1# The file tests the tcl_platform variable
2#
3# This file contains a collection of tests for one or more of the Tcl
4# built-in commands.  Sourcing this file into Tcl runs the tests and
5# generates output for errors.  No output means no errors were found.
6#
7# Copyright (c) 1999 by Scriptics Corporation
8#
9# See the file "license.terms" for information on usage and redistribution
10# of this file, and for a DISCLAIMER OF ALL WARRANTIES.
11#
12# RCS: @(#) 
13
14if {[lsearch [namespace children] ::tcltest] == -1} {
15    package require tcltest
16    namespace import -force ::tcltest::*
17}
18
19testConstraint testWinCPUID [llength [info commands testwincpuid]]
20
21test platform-1.1 {TclpSetVariables: tcl_platform} {
22    interp create i
23    i eval {catch {unset tcl_platform(debug)}}
24    i eval {catch {unset tcl_platform(threaded)}}
25    set result [i eval {lsort [array names tcl_platform]}]
26    interp delete i
27    set result
28} {byteOrder machine os osVersion platform pointerSize user wordSize}
29
30# Test assumes twos-complement arithmetic, which is true of virtually
31# everything these days.  Note that this does *not* use wide(), and
32# this is intentional since that could make Tcl's numbers wider than
33# the machine-integer on some platforms...
34test platform-2.1 {tcl_platform(wordSize) indicates size of native word} {
35    set result [expr {int(1 << (8 * $tcl_platform(wordSize) - 1))}]
36    # Result must be the largest bit in a machine word, which this checks
37    # without assuming how wide the word really is
38    list [expr {$result < 0}] [expr {$result ^ int($result - 1)}]
39} {1 -1}
40
41# On Windows, test that the CPU ID works
42
43test platform-3.1 {CPU ID on Windows } \
44    -constraints testWinCPUID \
45    -body {		
46	set cpudata [testwincpuid 0]
47	binary format iii \
48	    [lindex $cpudata 1] \
49	    [lindex $cpudata 3] \
50	    [lindex $cpudata 2] 
51    } \
52    -match regexp \
53    -result {^(?:AuthenticAMD|CentaurHauls|CyrixInstead|GenuineIntel)$}
54
55# cleanup
56::tcltest::cleanupTests
57return
58
59# Local Variables:
60# mode: tcl
61# End:
62