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Manual Reference Pages  -  TEST::TEMPDIR::TINY (3)

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NAME

Test::TempDir::Tiny - Temporary directories that stick around when tests fail

CONTENTS

VERSION

version 0.012

SYNOPSIS



    # t/foo.t
    use Test::More;
    use Test::TempDir::Tiny;

    # default tempdirs
    $dir = tempdir();          # ./tmp/t_foo_t/default_1/
    $dir = tempdir();          # ./tmp/t_foo_t/default_2/

    # labeled tempdirs
    $dir = tempdir("label");   # ./tmp/t_foo_t/label_1/
    $dir = tempdir("label");   # ./tmp/t_foo_t/label_2/

    # labels with spaces and non-word characters
    $dir = tempdir("bar baz")  # ./tmp/t_foo_t/bar_baz_1/
    $dir = tempdir("!!!bang")  # ./tmp/t_foo_t/_bang_1/

    # run code in a temporary directory
    in_tempdir "label becomes name" => sub {
        my $cwd = shift;
        # do stuff in a tempdir
    };



DESCRIPTION

This module works with Test::More to create temporary directories that stick around if tests fail.

It is loosely based on Test::TempDir, but with less complexity, greater portability and zero non-core dependencies. (Capture::Tiny is recommended for testing.)

The tempdir and in_tempdir functions are exported by default.

If the current directory is writable, the root for directories will be ./tmp. Otherwise, a File::Temp directory will be created wherever temporary directories are stored for your system.

Every *.t file gets its own subdirectory under the root based on the test filename, but with slashes and periods replaced with underscores. For example, t/foo.t would get a test-file-specific subdirectory ./tmp/t_foo_t/. Directories created by tempdir get put in that directory. This makes it very easy to find files later if tests fail.

The test-file-specific name is consistent from run-to-run. If an old directory already exists, it will be removed.

When the test file exits, if all tests passed, then the test-file-specific directory is recursively removed.

If a test failed and the root directory is ./tmp, the test-file-specific directory sticks around for inspection. (But if the root is a File::Temp directory, it is always discarded).

If nothing is left in ./tmp (i.e. no other test file failed), then ./tmp is cleaned up as well (unless it’s a symlink).

This module attempts to avoid race conditions due to parallel testing. In extreme cases, the test-file-specific subdirectory might be created as a regular File::Temp directory rather than in ./tmp. In such a case, a warning will be issued.

FUNCTIONS

    tempdir



    $dir = tempdir();          # .../default_1/
    $dir = tempdir("label");   # .../label_1/



Creates a directory underneath a test-file-specific temporary directory and returns the absolute path to it in platform-native form (i.e. with backslashes on Windows).

The function takes a single argument as a label for the directory or defaults to default. An incremental counter value will be appended to allow a label to be used within a loop with distinct temporary directories:



    # t/foo.t

    for ( 1 .. 3 ) {
        tempdir("in loop");
    }

    # creates:
    #   ./tmp/t_foo_t/in_loop_1
    #   ./tmp/t_foo_t/in_loop_2
    #   ./tmp/t_foo_t/in_loop_3



If the label contains any characters besides alphanumerics, underscore and dash, they will be collapsed and replaced with a single underscore.



    $dir = tempdir("a space"); # .../a_space_1/
    $dir = tempdir("a!bang");  # .../a_bang_1/



The test-file-specific directory and all directories within it will be cleaned up with an END block if the current test file passes tests.

    in_tempdir



    in_tempdir "label becomes name" => sub {
        my $cwd = shift;
        # this happens in tempdir
    };



Given a label and a code reference, creates a temporary directory based on the label (following the rules of tempdir), changes to that directory, runs the code, then changes back to the original directory.

The temporary directory path is given as an argument to the code reference.

When the code finishes (even if it dies), in_tempdir will change back to the original directory if it can, to the root if it can’t, and will rethrow any fatal errors.

ENVIRONMENT

CWPERL_TEST_TEMPDIR_TINY_NOCLEANUP

When this environment variable is true, directories will not be cleaned up, even if tests pass.

SEE ALSO

o File::Temp
o Path::Tiny

SUPPORT

    Bugs / Feature Requests

Please report any bugs or feature requests through the issue tracker at <https://github.com/dagolden/Test-TempDir-Tiny/issues>. You will be notified automatically of any progress on your issue.

    Source Code

This is open source software. The code repository is available for public review and contribution under the terms of the license.

<https://github.com/dagolden/Test-TempDir-Tiny>



  git clone https://github.com/dagolden/Test-TempDir-Tiny.git



AUTHOR

David Golden <dagolden@cpan.org>

CONTRIBUTORS

o Christian Walde <walde.christian@googlemail.com>
o David Golden <xdg@xdg.me>
o Shawn Laffan <shawnlaffan@gmail.com>

COPYRIGHT AND LICENSE

This software is Copyright (c) 2014 by David Golden.

This is free software, licensed under:



  The Apache License, Version 2.0, January 2004



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perl v5.20.3 TEST::TEMPDIR::TINY (3) 2016-02-24

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