tests

    require 'airborne'
    
    describe 'sample spec' do
        it 'should validate types' do
            get 'http://example.com/api/v1/simple_get' #json api that returns { "name" : "John Doe" } 
            expect_json_types({name: :string})
        end
        
        it 'should validate values' do 
            get 'http://example.com/api/v1/simple_get' #json api that returns { "name" : "John Doe" } 
            expect_json({:name => "John Doe"})
        end
    end

When calling expect_json_types, these are the valid types that can be tested against:

* `:int` or `:integer`
* `:float`
* `:bool` or `:boolean`
* `:string`
* `:object`
* `:array`
* `:array_of_integers` or `:array_of_ints`
* `:array_of_floats`
* `:array_of_strings`
* `:array_of_booleans` or `:array_of_bools`
* `:array_of_objects`
* `:array_of_arrays`

If the properties are optional and may not appear in the response, you can append `_or_null` to the types above.
    
    describe 'sample spec' do
        it 'should validate types' do
            get 'http://example.com/api/v1/simple_get' #json api that returns { "name" : "John Doe" } or { "name" : "John Doe", "age" : 45 }
            expect_json_types({name: :string, age: :int_or_null})
        end
    end

Additionally, if an entire object could be null, but you'd still want to test the types if it does exist, you can wrap the expectations in a call to `optional`:

    it 'should allow optional nested hash' do
        get '/simple_path_get' #may or may not return coordinates
        expect_json_types("address.coordinates", optional({lattitude: :float, longitutde: :float}))
    end

When calling `expect_json`, you can optionally provide a block and run your own `rspec` expectations:

    describe 'sample spec' do
        it 'should validate types' do
            get 'http://example.com/api/v1/simple_get' #json api that returns { "name" : "John Doe" }
            expect_json({name: lambda |name| expect(name.length).to eq(8)})
        end
    end
    

##Making requests
Airborne uses `rest_client` to make the HTTP request, and supports all HTTP verbs. When creating a test, you can call any of the following methods: `get`, `post`, `put`, `patch`, `delete`. This will then give you access the following properties:

* `response` - The HTTP response returned from the request
* `headers` - A symbolized hash of the response headers returned by the request
* `body` - The raw HTTP body returned from the request
* `json_body` - A symbolized hash representation of the JSON returned by the request

Fo example:

    it 'should validate types' do
        get 'http://example.com/api/v1/simple_get' #json api that returns { "name" : "John Doe" } 
        name = json_body[:name] #name will equal "John Doe"
        body_as_string = body
    end


When calling any of the methods above, you can pass request headers to be used. 

    get 'http://example.com/api/v1/my_api', {'x-auth-token' => 'my_token'}

For requests that require a body (`post`, `put`, `patch`) you can pass the body as a hash as well:
    
    post 'http://example.com/api/v1/my_api', {:name => 'John Doe'}, {'x-auth-token' => 'my_token'}
    
##API
* `expect_json_types` - Tests the types of the JSON property values returned
* `expect_json` - Tests the values of the JSON property values returned
* `expect_json_keys` - Tests the existence of the specified keys in the JSON object
* `expect_status` - Tests the HTTP status code returned
* `expect_header` - Tests for a specified header in the response
* `expect_header_contains` - Partial match test on a specified header

##Path Matching
When calling `expect_json_types`, `expect_json` or `expect_json_keys` you can optionaly specify a path as a first parameter. 

For example, if our API returns the following JSON:

    {
        "name": "Alex",
        "address": {
            "street": "Area 51",
            "city": "Roswell",
            "state": "NM",
            "coordinates":{
                "lattitude": 33.3872,
                "longitude": 104.5281 
            }
        }
    }
    
This test would only test the address object:
    
    describe 'path spec' do
        it 'should allow simple path and verify only that path' do
            get 'http://example.com/api/v1/simple_path_get'
            expect_json_types('address', {street: :string, city: :string, state: :string, coordinates: :object })
            #or this
            expect_json_types('address', {street: :string, city: :string, state: :string, coordinates: { lattitude: :float, longitude: :float } })
        end
    end

Alternativley, if we only want to test `coordinates` we can dot into just the `coordinates`:

    it 'should allow nested paths' do
        get 'http://example.com/api/v1/simple_path_get'
        expect_json('address.coordinates', {lattitude: 33.3872, longitutde: 104.5281} )     
    end

When dealing with `arrays`, we can optionally test all (`*`) or a single (`?` - any, `0` - index) element of the array:

Given the following JSON:

    {
        "cars":[
            {"make": "Tesla", "model": "Model S"},
            {"make": "Lamborghini", "model": "Aventador"}
        ]
    }

We can test against just the first car like this:

    it 'should index into array and test against specific element' do 
        get '/array_api'
        expect_json('cars.0', {make: "Tesla", model: "Model S"})
    end

To test the types of all elements in the array:

    it 'should test all elements of the array' do 
        get 'http://example.com/api/v1/array_api
        expect_json('cars.?', {make: "Tesla", model: "Model S"}) # tests that one car in array matches the tesla
        expect_json_types('cars.*', {make: :string, model: :string}) # tests all cars in array for make and model of type string
    end
    
`*` and `?` work for nested arrays as well. Given the following JSON:

    {
        "cars": [{
            "make": "Tesla",
            "model": "Model S",
            "owners": [{
                "name": "Bart Simpson"
            }]
        }, {
            "make": "Lamborghini",
            "model": "Aventador",
            "owners": [{
                "name": "Peter Griffin"
            }]
        }]
    }

===

    it 'should check all nested arrays for specified elements' do
        get 'http://example.com/api/v1/array_with_nested'
        expect_json_types('cars.*.owners.*', {name: :string})
    end
    

##Configuration

When setting up Airborne, you can call `configure` just like you would with `rspec`:

    Airborne.configure.do |config| #config is the RSpec configuration and can be used just like it
        config.include MyModule
    end

Additionally, you can specify a `base_url` and default `headers` to be used on every request (unless overriden in the actual request):

    Airborne.configure.do |config|
        config.base_url = 'http://example.com/api/v1'
        config.headers = {'x-auth-token' => 'my_token'}
    end
    
    describe 'spec' do
        it 'now we no longer need the full url' do
            get '/simple_get'
            expect_json_types({name: :string})
        end
    end

## License 

The MIT License

Copyright (c) 2014 brooklyndev, sethpollack

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.