+++ /dev/null
-'''\r
- Tests for fpformat module\r
- Nick Mathewson\r
-'''\r
-from test.test_support import run_unittest, import_module\r
-import unittest\r
-fpformat = import_module('fpformat', deprecated=True)\r
-fix, sci, NotANumber = fpformat.fix, fpformat.sci, fpformat.NotANumber\r
-\r
-StringType = type('')\r
-\r
-# Test the old and obsolescent fpformat module.\r
-#\r
-# (It's obsolescent because fix(n,d) == "%.*f"%(d,n) and\r
-# sci(n,d) == "%.*e"%(d,n)\r
-# for all reasonable numeric n and d, except that sci gives 3 exponent\r
-# digits instead of 2.\r
-#\r
-# Differences only occur for unreasonable n and d. <.2 wink>)\r
-\r
-class FpformatTest(unittest.TestCase):\r
-\r
- def checkFix(self, n, digits):\r
- result = fix(n, digits)\r
- if isinstance(n, StringType):\r
- n = repr(n)\r
- expected = "%.*f" % (digits, float(n))\r
-\r
- self.assertEqual(result, expected)\r
-\r
- def checkSci(self, n, digits):\r
- result = sci(n, digits)\r
- if isinstance(n, StringType):\r
- n = repr(n)\r
- expected = "%.*e" % (digits, float(n))\r
- # add the extra 0 if needed\r
- num, exp = expected.split("e")\r
- if len(exp) < 4:\r
- exp = exp[0] + "0" + exp[1:]\r
- expected = "%se%s" % (num, exp)\r
-\r
- self.assertEqual(result, expected)\r
-\r
- def test_basic_cases(self):\r
- self.assertEqual(fix(100.0/3, 3), '33.333')\r
- self.assertEqual(sci(100.0/3, 3), '3.333e+001')\r
-\r
- def test_reasonable_values(self):\r
- for d in range(7):\r
- for val in (1000.0/3, 1000, 1000.0, .002, 1.0/3, 1e10):\r
- for realVal in (val, 1.0/val, -val, -1.0/val):\r
- self.checkFix(realVal, d)\r
- self.checkSci(realVal, d)\r
-\r
- def test_failing_values(self):\r
- # Now for 'unreasonable n and d'\r
- self.assertEqual(fix(1.0, 1000), '1.'+('0'*1000))\r
- self.assertEqual(sci("1"+('0'*1000), 0), '1e+1000')\r
-\r
- # This behavior is inconsistent. sci raises an exception; fix doesn't.\r
- yacht = "Throatwobbler Mangrove"\r
- self.assertEqual(fix(yacht, 10), yacht)\r
- try:\r
- sci(yacht, 10)\r
- except NotANumber:\r
- pass\r
- else:\r
- self.fail("No exception on non-numeric sci")\r
-\r
-\r
-def test_main():\r
- run_unittest(FpformatTest)\r
-\r
-\r
-if __name__ == "__main__":\r
- test_main()\r