diff options
Diffstat (limited to 'Lib/dos-8x3/test_mat.py')
| -rw-r--r-- | Lib/dos-8x3/test_mat.py | 195 |
1 files changed, 0 insertions, 195 deletions
diff --git a/Lib/dos-8x3/test_mat.py b/Lib/dos-8x3/test_mat.py deleted file mode 100644 index b7fde0a..0000000 --- a/Lib/dos-8x3/test_mat.py +++ /dev/null @@ -1,195 +0,0 @@ -# Python test set -- math module -# XXXX Should not do tests around zero only - -from test_support import * - -seps='1e-05' -eps = eval(seps) -print 'math module, testing with eps', seps -import math - -def testit(name, value, expected): - if abs(value-expected) > eps: - raise TestFailed, '%s returned %f, expected %f'%\ - (name, value, expected) - -print 'constants' -testit('pi', math.pi, 3.1415926) -testit('e', math.e, 2.7182818) - -print 'acos' -testit('acos(-1)', math.acos(-1), math.pi) -testit('acos(0)', math.acos(0), math.pi/2) -testit('acos(1)', math.acos(1), 0) - -print 'asin' -testit('asin(-1)', math.asin(-1), -math.pi/2) -testit('asin(0)', math.asin(0), 0) -testit('asin(1)', math.asin(1), math.pi/2) - -print 'atan' -testit('atan(-1)', math.atan(-1), -math.pi/4) -testit('atan(0)', math.atan(0), 0) -testit('atan(1)', math.atan(1), math.pi/4) - -print 'atan2' -testit('atan2(-1, 0)', math.atan2(-1, 0), -math.pi/2) -testit('atan2(-1, 1)', math.atan2(-1, 1), -math.pi/4) -testit('atan2(0, 1)', math.atan2(0, 1), 0) -testit('atan2(1, 1)', math.atan2(1, 1), math.pi/4) -testit('atan2(1, 0)', math.atan2(1, 0), math.pi/2) - -print 'ceil' -testit('ceil(0.5)', math.ceil(0.5), 1) -testit('ceil(1.0)', math.ceil(1.0), 1) -testit('ceil(1.5)', math.ceil(1.5), 2) -testit('ceil(-0.5)', math.ceil(-0.5), 0) -testit('ceil(-1.0)', math.ceil(-1.0), -1) -testit('ceil(-1.5)', math.ceil(-1.5), -1) - -print 'cos' -testit('cos(-pi/2)', math.cos(-math.pi/2), 0) -testit('cos(0)', math.cos(0), 1) -testit('cos(pi/2)', math.cos(math.pi/2), 0) -testit('cos(pi)', math.cos(math.pi), -1) - -print 'cosh' -testit('cosh(0)', math.cosh(0), 1) -testit('cosh(2)-2*cosh(1)**2', math.cosh(2)-2*math.cosh(1)**2, -1) # Thanks to Lambert - -print 'exp' -testit('exp(-1)', math.exp(-1), 1/math.e) -testit('exp(0)', math.exp(0), 1) -testit('exp(1)', math.exp(1), math.e) - -print 'fabs' -testit('fabs(-1)', math.fabs(-1), 1) -testit('fabs(0)', math.fabs(0), 0) -testit('fabs(1)', math.fabs(1), 1) - -print 'floor' -testit('floor(0.5)', math.floor(0.5), 0) -testit('floor(1.0)', math.floor(1.0), 1) -testit('floor(1.5)', math.floor(1.5), 1) -testit('floor(-0.5)', math.floor(-0.5), -1) -testit('floor(-1.0)', math.floor(-1.0), -1) -testit('floor(-1.5)', math.floor(-1.5), -2) - -print 'fmod' -testit('fmod(10,1)', math.fmod(10,1), 0) -testit('fmod(10,0.5)', math.fmod(10,0.5), 0) -testit('fmod(10,1.5)', math.fmod(10,1.5), 1) -testit('fmod(-10,1)', math.fmod(-10,1), 0) -testit('fmod(-10,0.5)', math.fmod(-10,0.5), 0) -testit('fmod(-10,1.5)', math.fmod(-10,1.5), -1) - -print 'frexp' -def testfrexp(name, (mant, exp), (emant, eexp)): - if abs(mant-emant) > eps or exp <> eexp: - raise TestFailed, '%s returned %s, expected %s'%\ - (name, `mant, exp`, `emant,eexp`) - -testfrexp('frexp(-1)', math.frexp(-1), (-0.5, 1)) -testfrexp('frexp(0)', math.frexp(0), (0, 