/test/lib/numeric/number/test_number05.e

 1-- This file is part of SmartEiffel The GNU Eiffel Compiler Tools and Libraries.
 2-- See the Copyright notice at the end of this file.
 3--
 4class TEST_NUMBER05
 5   -- tests on "is_negative"
 6
 7insert
 8   EIFFELTEST_TOOLS
 9   PLATFORM
10   NUMBER_TOOLS
11
12create {}
13   make
14
15feature {ANY}
16   make
17      local
18         n: NUMBER
19      do
20         n := from_integer(0)
21         assert(not n.is_negative)
22         n := from_integer(1)
23         assert(not n.is_negative)
24         n := from_integer(-1)
25         assert(n.is_negative)
26         n := from_integer(Maximum_integer)
27         n := n @+ 1000
28         assert(not n.is_negative)
29         n := from_integer(Minimum_integer)
30         n := n @- 1000
31         assert(n.is_negative)
32         n := from_string("3/5")
33         assert(not n.is_negative)
34         n := from_string("-3/10")
35         assert(n.is_negative)
36      end
37
38
39
40end -- class TEST_NUMBER05
41--
42-- ------------------------------------------------------------------------------------------------------------------------------
43-- Copyright notice below. Please read.
44--
45-- SmartEiffel is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License,
46-- as published by the Free Software Foundation; either version 2, or (at your option) any later version.
47-- SmartEiffel is distributed in the hope that it will be useful but WITHOUT ANY WARRANTY; without even the implied warranty
48-- of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have
49-- received a copy of the GNU General Public License along with SmartEiffel; see the file COPYING. If not, write to the Free
50-- Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA.
51--
52-- Copyright(C) 1994-2002: INRIA - LORIA (INRIA Lorraine) - ESIAL U.H.P.       - University of Nancy 1 - FRANCE
53-- Copyright(C) 2003-2006: INRIA - LORIA (INRIA Lorraine) - I.U.T. Charlemagne - University of Nancy 2 - FRANCE
54--
55-- Authors: Dominique COLNET, Philippe RIBET, Cyril ADRIAN, Vincent CROIZIER, Frederic MERIZEN
56--
57-- http://SmartEiffel.loria.fr - SmartEiffel@loria.fr
58-- ------------------------------------------------------------------------------------------------------------------------------