Set up code coverage testing during CI

Author: akx

.coveragerc

@@ -0,0 +1,12 @@
+[run]
+omit =
+    setup.py
+
+[report]
+exclude_lines =
+    @abstract
+    if TYPE_CHECKING:
+    if __name__ == .__main__.:
+    pragma: no cover
+    raise AssertionError
+    raise NotImplementedError

.gitignore

@@ -2,8 +2,7 @@
 __pycache__
 ENV/
 .DS_Store
-UpCloud.egg-info/
-*.pyc
+*.py[cod]
 build/
 dist/
 *.egg-info
@@ -13,6 +12,10 @@ docs/html/
 .cache
 .vscode/
 
+# coverage
+.coverage
+htmlcov
+
 # pyenv
 .python-version
 

requirements-dev.in

@@ -11,5 +11,6 @@ isort
 mock
 pip-tools
 pytest
+pytest-cov
 responses
 safety

requirements-dev.txt

@@ -25,6 +25,8 @@ click==7.1.2
     #   black
     #   pip-tools
     #   safety
+coverage==5.5
+    # via pytest-cov
 dparse==0.5.1
     # via safety
 flake8-bandit==2.1.2
@@ -99,8 +101,12 @@ pyflakes==2.2.0
     # via flake8
 pyparsing==2.4.7
     # via packaging
-pytest==6.2.3
+pytest-cov==2.11.1
     # via -r requirements-dev.in
+pytest==6.2.3
+    # via
+    #   -r requirements-dev.in
+    #   pytest-cov
 pyyaml==5.4.1
     # via
     #   bandit

tox.ini

@@ -8,7 +8,7 @@ envlist = py36, py37, py38, py39, pypy3
 skip_missing_interpreters = True
 
 [testenv]
-commands = py.test test/
+commands = py.test --cov=test --cov={envsitepackagesdir}/upcloud_api --cov-report term-missing test/
 deps = -rrequirements-dev.txt
 
 [testenv:integration]