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cpython/Lib/test/decimaltestdata/reduce.decTest

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Merged the decimal-branch (revisions 54886 to 58140). Decimal is now fully updated to the latests Decimal Specification (v1.66) and the latests test cases (v2.56). Thanks to Mark Dickinson for all his help during this process.
2007-09-13 15:13:15 -03:00
------------------------------------------------------------------------
-- reduce.decTest -- remove trailing zeros --
-- Copyright (c) IBM Corporation, 2003, 2007. All rights reserved. --
------------------------------------------------------------------------
-- Please see the document "General Decimal Arithmetic Testcases" --
-- at http://www2.hursley.ibm.com/decimal for the description of --
-- these testcases. --
-- --
-- These testcases are experimental ('beta' versions), and they --
-- may contain errors. They are offered on an as-is basis. In --
-- particular, achieving the same results as the tests here is not --
-- a guarantee that an implementation complies with any Standard --
-- or specification. The tests are not exhaustive. --
-- --
-- Please send comments, suggestions, and corrections to the author: --
-- Mike Cowlishaw, IBM Fellow --
-- IBM UK, PO Box 31, Birmingham Road, Warwick CV34 5JL, UK --
-- mfc@uk.ibm.com --
------------------------------------------------------------------------
-- [This used to be called normalize.]
version: 2.56
extended: 1
precision: 9
rounding: half_up
maxExponent: 999
minexponent: -999
redx001 reduce '1' -> '1'
redx002 reduce '-1' -> '-1'
redx003 reduce '1.00' -> '1'
redx004 reduce '-1.00' -> '-1'
redx005 reduce '0' -> '0'
redx006 reduce '0.00' -> '0'
redx007 reduce '00.0' -> '0'
redx008 reduce '00.00' -> '0'
redx009 reduce '00' -> '0'
redx010 reduce '0E+1' -> '0'
redx011 reduce '0E+5' -> '0'
redx012 reduce '-2' -> '-2'
redx013 reduce '2' -> '2'
redx014 reduce '-2.00' -> '-2'
redx015 reduce '2.00' -> '2'
redx016 reduce '-0' -> '-0'
redx017 reduce '-0.00' -> '-0'
redx018 reduce '-00.0' -> '-0'
redx019 reduce '-00.00' -> '-0'
redx020 reduce '-00' -> '-0'
redx021 reduce '-0E+5' -> '-0'
redx022 reduce '-0E+1' -> '-0'
redx030 reduce '+0.1' -> '0.1'
redx031 reduce '-0.1' -> '-0.1'
redx032 reduce '+0.01' -> '0.01'
redx033 reduce '-0.01' -> '-0.01'
redx034 reduce '+0.001' -> '0.001'
redx035 reduce '-0.001' -> '-0.001'
redx036 reduce '+0.000001' -> '0.000001'
redx037 reduce '-0.000001' -> '-0.000001'
redx038 reduce '+0.000000000001' -> '1E-12'
redx039 reduce '-0.000000000001' -> '-1E-12'
redx041 reduce 1.1 -> 1.1
redx042 reduce 1.10 -> 1.1
redx043 reduce 1.100 -> 1.1
redx044 reduce 1.110 -> 1.11
redx045 reduce -1.1 -> -1.1
redx046 reduce -1.10 -> -1.1
redx047 reduce -1.100 -> -1.1
redx048 reduce -1.110 -> -1.11
redx049 reduce 9.9 -> 9.9
