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Diffstat (limited to 'lib/python2.7/test/test_format.py')
| -rw-r--r-- | lib/python2.7/test/test_format.py | 307 |
1 files changed, 307 insertions, 0 deletions
diff --git a/lib/python2.7/test/test_format.py b/lib/python2.7/test/test_format.py new file mode 100644 index 0000000..dd30efa --- /dev/null +++ b/lib/python2.7/test/test_format.py @@ -0,0 +1,307 @@ +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() |