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| author | Pablo Galindo <Pablogsal@gmail.com> | 2020-01-05 17:30:53 (GMT) |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2020-01-05 17:30:53 (GMT) |
| commit | 4b66fa6ce9c37e70b55af220d0e07368319de803 (patch) | |
| tree | e6863cade7856b951c4ee966df8b43fd8b6d5419 /Lib/test/test_range.py | |
| parent | b121a4a45ff4bab8812a9b26ceffe5ad642f5d5a (diff) | |
| download | cpython-4b66fa6ce9c37e70b55af220d0e07368319de803.zip cpython-4b66fa6ce9c37e70b55af220d0e07368319de803.tar.gz cpython-4b66fa6ce9c37e70b55af220d0e07368319de803.tar.bz2 | |
bpo-39200: Correct the error message for range() empty constructor (GH-17813)
Co-authored-by: Serhiy Storchaka <storchaka@gmail.com>
Diffstat (limited to 'Lib/test/test_range.py')
| -rw-r--r-- | Lib/test/test_range.py | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/Lib/test/test_range.py b/Lib/test/test_range.py index 73cbcc4..30fa129 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) |