diff options
Diffstat (limited to 'tests/exec.test')
| -rw-r--r-- | tests/exec.test | 30 |
1 files changed, 29 insertions, 1 deletions
diff --git a/tests/exec.test b/tests/exec.test index 3613cba..bb6ecd4 100644 --- a/tests/exec.test +++ b/tests/exec.test @@ -11,7 +11,7 @@ # See the file "license.terms" for information on usage and redistribution # of this file, and for a DISCLAIMER OF ALL WARRANTIES. # -# RCS: @(#) $Id: exec.test,v 1.16.2.4 2004/10/28 00:01:06 dgp Exp $ +# RCS: @(#) $Id: exec.test,v 1.16.2.5 2005/07/28 15:27:59 dkf Exp $ package require tcltest 2 namespace import -force ::tcltest::* @@ -600,6 +600,34 @@ test exec-18.1 { exec cat deals with weird file names} {exec tempNotWin} { set res } {0 contents} +# Note that this test cannot be adapted to work on Windows; that platform has +# no kernel support for an analog of O_APPEND. +test exec-19.1 {exec >> uses O_APPEND} { + -constraints {exec unix} + -setup { + set tmpfile [makeFile {0} tmpfile.exec-19.1] + } + -body { + # Note that we have to allow for the current contents of the + # temporary file, which is why the result is 14 and not 12 + exec /bin/sh -c \ + {for a in 1 2 3; do sleep 1; echo $a; done} >>$tmpfile & + exec /bin/sh -c \ + {for a in a b c; do sleep 1; echo $a; done} >>$tmpfile & + # The above two shell invokations take about 3 seconds to + # finish, so allow 5s (in case the machine is busy) + after 5000 + # Check that no bytes have got lost through mixups with + # overlapping appends, which is only guaranteed to work when + # we set O_APPEND on the file descriptor in the [exec >>...] + file size $tmpfile + } + -cleanup { + removeFile $tmpfile + } + -result 14 +} + # cleanup foreach file {script gorp.file gorp.file2 echo cat wc sh sleep exit err} { |