0)) -testfrexp('frexp(1)', math.frexp(1), (0.5, 1)) -testfrexp('frexp(2)', math.frexp(2), (0.5, 2)) - -print 'hypot' -testit('hypot(0,0)', math.hypot(0,0), 0) -testit('hypot(3,4)', math.hypot(3,4), 5) - -print 'ldexp' -testit('ldexp(0,1)', math.ldexp(0,1), 0) -testit('ldexp(1,1)', math.ldexp(1,1), 2) -testit('ldexp(1,-1)', math.ldexp(1,-1), 0.5) -testit('ldexp(-1,1)', math.ldexp(-1,1), -2) - -print 'log' -testit('log(1/e)', math.log(1/math.e), -1) -testit('log(1)', math.log(1), 0) -testit('log(e)', math.log(math.e), 1) - -print 'log10' -testit('log10(0.1)', math.log10(0.1), -1) -testit('log10(1)', math.log10(1), 0) -testit('log10(10)', math.log10(10), 1) - -print 'modf' -def testmodf(name, (v1, v2), (e1, e2)): - if abs(v1-e1) > eps or abs(v2-e2): - raise TestFailed, '%s returned %s, expected %s'%\ - (name, `v1,v2`, `e1,e2`) - -testmodf('modf(1.5)', math.modf(1.5), (0.5, 1.0)) -testmodf('modf(-1.5)', math.modf(-1.5), (-0.5, -1.0)) - -print 'pow' -testit('pow(0,1)', math.pow(0,1), 0) -testit('pow(1,0)', math.pow(1,0), 1) -testit('pow(2,1)', math.pow(2,1), 2) -testit('pow(2,-1)', math.pow(2,-1), 0.5) - -print 'sin' -testit('sin(0)', math.sin(0), 0) -testit('sin(pi/2)', math.sin(math.pi/2), 1) -testit('sin(-pi/2)', math.sin(-math.pi/2), -1) - -print 'sinh' -testit('sinh(0)', math.sinh(0), 0) -testit('sinh(1)**2-cosh(1)**2', math.sinh(1)**2-math.cosh(1)**2, -1) -testit('sinh(1)+sinh(-1)', math.sinh(1)+math.sinh(-1), 0) - -print 'sqrt' -testit('sqrt(0)', math.sqrt(0), 0) -testit('sqrt(1)', math.sqrt(1), 1) -testit('sqrt(4)', math.sqrt(4), 2) - -print 'tan' -testit('tan(0)', math.tan(0), 0) -testit('tan(pi/4)', math.tan(math.pi/4), 1) -testit('tan(-pi/4)', math.tan(-math.pi/4), -1) - -print 'tanh' -testit('tanh(0)', math.tanh(0), 0) -testit('tanh(1)+tanh(-1)', math.tanh(1)+math.tanh(-1), 0) - -# RED_FLAG 16-Oct-2000 Tim -# While 2.0 is more consistent about exceptions than previous releases, it -# still fails this part of the test on some platforms. For now, we only -# *run* test_exceptions() in verbose mode, so that this isn't normally -# tested. - -def test_exceptions(): - print 'exceptions' - try: - x = math.exp(-1000000000) - except: - # mathmodule.c is failing to weed out underflows from libm, or - # we've got an fp format with huge dynamic range - raise TestFailed("underflowing exp() should not have raised " - "an exception") - if x != 0: - raise TestFailed("underflowing exp() should have returned 0") - - # If this fails, probably using a strict IEEE-754 conforming libm, and x - # is +Inf afterwards. But Python wants overflows detected by default. - try: - x = math.exp(1000000000) - except OverflowError: - pass - else: - raise TestFailed("overflowing exp() didn't trigger OverflowError") - - # If this fails, it could be a puzzle. One odd possibility is that - # mathmodule.c's CHECK() macro is getting confused while comparing - # Inf (HUGE_VAL) to a NaN, and artificially setting errno to ERANGE - # as a result (and so raising OverflowError instead). - try: - x = math.sqrt(-1.0) - except ValueError: - pass - else: - raise TestFailed("sqrt(-1) didn't raise ValueError") - -if verbose: - test_exceptions() |