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-rw-r--r--tests/ioTrans.test171
1 files changed, 171 insertions, 0 deletions
diff --git a/tests/ioTrans.test b/tests/ioTrans.test
index 53078f7..aa2fbc7 100644
--- a/tests/ioTrans.test
+++ b/tests/ioTrans.test
@@ -598,6 +598,177 @@ test iortrans-4.9 {chan read, gets, bug 2921116} -setup {
} -result {{read rt* {test data
}} {}}
+# Driver for a base channel that emits several short "files"
+# with each terminated by a fleeting EOF
+ proc driver {cmd args} {
+ variable buffer
+ variable index
+ set chan [lindex $args 0]
+ switch -- $cmd {
+ initialize {
+ set index($chan) 0
+ set buffer($chan) .....
+ return {initialize finalize watch read}
+ }
+ finalize {
+ if {![info exists index($chan)]} {return}
+ unset index($chan) buffer($chan)
+ return
+ }
+ watch {}
+ read {
+ set n [lindex $args 1]
+ if {![info exists index($chan)]} {
+ driver initialize $chan
+ }
+ set new [expr {$index($chan) + $n}]
+ set result [string range $buffer($chan) $index($chan) $new-1]
+ set index($chan) $new
+ if {[string length $result] == 0} {
+ driver finalize $chan
+ }
+ return $result
+ }
+ }
+ }
+
+# Channel read transform that is just the identity - pass all through
+ proc idxform {cmd handle args} {
+ switch -- $cmd {
+ initialize {
+ return {initialize finalize read}
+ }
+ finalize {
+ return
+ }
+ read {
+ lassign $args buffer
+ return $buffer
+ }
+ }
+ }
+
+# Test that all EOFs pass through full xform stack. Proper data boundaries.
+# Check robustness against buffer sizes.
+test iortrans-4.10 {[5adbc350683] chan read, handle fleeting EOF} -body {
+ set chan [chan push [chan create read driver] idxform]
+ list [eof $chan] [read $chan] [eof $chan] [read $chan 0] [eof $chan] \
+ [read $chan] [eof $chan]
+} -cleanup {
+ close $chan
+} -result {0 ..... 1 {} 0 ..... 1}
+test iortrans-4.10.1 {[5adbc350683] chan read, handle fleeting EOF} -body {
+ set chan [chan push [chan create read driver] idxform]
+ chan configure $chan -buffersize 3
+ list [eof $chan] [read $chan] [eof $chan] [read $chan 0] [eof $chan] \
+ [read $chan] [eof $chan]
+} -cleanup {
+ close $chan
+} -result {0 ..... 1 {} 0 ..... 1}
+test iortrans-4.10.2 {[5adbc350683] chan read, handle fleeting EOF} -body {
+ set chan [chan push [chan create read driver] idxform]
+ chan configure $chan -buffersize 5
+ list [eof $chan] [read $chan] [eof $chan] [read $chan 0] [eof $chan] \
+ [read $chan] [eof $chan]
+} -cleanup {
+ close $chan
+} -result {0 ..... 1 {} 0 ..... 1}
+
+rename idxform {}
+
+# Channel read transform that delays the data and always returns something
+ proc delayxform {cmd handle args} {
+ variable store
+ switch -- $cmd {
+ initialize {
+ set store($handle) {}
+ return {initialize finalize read drain}
+ }
+ finalize {
+ unset store($handle)
+ return
+ }
+ read {
+ lassign $args buffer
+ if {$store($handle) eq {}} {
+ set reply [string index $buffer 0]
+ set store($handle) [string range $buffer 1 end]
+ } else {
+ set reply $store($handle)
+ set store($handle) $buffer
+ }
+ return $reply
+ }
+ drain {
+ delayxform read $handle {}
+ }
+ }
+ }
+
+# Test that all EOFs pass through full xform stack. Proper data boundaries.
+# Check robustness against buffer sizes.
+test iortrans-4.11 {[5adbc350683] chan read, handle fleeting EOF} -body {
+ set chan [chan push [chan create read driver] delayxform]
+ list [eof $chan] [read $chan] [eof $chan] [read $chan 0] [eof $chan] \
+ [read $chan] [eof $chan]
+} -cleanup {
+ close $chan
+} -result {0 ..... 1 {} 0 ..... 1}
+test iortrans-4.11.1 {[5adbc350683] chan read, handle fleeting EOF} -body {
+ set chan [chan push [chan create read driver] delayxform]
+ chan configure $chan -buffersize 3
+ list [eof $chan] [read $chan] [eof $chan] [read $chan 0] [eof $chan] \
+ [read $chan] [eof $chan]
+} -cleanup {
+ close $chan
+} -result {0 ..... 1 {} 0 ..... 1}
+test iortrans-4.11.2 {[5adbc350683] chan read, handle fleeting EOF} -body {
+ set chan [chan push [chan create read driver] delayxform]
+ chan configure $chan -buffersize 5
+ list [eof $chan] [read $chan] [eof $chan] [read $chan 0] [eof $chan] \
+ [read $chan] [eof $chan]
+} -cleanup {
+ close $chan
+} -result {0 ..... 1 {} 0 ..... 1}
+
+ rename delayxform {}
+
+# Channel read transform that delays the data and may return {}
+ proc delay2xform {cmd handle args} {
+ variable store
+ switch -- $cmd {
+ initialize {
+ set store($handle) {}
+ return {initialize finalize read drain}
+ }
+ finalize {
+ unset store($handle)
+ return
+ }
+ read {
+ lassign $args buffer
+ set reply $store($handle)
+ set store($handle) $buffer
+ return $reply
+ }
+ drain {
+ delay2xform read $handle {}
+ }
+ }
+ }
+
+test iortrans-4.12 {[5adbc350683] chan read, handle fleeting EOF} -body {
+ set chan [chan push [chan create read driver] delay2xform]
+ list [eof $chan] [read $chan] [eof $chan] [read $chan 0] [eof $chan] \
+ [read $chan] [eof $chan]
+} -cleanup {
+ close $chan
+} -result {0 ..... 1 {} 0 ..... 1}
+
+ rename delay2xform {}
+ rename driver {}
+
+
# --- === *** ###########################
# method write (via puts)