// ***************************************************************** -*- C++ -*-
/*
 * Copyright (C) 2004-2021 Exiv2 authors
 * This program is part of the Exiv2 distribution.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 *
 * This program 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 General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, 5th Floor, Boston, MA 02110-1301 USA.
 */

#include <exiv2/exiv2.hpp>

#include <gtest/gtest.h>

using namespace Exiv2;

// The tests corrispond to those in issue https://github.com/Exiv2/exiv2/issues/1481


// 1. No language value
TEST(LangAltValueReadTest, noLangugeValBeforeSpace)
{
    XmpParser::initialize();
    ::atexit(XmpParser::terminate);
 
    Exiv2::XmpData xmpData;
    try {
        xmpData["Xmp.dc.title"] = "lang= test1-1";
    }
    catch (AnyError& e) {
        ASSERT_EQ(e.code(),Exiv2::kerInvalidLangAltValue);
    }
    catch (...) {
        ASSERT_TRUE(false);
    }
}

TEST(LangAltValueReadTest, quoteThenNoLangugeValBeforeSpace)
{
    XmpParser::initialize();
    ::atexit(XmpParser::terminate);
 
    Exiv2::XmpData xmpData;
    try {
        xmpData["Xmp.dc.title"] = "lang=\" test1-2";
    }
    catch (AnyError& e) {
        ASSERT_EQ(e.code(),Exiv2::kerInvalidLangAltValue);
    }
    catch (...) {
        ASSERT_TRUE(false);
    }
}

// 2. Empty language value
TEST(LangAltValueReadTest, emptyDoubleQuotesLanguageValBeforeSpace)
{
    XmpParser::initialize();
    ::atexit(XmpParser::terminate);
 
    Exiv2::XmpData xmpData;
    try {
        xmpData["Xmp.dc.title"] = "lang=\"\" test2";
    }
    catch (AnyError& e) {
        ASSERT_EQ(e.code(),Exiv2::kerInvalidLangAltValue);
    }
    catch (...) {
        ASSERT_TRUE(false);
    }
}

// 3. Mismatched and/or incorrect positioning of quotation marks
TEST(LangAltValueReadTest, emptyDoubleQuotesLanguageValNoSpace)
{
    XmpParser::initialize();
    ::atexit(XmpParser::terminate);
 
    Exiv2::XmpData xmpData;
    try {
        xmpData["Xmp.dc.title"] = "lang=\"\"test3-1";
    }
    catch (AnyError& e) {
        ASSERT_EQ(e.code(),Exiv2::kerInvalidLangAltValue);
    }
    catch (...) {
        ASSERT_TRUE(false);
    }
}

TEST(LangAltValueReadTest, oneDoubleQuotesLanguageValNoSpace)
{
    XmpParser::initialize();
    ::atexit(XmpParser::terminate);
 
    Exiv2::XmpData xmpData;
    try {
        xmpData["Xmp.dc.title"] = "lang=\"test3-2";
    }
    catch (AnyError& e) {
        ASSERT_EQ(e.code(),Exiv2::kerInvalidLangAltValue);
    }
    catch (...) {
        ASSERT_TRUE(false);
    }
}

TEST(LangAltValueReadTest, oneDoubleQuotesLanguageValBeforeSpace)
{
    XmpParser::initialize();
    ::atexit(XmpParser::terminate);
 
    Exiv2::XmpData xmpData;
    try {
        xmpData["Xmp.dc.title"] = "lang=\"en-UK test3-3";
    }
    catch (AnyError& e) {
        ASSERT_EQ(e.code(),Exiv2::kerInvalidLangAltValue);
    }
    catch (...) {
        ASSERT_TRUE(false);
    }
}

TEST(LangAltValueReadTest, languageValOneDoubleQuotesBeforeSpace)
{
    XmpParser::initialize();
    ::atexit(XmpParser::terminate);
 
    Exiv2::XmpData xmpData;
    try {
        xmpData["Xmp.dc.title"] = "lang=en-US\" test3-4";
    }
    catch (AnyError& e) {
        ASSERT_EQ(e.code(),Exiv2::kerInvalidLangAltValue);
    }
    catch (...) {
        ASSERT_TRUE(false);
    }
}

TEST(LangAltValueReadTest, languageValOneDoubleQuotesNoSpace)
{
    XmpParser::initialize();
    ::atexit(XmpParser::terminate);
 
    Exiv2::XmpData xmpData;
    try {
        xmpData["Xmp.dc.title"] = "lang=test3-5\"";
    }
    catch (AnyError& e) {
        ASSERT_EQ(e.code(),Exiv2::kerInvalidLangAltValue);
    }
    catch (...) {
        ASSERT_TRUE(false);
    }
}

TEST(LangAltValueReadTest, languageValTwoDoubleQuotesNoSpace)
{
    XmpParser::initialize();
    ::atexit(XmpParser::terminate);
 
    Exiv2::XmpData xmpData;
    try {
        xmpData["Xmp.dc.title"] = "lang=test3-6\"\"";
    }
    catch (AnyError& e) {
        ASSERT_EQ(e.code(),Exiv2::kerInvalidLangAltValue);
    }
    catch (...) {
        ASSERT_TRUE(false);
    }
}

// 4. Invalid characters in language part
TEST(LangAltValueReadTest, languageValExtraHyphenBeforeSpace)
{
    XmpParser::initialize();
    ::atexit(XmpParser::terminate);
 
    Exiv2::XmpData xmpData;
    try {
        xmpData["Xmp.dc.title"] = "lang=en-UK- test4-1";
    }
    catch (AnyError& e) {
        ASSERT_EQ(e.code(),Exiv2::kerInvalidLangAltValue);
    }
    catch (...) {
        ASSERT_TRUE(false);
    }
}

TEST(LangAltValueReadTest, languageValWithInvalidCharBeforeSpace)
{
    XmpParser::initialize();
    ::atexit(XmpParser::terminate);
 
    Exiv2::XmpData xmpData;
    try {
        xmpData["Xmp.dc.title"] = "lang=en=UK test4-2";
    }
    catch (AnyError& e) {
        ASSERT_EQ(e.code(),Exiv2::kerInvalidLangAltValue);
    }
    catch (...) {
        ASSERT_TRUE(false);
    }
}