Fitting
This gem will help you implement your API in strict accordance to the documentation in API Blueprint format. To do this, when you run your RSpec tests on controllers, it automatically searches for the corresponding json-schemas in the documentation and then validates responses with them.
Installation
Add this line to your application's Gemfile:
gem 'fitting'
And then execute:
$ bundle
Or install it yourself as:
$ gem install fitting
Usage
In your .fitting.yml
:
apib_path: /path/to/doc.apib
In your spec_helper.rb
:
require 'fitting'
Fitting.statistics
or
require 'fitting'
responses = Fitting::Storage::Responses.new
RSpec.configure do |config|
config.after(:each, type: :controller) do
responses.add(response)
end
config.after(:suite) do
responses.statistics.save
end
end
Example output
After running tests you will get statistics in the file fitting/stats
:
Fully conforming requests:
DELETE /api/v1/book ✔ 200 ✔ 201 ✔ 404
DELETE /api/v1/book/{id} ✔ 200 ✔ 201 ✔ 404
GET /api/v1/book/{id}/seller ✔ 200 ✔ 201 ✔ 404
Partially conforming requests:
GET /api/v1/book ✖ 200 ✔ 404
POST /api/v1/book ✖ 200 ✔ 201 ✔ 404
GET /api/v1/book/{id} ✖ 200 ✔ 404 ✔ 200
PATCH /api/v1/book/{id} ✖ 200 ✔ 201 ✔ 404
Non-conforming requests:
GET /api/v1/seller ✖ 200 ✖ 201 ✖ 404
GET /api/v1/buyer ✖ 200 ✖ 404
API requests with fully implemented responses: 3 (33.33% of 9).
API requests with partially implemented responses: 4 (44.44% of 9).
API requests with no implemented responses: 2 (22.22% of 9).
API responses conforming to the blueprint: 16 (64.00% of 25).
API responses with validation errors or untested: 9 (36.00% of 25).
Also you will get not covered responses in the file fitting/not_covered
.
Matchers
If you want to know why you get crosses instead of checkmarks you can use matchers for RSpec.
config.include Fitting::Matchers, type: :controller
match_schema
Makes a simple validation against JSON Schema.
expect(response).to match_schema
strictly_match_schema
Makes a strict validation against JSON Schema. All properties are condisidered to have "required": true
and all objects "additionalProperties": false
.
expect(response).to strictly_match_schema
Config
You can specify the settings either in a yaml file .fitting.yml
or in config.
If your project uses several prefixes, for each one you need to create a separate yaml file in the folder fitting
(fitting/*.yml
).
apib_path
Path to API Blueprint documentation. There must be an installed drafter to parse it.
drafter_yaml_path
Path to API Blueprint documentation pre-parsed with drafter
and saved to a YAML file.
strict
Default false
. If true
then all properties are condisidered to have "required": true
and all objects "additionalProperties": false
.
prefix
Prefix of API requests. Example: '/api'
. Validation will not be performed if the request path does not start with a prefix.
white_list
Default: all paths. This is an array of paths that are mandatory for implementation. This list does not affect the work of the matcher. This list is only for the report in the console.
white_list:
/users:
- DELETE
- POST
/users/{id}:
- GET
- PATCH
/users/{id}/employees:
- GET
/sessions: []
Empty array []
means all methods.
resource_white_list
Default: all resources. This is an array of resources that are mandatory for implementation. This list does not affect the work of the matcher. This list is only for the report in the console.
resource_white_list:
/users:
- DELETE /users/{id}
- POST /users
- GET /users/{id}
- PATCH /users/{id}
/users/{id}/employees:
- GET /users/{id}/employees
/sessions: []
Empty array []
means all methods.
include_resources
Default: all resources if include_resources
and include_actions
is not used.
This is an array of resources that are mandatory for implementation.
This list does not affect the work of the matcher.
This list is only for the report in the console.
include_resources:
- /sessions
include_actions
Default: all paths if include_resources
and include_actions
is not used.
This is an array of paths that are mandatory for implementation.
This list does not affect the work of the matcher.
This list is only for the report in the console.
include_actions:
- DELETE /users/{id}
- POST /users
- GET /users/{id}
- PATCH /users/{id}
- GET /users/{id}/employees
ignore_list
You can use ignore list for omit checks with matchers.
ignore_list:
- %r{/api/v1/users/[1-9].}
- %r{/api/v1/comments}
It's work only for match_schema (NOT FOR strictly_match_schema)
Contributing
Bug reports and pull requests are welcome on GitHub at https://github.com/funbox/fitting. This project is intended to be a safe, welcoming space for collaboration, and contributors are expected to adhere to the Contributor Covenant code of conduct.
License
The gem is available as open source under the terms of the MIT License.