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# Copyright (C) 2008-2009 Sun Microsystems, Inc. All rights reserved.
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# Use is subject to license terms.
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; version 2 of the License.
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# This program is distributed in the hope that it will be useful, but
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# WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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# General Public License for more details.
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301
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use GenTest::Constants;
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use GenTest::Simplifier::Grammar;
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use GenTest::Generator::FromGrammar;
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use Test::More tests => 1;
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my $initial_grammar_file = 't/simplify-grammar.yy';
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open(INITIAL_GRAMMAR, $initial_grammar_file) or die $!;
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read(INITIAL_GRAMMAR, my $initial_grammar_string , -s $initial_grammar_file);
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close(INITIAL_GRAMMAR);
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my $simplifier = GenTest::Simplifier::Grammar->new(
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my $oracle_grammar_string = shift;
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my $generator = GenTest::Generator::FromGrammar->new(
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grammar_string => $oracle_grammar_string
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foreach my $queries (1..1000) {
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my $query = $generator->next();
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return 0 if not defined $query;
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my $sql = join('; ', @$query);
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return 0 if $sql eq '';
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($sql =~ m{select}sio) &&
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($sql =~ m{where}sio) &&
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($sql =~ m{C1|C2}sio) &&
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($sql =~ m{order by}sio) &&
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($sql =~ m{group by}sio) &&
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($sql !~ m{limit}sio) &&
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say("Query $sql matches.");
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say("No queries matched.");
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my $simplified_grammar_string = $simplifier->simplify($initial_grammar_string);
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print "Simplified grammar:\n\n$simplified_grammar_string;\n\n";
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ok(defined $simplified_grammar_string, "simplify-grammar");