| from test_support import verbose |
| import string, sys |
| |
| # 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): |
| 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 verbose: |
| print 'overflow (this is fine)' |
| else: |
| if output and result != output: |
| 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): |
| testformat(formatstr, *args) |
| testformat(unicode(formatstr), *args) |
| |
| |
| testboth("%.1d", (1,), "1") |
| testboth("%.*d", (sys.maxint,1)) # expect overflow |
| testboth("%.100d", (1,), '0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001') |
| testboth("%#.117x", (1,), '0x000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001') |
| testboth("%#.118x", (1,), '0x0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001') |
| |
| 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)) |
| |