redx050 reduce 9.90 -> 9.9
redx051 reduce 9.900 -> 9.9
redx052 reduce 9.990 -> 9.99
redx053 reduce -9.9 -> -9.9
redx054 reduce -9.90 -> -9.9
redx055 reduce -9.900 -> -9.9
redx056 reduce -9.990 -> -9.99
-- some trailing fractional zeros with zeros in units
redx060 reduce 10.0 -> 1E+1
redx061 reduce 10.00 -> 1E+1
redx062 reduce 100.0 -> 1E+2
redx063 reduce 100.00 -> 1E+2
redx064 reduce 1.1000E+3 -> 1.1E+3
redx065 reduce 1.10000E+3 -> 1.1E+3
redx066 reduce -10.0 -> -1E+1
redx067 reduce -10.00 -> -1E+1
redx068 reduce -100.0 -> -1E+2
redx069 reduce -100.00 -> -1E+2
redx070 reduce -1.1000E+3 -> -1.1E+3
redx071 reduce -1.10000E+3 -> -1.1E+3
-- some insignificant trailing zeros with positive exponent
redx080 reduce 10E+1 -> 1E+2
redx081 reduce 100E+1 -> 1E+3
redx082 reduce 1.0E+2 -> 1E+2
redx083 reduce 1.0E+3 -> 1E+3
redx084 reduce 1.1E+3 -> 1.1E+3
redx085 reduce 1.00E+3 -> 1E+3
redx086 reduce 1.10E+3 -> 1.1E+3
redx087 reduce -10E+1 -> -1E+2
redx088 reduce -100E+1 -> -1E+3
redx089 reduce -1.0E+2 -> -1E+2
redx090 reduce -1.0E+3 -> -1E+3
redx091 reduce -1.1E+3 -> -1.1E+3
redx092 reduce -1.00E+3 -> -1E+3
redx093 reduce -1.10E+3 -> -1.1E+3
-- some significant trailing zeros, were we to be trimming
redx100 reduce 11 -> 11
redx101 reduce 10 -> 1E+1
redx102 reduce 10. -> 1E+1
redx103 reduce 1.1E+1 -> 11
redx104 reduce 1.0E+1 -> 1E+1
redx105 reduce 1.10E+2 -> 1.1E+2
redx106 reduce 1.00E+2 -> 1E+2
redx107 reduce 1.100E+3 -> 1.1E+3
redx108 reduce 1.000E+3 -> 1E+3
redx109 reduce 1.000000E+6 -> 1E+6
redx110 reduce -11 -> -11
redx111 reduce -10 -> -1E+1
redx112 reduce -10. -> -1E+1
redx113 reduce -1.1E+1 -> -11
redx114 reduce -1.0E+1 -> -1E+1
redx115 reduce -1.10E+2 -> -1.1E+2
redx116 reduce -1.00E+2 -> -1E+2
redx117 reduce -1.100E+3 -> -1.1E+3
redx118 reduce -1.000E+3 -> -1E+3
redx119 reduce -1.00000E+5 -> -1E+5
redx120 reduce -1.000000E+6 -> -1E+6
redx121 reduce -10.00000E+6 -> -1E+7
redx122 reduce -100.0000E+6 -> -1E+8
redx123 reduce -1000.000E+6 -> -1E+9
redx124 reduce -10000.00E+6 -> -1E+10
redx125 reduce -100000.0E+6 -> -1E+11
redx126 reduce -1000000.E+6 -> -1E+12
-- examples from decArith
redx140 reduce '2.1' -> '2.1'
redx141 reduce '-2.0' -> '-2'
redx142 reduce '1.200' -> '1.2'
redx143 reduce '-120' -> '-1.2E+2'
redx144 reduce '120.00' -> '1.2E+2'
redx145 reduce '0.00' -> '0'
-- overflow tests
maxexponent: 999999999
minexponent: -999999999
precision: 3
redx160 reduce 9.999E+999999999 -> Infinity Inexact Overflow Rounded
redx161 reduce -9.999E+999999999 -> -Infinity Inexact Overflow Rounded
-- subnormals and underflow
precision: 3
maxexponent: 999
minexponent: -999
redx210 reduce 1.00E-999 -> 1E-999
redx211 reduce 0.1E-999 -> 1E-1000 Subnormal
redx212 reduce 0.10E-999 -> 1E-1000 Subnormal
redx213 reduce 0.100E-999 -> 1E-1000 Subnormal Rounded
redx214 reduce 0.01E-999 -> 1E-1001 Subnormal
