# -------------------------------------------------------------------------
# memchan.test -*- tcl -*-
# (C) 2017 Andreas Kupries. BSD licensed.
# -------------------------------------------------------------------------

source [file join \
	[file dirname [file dirname [file join [pwd] [info script]]]] \
	devtools testutilities.tcl]

testsNeedTcl     8.5
testsNeedTcltest 2.0
testsNeed        TclOO 1

support {
    use virtchannel_core/core.tcl   tcl::chan::core
    use virtchannel_core/events.tcl tcl::chan::events
}
testing {
    useLocal memchan.tcl tcl::chan::memchan
}

# -------------------------------------------------------------------------

test tcl-chan-memchan-1.0 {constructor wrong\#args} -body {
    tcl::chan::memchan X
} -returnCodes error \
    -result {wrong # args: should be "tcl::chan::memchan"}

# -------------------------------------------------------------------------

test tcl-chan-memchan-2.0 {tell, initial, empty} -setup {
    set c [tcl::chan::memchan]
} -body {
    tell $c
} -cleanup {
    close $c
    unset c
} -result 0

test tcl-chan-memchan-2.1 {seek from start, expand, tell} -setup {
    set c [tcl::chan::memchan]
} -body {
    seek $c 10
    tell $c
} -cleanup {
    close $c
    unset c
} -result 10

test tcl-chan-memchan-2.2 {seek from end, eof, empty, tell} -setup {
    set c [tcl::chan::memchan]
} -body {
    seek $c 0 end
    tell $c
} -cleanup {
    close $c
    unset c
} -result 0

test tcl-chan-memchan-2.3 {seek from end, eof, non-empty, tell} -setup {
    set c [tcl::chan::memchan]
    puts $c Hello
} -body {
    seek $c 0 end
    tell $c
} -cleanup {
    close $c
    unset c
} -result 6

test tcl-chan-memchan-2.4 {seek from end, non-eof, non-empty, tell} -setup {
    set c [tcl::chan::memchan]
    puts $c Hello
} -body {
    seek $c -6 end
    tell $c
} -cleanup {
    close $c
    unset c
} -result 0

# -------------------------------------------------------------------------
# Explicit cleanup of loaded support classes.
rename tcl::chan::events {}
rename tcl::chan::core   {}
testsuiteCleanup
return

# Local Variables:
#  mode: tcl
#  indent-tabs-mode: nil
# End: