some more test setup refinements and make example testing part of tox runs

python/examples/conftest.py

@@ -1,2 +0,0 @@
-
-from deltachat.testplugin import *  # noqa

python/setup.py

@@ -22,6 +22,11 @@ def main():
         packages=setuptools.find_packages('src'),
         package_dir={'': 'src'},
         cffi_modules=['src/deltachat/_build.py:ffibuilder'],
+        entry_points = {
+            'pytest11': [
+                'deltachat.testplugin = deltachat.testplugin',
+            ],
+        },
         classifiers=[
             'Development Status :: 4 - Beta',
             'Intended Audience :: Developers',

python/tests/conftest.py

@@ -5,9 +5,6 @@ import pytest
 import py
 
 
-from deltachat.testplugin import *  # noqa
-
-
 @pytest.fixture(scope="session")
 def data():
     class Data:

python/tox.ini

@@ -7,9 +7,8 @@ envlist =
 
 [testenv]
 commands = 
-    pytest -n6 --reruns 2 --reruns-delay 5 -v -rsXx --ignored {posargs:tests}
+    pytest -n6 --reruns 2 --reruns-delay 5 -v -rsXx --ignored {posargs: tests examples}
-    pytest examples/test_examples.py
+    # python tests/package_wheels.py {toxworkdir}/wheelhouse
-    python tests/package_wheels.py {toxworkdir}/wheelhouse
 passenv = 
     TRAVIS 
     DCC_RS_DEV
@@ -68,7 +67,6 @@ commands =
 
 [pytest]
 addopts = -v -ra --strict-markers
-python_files = tests/test_*.py
 norecursedirs = .tox 
 xfail_strict=true
 timeout = 90