Add clean & tests commands to makefile

Makefile

@@ -1,6 +1,35 @@
 VERSION:=$(shell python setup.py --version)
 
-publish:
+clean:
+	# Clean sources
+	find dependency_injector -name '*.py[co]' -delete
+	find dependency_injector -name '__pycache__' -delete
+	find dependency_injector -name '*.c' -delete
+	find dependency_injector -name '*.so' -delete
+	# Clean tests
+	find tests -name '*.py[co]' -delete
+	find tests -name '__pycache__' -delete
+	# Clean examples
+	find examples -name '*.py[co]' -delete
+	find examples -name '__pycache__' -delete
+
+tests: clean
+	# Unit tests with coverage report
+	coverage erase
+	coverage run --rcfile=./.coveragerc -m unittest2 discover tests
+	coverage report --rcfile=./.coveragerc
+	coverage html --rcfile=./.coveragerc
+	coverage erase
+	# Static analysis
+	flake8 --max-complexity=10 dependency_injector/
+	flake8 --max-complexity=10 examples/
+	# Code style analysis
+	pydocstyle dependency_injector/
+	pydocstyle examples/
+
+publish: clean
+	# Create and upload build
 	python setup.py sdist upload
+	# Create and upload tag
 	git tag -a $(VERSION) -m 'version $(VERSION)'
 	git push --tags