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-rw-r--r--Lib/test/test_range.py13
1 files changed, 13 insertions, 0 deletions
diff --git a/Lib/test/test_range.py b/Lib/test/test_range.py
index 73cbcc4717d..30fa129b50e 100644
--- a/Lib/test/test_range.py
+++ b/Lib/test/test_range.py
@@ -91,6 +91,19 @@ class RangeTest(unittest.TestCase):
r = range(-sys.maxsize, sys.maxsize, 2)
self.assertEqual(len(r), sys.maxsize)
+ def test_range_constructor_error_messages(self):
+ with self.assertRaisesRegex(
+ TypeError,
+ "range expected at least 1 argument, got 0"
+ ):
+ range()
+
+ with self.assertRaisesRegex(
+ TypeError,
+ "range expected at most 3 arguments, got 6"
+ ):
+ range(1, 2, 3, 4, 5, 6)
+
def test_large_operands(self):
x = range(10**20, 10**20+10, 3)
self.assertEqual(len(x), 4)