Added Testing coverage to the client

.coveragerc

@@ -0,0 +1,3 @@
+[run]
+source = apitesting
+omit = test*

README.md

@@ -1,3 +1,13 @@
 # apitesting
 
 A sample project illustrating how to write tests against an external API
+
+## Testing
+
+To run the test suite with coverage first install the package in editable mode with it's testing requirements:
+
+`pip install -e ".[testing]"`
+
+To run the project's tests
+
+`pytest --cov`

setup.py

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+import os
+
+from setuptools import setup, find_packages
+
+here = os.path.abspath(os.path.dirname(__file__))
+with open(os.path.join(here, 'README.md')) as f:
+    README = f.read()
+with open(os.path.join(here, 'CHANGES.txt')) as f:
+    CHANGES = f.read()
+
+requires = [
+    'requests'
+]
+
+tests_require = [
+    'pytest',
+    'pytest-cov',
+]
+
+setup(
+    name='apitesting',
+    version='0.0',
+    description='A toy API client with tests',
+    long_description=README + '\n\n' + CHANGES,
+    classifiers=[
+        'Programming Language :: Python'
+    ],
+    author='Androiddrew',
+    author_email='drew@androiddrew.com',
+    url='https://blog.androiddrew.com',
+    keywords='API client testing',
+    packages=find_packages(),
+    include_package_data=True,
+    zip_safe=False,
+    extras_require={
+        'testing': tests_require,
+    },
+    install_requires=requires,
+)