def test_adding_mass_to_mass(self):
m1 = quantity.Mass(1000., "g")
m2 = quantity.Mass(1., "kg")
m3 = m1 + m2
self.assertEqual(m3.value, 2000.)
self.assertEqual(m3.unit, "g")
self.assertFalse(id(m1) == id(m3))
self.assertFalse(id(m2) == id(m3))
def test_comparing_none_base_with_none_base_greater(self):
m1 = quantity.Mass(1000., 'dag')
m2 = quantity.Mass(1., 'kg')
self.assertFalse(m1 == m2)
self.assertFalse(m1 <= m2)
self.assertTrue(m1 >= m2)
self.assertTrue(m1 > m2)
self.assertFalse(m1 < m2)
self.assertTrue(m1 != m2)
def test_comparing_base_with_base_less(self):
m1 = quantity.Mass(1., 'g')
m2 = quantity.Mass(2., 'g')
self.assertFalse(m1 == m2)
self.assertTrue(m1 <= m2)
self.assertFalse(m1 >= m2)
self.assertFalse(m1 > m2)
self.assertTrue(m1 < m2)
self.assertTrue(m1 != m2)
def test_mass(self):
m = quantity.Mass(1.0, 'g')
self.assertEqual(m('Eg'), float('1e-18'))
self.assertEqual(m('Pg'), float('1e-15'))
self.assertEqual(m('Tg'), float('1e-12'))
self.assertEqual(m('Gg'), float('1e-9'))
self.assertEqual(m('Mg'), float('1e-6'))
self.assertEqual(m('kg'), float('1e-3'))
self.assertEqual(m('hg'), float('1e-2'))
self.assertEqual(m('dag'), float('0.1'))
self.assertEqual(m('g'), float('1.'))
self.assertEqual(m('dg'), float('10.'))
self.assertEqual(m('cg'), float('100.'))
self.assertEqual(m('mg'), float('1000.'))
self.assertEqual(m('μg'), float('1e6'))
self.assertAlmostEqual(m('ng'), float('1e9'), delta=1e-6)
self.assertEqual(m('pg'), float('1e12'))
self.assertAlmostEqual(m('fg'), float('1e15'), delta=1)
def test_mass_zero(self):
m = quantity.Mass(0, 'g')
self.assertEqual(m('Eg'), float('0'))
self.assertEqual(m('Pg'), float('0'))
self.assertEqual(m('Tg'), float('0'))
self.assertEqual(m('Gg'), float('0'))
self.assertEqual(m('Mg'), float('0'))
self.assertEqual(m('kg'), float('0'))
self.assertEqual(m('hg'), float('0'))
self.assertEqual(m('dag'), float('0'))
self.assertEqual(m('g'), float('0'))
self.assertEqual(m('dg'), float('0'))
self.assertEqual(m('cg'), float('0'))
self.assertEqual(m('mg'), float('0'))
self.assertEqual(m('μg'), float('0'))
self.assertEqual(m('ng'), float('0'))
self.assertEqual(m('pg'), float('0'))
self.assertEqual(m('fg'), float('0'))
self.assertEqual(m('ag'), float('0'))
def test_mass__233(self):
m = quantity.Mass(2.33, 'g')
self.assertAlmostEqual(m('Eg'), float('2.33e-18'), delta=1e-6)
self.assertAlmostEqual(m('Pg'), float('2.33e-15'), delta=1e-6)
self.assertEqual(m('Tg'), float('2.33e-12'))
self.assertEqual(m('Gg'), float('2.33e-9'))
self.assertEqual(m('Mg'), float('2.33e-6'))
self.assertEqual(m('kg'), float('2.33e-3'))
self.assertEqual(m('hg'), float('2.33e-2'))
self.assertEqual(m('dag'), float('2.33e-1'))
self.assertEqual(m('g'), float('2.33'))
self.assertEqual(m('dg'), float('23.3'))
self.assertEqual(m('cg'), float('233.'))
self.assertEqual(m('mg'), float('2330.'))
self.assertEqual(m('μg'), float('2.33e6'))
self.assertEqual(m('ng'), float('2.33e9'))
self.assertEqual(m('pg'), float('2.33e12'))
self.assertEqual(m('fg'), float('2.33e15'))
self.assertEqual(m('ag'), float('2.33e18'))
def test_force_from_m_a_233(self):
m = quantity.Mass(2.33, "kg")
a = quantity.Acceleration(1, 'm s-2')
f1 = m * a
self.assertEqual(f1('kg m s-2'), float('2.33'))
def test_force_from_m_a_zero(self):
m = quantity.Mass(0, "g")
a = quantity.Acceleration(0, 'm s-2')
f1 = m * a
self.assertIsInstance(f1, quantity.Force)
self.assertEqual(f1('kg m s-2'), float('0.'))
def test_mass_g_to_oz_lb_t_233(self):
m = quantity.Mass(2.33, 'g')
self.assertAlmostEqual(m('oz'), float('0.0821'), delta=1e-4)
self.assertAlmostEqual(m('lb'), float('0.00513'), delta=1e-4)
self.assertEqual(m('t'), float('2.33e-6'))
def test_mass_g_to_oz_lb_t(self):
m = quantity.Mass(1, 'g')
self.assertAlmostEqual(m('oz'), float('0.0352'), delta=1e-4)
self.assertAlmostEqual(m('lb'), float('0.0022'), delta=1e-4)
self.assertEqual(m('t'), float('1e-6'))
