from amuse.support.testing import amusetest

import numpy
import sys


from amuse.support.exceptions import AmuseException
from amuse.units.quantities import *
from amuse.units import si
from amuse.units import units
from amuse.units import nbody_system

from amuse import datamodel
from amuse.units import optparse


class TestQuantities(amusetest.TestCase):

    def test1(self):
        x = optparse.OptionParser()
        x.add_option('-m', unit=units.MSun, dest="mass", type=float)
        options, args = x.parse_args(['-m', '2.0'])
        self.assertAlmostRelativeEquals(options.mass, 2.0 | units.MSun)

    def test2(self):
        x = optparse.OptionParser()
        x.add_option('-m', unit=units.MSun, default=1 | units.MSun, dest="mass", type=float)
        options, args = x.parse_args(['bla'])
        self.assertAlmostRelativeEquals(options.mass, 1.0 | units.MSun)
        self.assertEqual(args[0], 'bla')

    def test3(self):
        x = optparse.OptionParser()
        x.add_option('-m', unit=units.MSun, default='1.5', dest="mass", type=float)
        options, args = x.parse_args(['bla'])
        self.assertAlmostRelativeEquals(options.mass, 1.5 | units.MSun)
        self.assertEqual(args[0], 'bla')

    def test4(self):
        x = optparse.OptionParser()
        x.add_option('-m', unit=units.MSun, help="(unit: %unit)", default='1.5', dest="mass", type=float)
        helpstr = x.format_help()

        print(helpstr)
        self.assertTrue('(unit: MSun)' in helpstr)

        x = optparse.OptionParser()
        x.add_option('-m', unit=nbody_system.mass, help="(unit: %unit)", default='1.5', dest="mass", type=float)
        helpstr = x.format_help()

        print(helpstr)
        self.assertTrue('(unit: mass)' in helpstr)

    def test5(self):
        x = optparse.OptionParser()
        x.add_option('-m', unit=units.MSun, default=1.5, dest="mass", type=float)
        options, args = x.parse_args(['bla'])
        self.assertAlmostRelativeEquals(options.mass, 1.5 | units.MSun)
        self.assertEqual(args[0], 'bla')

    def test6(self):
        x = optparse.OptionParser()
        x.add_option('-m', unit=units.MSun, help="(default: %default, unit: %unit)", default='1.5', dest="mass", type=float)
        helpstr = x.format_help()

        print(helpstr)
        self.assertTrue('unit: MSun)' in helpstr)
        self.assertTrue('(default: 1' in helpstr)
