forked from Rust-related/RustPython
Update test_format.py from Cpython v3.11.2
This commit is contained in:
Andrey Maltsev
155
Lib/test/test_format.py
vendored
155
Lib/test/test_format.py
vendored
@@ -1,6 +1,7 @@
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from test.support import verbose, TestFailed
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import locale
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import sys
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import re
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import test.support as support
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import unittest
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@@ -248,7 +249,7 @@ class FormatTest(unittest.TestCase):
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# base marker shouldn't change the size
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testcommon("%0#35.33o", big, "0o012345670123456701234567012345670")
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# Some small ints, in both Python int and flavors).
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# Some small ints, in both Python int and flavors.
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testcommon("%d", 42, "42")
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testcommon("%d", -42, "-42")
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testcommon("%d", 42.0, "42")
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@@ -274,9 +275,9 @@ class FormatTest(unittest.TestCase):
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test_exc_common('% %s', 1, ValueError,
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"unsupported format character '%' (0x25) at index 2")
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test_exc_common('%d', '1', TypeError,
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"%d format: a number is required, not str")
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"%d format: a real number is required, not str")
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test_exc_common('%d', b'1', TypeError,
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"%d format: a number is required, not bytes")
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"%d format: a real number is required, not bytes")
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test_exc_common('%x', '1', TypeError,
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"%x format: an integer is required, not str")
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test_exc_common('%x', 3.14, TypeError,
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@@ -493,6 +494,154 @@ class FormatTest(unittest.TestCase):
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with self.assertRaises(ValueError) as cm:
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format(c, ".%sf" % (INT_MAX + 1))
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def test_g_format_has_no_trailing_zeros(self):
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# regression test for bugs.python.org/issue40780
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self.assertEqual("%.3g" % 1505.0, "1.5e+03")
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self.assertEqual("%#.3g" % 1505.0, "1.50e+03")
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self.assertEqual(format(1505.0, ".3g"), "1.5e+03")
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self.assertEqual(format(1505.0, "#.3g"), "1.50e+03")
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self.assertEqual(format(12300050.0, ".6g"), "1.23e+07")
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self.assertEqual(format(12300050.0, "#.6g"), "1.23000e+07")
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# TODO: RUSTPYTHON
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@unittest.expectedFailure
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def test_with_two_commas_in_format_specifier(self):
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error_msg = re.escape("Cannot specify ',' with ','.")
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with self.assertRaisesRegex(ValueError, error_msg):
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'{:,,}'.format(1)
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# TODO: RUSTPYTHON
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@unittest.expectedFailure
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def test_with_two_underscore_in_format_specifier(self):
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error_msg = re.escape("Cannot specify '_' with '_'.")
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with self.assertRaisesRegex(ValueError, error_msg):
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'{:__}'.format(1)
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# TODO: RUSTPYTHON
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@unittest.expectedFailure
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def test_with_a_commas_and_an_underscore_in_format_specifier(self):
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error_msg = re.escape("Cannot specify both ',' and '_'.")
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with self.assertRaisesRegex(ValueError, error_msg):
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'{:,_}'.format(1)
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# TODO: RUSTPYTHON
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@unittest.expectedFailure
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def test_with_an_underscore_and_a_comma_in_format_specifier(self):
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error_msg = re.escape("Cannot specify both ',' and '_'.")
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with self.assertRaisesRegex(ValueError, error_msg):
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'{:_,}'.format(1)
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# TODO: RUSTPYTHON
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@unittest.expectedFailure
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def test_better_error_message_format(self):
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# https://bugs.python.org/issue20524
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for value in [12j, 12, 12.0, "12"]:
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with self.subTest(value=value):
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# The format spec must be invalid for all types we're testing.
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# '%M' will suffice.
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bad_format_spec = '%M'
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err = re.escape("Invalid format specifier "
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f"'{bad_format_spec}' for object of type "
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f"'{type(value).__name__}'")
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with self.assertRaisesRegex(ValueError, err):
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f"xx{{value:{bad_format_spec}}}yy".format(value=value)
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# Also test the builtin format() function.
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with self.assertRaisesRegex(ValueError, err):
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format(value, bad_format_spec)
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# Also test f-strings.
