From 74e8589e3530b8d642b5d6dea255fe7768be6087 Mon Sep 17 00:00:00 2001
From: Paul Ganssle <paul@ganssle.io>
Date: Wed, 2 Sep 2020 15:35:01 -0400
Subject: [PATCH] Auto-skip zope tests if zope.interface not present

This is a little more error-prone, but it's much more convenient to
invoke, since it doesn't involve skipping the "zope" marker.
---
 tests/test_validators.py | 10 +++++++---
 tox.ini                  |  1 -
 2 files changed, 7 insertions(+), 4 deletions(-)

diff --git a/tests/test_validators.py b/tests/test_validators.py
index 40c9dbfd1..1393e4457 100644
--- a/tests/test_validators.py
+++ b/tests/test_validators.py
@@ -30,8 +30,13 @@
 
 @pytest.fixture(scope="module")
 def zope():
-    import zope
-    import zope.interface
+    try:
+        import zope
+        import zope.interface
+    except ImportError:
+        raise pytest.skip(
+            "zope-related tests skipped when zope.interface is not installed"
+        )
 
     return zope
 
@@ -239,7 +244,6 @@ def f():
     return IFoo
 
 
-@pytest.mark.zope
 class TestProvides(object):
     """
     Tests for `provides`.
diff --git a/tox.ini b/tox.ini
index 95fa28b54..1f04ec79a 100644
--- a/tox.ini
+++ b/tox.ini
@@ -1,7 +1,6 @@
 [pytest]
 addopts = -ra
 testpaths = tests
-markers = zope
 filterwarnings =
     once::Warning
     ignore:::pympler[.*]