def test_n(self):
self.assertEquals(en(pi), '3.14')
self.assertEquals(en(pi, n=6), '3.14159')
self.assertEquals(en(pi, n=5), '3.1416')
self.assertEquals(en(pi**(-10), n=4), '1.068e-5')
self.assertEquals(en(pi**(-10), n=2), '1.1e-5')
self.assertRaises(TypeError, en, pi, n=0.5)
self.assertRaises(ValueError, en, pi, n=0)
def wrap(*args, **kwargs):
t0 = time()
R = func(*args, **kwargs)
wrap.t = time() - t0
print('{} elapsed {} seconds'.format(func.__name__, en(wrap.t)))
return R
def test_zero(self):
self.assertEqual(en(0), '0')
self.assertEqual(en(0, zero_sign=''), '')
self.assertEqual(en(0, zero_sign='###'), '###')
def test_nan(self):
self.assertEquals(en('foo'), 'foo')
self.assertEquals(en('foo', nan_sign='###'), '###')
def test_exponent_mark(self):
self.assertEquals(en(7**7, n=2), '8.2e+5')
self.assertEquals(en(7**7, n=2, exponent_mark='D'), '8.2D+5')
def test_leading_nonzeros(self):
self.assertEquals(en(2017), '2017')
self.assertEquals(en(2017, max_leading_nonzeros=2), '2.02e+3')
self.assertEquals(en(12345), '1.23e+4')
self.assertEquals(en(12345, max_leading_nonzeros=6), '12345')
def test_leading_zeros(self):
self.assertEquals(en(-0.05128117), '-0.0513')
self.assertEquals(en(-0.5128117, max_leading_zeros=0), '-5.13e-1')
self.assertEquals(en(-0.005128117), '-5.13e-3')
self.assertEquals(en(-0.0005128117, max_leading_zeros=5), '-0.000513')
def test_small(self):
self.assertEquals(en(-7.1**-7), '-1.10e-6')
def test_big(self):
self.assertEquals(en(7.1**7), '9.10e+5')
def test_integers(self):
self.assertEquals(en(12), '12')
self.assertEquals(en(1989), '1989')
self.assertEquals(en(32789), '3.28e+4')
self.assertEquals(en(-333), '-333')
def test_moderate_small(self):
self.assertEquals(en(0.1), '0.100')
self.assertEquals(en(-0.1234), '-0.123')
self.assertEquals(en(+17.19), '17.2')
self.assertEquals(en(21.9921234), '22.0')
self.assertEquals(en(995.78901), '996')
