# 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. # # RCS: @(#) $Id: winTime.test,v 1.8.2.1 2003/04/12 20:11:34 kennykb Exp $ if {[lsearch [namespace children] ::tcltest] == -1} { package require tcltest namespace import -force ::tcltest::* } testConstraint testwinclock [llength [info commands testwinclock]] # The next two tests will crash on Windows if the check for negative # clock values is not done properly. test winTime-1.1 {TclpGetDate} {pcOnly} { set ::env(TZ) JST-9 set result [clock format -1 -format %Y] unset ::env(TZ) set result } {1970} test winTime-1.2 {TclpGetDate} {pcOnly} { 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} { # 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) > 0.06 } { 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