Module test_float

Classes

Test_float
Unit tests for the functions of the 'float' module.

Functions

make_dict_by_id(elements)
Convert the list into a dictionary of pointer:value pairs.

winnow_dist_to_list_by_id(dict, exclude)
Generate a list of values in dict excluding the values given.

Variables

FLOAT_EPSILON = 4.94065645841e-324

NEG_FLOAT_EPSILON = -4.94065645841e-324

FLOAT_NORMAL = 1000000.0

NEG_FLOAT_NORMAL = -1000000.0

ZERO = 0.0

NEG_ZERO = -0.0

CLASS_NEG_DENORMAL = 32

CLASS_NEG_INF = 2

CLASS_NEG_NORMAL = 8

CLASS_NEG_ZERO = 512

CLASS_POS_DENORMAL = 16

CLASS_POS_INF = 1

CLASS_POS_NORMAL = 4

CLASS_POS_ZERO = 256

CLASS_QUIET_NAN = 64

CLASS_SIGNAL_NAN = 128

EXPONENT_ALL_ONES_BYTE_0 = 240

EXPONENT_ALL_ONES_BYTE_1 = 127

EXPONENT_NIBBLE_MASK = 240

EXPONENT_SIGN_MASK = 127

INF_BYTES = [0, 0, 0, 0, 0, 0, 240, 127]

MANTISSA_NIBBLE_MASK = 15

NAN_BYTES = [0, 0, 0, 0, 0, 0, 248, 127]

NegEpsilonDenorm = -4.94065645841e-324

NegEpsilonNorm = -2.22507385851e-308

NegInf = -inf

NegMin = -1.79769313486e+308

NegNaN = nan

NegNaN_A = nan

NegNaN_B = nan

NegNaN_C = nan

NegZero = -0.0

PosEpsilonDenorm = 4.94065645841e-324

PosEpsilonNorm = 2.22507385851e-308

PosInf = inf

PosMax = 1.79769313486e+308

PosNaN = nan

PosNaN_A = nan

PosNaN_B = nan

PosNaN_C = nan

PosZero = 0.0

SIGNBIT = 128

__package__ = 'test_suite.unit_tests'

nan = nan

neg_inf = -inf

pos_inf = inf

Imports: TestCase, copy, areUnordered, bitpatternToFloat, bitpatternToInt, copySign, floatAsByteArray, floatToBinaryString, getExponentBytes, getFloatClass, getMantissaBytes, getSignBit, isDenormalised, isExpAllOnes, isExpAllZeros, isFinite, isInf, isMantissaAllZeros, isNaN, isNegInf, isNegative, isPosInf, isPositive, isZero, is_float, pack, packBytesAsPyFloat, sys, unpack