chown results from the CPAN

Apache-Test

# Licensed to the Apache Software Foundation (ASF) under one or more
# contributor license agreements.  See the NOTICE file distributed with
# this work for additional information regarding copyright ownership.
# The ASF licenses this file to You under the Apache License, Version 2.0
# (the "License"); you may not use this file except in compliance with
# the License.  You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
package Apache::TestUtil;

use strict;
use warnings FATAL => 'all';

use File::Find ();
use File::Path ();
use Exporter ();
use Carp ();
use Config;
use File::Basename qw(dirname);
use File::Spec::Functions qw(catfile catdir file_name_is_absolute tmpdir);
use Symbol ();
use Fcntl qw(SEEK_END);

use Apache::Test ();
use Apache::TestConfig ();

use vars qw($VERSION @ISA @EXPORT @EXPORT_OK %CLEAN);

$VERSION = '0.02';
@ISA     = qw(Exporter);

@EXPORT = qw(t_cmp t_debug t_append_file t_write_file t_open_file
    t_mkdir t_rmtree t_is_equal t_filepath_cmp t_write_test_lib
    t_server_log_error_is_expected t_server_log_warn_is_expected
    t_client_log_error_is_expected t_client_log_warn_is_expected
);

@EXPORT_OK = qw(t_write_perl_script t_write_shell_script t_chown
                t_catfile_apache t_catfile t_file_watch_for
                t_start_error_log_watch t_finish_error_log_watch
                t_start_file_watch t_read_file_watch t_finish_file_watch);

%CLEAN = ();

$Apache::TestUtil::DEBUG_OUTPUT = \*STDOUT;

# 5.005's Data::Dumper has problems to dump certain datastructures
use constant HAS_DUMPER => eval { $] >= 5.006 && require Data::Dumper; };
use constant INDENT     => 4;

{
    my %files;
    sub t_start_file_watch (;$) {
        my $name = defined $_[0] ? $_[0] : 'error_log';
        $name = File::Spec->catfile(Apache::Test::vars->{t_logs}, $name)
            unless (File::Spec->file_name_is_absolute($name));

        if (open my $fh, '<', $name) {
            seek $fh, 0, SEEK_END;
            $files{$name} = $fh;
        }
        else {
            delete $files{$name};
        }

        return;
    }

    sub t_finish_file_watch (;$) {
        my $name = defined $_[0] ? $_[0] : 'error_log';
        $name = File::Spec->catfile(Apache::Test::vars->{t_logs}, $name)
            unless (File::Spec->file_name_is_absolute($name));

        my $fh = delete $files{$name};
        unless (defined $fh) {
            open $fh, '<', $name or return;
            return readline $fh;
        }

        return readline $fh;
     }

    sub t_read_file_watch (;$) {
        my $name = defined $_[0] ? $_[0] : 'error_log';
        $name = File::Spec->catfile(Apache::Test::vars->{t_logs}, $name)
            unless (File::Spec->file_name_is_absolute($name));

        my $fh = $files{$name};
        unless (defined $fh) {
            open $fh, '<', $name or return;
            $files{$name} = $fh;
        }

        return readline $fh;
    }

    sub t_file_watch_for ($$$) {
	my ($name, $re, $timeout) = @_;

lib/Apache/TestUtil.pm view on Meta::CPAN

}

sub t_write_shell_script {
    my $file = shift;

    my $code = join '', @_;
    my($ext, $shebang);

    if (Apache::TestConfig::WIN32()) {
        $code =~ s/echo$/echo./mg; #required to echo newline
        $ext = 'bat';
        $shebang = "\@echo off\nREM this is a bat";
    }
    else {
        $ext = 'sh';
        $shebang = '#!/bin/sh';
    }

    $file .= ".$ext";
    t_write_file($file, "$shebang\n", $code);
    $ext;
}

sub t_write_perl_script {
    my $file = shift;

    my $shebang = "#!$Config{perlpath}\n";
    my $warning = Apache::TestConfig->thaw->genwarning($file);
    t_write_file($file, $shebang, $warning, @_);
    chmod 0755, $file;
}


sub t_mkdir {
    my $dir = shift;
    makepath($dir);
}

# returns a list of dirs successfully created
sub makepath {
    my($path) = @_;

    return if !defined($path) || -e $path;
    my $full_path = $path;

    # remember which dirs were created and should be cleaned up
    while (1) {
        $CLEAN{dirs}{$path} = 1;
        $path = dirname $path;
        last if -e $path;
    }

    return File::Path::mkpath($full_path, 0, 0755);
}

sub t_rmtree {
    die "must pass a dirname" unless defined $_[0];
    File::Path::rmtree((@_ > 1 ? \@_ : $_[0]), 0, 1);
}

#chown a file or directory to the test User/Group
#noop if chown is unsupported

sub t_chown {
    my $file = shift;
    my $config = Apache::Test::config();
    my($uid, $gid);

    eval {
        #XXX cache this lookup
        ($uid, $gid) = (getpwnam($config->{vars}->{user}))[2,3];
    };

    if ($@) {
        if ($@ =~ /^The getpwnam function is unimplemented/) {
            #ok if unsupported, e.g. win32
            return 1;
        }
        else {
            die $@;
        }
    }

