Added some helpful tools and configurations

.coveragerc

@@ -0,0 +1,2 @@
+[run]
+omit = qurator/dinglehopper/tests/*

README-DEV.md

@@ -1,10 +1,37 @@
-Testing
--------
+# Testing
+
 Use `pytest` to run the tests in [the tests directory](qurator/dinglehopper/tests):
-~~~
+```bash
 virtualenv -p /usr/bin/python3 venv
 . venv/bin/activate
 pip install -r requirements.txt
-pip install pytest
+pip install -r requirements-dev.txt
 pytest
-~~~
+```
+
+### Test running examples
+### Only unit tests
+```bash
+pytest -m "not integration"
+```
+
+### Only integration tests
+```bash
+pytest -m integration
+```
+
+### All tests
+```bash
+pytest
+```
+
+### All tests with code coverage
+```bash
+pytest --cov=qurator --cov-report=html
+```
+
+### Static code analysis
+```bash
+pytest -k "not test" --flake8
+pytest -k "not test" --mypy
+```

requirements-dev.txt

@@ -0,0 +1,4 @@
+pytest
+pytest-flake8
+pytest-cov
+pytest-mypy

setup.cfg

@@ -1,2 +1,12 @@
 [flake8]
-max-line-length = 90
+max-line-length = 88
+extend-ignore = E203, W503
+
+[pylint]
+max-line-length = 88
+
+[pylint.messages_control]
+disable = C0330, C0326
+
+[mypy]
+ignore_missing_imports = True

setup.py

@@ -4,6 +4,9 @@ from setuptools import find_packages, setup
 with open("requirements.txt") as fp:
     install_requires = fp.read()
 
+with open('requirements-dev.txt') as fp:
+    tests_require = fp.read()
+
 setup(
     name="dinglehopper",
     author="Mike Gerber, The QURATOR SPK Team",
@@ -16,6 +19,7 @@ setup(
     namespace_packages=["qurator"],
     packages=find_packages(exclude=["*.tests", "*.tests.*", "tests.*", "tests"]),
     install_requires=install_requires,
+    tests_require=tests_require,
     package_data={
         "": ["*.json", "templates/*"],
     },