test_decimal.py

import unittest
from decimal import *

from iptest import run_test, skipUnlessIronPython

@skipUnlessIronPython()
class DecimalTest(unittest.TestCase):
    def test_explicit_from_System_Decimal(self):
        import System

        #int
        self.assertEqual(str(Decimal(System.Decimal.Parse('45'))), '45')

        #float
        self.assertEqual(str(Decimal(System.Decimal.Parse('45.34'))), '45.34')

    def test_formatting(self):
        import System
        d = System.Decimal.Parse('1.4274243253253245432543254545')
        self.assertEqual('{}'.format(d), '1.4274243253253245432543254545')
        self.assertEqual('{:,.2f}'.format(d), '1.43')
        self.assertEqual('{:e}'.format(d), '1.427424325325e+00')

        d = System.Decimal.Parse('4000000000.40000000')
        self.assertEqual('{}'.format(d), '4000000000.40000000')
        self.assertEqual('{:e}'.format(d), '4.000000000400e+09')


run_test(__name__)