| import sys |
| from test.test_support import verbose, have_unicode, TestFailed |
| import test.test_support as test_support |
| import unittest |
| |
| maxsize = test_support.MAX_Py_ssize_t |
| |
| # test string formatting operator (I am not sure if this is being tested |
| # elsewhere but, surely, some of the given cases are *not* tested because |
| # they crash python) |
| # test on unicode strings as well |
| |
| def testformat(formatstr, args, output=None, limit=None, overflowok=False): |
| if verbose: |
| if output: |
| print "%s %% %s =? %s ..." %\ |
| (repr(formatstr), repr(args), repr(output)), |
| else: |
| print "%s %% %s works? ..." % (repr(formatstr), repr(args)), |
| try: |
| result = formatstr % args |
| except OverflowError: |
| if not overflowok: |
| raise |
| if verbose: |
| print 'overflow (this is fine)' |
| else: |
| if output and limit is None and result != output: |
| if verbose: |
| print 'no' |
| raise AssertionError("%r %% %r == %r != %r" % |
| (formatstr, args, result, output)) |
| # when 'limit' is specified, it determines how many characters |
| # must match exactly; lengths must always match. |
| # ex: limit=5, '12345678' matches '12345___' |
| # (mainly for floating point format tests for which an exact match |
| # can't be guaranteed due to rounding and representation errors) |
| elif output and limit is not None and ( |
| len(result)!=len(output) or result[:limit]!=output[:limit]): |
| if verbose: |
| print 'no' |
| print "%s %% %s == %s != %s" % \ |
| (repr(formatstr), repr(args), repr(result), repr(output)) |
| else: |
| if verbose: |
| print 'yes' |
| |
| |
| def testboth(formatstr, *args, **kwargs): |
| testformat(formatstr, *args, **kwargs) |
| if have_unicode: |
| testformat(unicode(formatstr), *args, **kwargs) |
| |
| |
| class FormatTest(unittest.TestCase): |
| def test_format(self): |
| testboth("%.1d", (1,), "1") |
| testboth("%.*d", (sys.maxint,1), overflowok=True) # expect overflow |
| testboth("%.100d", (1,), '00000000000000000000000000000000000000' |
| '000000000000000000000000000000000000000000000000000000' |
| '00000001', overflowok=True) |
| testboth("%#.117x", (1,), '0x00000000000000000000000000000000000' |
| '000000000000000000000000000000000000000000000000000000' |
| '0000000000000000000000000001', |
| overflowok=True) |
| testboth("%#.118x", (1,), '0x00000000000000000000000000000000000' |
| '000000000000000000000000000000000000000000000000000000' |
| '00000000000000000000000000001', |
| overflowok=True) |
| |
| testboth("%f", (1.0,), "1.000000") |
| # these are trying to test the limits of the internal magic-number-length |
| # formatting buffer, if that number changes then these tests are less |
| # effective |
| testboth("%#.*g", (109, -1.e+49/3.)) |
| testboth("%#.*g", (110, -1.e+49/3.)) |
| testboth("%#.*g", (110, -1.e+100/3.)) |
| |
| # test some ridiculously large precision, expect overflow |
| testboth('%12.*f', (123456, 1.0)) |
| |
| # check for internal overflow validation on length of precision |
| # these tests should no longer cause overflow in Python |
| # 2.7/3.1 and later. |
| testboth("%#.*g", (110, -1.e+100/3.)) |
| testboth("%#.*G", (110, -1.e+100/3.)) |
| testboth("%#.*f", (110, -1.e+100/3.)) |
| testboth("%#.*F", (110, -1.e+100/3.)) |
| |
| # Formatting of long integers. Overflow is not ok |
| testboth("%x", 10L, "a") |
| testboth("%x", 100000000000L, "174876e800") |
| testboth("%o", 10L, "12") |
| testboth("%o", 100000000000L, "1351035564000") |
| testboth("%d", 10L, "10") |
| testboth("%d", 100000000000L, "100000000000") |
| |
| big = 123456789012345678901234567890L |
| testboth("%d", big, "123456789012345678901234567890") |
| testboth("%d", -big, "-123456789012345678901234567890") |
| testboth("%5d", -big, "-123456789012345678901234567890") |
| testboth("%31d", -big, "-123456789012345678901234567890") |
| testboth("%32d", -big, " -123456789012345678901234567890") |
| testboth("%-32d", -big, "-123456789012345678901234567890 ") |
| testboth("%032d", -big, "-0123456789012345678901234567890") |
| testboth("%-032d", -big, "-123456789012345678901234567890 ") |
| testboth("%034d", -big, "-000123456789012345678901234567890") |
| testboth("%034d", big, "0000123456789012345678901234567890") |
