1 files changed, 46 insertions, 0 deletions
diff --git a/pym/portage/tests/dep/test_paren_reduce.py b/pym/portage/tests/dep/test_paren_reduce.py
new file mode 100644
index 000000000..3277ab58b
--- /dev/null
+++ b/pym/portage/tests/dep/test_paren_reduce.py
@@ -0,0 +1,46 @@
+# Copyright 2010 Gentoo Foundation
+# Distributed under the terms of the GNU General Public License v2
+
+from portage.tests import TestCase
+from portage.dep import paren_reduce
+from portage.exception import InvalidDependString
+
+class TestParenReduce(TestCase):
+
+	def testParenReduce(self):
+
+		test_cases = (
+			( "A", ["A"]),
+			( "( A )", [["A"]]),
+			( "|| ( A B )", [ "||", ["A", "B"] ]),
+			( "|| ( A || ( B C ) )", [ "||", ["A", "||", ["B", "C"]]]),
+			( "|| ( A || ( B C D ) )", [ "||", ["A", "||", ["B", "C", "D"]] ]),
+			( "|| ( A || ( B || ( C D ) E ) )", [ "||", ["A", "||", ["B", "||", ["C", "D"], "E"]] ]),
+			( "a? ( A )", ["a?", ["A"]]),
+		)
+		
+		test_cases_xfail = (
+			"( A",
+			"A )",
+
+			"||( A B )",
+			"|| (A B )",
+			"|| ( A B)",
+			"|| ( A B",
+			"|| A B )",
+
+			"|| A B",
+			"|| ( A B ) )",
+			"|| || B C",
+			
+			"|| ( A B || )",
+			
+			"a? A",
+		)
+
+		for dep_str, expected_result in test_cases:
+			self.assertEqual(paren_reduce(dep_str), expected_result)
+
+		for dep_str in test_cases_xfail:
+			self.assertRaisesMsg(dep_str,
+				InvalidDependString, paren_reduce, dep_str)