/usr/lib/python2.7/test/decimaltestdata/copy.decTest is in libpython2.7-testsuite 2.7.15~rc1-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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-- copy.decTest -- quiet copy --
-- Copyright (c) IBM Corporation, 1981, 2008. 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 --
------------------------------------------------------------------------
version: 2.59
extended: 1
precision: 9
rounding: half_up
maxExponent: 999
minExponent: -999
-- Sanity check
cpyx001 copy +7.50 -> 7.50
-- Infinities
cpyx011 copy Infinity -> Infinity
cpyx012 copy -Infinity -> -Infinity
-- NaNs, 0 payload
cpyx021 copy NaN -> NaN
cpyx022 copy -NaN -> -NaN
cpyx023 copy sNaN -> sNaN
cpyx024 copy -sNaN -> -sNaN
-- NaNs, non-0 payload
cpyx031 copy NaN10 -> NaN10
cpyx032 copy -NaN10 -> -NaN10
cpyx033 copy sNaN10 -> sNaN10
cpyx034 copy -sNaN10 -> -sNaN10
cpyx035 copy NaN7 -> NaN7
cpyx036 copy -NaN7 -> -NaN7
cpyx037 copy sNaN101 -> sNaN101
cpyx038 copy -sNaN101 -> -sNaN101
-- finites
cpyx101 copy 7 -> 7
cpyx102 copy -7 -> -7
cpyx103 copy 75 -> 75
cpyx104 copy -75 -> -75
cpyx105 copy 7.50 -> 7.50
cpyx106 copy -7.50 -> -7.50
cpyx107 copy 7.500 -> 7.500
cpyx108 copy -7.500 -> -7.500
-- zeros
cpyx111 copy 0 -> 0
cpyx112 copy -0 -> -0
cpyx113 copy 0E+4 -> 0E+4
cpyx114 copy -0E+4 -> -0E+4
cpyx115 copy 0.0000 -> 0.0000
cpyx116 copy -0.0000 -> -0.0000
cpyx117 copy 0E-141 -> 0E-141
cpyx118 copy -0E-141 -> -0E-141
-- full coefficients, alternating bits
cpyx121 copy 268268268 -> 268268268
cpyx122 copy -268268268 -> -268268268
cpyx123 copy 134134134 -> 134134134
cpyx124 copy -134134134 -> -134134134
-- Nmax, Nmin, Ntiny
cpyx131 copy 9.99999999E+999 -> 9.99999999E+999
cpyx132 copy 1E-999 -> 1E-999
cpyx133 copy 1.00000000E-999 -> 1.00000000E-999
cpyx134 copy 1E-1007 -> 1E-1007
cpyx135 copy -1E-1007 -> -1E-1007
cpyx136 copy -1.00000000E-999 -> -1.00000000E-999
cpyx137 copy -1E-999 -> -1E-999
cpyx138 copy -9.99999999E+999 -> -9.99999999E+999
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