Abao

RAML testing tool

Abao is a command-line tool for testing API documentation written in RAML format against its back-end implementation. With Abao, you can easily plug your API documentation into a Continuous Integration (CI) system (e.g., Travis, Jenkins) and have API documentation up-to-date, all the time. Abao uses Mocha for judging if a particular API response is valid or not.

Features

• Verify that each endpoint defined in RAML exists in service
• Verify that URL params for each endpoint defined in RAML are supported in service
• Verify that HTTP request headers for each endpoint defined in RAML are supported in service
• Verify that HTTP request body for each endpoint defined in RAML is supported in service, via JSONSchema validation
• Verify that HTTP response headers for each endpoint defined in RAML are supported in service
• Verify that HTTP response body for each endpoint defined in RAML is supported in service, via JSONSchema validation

Installation

Install stable version

$ npm install -g abao

Install latest development version in GitHub branch

$ npm install -g github:cybertk/abao

Get Started Testing Your API

$ abao api.raml http://api.example.com

Writing testable RAML

Abao validates the HTTP response body against schema defined in RAML. No response body will be returned if the corresponding RAML schema is missing. However, the response status code can always be verified, regardless.

Hooks

Abao can be configured to use hookfiles to do basic setup/teardown between each validation (specified with the --hookfiles flag). Hookfiles can be written in either JavaScript or CoffeeScript, and must import the hook methods.

NOTE: The hookfile's extension must be .coffee if it's written in CoffeeScript.

Requests are identified by their name, which is derived from the structure of the RAML. You can print a list of the generated names with the --names flag.

Example

Get Names:

$ abao single-get.raml --names
GET /machines -> 200

Write a hookfile test_machines_hooks.js in JavaScript:

var hooks = require('hooks');

hooks.before('GET /machines -> 200', function(test, done) {
    test.request.query = {color: 'red'};
    done();
});

hooks.after('GET /machines -> 200', function(test, done) {
    machine = test.response.body[0];
    console.log(machine.name);
    done();
});

Write a hookfile test_machines_hooks.coffee in CoffeeScript:

{before, after} = require 'hooks'

before 'GET /machines -> 200', (test, done) ->
  test.request.query =
    color: 'red'
  done()

after 'GET /machines -> 200', (test, done) ->
  machine = test.response.body[0]
  console.log machine.name
  done()

Run validation:

$ abao single-get.raml http://api.example.com --hookfiles=*_hooks.*

Abao also supports callbacks before and after all tests:

{beforeAll, afterAll} = require 'hooks'

beforeAll (done) ->
  # do setup
  done()

afterAll (done) ->
  # do teardown
  done()

If beforeAll, afterAll, before and after are called multiple times, the callbacks are executed serially in the order they were called.

Abao provides hook to allow the content of the response to be checked within the test:

{test} = require 'hooks'

test 'GET /machines -> 200', (response, body, done) ->
    assert.deepEqual(JSON.parse(body), ["machine1", "machine2"])
    assert.equal(headers['content-type'], 'application/json; charset=utf-8')
    return done()

test.request

• server - Server address, provided from command line.
• path - API endpoint path, parsed from RAML.
• method - HTTP method, parsed from RAML request method (e.g., get).
• params - URI parameters, parsed from RAML request uriParameters [default: {}].
• query - Object containing querystring values to be appended to the path [default: {}].
• headers - HTTP headers, parsed from RAML headers [default: {}].
• body - Entity body for POST, PUT, and PATCH requests. Must be a JSON-serializable object. Parsed from RAML example [default: {}].

test.response

• status - Expected HTTP response code, parsed from RAML response status.
• schema - Expected schema of HTTP response body, parsed from RAML response schema.
• headers - Object containing HTTP response headers from server [default: {}].
• body - HTTP response body (JSON-format) from server [default: null].

Command Line Options

Usage:
  abao </path/to/raml> <api_endpoint> [OPTIONS]

Example:
  abao ./api.raml http://api.example.com

Options:
  --hookfiles, -f   Specifes a pattern to match files with before/after hooks
                    for running tests                          [default: null]
  --names, -n       Only list names of requests (for use in a hookfile). No
                    requests are made.                         [default: false]
  --reporter, -r    Specify the reporter to use                [default: 'spec']
  --header, -h      Extra header to include in every request. The header must
                    be in KEY:VALUE format (e.g., '-h Accept:application/json').
                    This option can be repeated to specify more than one header.
  --hooks-only, -H  Run test only if defined either before or after hooks
  --grep, -g        Only run tests matching <pattern>
  --invert, -i      Inverts `--grep` matches
  --timeout, -t     Set timeout for test cases (milliseconds)  [default: 2000]
  --reporters       Display available reporters
  --help            Show usage information
  --version         Show version number

Run Tests

$ npm test

Contribution

Abao is looking for maintainers. If you are interested, please submit an issue.