Add test coverage

.travis.yml

@@ -6,5 +6,8 @@ python:
 install:
   - "pip install pipenv"
   - "pipenv install --dev --skip-lock"
+  - "pipenv install coveralls"
 script:
-  - "make test lint check-fmt"
+  - "make coverage-test lint check-fmt"
+after_success:
+  - coveralls --verbose

CONTRIBUTING.md

@@ -0,0 +1,35 @@
+# Contribution to Coronavirus Tracker API
+
+First off, thanks for taking the time to contribute!
+Every commit supports the open source ecosystem in case of [COVID-19](https://en.wikipedia.org/wiki/2019%E2%80%9320_coronavirus_pandemic).
+
+## Testing
+
+We have a handful of unit tests to cover most of functions.
+Please write new test cases for new code you create.
+
+## Submitting changes
+
+* If you're unable to find an open issue, [open a new one](https://github.com/ExpDev07/coronavirus-tracker-api/issues/new). Be sure to include a **title and clear description**, as much relevant information as possible
+* Open  a new [GitHub Pull Request to coronavirus-tracker-api](https://github.com/ExpDev07/coronavirus-tracker-api/pulls) with a clear list of what you've done (read more about [pull requests](http://help.github.com/pull-requests/)). Include the relevant issue number if applicable.
+* We will love you forever if you include unit tests. We can always use more test coverage
+
+## Your First Code Contribution
+
+Unsure where to begin contributing to coronavirus-tracker-api ? You can start by looking through these issues labels:
+
+* [Enhancement issues](https://github.com/ExpDev07/coronavirus-tracker-api/labels/enhancement) - issues for new feature or request
+* [Help wanted issues](https://github.com/ExpDev07/coronavirus-tracker-api/labels/help%20wanted) -  extra attention is needed
+* [Documentation issues](https://github.com/ExpDev07/coronavirus-tracker-api/labels/documentation) - improvements or additions to documentation
+
+## Styleguide
+
+Please follow [PEP8](https://www.python.org/dev/peps/pep-0008/) guide.
+See [Running Test](./README.md#running-tests), [Linting](./README.md#linting) and [Formatting](./README.md#formatting) sections for further instructions to validate your change.
+
+
+We encourage you to pitch in and join the [Coronavirus Tracker API Team](https://github.com/ExpDev07/coronavirus-tracker-api#contributors-)!
+
+Thanks! :heart: :heart: :heart:
+
+[Coronavirus Tracker API Team](https://github.com/ExpDev07/coronavirus-tracker-api#contributors-)

Makefile

@@ -27,3 +27,6 @@ fmt:
 check-fmt:
 	isort -rc --check
 	black . --check --diff
+
+coverage-test:
+	coverage run --source=$(APP) `which py.test` -s -v $(TEST)

Pipfile

@@ -8,7 +8,9 @@ bandit = "*"
 black = "==19.10b0"
 isort = "*"
 pytest = "*"
+pytest-cov="*"
 pylint = "*"
+coveralls = "*"
 
 [packages]
 fastapi = "*"

README.md

@@ -6,6 +6,7 @@ Provides up-to-date data about Coronavirus outbreak. Includes numbers about conf
 Support multiple data-sources.
 
 ![Travis build](https://api.travis-ci.com/ExpDev07/coronavirus-tracker-api.svg?branch=master)
+[![Coverage Status](https://coveralls.io/repos/github/ExpDev07/coronavirus-tracker-api/badge.svg)](https://coveralls.io/github/ExpDev07/coronavirus-tracker-api)
 [![License](https://img.shields.io/github/license/ExpDev07/coronavirus-tracker-api)](LICENSE.md)
 [![All Contributors](https://img.shields.io/badge/all_contributors-1-orange.svg?style=flat-square)](#contributors-)
 [![GitHub stars](https://img.shields.io/github/stars/ExpDev07/coronavirus-tracker-api)](https://github.com/ExpDev07/coronavirus-tracker-api/stargazers)
@@ -30,15 +31,15 @@ Support multiple data-sources.
 
 Currently 2 different data-sources are available to retrieve the data:
 
-* **jhu** - https://github.com/CSSEGISandData/COVID-19 - Worldwide Data repository operated by the Johns Hopkins University Center for Systems Science and Engineering (JHU CSSE). 
+* **jhu** - https://github.com/CSSEGISandData/COVID-19 - Worldwide Data repository operated by the Johns Hopkins University Center for Systems Science and Engineering (JHU CSSE).
 
 * **csbs** - https://www.csbs.org/information-covid-19-coronavirus - U.S. County data that comes from the Conference of State Bank Supervisors.
 
 __jhu__ data-source will be used as a default source if you don't specify a *source parameter* in your request.
 
 ## API Reference
 
-All endpoints are located at ``coronavirus-tracker-api.herokuapp.com/v2/`` and are accessible via https. For instance: you can get data per location by using this URL: 
+All endpoints are located at ``coronavirus-tracker-api.herokuapp.com/v2/`` and are accessible via https. For instance: you can get data per location by using this URL:
 *[https://coronavirus-tracker-api.herokuapp.com/v2/locations](https://coronavirus-tracker-api.herokuapp.com/v2/locations)*
 
 You can open the URL in your browser to further inspect the response. Or you can make this curl call in your terminal to see the prettified response:
@@ -54,7 +55,7 @@ Consume our API through [our super awesome and interactive SwaggerUI](https://co
 
 The [OpenAPI](https://swagger.io/docs/specification/about/) json definition can be downloaded at https://coronavirus-tracker-api.herokuapp.com/openapi.json
 
-## API Endpoints 
+## API Endpoints
 
 ### Sources Endpoint
 
@@ -363,7 +364,7 @@ These are the available API wrappers created by the community. They are not nece
 
 ### C#
 
-* [CovidSharp by @Abdirahiim](https://github.com/Abdirahiim/covidtrackerapiwrapper) 
+* [CovidSharp by @Abdirahiim](https://github.com/Abdirahiim/covidtrackerapiwrapper)
 * [Covid19Tracker.NET by @egbakou](https://github.com/egbakou/Covid19Tracker.NET)
 
 ### Python
@@ -407,7 +408,7 @@ You will need the following things properly installed on your computer.
 3. Create virtual environment and install all dependencies `$ pipenv sync --dev`
 4. Activate/enter the virtual environment `$ pipenv shell`
 
-And don't despair if don't get the python setup working on the first try. No one did. Guido got pretty close... once. But that's another story. Good luck. 
+And don't despair if don't get the python setup working on the first try. No one did. Guido got pretty close... once. But that's another story. Good luck.
 
 ## Running / Development