# $Id: NonFatal.pm 1608 2017-12-07 10:10:38Z willem $	-*-perl-*-

# Test::More calls functions from Test::Builder. Those functions all eventually
# call Test::Builder::ok (on a builder instance) for reporting the status.
# Here we define a new builder inherited from Test::Builder, with a redefined
# ok method that always reports the test to have completed successfully.
#
# The functions NonFatalBegin and NonFatalEnd re-bless the builder in use by
# Test::More (Test::More->builder) to be of type Test::NonFatal and
# Test::Builder respectively. Tests that are between those functions will thus
# always appear to succeed. The failure report itself is not suppressed.
#
# Note that the builder is only re-blessed when the file 't/online.nonfatal'
# exists.
#
# This is just a quick hack to allow for non-fatal unit tests. It has many
# problems such as for example that blocks marked by the NonFatalBegin and
# NonFatalEnd subroutines may not be nested.
#

use strict;
use Test::More;

use constant NONFATAL => eval { -e 't/online.nonfatal' };

my @failed;

END {
	my $n = scalar(@failed);
	my $s = $n > 1 ? 's' : '';
	diag( join "\n\t", "\tDisregarding $n failed sub-test$s", @failed ) if $n;
}


{
	package Test::NonFatal;

	use base qw(Test::Builder);

	sub ok {
		my ( $self, $test, $name ) = ( @_, '' );

		return $self->SUPER::ok( 1, $name ) if $test;

		$self->SUPER::ok( 1, "NOT OK, but tolerating failure, $name" );

		push @failed, $name;
		return $test;
	}
}


sub NonFatalBegin {
	bless Test::More->builder, qw(Test::NonFatal) if NONFATAL;
}

sub NonFatalEnd {
	bless Test::More->builder, qw(Test::Builder) if NONFATAL;
}


1;