diff --git a/test/env/attr.c b/test/env/attr.c
index d9be825ecd089296fe0880f2930349592f44eea0..45b8c753a40424b1a4488376aaee80fb1d6912b4 100644
--- a/test/env/attr.c
+++ b/test/env/attr.c
@@ -60,3 +60,30 @@ static int env_test_attrs_lookup(struct unit_test_state *uts)
 	return 0;
 }
 ENV_TEST(env_test_attrs_lookup, 0);
+
+#ifdef CONFIG_REGEX
+static int env_test_attrs_lookup_regex(struct unit_test_state *uts)
+{
+	char attrs[32];
+
+	ut_assertok(env_attr_lookup("foo1?:bar", "foo", attrs));
+	ut_asserteq_str("bar", attrs);
+
+	ut_assertok(env_attr_lookup("foo1?:bar", "foo1", attrs));
+	ut_asserteq_str("bar", attrs);
+
+	ut_assertok(env_attr_lookup(".foo:bar", ".foo", attrs));
+	ut_asserteq_str("bar", attrs);
+
+	ut_assertok(env_attr_lookup(".foo:bar", "ufoo", attrs));
+	ut_asserteq_str("bar", attrs);
+
+	ut_assertok(env_attr_lookup("\\.foo:bar", ".foo", attrs));
+	ut_asserteq_str("bar", attrs);
+
+	ut_asserteq(-ENOENT, env_attr_lookup("\\.foo:bar", "ufoo", attrs));
+
+	return 0;
+}
+ENV_TEST(env_test_attrs_lookup_regex, 0);
+#endif