OpenFPGA/libs/EXTERNAL/tcl8.6.12/tests/winTime.test

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2022-06-07 11:15:20 -05:00
# This file tests the tclWinTime.c file.
#
# This file contains a collection of tests for one or more of the Tcl
# built-in commands. Sourcing this file into Tcl runs the tests and
# generates output for errors. No output means no errors were found.
#
# Copyright (c) 1997 Sun Microsystems, Inc.
# Copyright (c) 1998-1999 by Scriptics Corporation.
#
# See the file "license.terms" for information on usage and redistribution
# of this file, and for a DISCLAIMER OF ALL WARRANTIES.
if {"::tcltest" ni [namespace children]} {
package require tcltest 2.5
namespace import -force ::tcltest::*
}
::tcltest::loadTestedCommands
catch [list package require -exact Tcltest [info patchlevel]]
testConstraint testwinclock [llength [info commands testwinclock]]
# Some things fail under all Continuous Integration systems for subtle reasons
# such as CI often running with elevated privileges in a container.
testConstraint notInCIenv [expr {![info exists ::env(CI)]}]
# The next two tests will crash on Windows if the check for negative
# clock values is not done properly.
test winTime-1.1 {TclpGetDate} {win} {
set ::env(TZ) JST-9
set result [clock format -1 -format %Y]
unset ::env(TZ)
set result
} {1970}
test winTime-1.2 {TclpGetDate} {win} {
set ::env(TZ) PST8
set result [clock format 1 -format %Y]
unset ::env(TZ)
set result
} {1969}
# Next test tries to make sure that the Tcl clock stays in step
# with the Windows clock. 30 sec really isn't enough,
# but how much time does a tester have patience for?
test winTime-2.1 {Synchronization of Tcl and Windows clocks} {testwinclock notInCIenv} {
# May fail due to OS/hardware discrepancies. See:
# http://support.microsoft.com/default.aspx?scid=kb;en-us;274323
set failed {}
set ok 1
foreach start_sec [testwinclock] break
while { 1 } {
foreach { sys_sec sys_usec tcl_sec tcl_usec } [testwinclock] break
set diff [expr { $tcl_sec - $sys_sec
+ 1.0e-6 * ( $tcl_usec - $sys_usec ) }]
if { abs($diff) > 0.1 } {
set failed "Tcl clock differs from system clock by $diff sec"
break
} else {
testwinsleep 1
}
if { $sys_sec - $start_sec >= 30 } break
}
set failed
} {}
# cleanup
::tcltest::cleanupTests
return