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53 lines
1.8 KiB
Python
53 lines
1.8 KiB
Python
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from test_support import verbose
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import string, sys
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# test string formatting operator (I am not sure if this is being tested
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# elsewhere but, surely, some of the given cases are *not* tested because
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# they crash python)
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# test on unicode strings as well
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def testformat(formatstr, args, output=None):
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if verbose:
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if output:
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print "%s %% %s =? %s ..." %\
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(repr(formatstr), repr(args), repr(output)),
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else:
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print "%s %% %s works? ..." % (repr(formatstr), repr(args)),
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try:
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result = formatstr % args
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except OverflowError:
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if verbose:
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print 'overflow (this is fine)'
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else:
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if output and result != output:
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if verbose:
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print 'no'
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print "%s %% %s == %s != %s" %\
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(repr(formatstr), repr(args), repr(result), repr(output))
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else:
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if verbose:
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print 'yes'
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def testboth(formatstr, *args):
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testformat(formatstr, *args)
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testformat(unicode(formatstr), *args)
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testboth("%.1d", (1,), "1")
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testboth("%.*d", (sys.maxint,1)) # expect overflow
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testboth("%.100d", (1,), '0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001')
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testboth("%#.117x", (1,), '0x000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001')
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testboth("%#.118x", (1,), '0x0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001')
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testboth("%f", (1.0,), "1.000000")
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# these are trying to test the limits of the internal magic-number-length
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# formatting buffer, if that number changes then these tests are less
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# effective
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testboth("%#.*g", (109, -1.e+49/3.))
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testboth("%#.*g", (110, -1.e+49/3.))
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testboth("%#.*g", (110, -1.e+100/3.))
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# test some ridiculously large precision, expect overflow
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testboth('%12.*f', (123456, 1.0))
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