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# -*- tcl -*-
# Commands covered: fifo
#
# This file contains a collection of tests for one or more of the commands
# the Memchan extension. Sourcing this file into Tcl runs the tests and
# generates output for errors. No output means no errors were found.
#
# Copyright (c) 1999 Andreas Kupries (a.kupries@westend.com)
#
# See the file "license.terms" for information on usage and redistribution
# of this file, and for a DISCLAIMER OF ALL WARRANTIES.
#
# $Id: fifo_bb.test,v 1.1 1999/09/18 13:36:03 aku Exp $
test fifo-basic-1.0 {Create memory fifo channels} {
set chan [fifo]
close $chan
regsub -all {[0-9]} $chan {} chan
set chan
} {fifo}
# Neither tell nor seek possible for fifos
test fifo-basic-1.1 {Check tell on memory fifo channels} {
set chan [fifo]
set res [tell $chan]
close $chan
set res
} {-1}
test fifo-basic-1.2 {Check seek on memory fifo channels} {
set chan [fifo]
set res [catch {[seek $chan 0]} msg]
close $chan
list $res [regexp -nocase -- invalid $msg]
} {1 1}
test fifo-basic-1.3 {Check fconfigure/get on memory fifo channels} {
set chan [fifo]
set conf [fconfigure $chan]
set res [list]
lappend res [lrange $conf [set pos [lsearch -exact $conf -length]] [incr pos]]
lappend res [lrange $conf [set pos [lsearch -exact $conf -allocated]] [incr pos]]
close $chan
set res
} {{-length 0} {-allocated 0}}
test fifo-basic-1.4 {Check fconfigure/get -length} {
set chan [fifo]
set res [fconfigure $chan -length]
close $chan
set res
} {0}
test fifo-rw-1.0 {Write and length} {
set chan [fifo]
puts -nonewline $chan {hello world}
set res [list [fconfigure $chan -length]]
close $chan
set res
} {11}
test fifo-rw-1.1 {Write and read} {
set chan [fifo]
puts -nonewline $chan {hello world!}
set res [list [fconfigure $chan -length]]
lappend res [read $chan]
close $chan
set res
} {12 {hello world!}}
::tcltest::cleanupTests
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