| testboth("%0+34d", big, "+000123456789012345678901234567890") |
| testboth("%+34d", big, " +123456789012345678901234567890") |
| testboth("%34d", big, " 123456789012345678901234567890") |
| testboth("%.2d", big, "123456789012345678901234567890") |
| testboth("%.30d", big, "123456789012345678901234567890") |
| testboth("%.31d", big, "0123456789012345678901234567890") |
| testboth("%32.31d", big, " 0123456789012345678901234567890") |
| testboth("%d", float(big), "123456________________________", 6) |
| |
| big = 0x1234567890abcdef12345L # 21 hex digits |
| testboth("%x", big, "1234567890abcdef12345") |
| testboth("%x", -big, "-1234567890abcdef12345") |
| testboth("%5x", -big, "-1234567890abcdef12345") |
| testboth("%22x", -big, "-1234567890abcdef12345") |
| testboth("%23x", -big, " -1234567890abcdef12345") |
| testboth("%-23x", -big, "-1234567890abcdef12345 ") |
| testboth("%023x", -big, "-01234567890abcdef12345") |
| testboth("%-023x", -big, "-1234567890abcdef12345 ") |
| testboth("%025x", -big, "-0001234567890abcdef12345") |
| testboth("%025x", big, "00001234567890abcdef12345") |
| testboth("%0+25x", big, "+0001234567890abcdef12345") |
| testboth("%+25x", big, " +1234567890abcdef12345") |
| testboth("%25x", big, " 1234567890abcdef12345") |
| testboth("%.2x", big, "1234567890abcdef12345") |
| testboth("%.21x", big, "1234567890abcdef12345") |
| testboth("%.22x", big, "01234567890abcdef12345") |
| testboth("%23.22x", big, " 01234567890abcdef12345") |
| testboth("%-23.22x", big, "01234567890abcdef12345 ") |
| testboth("%X", big, "1234567890ABCDEF12345") |
| testboth("%#X", big, "0X1234567890ABCDEF12345") |
| testboth("%#x", big, "0x1234567890abcdef12345") |
| testboth("%#x", -big, "-0x1234567890abcdef12345") |
| testboth("%#.23x", -big, "-0x001234567890abcdef12345") |
| testboth("%#+.23x", big, "+0x001234567890abcdef12345") |
| testboth("%# .23x", big, " 0x001234567890abcdef12345") |
| testboth("%#+.23X", big, "+0X001234567890ABCDEF12345") |
| testboth("%#-+.23X", big, "+0X001234567890ABCDEF12345") |
| testboth("%#-+26.23X", big, "+0X001234567890ABCDEF12345") |
| testboth("%#-+27.23X", big, "+0X001234567890ABCDEF12345 ") |
| testboth("%#+27.23X", big, " +0X001234567890ABCDEF12345") |
| # next one gets two leading zeroes from precision, and another from the |
| # 0 flag and the width |
| testboth("%#+027.23X", big, "+0X0001234567890ABCDEF12345") |
| # same, except no 0 flag |
| testboth("%#+27.23X", big, " +0X001234567890ABCDEF12345") |
| testboth("%x", float(big), "123456_______________", 6) |
| |
| big = 012345670123456701234567012345670L # 32 octal digits |
| testboth("%o", big, "12345670123456701234567012345670") |
| testboth("%o", -big, "-12345670123456701234567012345670") |
| testboth("%5o", -big, "-12345670123456701234567012345670") |
| testboth("%33o", -big, "-12345670123456701234567012345670") |
| testboth("%34o", -big, " -12345670123456701234567012345670") |
| testboth("%-34o", -big, "-12345670123456701234567012345670 ") |
| testboth("%034o", -big, "-012345670123456701234567012345670") |
| testboth("%-034o", -big, "-12345670123456701234567012345670 ") |
| testboth("%036o", -big, "-00012345670123456701234567012345670") |
| testboth("%036o", big, "000012345670123456701234567012345670") |
| testboth("%0+36o", big, "+00012345670123456701234567012345670") |
| testboth("%+36o", big, " +12345670123456701234567012345670") |
| testboth("%36o", big, " 12345670123456701234567012345670") |
| testboth("%.2o", big, "12345670123456701234567012345670") |
| testboth("%.32o", big, "12345670123456701234567012345670") |
| testboth("%.33o", big, "012345670123456701234567012345670") |
| testboth("%34.33o", big, " 012345670123456701234567012345670") |
| testboth("%-34.33o", big, "012345670123456701234567012345670 ") |
| testboth("%o", big, "12345670123456701234567012345670") |
| testboth("%#o", big, "012345670123456701234567012345670") |
| testboth("%#o", -big, "-012345670123456701234567012345670") |
| testboth("%#.34o", -big, "-0012345670123456701234567012345670") |
| testboth("%#+.34o", big, "+0012345670123456701234567012345670") |
| testboth("%# .34o", big, " 0012345670123456701234567012345670") |
| testboth("%#+.34o", big, "+0012345670123456701234567012345670") |