    CORE::chown($uid, $gid, $file) || die "chown $file: $!";
}

# $string = struct_as_string($indent_level, $var);
#
# return any nested datastructure via Data::Dumper or ala Data::Dumper
# as a string. undef() is a valid arg.
#
# $indent_level should be 0 (used for nice indentation during
# recursive datastructure traversal)
sub struct_as_string{
    return "???"   unless @_ == 2;
    my $level = shift;

    return "undef" unless defined $_[0];
    my $pad  = ' ' x (($level + 1) * INDENT);
    my $spad = ' ' x ($level       * INDENT);

    if (HAS_DUMPER) {
        local $Data::Dumper::Terse = 1;
        $Data::Dumper::Terse = $Data::Dumper::Terse; # warn
        my $data = Data::Dumper::Dumper(@_);
        $data =~ s/\n$//; # \n is handled by the caller
        return $data;
    }
    else {
        if (ref($_[0]) eq 'ARRAY') {
            my @data = ();
            for my $i (0..$#{ $_[0] }) {
                push @data,
                    struct_as_string($level+1, $_[0]->[$i]);
            }
            return join "\n", "[", map({"$pad$_,"} @data), "$spad\]";
        } elsif ( ref($_[0])eq 'HASH') {
            my @data = ();
            for my $key (keys %{ $_[0] }) {
                push @data,
                    "$key => " .
                    struct_as_string($level+1, $_[0]->{$key});
            }
            return join "\n", "{", map({"$pad$_,"} @data), "$spad\}";
        } else {
            return $_[0];
        }
    }
}

my $banner_format =
    "\n*** The following %s expected and harmless ***\n";

sub is_expected_banner {
    my $type  = shift;
    my $count = @_ ? shift : 1;
    sprintf $banner_format, $count == 1
        ? "$type entry is"
        : "$count $type entries are";
}

sub t_server_log_is_expected {
    print STDERR is_expected_banner(@_);
}

lib/Apache/TestUtil.pm view on Meta::CPAN

t_append_file().

This function is exported by default.

=item t_write_shell_script()

  Apache::TestUtil::t_write_shell_script($filename, @lines);

Similar to t_write_file() but creates a portable shell/batch
script. The created filename is constructed from C<$filename> and an
appropriate extension automatically selected according to the platform
the code is running under.

It returns the extension of the created file.

=item t_write_perl_script()

  Apache::TestUtil::t_write_perl_script($filename, @lines);

Similar to t_write_file() but creates a executable Perl script with
correctly set shebang line.

=item t_open_file()

  my $fh = t_open_file($filename);

t_open_file() opens a file I<$filename> for writing and returns the
file handle to the opened file.

If parent directories of C<$filename> don't exist they will be
automagically created.

The generated file will be automatically deleted at the end of the
program's execution.

This function is exported by default.

=item t_mkdir()

  t_mkdir($dirname);

t_mkdir() creates a directory I<$dirname>. The operation will fail if
the parent directory doesn't exist.

If parent directories of C<$dirname> don't exist they will be
automagically created.

The generated directory will be automatically deleted at the end of
the program's execution.

This function is exported by default.

=item t_rmtree()

  t_rmtree(@dirs);

t_rmtree() deletes the whole directories trees passed in I<@dirs>.

This function is exported by default.

=item t_chown()

  Apache::TestUtil::t_chown($file);

Change ownership of $file to the test's I<User>/I<Group>.  This
function is noop on platforms where chown(2) is unsupported
(e.g. Win32).

=item t_is_equal()

  t_is_equal($a, $b);

t_is_equal() compares any two datastructures and returns 1 if they are
exactly the same, otherwise 0. The datastructures can be nested
hashes, arrays, scalars, undefs or a combination of any of these.  See
t_cmp() for an example.

If C<$b> is a regex reference, the regex comparison C<$a =~ $b> is
performed. For example:

  t_is_equal($server_version, qr{^Apache});

If comparing non-scalars make sure to pass the references to the
datastructures.

This function is exported by default.

=item t_server_log_error_is_expected()

If the handler's execution results in an error or a warning logged to
the I<error_log> file which is expected, it's a good idea to have a
disclaimer printed before the error itself, so one can tell real
problems with tests from expected errors. For example when testing how
the package behaves under error conditions the I<error_log> file might
be loaded with errors, most of which are expected.

For example if a handler is about to generate a run-time error, this
function can be used as:

  use Apache::TestUtil;
  ...
  sub handler {
      my $r = shift;
      ...
      t_server_log_error_is_expected();
      die "failed because ...";
  }

After running this handler the I<error_log> file will include:

  *** The following error entry is expected and harmless ***
  [Tue Apr 01 14:00:21 2003] [error] failed because ...

When more than one entry is expected, an optional numerical argument,
indicating how many entries to expect, can be passed. For example:

  t_server_log_error_is_expected(2);

will generate:

  *** The following 2 error entries are expected and harmless ***

If the error is generated at compile time, the logging must be done in
the BEGIN block at the very beginning of the file:

  BEGIN {

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