diff options
Diffstat (limited to 'tests/winTime.test')
| -rw-r--r-- | tests/winTime.test | 28 |
1 files changed, 27 insertions, 1 deletions
diff --git a/tests/winTime.test b/tests/winTime.test index 6bcb4b7..a8dec89 100644 --- a/tests/winTime.test +++ b/tests/winTime.test @@ -10,7 +10,7 @@ # 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 1.5 2000/04/10 17:19:06 ericm Exp $ +# RCS: @(#) $Id: winTime.test,v 1.6 2000/11/21 21:33:42 andreas_kupries Exp $ if {[lsearch [namespace children] ::tcltest] == -1} { package require tcltest @@ -33,6 +33,32 @@ test winTime-1.2 {TclpGetDate} {pcOnly} { set result } {1969} +# Next test tries to make sure that the Tcl clock stays in step +# with the Windows clock. 3000 iterations really isn't enough, +# but how many does a tester have patience for? + +test winTime-2.1 {Synchronization of Tcl and Windows clocks} {pcOnly} { + set failed 0 + foreach { sys_sec sys_usec tcl_sec tcl_usec } [testwinclock] {} + set olddiff [expr { abs ( $tcl_sec - $sys_sec + + 1.0e-6 * ( $tcl_usec - $sys_usec ) ) }] + set ok 1 + for { set i 0 } { $i < 3000 } { incr i } { + foreach { sys_sec sys_usec tcl_sec tcl_usec } [testwinclock] {} + set diff [expr { abs ( $tcl_sec - $sys_sec + + 1.0e-6 * ( $tcl_usec - $sys_usec ) ) }] + if { ( $diff > $olddiff + 1000 ) + || ( $diff > 11000 ) } { + set failed 1 + break + } else { + set olddiff $diff + after 1 + } + } + set failed +} {0} + # cleanup ::tcltest::cleanupTests return |