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Problem Report 0831 Details

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This page provides all information on Problem Report 0831.

Report 0831 Actions

    Problem Report Number 0831
    Submitter's Classification Test Suite problem
    State Resolved
    Resolution Test Suite Deficiency (TSD)
    Problem Resolution ID TSD.X.0346
    Raised 1970-01-01 08:00
    Updated 2003-03-13 08:00
    Published 1996-02-12 08:00
    Product Standard Commands and Utilities V2 (UNIX 95)
    Certification Program The Open Brand certification program
    Test Suite VSC version 4.1.5
    Test Identification POSIX.cmd/printf 28
    Problem Summary TSD4C.00165 This test may fail on implementations that treat pipelines as subshell environments.
    Problem Text
    This test may fail on implementations that treat pipelines as subshell
    environments.

    Test assertion #28 uses the following to initialize the $letters
    variable:

    echo S | od -b -N 1 | read junk letters

    $letters is then used to set up and test part 8 of this test case:

    var8=`printf %b "\0$letters"`
    .
    .

    [ "$var8" = "S" }

    On our implementation this will not work because letters never gets
    initialized by the pipeline commands. See section 2.12 of X/Open
    Commands and Utilities Issue 4, Version 2:

    "Some systems have implemented the last stage of a pipeline in the
    current environment so that commands such as:

    command | read foo

    set variable foo in the current environment. This extension is allowed,
    but not required; therefore, a shell programmer should consider a
    pipeline to be in a subshell environment, but not depend on it."

    Test Output

    18:10:38|IC Start
    18:10:38|TP Start
    9375 1 1|Assertion #28 (A):
    375 1 11|Command failed: '[ "" = "S" ]'
    18:12:48|FAIL
    18:12:48|IC End

    Review Information

    Review Type TSMA Review
    Start Date null
    Completed null
    Status Complete
    Review Recommendation No Resolution Given
    Review Response
    We agree this is a test suite deficiency in the test
    suite version(s) listed.

    Review Type SA Review
    Start Date null
    Completed null
    Status Complete
    Review Resolution Test Suite Deficiency (TSD)
    Review Conclusion
    This is an agreed Test Suite Deficiency.

    Problem Reporting System Options:

     

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