micropython/tests/float/cmath_fun.py

66 wiersze
1.8 KiB
Python

# test the functions imported from cmath
try:
from cmath import *
except ImportError:
print("SKIP")
raise SystemExit
# make sure these constants exist in cmath
print("%.5g" % e)
print("%.5g" % pi)
test_values_non_zero = []
base_values = (0.0, 0.5, 1.2345, 10.0)
for r in base_values:
for i in base_values:
if r != 0.0 or i != 0.0:
test_values_non_zero.append(complex(r, i))
if r != 0.0:
test_values_non_zero.append(complex(-r, i))
if i != 0.0:
test_values_non_zero.append(complex(r, -i))
if r != 0.0 and i != 0.0:
test_values_non_zero.append(complex(-r, -i))
test_values = [complex(0.0, 0.0)] + test_values_non_zero
print(test_values)
functions = [
("phase", phase, test_values),
("polar", polar, test_values),
(
"rect",
rect,
((0, 0), (0, 1), (0, -1), (1, 0), (-1, 0), (1, 1), (-1, 1), (1, -1), (123.0, -456.0)),
),
("exp", exp, test_values),
("log", log, test_values_non_zero),
("sqrt", sqrt, test_values),
("cos", cos, test_values),
("sin", sin, test_values),
]
for f_name, f, test_vals in functions:
print(f_name)
for val in test_vals:
if type(val) == tuple:
ret = f(*val)
else:
ret = f(val)
if type(ret) == float:
print("%.5g" % ret)
elif type(ret) == tuple:
print("%.5g %.5g" % ret)
else:
# some test (eg cmath.sqrt(-0.5)) disagree with CPython with tiny real part
real = ret.real
if abs(real) < 1e-6:
real = 0.0
print("complex(%.5g, %.5g)" % (real, ret.imag))
# test invalid type passed to cmath function
try:
log([])
except TypeError:
print("TypeError")