| testboth("%#-+.34o", big, "+0012345670123456701234567012345670") |
| testboth("%#-+37.34o", big, "+0012345670123456701234567012345670 ") |
| testboth("%#+37.34o", big, " +0012345670123456701234567012345670") |
| # next one gets one leading zero from precision |
| testboth("%.33o", big, "012345670123456701234567012345670") |
| # base marker shouldn't change that, since "0" is redundant |
| testboth("%#.33o", big, "012345670123456701234567012345670") |
| # but reduce precision, and base marker should add a zero |
| testboth("%#.32o", big, "012345670123456701234567012345670") |
| # one leading zero from precision, and another from "0" flag & width |
| testboth("%034.33o", big, "0012345670123456701234567012345670") |
| # base marker shouldn't change that |
| testboth("%0#34.33o", big, "0012345670123456701234567012345670") |
| testboth("%o", float(big), "123456__________________________", 6) |
| |
| # Some small ints, in both Python int and long flavors). |
| testboth("%d", 42, "42") |
| testboth("%d", -42, "-42") |
| testboth("%d", 42L, "42") |
| testboth("%d", -42L, "-42") |
| testboth("%d", 42.0, "42") |
| testboth("%#x", 1, "0x1") |
| testboth("%#x", 1L, "0x1") |
| testboth("%#X", 1, "0X1") |
| testboth("%#X", 1L, "0X1") |
| testboth("%#x", 1.0, "0x1") |
| testboth("%#o", 1, "01") |
| testboth("%#o", 1L, "01") |
| testboth("%#o", 0, "0") |
| testboth("%#o", 0L, "0") |
| testboth("%o", 0, "0") |
| testboth("%o", 0L, "0") |
| testboth("%d", 0, "0") |
| testboth("%d", 0L, "0") |
| testboth("%#x", 0, "0x0") |
| testboth("%#x", 0L, "0x0") |
| testboth("%#X", 0, "0X0") |
| testboth("%#X", 0L, "0X0") |
| |
| testboth("%x", 0x42, "42") |
| testboth("%x", -0x42, "-42") |
| testboth("%x", 0x42L, "42") |
| testboth("%x", -0x42L, "-42") |
| testboth("%x", float(0x42), "42") |
| |
| testboth("%o", 042, "42") |
| testboth("%o", -042, "-42") |
| testboth("%o", 042L, "42") |
| testboth("%o", -042L, "-42") |
| testboth("%o", float(042), "42") |
| |
| # alternate float formatting |
| testformat('%g', 1.1, '1.1') |
| testformat('%#g', 1.1, '1.10000') |
| |
| # Regression test for http://bugs.python.org/issue15516. |
| class IntFails(object): |
| def __int__(self): |
| raise TestFailed |
| def __long__(self): |
| return 0 |
| |
| fst = IntFails() |
| testformat("%x", fst, '0') |
| |
| # Test exception for unknown format characters |
| if verbose: |
| print 'Testing exceptions' |
| |
| def test_exc(formatstr, args, exception, excmsg): |
| try: |
| testformat(formatstr, args) |
| except exception, exc: |
| if str(exc) == excmsg: |
| if verbose: |
| print "yes" |
| else: |
| if verbose: print 'no' |
| print 'Unexpected ', exception, ':', repr(str(exc)) |
| except: |
| if verbose: print 'no' |
| print 'Unexpected exception' |
| raise |
| else: |
| raise TestFailed, 'did not get expected exception: %s' % excmsg |
| |
| test_exc('abc %a', 1, ValueError, |
| "unsupported format character 'a' (0x61) at index 5") |
| if have_unicode: |
| test_exc(unicode('abc %\u3000','raw-unicode-escape'), 1, ValueError, |
| "unsupported format character '?' (0x3000) at index 5") |
| |
| test_exc('%d', '1', TypeError, "%d format: a number is required, not str") |
| test_exc('%g', '1', TypeError, "float argument required, not str") |
| test_exc('no format', '1', TypeError, |
| "not all arguments converted during string formatting") |
| test_exc('no format', u'1', TypeError, |
| "not all arguments converted during string formatting") |
| test_exc(u'no format', '1', TypeError, |
| "not all arguments converted during string formatting") |
| test_exc(u'no format', u'1', TypeError, |
| "not all arguments converted during string formatting") |
| |
| class Foobar(long): |
| def __oct__(self): |
| # Returning a non-string should not blow up. |
| return self + 1 |
| |
| test_exc('%o', Foobar(), TypeError, |
| "expected string or Unicode object, long found") |
| |
| if maxsize == 2**31-1: |
| # crashes 2.2.1 and earlier: |
| try: |
| "%*d"%(maxsize, -127) |
| except MemoryError: |
| pass |
| else: |
| raise TestFailed, '"%*d"%(maxsize, -127) should fail' |
| |
| def test_main(): |
| test_support.run_unittest(FormatTest) |
| |
| |
| if __name__ == "__main__": |
| unittest.main() |