def test_rounding(self):
formatter = fmt.EngFormatter(accuracy=3, use_eng_prefix=True)
in_out = [(5.55555, ' 5.556'),
(55.5555, ' 55.556'),
(555.555, ' 555.555'),
(5555.55, ' 5.556k'),
(55555.5, ' 55.556k'),
(555555, ' 555.555k')]
self.compare_all(formatter, in_out)
formatter = fmt.EngFormatter(accuracy=1, use_eng_prefix=True)
in_out = [(5.55555, ' 5.6'),
(55.5555, ' 55.6'),
(555.555, ' 555.6'),
(5555.55, ' 5.6k'),
(55555.5, ' 55.6k'),
(555555, ' 555.6k')]
self.compare_all(formatter, in_out)
formatter = fmt.EngFormatter(accuracy=0, use_eng_prefix=True)
in_out = [(5.55555, ' 6'),
(55.5555, ' 56'),
(555.555, ' 556'),
(5555.55, ' 6k'),
(55555.5, ' 56k'),
(555555, ' 556k')]
self.compare_all(formatter, in_out)
formatter = fmt.EngFormatter(accuracy=3, use_eng_prefix=True)
result = formatter(0)
self.assertEqual(result, u' 0.000')
def test_exponents_without_eng_prefix(self):
formatter = fmt.EngFormatter(accuracy=4, use_eng_prefix=False)
f = np.pi
in_out = [
(f * 10**-24, " 3.1416E-24"), (f * 10**-23, " 31.4159E-24"),
(f * 10**-22, " 314.1593E-24"), (f * 10**-21, " 3.1416E-21"),
(f * 10**-20, " 31.4159E-21"), (f * 10**-19, " 314.1593E-21"),
(f * 10**-18, " 3.1416E-18"), (f * 10**-17, " 31.4159E-18"),
(f * 10**-16, " 314.1593E-18"), (f * 10**-15, " 3.1416E-15"),
(f * 10**-14, " 31.4159E-15"), (f * 10**-13, " 314.1593E-15"),
(f * 10**-12, " 3.1416E-12"), (f * 10**-11, " 31.4159E-12"),
(f * 10**-10, " 314.1593E-12"), (f * 10**-9, " 3.1416E-09"),
(f * 10**-8, " 31.4159E-09"), (f * 10**-7, " 314.1593E-09"),
(f * 10**-6, " 3.1416E-06"), (f * 10**-5, " 31.4159E-06"),
(f * 10**-4, " 314.1593E-06"), (f * 10**-3, " 3.1416E-03"),
(f * 10**-2, " 31.4159E-03"), (f * 10**-1, " 314.1593E-03"),
(f * 10**0, " 3.1416E+00"), (f * 10**1, " 31.4159E+00"),
(f * 10**2, " 314.1593E+00"), (f * 10**3, " 3.1416E+03"),
(f * 10**4, " 31.4159E+03"), (f * 10**5, " 314.1593E+03"),
(f * 10**6, " 3.1416E+06"), (f * 10**7, " 31.4159E+06"),
(f * 10**8, " 314.1593E+06"), (f * 10**9, " 3.1416E+09"),
(f * 10**10, " 31.4159E+09"), (f * 10**11, " 314.1593E+09"),
(f * 10**12, " 3.1416E+12"), (f * 10**13, " 31.4159E+12"),
(f * 10**14, " 314.1593E+12"), (f * 10**15, " 3.1416E+15"),
(f * 10**16, " 31.4159E+15"), (f * 10**17, " 314.1593E+15"),
(f * 10**18, " 3.1416E+18"), (f * 10**19, " 31.4159E+18"),
(f * 10**20, " 314.1593E+18"), (f * 10**21, " 3.1416E+21"),
(f * 10**22, " 31.4159E+21"), (f * 10**23, " 314.1593E+21"),
(f * 10**24, " 3.1416E+24"), (f * 10**25, " 31.4159E+24"),
(f * 10**26, " 314.1593E+24")
]
self.compare_all(formatter, in_out)
def test_exponents_with_eng_prefix(self):
formatter = fmt.EngFormatter(accuracy=3, use_eng_prefix=True)
f = np.sqrt(2)
in_out = [(f * 10**-24, " 1.414y"), (f * 10**-23, " 14.142y"),
(f * 10**-22, " 141.421y"), (f * 10**-21, " 1.414z"),
(f * 10**-20, " 14.142z"), (f * 10**-19, " 141.421z"),
(f * 10**-18, " 1.414a"), (f * 10**-17, " 14.142a"),
(f * 10**-16, " 141.421a"), (f * 10**-15, " 1.414f"),
(f * 10**-14, " 14.142f"), (f * 10**-13, " 141.421f"),
(f * 10**-12, " 1.414p"), (f * 10**-11, " 14.142p"),
(f * 10**-10, " 141.421p"), (f * 10**-9, " 1.414n"),
(f * 10**-8, " 14.142n"), (f * 10**-7, " 141.421n"),
(f * 10**-6, " 1.414u"), (f * 10**-5, " 14.142u"),
(f * 10**-4, " 141.421u"), (f * 10**-3, " 1.414m"),
(f * 10**-2, " 14.142m"), (f * 10**-1, " 141.421m"),
(f * 10**0, " 1.414"), (f * 10**1, " 14.142"),
(f * 10**2, " 141.421"), (f * 10**3, " 1.414k"),
(f * 10**4, " 14.142k"), (f * 10**5, " 141.421k"),
(f * 10**6, " 1.414M"), (f * 10**7, " 14.142M"),
(f * 10**8, " 141.421M"), (f * 10**9, " 1.414G"),
(f * 10**10, " 14.142G"), (f * 10**11, " 141.421G"),
(f * 10**12, " 1.414T"), (f * 10**13, " 14.142T"),
(f * 10**14, " 141.421T"), (f * 10**15, " 1.414P"),
(f * 10**16, " 14.142P"), (f * 10**17, " 141.421P"),
(f * 10**18, " 1.414E"), (f * 10**19, " 14.142E"),
(f * 10**20, " 141.421E"), (f * 10**21, " 1.414Z"),
(f * 10**22, " 14.142Z"), (f * 10**23, " 141.421Z"),
(f * 10**24, " 1.414Y"), (f * 10**25, " 14.142Y"),
(f * 10**26, " 141.421Y")]
self.compare_all(formatter, in_out)
