// -*- mode: c++; c-basic-offset:4 -*-

// This file is part of libdap, A C++ implementation of the OPeNDAP Data
// Access Protocol.

// Copyright (c) 2002,2003 OPeNDAP, Inc.
// Author: James Gallagher <jgallagher@opendap.org>
//
// This library is free software; you can redistribute it and/or
// modify it under the terms of the GNU Lesser General Public
// License as published by the Free Software Foundation; either
// version 2.1 of the License, or (at your option) any later version.
// 
// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
// Lesser General Public License for more details.
// 
// You should have received a copy of the GNU Lesser General Public
// License along with this library; if not, write to the Free Software
// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
//
// You can contact OPeNDAP, Inc. at PO Box 112, Saunderstown, RI. 02874-0112.

#include <cppunit/TextTestRunner.h>
#include <cppunit/extensions/TestFactoryRegistry.h>
#include <cppunit/extensions/HelperMacros.h>

#include "parser.h"

#include "GetOpt.h"

using namespace CppUnit;
using namespace libdap;
using namespace std;

static bool debug = false;

class parserUtilTest: public TestFixture {
private:

public:
    parserUtilTest()
    {
    }
    ~parserUtilTest()
    {
    }

    void setUp()
    {
    }

    void tearDown()
    {
    }

    CPPUNIT_TEST_SUITE (parserUtilTest);

    CPPUNIT_TEST (check_byte_test);
    CPPUNIT_TEST (check_float32_test);
    CPPUNIT_TEST (check_float64_test);

    CPPUNIT_TEST_SUITE_END();

    // Tests for methods
    void check_byte_test()
    {
        CPPUNIT_ASSERT(check_byte("255"));
        CPPUNIT_ASSERT(!check_byte("256"));
        CPPUNIT_ASSERT(check_byte("0"));
        CPPUNIT_ASSERT(check_byte("-127"));
        CPPUNIT_ASSERT(check_byte("-128"));
        CPPUNIT_ASSERT(!check_byte("-129"));
        CPPUNIT_ASSERT(!check_byte("-32767"));
        CPPUNIT_ASSERT(!check_byte("32767"));
    }

    void check_float32_test()
    {
        CPPUNIT_ASSERT(check_float32("1.0"));
        CPPUNIT_ASSERT(check_float32("0.0"));
        CPPUNIT_ASSERT(check_float32("-0.0"));
        CPPUNIT_ASSERT(check_float32("+0.0"));
        CPPUNIT_ASSERT(check_float32(".0"));

        CPPUNIT_ASSERT(!check_float64("3.0.0"));
        CPPUNIT_ASSERT(!check_float64("3..0"));

        CPPUNIT_ASSERT(check_float32("3.402823466E+38"));
        CPPUNIT_ASSERT(check_float32("-3.402823466E+38"));
        CPPUNIT_ASSERT(check_float32("1.175494351E-38"));
        CPPUNIT_ASSERT(check_float32("-1.175494351E-38"));

        CPPUNIT_ASSERT(check_float32("NaN"));
        CPPUNIT_ASSERT(check_float32("nan"));
        CPPUNIT_ASSERT(check_float32("Nan"));

        CPPUNIT_ASSERT(!check_float32("3.502823466E+38"));
        CPPUNIT_ASSERT(!check_float32("-3.502823466E+38"));
        CPPUNIT_ASSERT(!check_float32("1.0E-38"));
        CPPUNIT_ASSERT(!check_float32("-1.0E-38"));

        CPPUNIT_ASSERT(!check_float32("1.7976931348623157E+308"));
        CPPUNIT_ASSERT(!check_float32("-1.7976931348623157E+308"));
        CPPUNIT_ASSERT(!check_float32("2.2250738585072014E-308"));
        CPPUNIT_ASSERT(!check_float32("-2.2250738585072014E-308"));
    }

    void check_float64_test()
    {
        CPPUNIT_ASSERT(check_float64("1.0"));
        CPPUNIT_ASSERT(check_float64("0.0"));
        CPPUNIT_ASSERT(check_float64("-0.0"));
        CPPUNIT_ASSERT(check_float64("+0.0"));
        CPPUNIT_ASSERT(check_float64(".0"));

        CPPUNIT_ASSERT(!check_float64("3.0.0"));
        CPPUNIT_ASSERT(!check_float64("3..0"));

        CPPUNIT_ASSERT(check_float64("3.402823466E+38"));
        CPPUNIT_ASSERT(check_float64("-3.402823466E+38"));
        CPPUNIT_ASSERT(check_float64("1.175494351E-38"));
        CPPUNIT_ASSERT(check_float64("-1.175494351E-38"));

        CPPUNIT_ASSERT(check_float64("1.7976931348623157E+308"));
        CPPUNIT_ASSERT(check_float64("-1.7976931348623157E+308"));
        CPPUNIT_ASSERT(check_float64("2.2250738585072014E-308"));
        CPPUNIT_ASSERT(check_float64("-2.2250738585072014E-308"));

        CPPUNIT_ASSERT(check_float64("NaN"));
        CPPUNIT_ASSERT(check_float64("nan"));
        CPPUNIT_ASSERT(check_float64("Nan"));

        CPPUNIT_ASSERT(!check_float64("255E400"));
        CPPUNIT_ASSERT(!check_float64("255E-400"));

        CPPUNIT_ASSERT(!check_float64("1.8E+308"));
        CPPUNIT_ASSERT(!check_float64("-1.8E+308"));
        CPPUNIT_ASSERT(!check_float64("2.0E-308"));
        CPPUNIT_ASSERT(!check_float64("-2.0E-308"));
    }
};

CPPUNIT_TEST_SUITE_REGISTRATION (parserUtilTest);

int main(int argc, char*argv[])
{
    GetOpt getopt(argc, argv, "dh");
    int option_char;

    while ((option_char = getopt()) != -1)
        switch (option_char) {
        case 'd':
            debug = 1;  // debug is a static global
            break;
        case 'h': {     // help - show test names
            cerr << "Usage: parserUtilTest has the following tests:" << endl;
            const std::vector<Test*> &tests = parserUtilTest::suite()->getTests();
            unsigned int prefix_len = parserUtilTest::suite()->getName().append("::").length();
            for (std::vector<Test*>::const_iterator i = tests.begin(), e = tests.end(); i != e; ++i) {
                cerr << (*i)->getName().replace(0, prefix_len, "") << endl;
            }
            break;
        }
        default:
            break;
        }

    CppUnit::TextTestRunner runner;
    runner.addTest(CppUnit::TestFactoryRegistry::getRegistry().makeTest());

    bool wasSuccessful = true;
    string test = "";
    int i = getopt.optind;
    if (i == argc) {
        // run them all
        wasSuccessful = runner.run("");
    }
    else {
        for (; i < argc; ++i) {
            if (debug) cerr << "Running " << argv[i] << std::endl;
            test = parserUtilTest::suite()->getName().append("::").append(argv[i]);
            wasSuccessful = wasSuccessful && runner.run(test);
        }
    }

    return wasSuccessful ? 0 : 1;
}