test_configfile.cc

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#include <boost/test/auto_unit_test.hpp>

#include "testsuite.hh"
#include <utilmm/configfile/configfile.hh>
#include <utilmm/configfile/commandline.hh>
#include <boost/filesystem/path.hpp>
#include <utilmm/stringtools.hh>
#include <algorithm>

using namespace utilmm;
using namespace boost::filesystem;
using namespace std;

auto_ptr<config_file> setup()
{
    path testdir = path(__FILE__).branch_path();
    return auto_ptr<config_file>(new config_file( (testdir / "test_configfile.config").native_file_string().c_str() ));
}
#define SETUP auto_ptr<config_file> config( setup() )


BOOST_AUTO_TEST_CASE( test_basic_properties )
{
    SETUP;

    BOOST_REQUIRE(! config->empty());
    config_set empty_set;
    BOOST_REQUIRE( empty_set.empty() );
}

template<typename T>
void test_get_scalar(config_set const& config, string const& name, T expected)
{ 
    T val = config.get<T>(name);
    BOOST_REQUIRE_EQUAL(val, expected);
}
BOOST_AUTO_TEST_CASE( test_scalar )
{
    SETUP;

    BOOST_REQUIRE_EQUAL(config->get<string>("unknown_key", "defval"), "defval");
    BOOST_REQUIRE_EQUAL(config->get<string> ("str"), "a string");
    BOOST_REQUIRE_EQUAL(config->get<int>("int_one"), 1);
    BOOST_REQUIRE_EQUAL(config->get<bool>("bool_true"), true);
    BOOST_REQUIRE_EQUAL(config->get<bool>("bool_false"), false);
    BOOST_REQUIRE_THROW(config->get<bool>("bool_invalid"), boost::bad_lexical_cast);
}

BOOST_AUTO_TEST_CASE( test_list )
{
    SETUP;

    list<int> values = config->get< list<int> >("list");
    BOOST_REQUIRE(!values.empty());
    
    vector<int> expected(10, 0);
    for (list<int>::const_iterator it = values.begin(); it != values.end(); ++it)
        expected[*it] = 1;

    BOOST_REQUIRE(find(expected.begin(), expected.end(), 0) == expected.end());
    
}

BOOST_AUTO_TEST_CASE( test_child )
{
    SETUP;

    std::list<config_set const*> children = config->children("child");
    BOOST_REQUIRE_EQUAL(children.size(), 1UL);
    
    config_set const* child = children.front();
    BOOST_REQUIRE_EQUAL(child->get<string>("str"), "another string");

    config_set const& only_child = config->child("child");
    BOOST_REQUIRE_EQUAL(child, &only_child);

    config_set const& not_a_child = config->child("not_a_child");
    BOOST_REQUIRE(not_a_child.empty());
}

BOOST_AUTO_TEST_CASE( test_cmdline_option_parsing )
{
    SETUP;

    { cmdline_option opt("*:include,I=string:include path");
        BOOST_REQUIRE(!opt.isRequired());
        BOOST_REQUIRE(opt.isMultiple());
        BOOST_REQUIRE_EQUAL("include", opt.getLong());
        BOOST_REQUIRE_EQUAL("include", opt.getConfigKey());
        BOOST_REQUIRE_EQUAL("I", opt.getShort());
        BOOST_REQUIRE(opt.hasArgument());
        BOOST_REQUIRE(!opt.isArgumentOptional());
        BOOST_REQUIRE(!opt.hasDefaultValue());
        BOOST_REQUIRE(opt.getArgumentFlags() & cmdline_option::StringArgument);
        BOOST_REQUIRE_EQUAL("include path", opt.getHelp());
    }
    { cmdline_option opt("!:required=bool:is a required argument");
        BOOST_REQUIRE(opt.isRequired());
        BOOST_REQUIRE(!opt.isMultiple());
        BOOST_REQUIRE_EQUAL("required", opt.getLong());
        BOOST_REQUIRE_EQUAL("required", opt.getConfigKey());
        BOOST_REQUIRE_EQUAL("", opt.getShort());
        BOOST_REQUIRE(opt.hasArgument());
        BOOST_REQUIRE(opt.getArgumentFlags() & cmdline_option::BoolArgument);
        BOOST_REQUIRE_EQUAL("is a required argument", opt.getHelp());
    }
    { cmdline_option opt("vkey:verbose,v?int,1:include path");
        BOOST_REQUIRE(!opt.isRequired());
        BOOST_REQUIRE(!opt.isMultiple());
        BOOST_REQUIRE_EQUAL("vkey", opt.getConfigKey());
        BOOST_REQUIRE_EQUAL("verbose", opt.getLong());
        BOOST_REQUIRE_EQUAL("v", opt.getShort());
        BOOST_REQUIRE(opt.hasArgument());
        BOOST_REQUIRE(opt.isArgumentOptional());
        BOOST_REQUIRE(opt.hasDefaultValue());
        BOOST_REQUIRE(opt.getArgumentFlags() & cmdline_option::IntArgument);
        BOOST_REQUIRE_EQUAL("1", opt.getDefaultValue());
        BOOST_REQUIRE_EQUAL("include path", opt.getHelp());
    }
    { cmdline_option opt(":quiet");
        BOOST_REQUIRE(!opt.isRequired());
        BOOST_REQUIRE(!opt.isMultiple());
        BOOST_REQUIRE_EQUAL("quiet", opt.getConfigKey());
        BOOST_REQUIRE_EQUAL("quiet", opt.getLong());
        BOOST_REQUIRE_EQUAL("", opt.getShort());
        BOOST_REQUIRE(!opt.hasArgument());
        BOOST_REQUIRE_EQUAL("", opt.getHelp());
    }

