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package TestLogging;
use strict;
use warnings;
use Test::More;
use Try::Tiny;
use Exporter 'import';
our @EXPORT= qw( capture_output test_log_method );
# my ($stdout, $stderr)= capture_output( \&coderef )
sub capture_output(&) {
my $code= shift;
my ($stdout, $stderr)= ('', '');
my $tb= Test::Builder->new if Test::Builder->can('new');
my ($out, $fout);
try {
# Set up capture for stdout/stderr
local *STDOUT;
local *STDERR;
open STDOUT, '>', \$stdout or die "Can't redirect stdout to a memory buffer: $!";
open STDERR, '>', \$stderr or die "Can't redirect stderr to a memory buffer: $!";
# Also capture Test::Builder output
my $out= $tb->output if $tb;
my $fout= $tb->failure_output if $tb;
$tb->output(\*STDOUT) if $tb;
$tb->failure_output(\*STDERR) if $tb;
# Now run the code
$code->();
} finally {
# restore handles
$tb->output($out) if $tb;
$tb->failure_output($fout) if $tb;
};
return ($stdout, $stderr);
}
sub test_log_method {
my ($log, $method, $message, $stdout_pattern, $stderr_pattern)= @_;
my ($stdout, $stderr)= capture_output { $log->$method($message) };
if (ref $stdout_pattern) {
like( $stdout, $stdout_pattern, "result of $method($message) stdout" );
} else {
is( $stdout, $stdout_pattern, "result of $method($message) stdout" );
}
if (ref $stderr_pattern) {
like( $stderr, $stderr_pattern, "result of $method($message) stderr" );
} else {
is( $stderr, $stderr_pattern, "result of $method($message) stderr" );
}
}
1;
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