Added support for code test coverage calculations.

(Redmine issue: #3443)

.coveragerc

+[run]
+source = ./lib

.gitignore

 !.gitignore
 .directory
+.coverage
 *~
 *.aux
 *.log

Makefile

@@ -41,6 +41,7 @@ VENV_PATH   ?= venv
 PYTHON      = python3
 PIP         = pip
 NOSETESTS   = nosetests
+COVERAGE    = coverage
 TWINE       = twine
 PYBABEL     = pybabel
 
@@ -149,6 +150,7 @@ help:
 	@echo "  * $(GREEN)pyflakes$(NC): check project with pyflakes"
 	@echo "  * $(GREEN)pylint$(NC): check project with pylint"
 	@echo "  * $(GREEN)test$(NC): run unit tests with nosetest"
+	@echo "  * $(GREEN)coverage$(NC): check test code coverage with nosetest and coverage"
 	@echo ""
 	@echo "  * $(GREEN)build-webui$(NC): setup web interface locally"
 	@echo "  * $(GREEN)build-package-whl$(NC): actually generate Python package"
@@ -499,7 +501,7 @@ cpybabel-compile: FORCE
 		$(PYBABEL) compile -d $${class}translations; \
 	done
 
-#\ 
+#\
 # Alternative solution that uses the hawat-cli utility:
 #   APP_ROOT_PATH=$(shell realpath ./chroot) hawat-cli intl init $(INIT_LOCALE)
 #
@@ -593,6 +595,11 @@ test:
 	@echo "Python version: `$(PYTHON) --version`"
 	APP_ROOT_PATH=$(shell realpath ./chroot) PYTHONPATH=$(DIR_LIB) $(NOSETESTS)
 
+coverage:
+	@echo "\n$(GREEN)*** Checking test code coverage with nosetests and coverage ***$(NC)\n"
+	@echo "Python version: `$(PYTHON) --version`"
+	APP_ROOT_PATH=$(shell realpath ./chroot) PYTHONPATH=$(DIR_LIB) $(COVERAGE) run -m nose
+
 
 #-------------------------------------------------------------------------------
 

conf/requirements-dev.pip

 setuptools==41.6.0
 wheel==0.33.6
 nose==1.3.7
+coverage==5.0.3
 pyflakes==2.1.1
 pylint==2.4.3
 sphinx==2.2.1

conf/requirements-latest-dev.pip

 setuptools
 wheel
 nose
+coverage
 pyflakes
 pylint
 sphinx