    // no long option
    BOOST_REQUIRE_THROW( cmdline_option option("*::bla"), bad_syntax );
    // invalid long option
    BOOST_REQUIRE_THROW( cmdline_option option("*:invalid key:bla"), bad_syntax );
    // invalid data type
    BOOST_REQUIRE_THROW( cmdline_option option(":blo=badtype"), bad_syntax );
    // optional argument and no default value
    BOOST_REQUIRE_THROW( cmdline_option option(":foo?int"), bad_syntax );
    // required option, required argument and default value
    BOOST_REQUIRE_THROW( cmdline_option opt("!:required=bool,true:is a required argument"), bad_syntax );
    // required option, optional argument and default value
    BOOST_REQUIRE_NO_THROW( cmdline_option opt("!:required?bool,true:is a required argument") );
}

void check_cmdline_properties(command_line& cmdline)
{
    config_set config;
    const char* valid_argv[] = { "--required=false", "-I", "bla", "--include=test", "--quiet", "--verbose", "bla.cpp" };
    
    cmdline.parse(7, valid_argv, config);
    BOOST_REQUIRE_EQUAL(1UL, cmdline.remaining().size() );
    BOOST_REQUIRE_EQUAL("bla.cpp", cmdline.remaining().front() );

    list<string> includes = config.get< list<string> >("include");
    BOOST_REQUIRE_EQUAL(2UL, includes.size());
    BOOST_REQUIRE( "bla" ==  includes.back() || "bla" == includes.front() );
    BOOST_REQUIRE( "test" ==  includes.back() || "test" == includes.front() );

    BOOST_REQUIRE_EQUAL( config.get<bool>("quiet"), true );
    BOOST_REQUIRE_EQUAL( config.get<bool>("vkey"), 1 );
    BOOST_REQUIRE_EQUAL( config.get<int>("defval"), 10 );
}

BOOST_AUTO_TEST_CASE( test_commandline )
{
    char const* valid_spec[] = { 
        "*:include,I=string:include path",
        "!:required=bool:is a required argument",
        "vkey:verbose,v?int,1:include path",
        "defval:default-value=int,10:should be set to default value",
        ":quiet",
        0
    };

    {
        list<string> strlist_spec;
        for (char const** specline = valid_spec; *specline; ++specline)
            strlist_spec.push_back(*specline);

        command_line cmdline(valid_spec);
        check_cmdline_properties(cmdline);
    }

    command_line cmdline(valid_spec);
    check_cmdline_properties(cmdline);

    config_set config;

    char const* missing_required[] = { "--quiet" };
    BOOST_REQUIRE_THROW( cmdline.parse(1, missing_required, config), commandline_error );

    char const* missing_argument[] = { "--required=true", "--include" };
    BOOST_REQUIRE_THROW( cmdline.parse(2, missing_argument, config), commandline_error );

    char const* missing_argument_short[] = { "--required=true", "-I", "--quiet" };
    BOOST_REQUIRE_THROW( cmdline.parse(3, missing_argument_short, config), commandline_error );

    char const* invalid_argument_type[] = { "--required=true", "--verbose=bla" };
    BOOST_REQUIRE_THROW( cmdline.parse(2, invalid_argument_type, config), commandline_error );

    char const* overriding_default_value[] = { "--required=true", "--default-value=20" };
    BOOST_REQUIRE_NO_THROW( cmdline.parse(2, overriding_default_value, config) );
    BOOST_REQUIRE_EQUAL(20, config.get<int>("defval"));
}