Drop support for testing via setup.py

CHANGES.rst

@@ -5,6 +5,8 @@ CHANGES
 3.7.0 (unreleased)
 ------------------
 
+- Drop support for running tests using ``python setup.py test``.
+
 - Drop Python 3.5 support.
 
 - Extended ``<paraStyle>``:

setup.py

@@ -18,20 +18,6 @@
 def read(*rnames):
     return open(os.path.join(os.path.dirname(__file__), *rnames)).read()
 
-def alltests():
-    import os
-    import sys
-    import unittest
-    # use the zope.testrunner machinery to find all the
-    # test suites we've put under ourselves
-    import zope.testrunner.find
-    import zope.testrunner.options
-    here = os.path.abspath(os.path.join(os.path.dirname(__file__), 'src'))
-    args = sys.argv[:]
-    defaults = ["--test-path", here]
-    options = zope.testrunner.options.get_options(args, defaults)
-    suites = list(zope.testrunner.find.find_suites(options))
-    return unittest.TestSuite(suites)
 
 TESTS_REQUIRE = [
     'Pillow',
@@ -93,8 +79,6 @@ def alltests():
             'dtd = z3c.rml.dtd:main',
             'reference = z3c.rml.reference:main'],
         },
-    tests_require=TESTS_REQUIRE,
-    test_suite='__main__.alltests',
     include_package_data=True,
     zip_safe=False,
     )