From ab7e97df3fa9661213769fbba6ee1dd06e3fd6db Mon Sep 17 00:00:00 2001
From: cpurmessur <70621228+cpurmessur@users.noreply.github.com>
Date: Thu, 18 Feb 2021 19:09:36 -0500
Subject: add test to regular (#4624)

Improve test coverage of regular
---
 networkx/algorithms/tests/test_regular.py | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/networkx/algorithms/tests/test_regular.py b/networkx/algorithms/tests/test_regular.py
index 2aaeb32a..46a92a4a 100644
--- a/networkx/algorithms/tests/test_regular.py
+++ b/networkx/algorithms/tests/test_regular.py
@@ -62,6 +62,11 @@ class TestIsRegular:
         g = gen.lollipop_graph(5, 5)
         assert not reg.is_regular(g)
 
+    def test_is_regular4(self):
+        g = nx.DiGraph()
+        g.add_edges_from([(0, 1), (1, 2), (2, 0)])
+        assert reg.is_regular(g)
+
 
 class TestIsKRegular:
     def test_is_k_regular1(self):
-- 
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