Add skip of test_1818 also for macOS

Fails because of https://gitlab.com/graphviz/graphviz/-/issues/1858.

diff --git a/rtest/test_regression.py b/rtest/test_regression.py
index 425f9b857d1a17b96b44806f5c61d2acf179487f..28b5f251c5b0108d547d5beb20e9c47361ec04d2 100644 (file)
--- a/rtest/test_regression.py
+++ b/rtest/test_regression.py
@@ -360,6 +360,12 @@ def test_1813():
     os.environ.get('build_system') == 'cmake',
     reason='The Windows "CMake" installer does not install lefty (#1753)'
 )
+# FIXME: Remove skip when
+# https://gitlab.com/graphviz/graphviz/-/issues/1858 is fixed
+@pytest.mark.skipif(
+    platform.system() == 'Darwin',
+    reason='lefty is not built on macOS (#1858)'
+)
 def test_1818():
     '''
     lefty -? should show usage