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with self.assertRaisesRegex(ValueError, err):
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eval("f'xx{value:{bad_format_spec}}yy'")
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# TODO: RUSTPYTHON
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@unittest.expectedFailure
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def test_unicode_in_error_message(self):
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str_err = re.escape(
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"Invalid format specifier '%ЫйЯЧ' for object of type 'str'")
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with self.assertRaisesRegex(ValueError, str_err):
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"{a:%ЫйЯЧ}".format(a='a')
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# TODO: RUSTPYTHON
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@unittest.expectedFailure
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def test_negative_zero(self):
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## default behavior
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self.assertEqual(f"{-0.:.1f}", "-0.0")
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self.assertEqual(f"{-.01:.1f}", "-0.0")
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self.assertEqual(f"{-0:.1f}", "0.0") # integers do not distinguish -0
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## z sign option
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self.assertEqual(f"{0.:z.1f}", "0.0")
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self.assertEqual(f"{0.:z6.1f}", " 0.0")
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self.assertEqual(f"{-1.:z6.1f}", " -1.0")
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self.assertEqual(f"{-0.:z.1f}", "0.0")
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self.assertEqual(f"{.01:z.1f}", "0.0")
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self.assertEqual(f"{-0:z.1f}", "0.0") # z is allowed for integer input
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self.assertEqual(f"{-.01:z.1f}", "0.0")
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self.assertEqual(f"{0.:z.2f}", "0.00")
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self.assertEqual(f"{-0.:z.2f}", "0.00")
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self.assertEqual(f"{.001:z.2f}", "0.00")
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self.assertEqual(f"{-.001:z.2f}", "0.00")
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self.assertEqual(f"{0.:z.1e}", "0.0e+00")
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self.assertEqual(f"{-0.:z.1e}", "0.0e+00")
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self.assertEqual(f"{0.:z.1E}", "0.0E+00")
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self.assertEqual(f"{-0.:z.1E}", "0.0E+00")
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self.assertEqual(f"{-0.001:z.2e}", "-1.00e-03") # tests for mishandled
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# rounding
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self.assertEqual(f"{-0.001:z.2g}", "-0.001")
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self.assertEqual(f"{-0.001:z.2%}", "-0.10%")
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self.assertEqual(f"{-00000.000001:z.1f}", "0.0")
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self.assertEqual(f"{-00000.:z.1f}", "0.0")
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self.assertEqual(f"{-.0000000000:z.1f}", "0.0")
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self.assertEqual(f"{-00000.000001:z.2f}", "0.00")
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self.assertEqual(f"{-00000.:z.2f}", "0.00")
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self.assertEqual(f"{-.0000000000:z.2f}", "0.00")
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self.assertEqual(f"{.09:z.1f}", "0.1")
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self.assertEqual(f"{-.09:z.1f}", "-0.1")
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self.assertEqual(f"{-0.: z.0f}", " 0")
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self.assertEqual(f"{-0.:+z.0f}", "+0")
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self.assertEqual(f"{-0.:-z.0f}", "0")
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self.assertEqual(f"{-1.: z.0f}", "-1")
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self.assertEqual(f"{-1.:+z.0f}", "-1")
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self.assertEqual(f"{-1.:-z.0f}", "-1")
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self.assertEqual(f"{0.j:z.1f}", "0.0+0.0j")
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self.assertEqual(f"{-0.j:z.1f}", "0.0+0.0j")
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self.assertEqual(f"{.01j:z.1f}", "0.0+0.0j")
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self.assertEqual(f"{-.01j:z.1f}", "0.0+0.0j")
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self.assertEqual(f"{-0.:z>6.1f}", "zz-0.0") # test fill, esp. 'z' fill
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self.assertEqual(f"{-0.:z>z6.1f}", "zzz0.0")
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self.assertEqual(f"{-0.:x>z6.1f}", "xxx0.0")
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self.assertEqual(f"{-0.:🖤>z6.1f}", "🖤🖤🖤0.0") # multi-byte fill char
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# TODO: RUSTPYTHON
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@unittest.expectedFailure
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def test_specifier_z_error(self):
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error_msg = re.compile("Invalid format specifier '.*z.*'")
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with self.assertRaisesRegex(ValueError, error_msg):
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f"{0:z+f}" # wrong position
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with self.assertRaisesRegex(ValueError, error_msg):
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f"{0:fz}" # wrong position
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error_msg = re.escape("Negative zero coercion (z) not allowed")
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with self.assertRaisesRegex(ValueError, error_msg):
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f"{0:zd}" # can't apply to int presentation type
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with self.assertRaisesRegex(ValueError, error_msg):
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f"{'x':zs}" # can't apply to string
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error_msg = re.escape("unsupported format character 'z'")
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with self.assertRaisesRegex(ValueError, error_msg):
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"%z.1f" % 0 # not allowed in old style string interpolation
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if __name__ == "__main__":
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unittest.main()
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