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# Tests the functions imported from math
try:
from math import *
except ImportError:
print("SKIP")
raise SystemExit
test_values = [-100.0, -1.23456, -1, -0.5, 0.0, 0.5, 1.23456, 100.0]
test_values_small = [
-10.0,
-1.23456,
-1,
-0.5,
0.0,
0.5,
1.23456,
10.0,
] # so we don't overflow 32-bit precision
unit_range_test_values = [-1.0, -0.75, -0.5, -0.25, 0.0, 0.25, 0.5, 0.75, 1.0]
functions = [
("sqrt", sqrt, test_values),
("exp", exp, test_values_small),
("log", log, test_values),
("cos", cos, test_values),
("sin", sin, test_values),
("tan", tan, test_values),
("acos", acos, unit_range_test_values),
("asin", asin, unit_range_test_values),
("atan", atan, test_values),
("ceil", ceil, test_values),
("fabs", fabs, test_values),
("floor", floor, test_values),
("trunc", trunc, test_values),
("radians", radians, test_values),
("degrees", degrees, test_values),
]
for function_name, function, test_vals in functions:
for value in test_vals:
try:
ans = "{:.5g}".format(function(value))
except ValueError as e:
ans = str(e)
print("{}({:.5g}) = {}".format(function_name, value, ans))
tuple_functions = [
("frexp", frexp, test_values),
("modf", modf, test_values),
]
for function_name, function, test_vals in tuple_functions:
for value in test_vals:
x, y = function(value)
print("{}({:.5g}) = ({:.5g}, {:.5g})".format(function_name, value, x, y))
binary_functions = [
(
"copysign",
copysign,
[(23.0, 42.0), (-23.0, 42.0), (23.0, -42.0), (-23.0, -42.0), (1.0, 0.0), (1.0, -0.0)],
),
("pow", pow, ((1.0, 0.0), (0.0, 1.0), (2.0, 0.5), (-3.0, 5.0), (-3.0, -4.0))),
("atan2", atan2, ((1.0, 0.0), (0.0, 1.0), (2.0, 0.5), (-3.0, 5.0), (-3.0, -4.0))),
("fmod", fmod, ((1.0, 1.0), (0.0, 1.0), (2.0, 0.5), (-3.0, 5.0), (-3.0, -4.0))),
("ldexp", ldexp, ((1.0, 0), (0.0, 1), (2.0, 2), (3.0, -2), (-3.0, -4))),
(
"log",
log,
(
(2.0, 2.0),
(3.0, 2.0),
(4.0, 5.0),
(0.0, 1.0),
(1.0, 0.0),
(-1.0, 1.0),
(1.0, -1.0),
(2.0, 1.0),
),
),
]
for function_name, function, test_vals in binary_functions:
for value1, value2 in test_vals:
try:
ans = "{:.5g}".format(function(value1, value2))
except (ValueError, ZeroDivisionError) as e:
ans = type(e)
print("{}({:.5g}, {:.5g}) = {}".format(function_name, value1, value2, ans))
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