--- /dev/null
+#!/usr/bin/perl -w
+
+BEGIN {
+ if ( $ENV{PERL_CORE} ) {
+ chdir 't';
+ @INC = ( '../lib', 'lib' );
+ }
+ else {
+ unshift @INC, 't/lib';
+ }
+}
+
+use strict;
+use vars qw(%INIT %CUSTOM);
+
+use Test::More tests => 24;
+use File::Spec::Functions qw( catfile );
+
+use_ok('TAP::Parser::SubclassTest');
+
+# TODO: foreach my $source ( ... )
+my $t_dir = $ENV{PERL_CORE} ? 'lib' : 't';
+
+{ # perl source
+ %INIT = %CUSTOM = ();
+ my $source = catfile( $t_dir, 'subclass_tests', 'perl_source' );
+ my $p = TAP::Parser::SubclassTest->new( { source => $source } );
+
+ # The grammar is lazily constructed so we need to ask for it to
+ # trigger it's creation.
+ my $grammer = $p->_grammar;
+
+ ok( $p->{initialized}, 'new subclassed parser' );
+
+ is( $p->source_class => 'MySource', 'source_class' );
+ is( $p->perl_source_class => 'MyPerlSource', 'perl_source_class' );
+ is( $p->grammar_class => 'MyGrammar', 'grammar_class' );
+ is( $p->iterator_factory_class => 'MyIteratorFactory',
+ 'iterator_factory_class'
+ );
+ is( $p->result_factory_class => 'MyResultFactory',
+ 'result_factory_class'
+ );
+
+ is( $INIT{MyPerlSource}, 1, 'initialized MyPerlSource' );
+ is( $CUSTOM{MyPerlSource}, 1, '... and it was customized' );
+ is( $INIT{MyGrammar}, 1, 'initialized MyGrammar' );
+ is( $CUSTOM{MyGrammar}, 1, '... and it was customized' );
+
+ # make sure overrided make_* methods work...
+ %CUSTOM = ();
+ $p->make_source;
+ is( $CUSTOM{MySource}, 1, 'make custom source' );
+ $p->make_perl_source;
+ is( $CUSTOM{MyPerlSource}, 1, 'make custom perl source' );
+ $p->make_grammar;
+ is( $CUSTOM{MyGrammar}, 1, 'make custom grammar' );
+ $p->make_iterator;
+ is( $CUSTOM{MyIterator}, 1, 'make custom iterator' );
+ $p->make_result;
+ is( $CUSTOM{MyResult}, 1, 'make custom result' );
+
+ # make sure parser helpers use overrided classes too (the parser should
+ # be the central source of configuration/overriding functionality)
+ # The source is already tested above (parser doesn't keep a copy of the
+ # source currently). So only one to check is the Grammar:
+ %INIT = %CUSTOM = ();
+ my $r = $p->_grammar->tokenize;
+ isa_ok( $r, 'MyResult', 'i has results' );
+ is( $INIT{MyResult}, 1, 'initialized MyResult' );
+ is( $CUSTOM{MyResult}, 1, '... and it was customized' );
+ is( $INIT{MyResultFactory}, 1, '"initialized" MyResultFactory' );
+}
+
+SKIP: { # non-perl source
+ %INIT = %CUSTOM = ();
+ my $cat = '/bin/cat';
+ unless ( -e $cat ) {
+ skip "no '$cat'", 4;
+ }
+ my $file = catfile( $t_dir, 'data', 'catme.1' );
+ my $p = TAP::Parser::SubclassTest->new( { exec => [ $cat => $file ] } );
+
+ is( $INIT{MySource}, 1, 'initialized MySource subclass' );
+ is( $CUSTOM{MySource}, 1, '... and it was customized' );
+ is( $INIT{MyIterator}, 1, 'initialized MyIterator subclass' );
+ is( $CUSTOM{MyIterator}, 1, '... and it was customized' );
+}