circuitpython/tests/float/float1.py
stijn 861670ba2a py: Implement mp_format_float for doubles and use where appropriate
This allows using (almost) the same code for printing floats everywhere,
removes the dependency on sprintf and uses just snprintf and
applies an msvc-specific fix for snprintf in a single place so
nan/inf are now printed correctly.
2015-05-17 21:47:11 +01:00

92 lines
1.6 KiB
Python

# test basic float capabilities
# literals
print(.12)
print(1.)
print(1.2)
# float construction
print(float(1.2))
print(float("1.2"))
print(float("+1"))
print(float("1e1"))
print(float("1e+1"))
print(float("1e-1"))
print(float("inf"))
print(float("-inf"))
print(float("INF"))
print(float("infinity"))
print(float("INFINITY"))
print(float("nan"))
print(float("NaN"))
try:
float("1e+")
except ValueError:
print("ValueError")
try:
float("1z")
except ValueError:
print("ValueError")
# unary operators
print(bool(0.0))
print(bool(1.2))
print(+(1.2))
print(-(1.2))
# division of integers
x = 1 / 2
print(x)
# /= operator
a = 1
a /= 2
print(a)
# floor division
print(1.0 // 2)
print(2.0 // 2)
# comparison
print(1.2 <= 3.4)
print(1.2 <= -3.4)
print(1.2 >= 3.4)
print(1.2 >= -3.4)
try:
1.0 / 0
except ZeroDivisionError:
print("ZeroDivisionError")
try:
1.0 // 0
except ZeroDivisionError:
print("ZeroDivisionError")
try:
1.2 % 0
except ZeroDivisionError:
print("ZeroDivisionError")
# unsupported unary ops
try:
~1.2
except TypeError:
print("TypeError")
try:
1.2 in 3.4
except TypeError:
print("TypeError")
# can't convert list to float
try:
float([])
except TypeError:
print("TypeError")
# test constant float with more than 255 chars
x = 1.84728699436059052516398251149631771898472869943605905251639825114963177189847286994360590525163982511496317718984728699436059052516398251149631771898472869943605905251639825114963177189847286994360590525163982511496317718984728699436059052516398251149631771898472869943605905251639825114963177189
print("%.5f" % x)