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# This file tests the tclWinTime.c file.
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#
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# This file contains a collection of tests for one or more of the Tcl
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# built-in commands. Sourcing this file into Tcl runs the tests and
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# generates output for errors. No output means no errors were found.
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#
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# Copyright (c) 1997 Sun Microsystems, Inc.
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# Copyright (c) 1998-1999 by Scriptics Corporation.
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#
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# See the file "license.terms" for information on usage and redistribution
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# of this file, and for a DISCLAIMER OF ALL WARRANTIES.
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#
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# RCS: @(#) $Id: winTime.test,v 1.8.2.1 2003/04/12 20:11:34 kennykb Exp $
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if {[lsearch [namespace children] ::tcltest] == -1} {
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package require tcltest
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namespace import -force ::tcltest::*
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}
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testConstraint testwinclock [llength [info commands testwinclock]]
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# The next two tests will crash on Windows if the check for negative
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# clock values is not done properly.
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test winTime-1.1 {TclpGetDate} {pcOnly} {
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set ::env(TZ) JST-9
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set result [clock format -1 -format %Y]
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unset ::env(TZ)
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set result
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} {1970}
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test winTime-1.2 {TclpGetDate} {pcOnly} {
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set ::env(TZ) PST8
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set result [clock format 1 -format %Y]
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unset ::env(TZ)
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set result
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} {1969}
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# Next test tries to make sure that the Tcl clock stays in step
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# with the Windows clock. 30 sec really isn't enough,
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# but how much time does a tester have patience for?
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test winTime-2.1 {Synchronization of Tcl and Windows clocks} {testwinclock} {
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# May fail due to OS/hardware discrepancies. See:
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# http://support.microsoft.com/default.aspx?scid=kb;en-us;274323
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set failed {}
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set ok 1
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foreach start_sec [testwinclock] break
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while { 1 } {
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foreach { sys_sec sys_usec tcl_sec tcl_usec } [testwinclock] break
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set diff [expr { $tcl_sec - $sys_sec
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+ 1.0e-6 * ( $tcl_usec - $sys_usec ) }]
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if { abs($diff) > 0.06 } {
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set failed "Tcl clock differs from system clock by $diff sec"
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break
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} else {
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testwinsleep 1
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}
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if { $sys_sec - $start_sec >= 30 } break
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}
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set failed
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} {}
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# cleanup
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::tcltest::cleanupTests
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return
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