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|
use strict;
use warnings;
use Test::More;
use Plack::Middleware::StackTrace;
use Plack::Test;
use HTTP::Request::Common;
{
# Simple exception object
package Plack::Middleware::StackTrace::Exception;
use overload '""' => sub { $_[0]->{message} };
sub new {
my ($class, $message) = @_;
return bless { message => $message }, $class;
}
}
# Tracks how often the destructor was called
my $dtor_count;
{
# A class similar to DBIx::Class::Storage::TxnScopeGuard where the
# destructor might throw and catch another exception.
package Plack::Middleware::StackTrace::Guard;
use Try::Tiny;
sub new {
my ($class, $exception) = @_;
return bless { exception => $exception }, $class;
}
sub DESTROY {
my $self = shift;
++$dtor_count;
try { die $self->{exception}; };
}
}
sub test_dtor_exception {
my ($orig_exception, $dtor_exception) = @_;
my $dtor_exception_app = sub {
my $guard = Plack::Middleware::StackTrace::Guard->new($dtor_exception);
die $orig_exception;
};
my $trace_app = Plack::Middleware::StackTrace->wrap($dtor_exception_app,
no_print_errors => 1,
);
test_psgi $trace_app, sub {
my $cb = shift;
$dtor_count = 0;
my $req = GET "/";
my $res = $cb->($req);
is $res->code, 500, "Status code is 500";
like $res->content, qr/^\Q$orig_exception\E at /,
"Original exception returned";
is $dtor_count, 1, "Destructor called only once";
};
}
test_dtor_exception("urz", "orz");
test_dtor_exception(
Plack::Middleware::StackTrace::Exception->new("urz"),
Plack::Middleware::StackTrace::Exception->new("orz"),
);
{
# A middleware that rethrows exceptions
package Plack::Middleware::StackTrace::Rethrow;
use parent qw(Plack::Middleware);
use Try::Tiny;
sub call {
my ($self, $env) = @_;
try {
$self->app->($env);
} catch {
die $_;
};
}
}
# This sub is expected to appear in the stack trace.
sub fizzle {
my $exception = shift;
die $exception;
}
sub test_rethrown_exception {
my $exception = shift;
my $die_app = sub {
fizzle($exception);
};
my $rethrow_app = Plack::Middleware::StackTrace::Rethrow->wrap($die_app);
my $trace_app = Plack::Middleware::StackTrace->wrap($rethrow_app,
no_print_errors => 1,
);
test_psgi $trace_app, sub {
my $cb = shift;
my $req = GET "/";
my $res = $cb->($req);
is $res->code, 500, "Status code is 500";
like $res->content, qr/\bfizzle\b/, "Original stack trace returned";
};
}
test_rethrown_exception("orz");
test_rethrown_exception(Plack::Middleware::StackTrace::Exception->new("orz"));
done_testing;
|
