make: report code coverage

1. https://coverage.readthedocs.io/en/latest/config.html

Author: ligurio

.coveragerc

@@ -0,0 +1,9 @@
+[run]
+branch = True
+
+[report]
+include =
+    ./*
+omit =
+    lib/tarantool-python/*
+    lib/msgpack-python/*

.github/workflows/test.yml

@@ -58,3 +58,6 @@ jobs:
     - name: run regression tests
       run: |
        make test
+    - name: code coverage
+      run: |
+       PYTHON="coverage run" make test_unittest

Makefile

@@ -1,5 +1,7 @@
 TEST_RUN_EXTRA_PARAMS?=
 PYTHON?=python
+MAKEFILE_PATH := $(abspath $(lastword $(MAKEFILE_LIST)))
+PROJECT_DIR := $(patsubst %/,%,$(dir $(MAKEFILE_PATH)))
 
 default:
 	false
@@ -18,6 +20,9 @@ test_integration:
 test_unittest:
 	$(PYTHON) -m unittest discover test/unittest/
 
+coverage_report: test_unittest
+	coverage report -m
+
 test: test_integration test_unittest
 
 .PHONY: lint flake8 luacheck test test_integration

requirements-test.txt

@@ -1,2 +1,3 @@
+coverage==4.5.3
 flake8==3.7.9
 hypothesis==4.*