-- next is rounded to Emin
redx215 reduce 0.999E-999 -> 1E-999 Inexact Rounded Subnormal Underflow
redx216 reduce 0.099E-999 -> 1E-1000 Inexact Rounded Subnormal Underflow
redx217 reduce 0.009E-999 -> 1E-1001 Inexact Rounded Subnormal Underflow
redx218 reduce 0.001E-999 -> 0 Inexact Rounded Subnormal Underflow Clamped
redx219 reduce 0.0009E-999 -> 0 Inexact Rounded Subnormal Underflow Clamped
redx220 reduce 0.0001E-999 -> 0 Inexact Rounded Subnormal Underflow Clamped
redx230 reduce -1.00E-999 -> -1E-999
redx231 reduce -0.1E-999 -> -1E-1000 Subnormal
redx232 reduce -0.10E-999 -> -1E-1000 Subnormal
redx233 reduce -0.100E-999 -> -1E-1000 Subnormal Rounded
redx234 reduce -0.01E-999 -> -1E-1001 Subnormal
-- next is rounded to Emin
redx235 reduce -0.999E-999 -> -1E-999 Inexact Rounded Subnormal Underflow
redx236 reduce -0.099E-999 -> -1E-1000 Inexact Rounded Subnormal Underflow
redx237 reduce -0.009E-999 -> -1E-1001 Inexact Rounded Subnormal Underflow
redx238 reduce -0.001E-999 -> -0 Inexact Rounded Subnormal Underflow Clamped
redx239 reduce -0.0009E-999 -> -0 Inexact Rounded Subnormal Underflow Clamped
redx240 reduce -0.0001E-999 -> -0 Inexact Rounded Subnormal Underflow Clamped
-- more reshaping
precision: 9
redx260 reduce '56260E-10' -> '0.000005626'
redx261 reduce '56260E-5' -> '0.5626'
redx262 reduce '56260E-2' -> '562.6'
redx263 reduce '56260E-1' -> '5626'
redx265 reduce '56260E-0' -> '5.626E+4'
redx266 reduce '56260E+0' -> '5.626E+4'
redx267 reduce '56260E+1' -> '5.626E+5'
redx268 reduce '56260E+2' -> '5.626E+6'
redx269 reduce '56260E+3' -> '5.626E+7'
redx270 reduce '56260E+4' -> '5.626E+8'
redx271 reduce '56260E+5' -> '5.626E+9'
redx272 reduce '56260E+6' -> '5.626E+10'
redx280 reduce '-56260E-10' -> '-0.000005626'
redx281 reduce '-56260E-5' -> '-0.5626'
redx282 reduce '-56260E-2' -> '-562.6'
redx283 reduce '-56260E-1' -> '-5626'
redx285 reduce '-56260E-0' -> '-5.626E+4'
redx286 reduce '-56260E+0' -> '-5.626E+4'
redx287 reduce '-56260E+1' -> '-5.626E+5'
redx288 reduce '-56260E+2' -> '-5.626E+6'
redx289 reduce '-56260E+3' -> '-5.626E+7'
redx290 reduce '-56260E+4' -> '-5.626E+8'
redx291 reduce '-56260E+5' -> '-5.626E+9'
redx292 reduce '-56260E+6' -> '-5.626E+10'
-- FL test
precision: 40
redx295 reduce 9892345673.0123456780000000000 -> 9892345673.012345678
-- specials
redx820 reduce 'Inf' -> 'Infinity'
redx821 reduce '-Inf' -> '-Infinity'
redx822 reduce NaN -> NaN
redx823 reduce sNaN -> NaN Invalid_operation
redx824 reduce NaN101 -> NaN101
redx825 reduce sNaN010 -> NaN10 Invalid_operation
redx827 reduce -NaN -> -NaN
redx828 reduce -sNaN -> -NaN Invalid_operation
redx829 reduce -NaN101 -> -NaN101
redx830 reduce -sNaN010 -> -NaN10 Invalid_operation
-- payload decapitate
precision: 5
redx62100 reduce sNaN1234567890 -> NaN67890 Invalid_operation
-- Null test
redx900 reduce # -> NaN Invalid_operation