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[SVN r29084]
This commit is contained in:
Jonathan Turkanis
204
test/finite_state_filter_test.cpp
Executable file
204
test/finite_state_filter_test.cpp
Executable file
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// (C) Copyright Jonathan Turkanis 2005.
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// Distributed under the Boost Software License, Version 1.0. (See accompanying
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// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt.)
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// See http://www.boost.org/libs/iostreams for documentation.
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#include <ios> // failure.
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#include <map>
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#include <boost/iostreams/filter/test.hpp>
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#include <boost/mpl/vector.hpp>
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#include <boost/test/test_tools.hpp>
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#include <boost/test/unit_test.hpp>
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#include "../example/finite_state_filter.hpp"
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using boost::unit_test::test_suite;
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namespace io = boost::iostreams;
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const std::string posix = // 'unix' is sometimes a macro.
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"When I was one-and-twenty\n"
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"I heard a wise man say,\n"
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"'Give crowns and pounds and guineas\n"
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"But not your heart away;\n"
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"\n"
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"Give pearls away and rubies\n"
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"But keep your fancy free.'\n"
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"But I was one-and-twenty,\n"
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"No use to talk to me.\n"
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"\n"
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"When I was one-and-twenty\n"
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"I heard him say again,\n"
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"'The heart out of the bosom\n"
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"Was never given in vain;\n"
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"'Tis paid with sighs a plenty\n"
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"And sold for endless rue.'\n"
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"And I am two-and-twenty,\n"
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"And oh, 'tis true, 'tis true.";
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const std::string dos =
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"When I was one-and-twenty\r\n"
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"I heard a wise man say,\r\n"
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"'Give crowns and pounds and guineas\r\n"
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"But not your heart away;\r\n"
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"\r\n"
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"Give pearls away and rubies\r\n"
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"But keep your fancy free.'\r\n"
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"But I was one-and-twenty,\r\n"
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"No use to talk to me.\r\n"
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"\r\n"
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"When I was one-and-twenty\r\n"
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"I heard him say again,\r\n"
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"'The heart out of the bosom\r\n"
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"Was never given in vain;\r\n"
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"'Tis paid with sighs a plenty\r\n"
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"And sold for endless rue.'\r\n"
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"And I am two-and-twenty,\r\n"
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"And oh, 'tis true, 'tis true.";
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const std::string comments =
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"When I was /*one-and-twenty\n"
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"I he*/ard a wise/ man say,\n"
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"'Give cr//*owns *and po**/unds and guineas\n"
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"But n*/ot yo*/ur he/*a*/rt /**/away;\n";
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const std::string no_comments =
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"When I was "
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"ard a wise/ man say,\n"
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"'Give cr/unds and guineas\n"
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"But n*/ot yo*/ur hert away;\n";
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struct identity_fsm
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: io::finite_state_machine<identity_fsm, char>
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{
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void on_any(char c) { push(c); }
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typedef boost::mpl::vector0<> transition_table;
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};
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struct dos2unix_fsm
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: io::finite_state_machine<dos2unix_fsm, char>
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{
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BOOST_IOSTREAMS_FSM(dos2unix_fsm) // Define skip and push.
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typedef dos2unix_fsm self;
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typedef boost::mpl::vector<
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row<initial_state, is<'\r'>, initial_state, &self::skip>,
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row<initial_state, is_any, initial_state, &self::push>
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> transition_table;
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};
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struct unix2dos_fsm
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: io::finite_state_machine<unix2dos_fsm, char>
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{
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BOOST_IOSTREAMS_FSM(unix2dos_fsm) // Define skip and push.
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typedef unix2dos_fsm self;
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void on_lf(char) { push('\r'); push('\n'); }
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typedef boost::mpl::vector<
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row<initial_state, is<'\n'>, initial_state, &self::on_lf>,
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row<initial_state, is_any, initial_state, &self::push>
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> transition_table;
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};
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struct dictionary_fsm
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: io::finite_state_machine<dictionary_fsm, char>
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{
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BOOST_IOSTREAMS_FSM(uncommenting_fsm) // Define skip and push.
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typedef dictionary_fsm self;
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typedef std::map<std::string, std::string> dictionary;
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void append(char c) { current_word_.push_back(c); }
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void lookup(char c)
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{
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}
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typedef boost::mpl::vector<
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row<initial_state, is_alpha, initial_state, &self::append>,
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row<initial_state, is_any, initial_state, &self::lookup>
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> transition_table;
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dictionary& dictionary_;
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std::vector<int> marks_;
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std::string current_word_;
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};
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struct uncommenting_fsm
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: io::finite_state_machine<uncommenting_fsm, char>
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{
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BOOST_IOSTREAMS_FSM(uncommenting_fsm) // Define skip and push.
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typedef uncommenting_fsm self;
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static const int no_comment = initial_state;
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static const int pre_comment = no_comment + 1;
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static const int comment = pre_comment + 1;
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static const int post_comment = comment + 1;
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void push_slash(char c) { push('/'); push(c); }
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typedef boost::mpl::vector<
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row<no_comment, is<'/'>, pre_comment, &self::skip>,
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row<no_comment, is_any, no_comment, &self::push>,
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row<pre_comment, is<'*'>, comment, &self::skip>,
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row<pre_comment, is<'/'>, pre_comment, &self::push>,
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row<pre_comment, is_any, no_comment, &self::push_slash>,
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row<comment, is<'*'>, post_comment, &self::skip>,
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row<comment, is_any, comment, &self::skip>,
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row<post_comment, is<'/'>, no_comment, &self::skip>,
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row<post_comment, is<'*'>, post_comment, &self::skip>,
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row<post_comment, is_any, comment, &self::skip>
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> transition_table;
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};
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void finite_state_filter_test()
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{
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using namespace std;
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typedef io::finite_state_filter<identity_fsm> identity_filter;
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typedef io::finite_state_filter<dos2unix_fsm> dos2unix_filter;
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typedef io::finite_state_filter<unix2dos_fsm> unix2dos_filter;
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typedef io::finite_state_filter<uncommenting_fsm> uncommenting_filter;
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// Test identity_filter.
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BOOST_CHECK(
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io::test_input_filter(identity_filter(), dos, dos)
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);
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BOOST_CHECK(
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io::test_output_filter(identity_filter(), dos, dos)
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);
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// Test dos2unix_filter.
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BOOST_CHECK(
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io::test_input_filter(dos2unix_filter(), dos, posix)
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);
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BOOST_CHECK(
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io::test_output_filter(dos2unix_filter(), dos, posix)
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);
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// Test unix2dos_filter.
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BOOST_CHECK(
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io::test_input_filter(unix2dos_filter(), posix, dos)
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);
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BOOST_CHECK(
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io::test_output_filter(unix2dos_filter(), posix, dos)
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);
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// Test uncommenting_filter.
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BOOST_CHECK(
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io::test_input_filter(uncommenting_filter(), comments, no_comments)
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);
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BOOST_CHECK(
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io::test_output_filter(uncommenting_filter(), comments, no_comments)
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);
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}
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test_suite* init_unit_test_suite(int, char* [])
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{
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test_suite* test = BOOST_TEST_SUITE("example test");
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test->add(BOOST_TEST_CASE(&finite_state_filter_test));
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return test;
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}
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