/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to you under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.apache.logging.log4j.core.parser;

import java.nio.charset.StandardCharsets;
import org.apache.logging.log4j.core.LogEvent;
import org.junit.Before;
import org.junit.Test;

public class XmlLogEventParserTest extends LogEventParserTest {

    private XmlLogEventParser parser;

    private static final String XML =
            "<Event xmlns=\"http://logging.apache.org/log4j/2.0/events\"\n" + "       timeMillis=\"1493121664118\"\n"
                    + "       level=\"INFO\"\n"
                    + "       loggerName=\"HelloWorld\"\n"
                    + "       endOfBatch=\"false\"\n"
                    + "       thread=\"main\"\n"
                    + "       loggerFqcn=\"org.apache.logging.log4j.spi.AbstractLogger\"\n"
                    + "       threadId=\"1\"\n"
                    + "       threadPriority=\"5\">\n"
                    + "  <Instant epochSecond=\"1493121664\" nanoOfSecond=\"118000000\"/>\n"
                    + "  <Marker name=\"child\">\n"
                    + "    <Parents>\n"
                    + "      <Marker name=\"parent\">\n"
                    + "        <Parents>\n"
                    + "          <Marker name=\"grandparent\"/>\n"
                    + "        </Parents>\n"
                    + "      </Marker>\n"
                    + "    </Parents>\n"
                    + "  </Marker>\n"
                    + "  <Message>Hello, world!</Message>\n"
                    + "  <ContextMap>\n"
                    + "    <item key=\"bar\" value=\"BAR\"/>\n"
                    + "    <item key=\"foo\" value=\"FOO\"/>\n"
                    + "  </ContextMap>\n"
                    + "  <ContextStack>\n"
                    + "    <ContextStackItem>one</ContextStackItem>\n"
                    + "    <ContextStackItem>two</ContextStackItem>\n"
                    + "  </ContextStack>\n"
                    + "  <Source\n"
                    + "      class=\"logtest.Main\"\n"
                    + "      method=\"main\"\n"
                    + "      file=\"Main.java\"\n"
                    + "      line=\"29\"/>\n"
                    + "  <Thrown commonElementCount=\"0\" message=\"error message\" name=\"java.lang.RuntimeException\">\n"
                    + "    <ExtendedStackTrace>\n"
                    + "      <ExtendedStackTraceItem\n"
                    + "          class=\"logtest.Main\"\n"
                    + "          method=\"main\"\n"
                    + "          file=\"Main.java\"\n"
                    + "          line=\"29\"\n"
                    + "          exact=\"true\"\n"
                    + "          location=\"classes/\"\n"
                    + "          version=\"?\"/>\n"
                    + "    </ExtendedStackTrace>\n"
                    + "  </Thrown>\n"
                    + "</Event>";

    @Before
    public void setup() {
        parser = new XmlLogEventParser();
    }

    @Test
    public void testString() throws ParseException {
        final LogEvent logEvent = parser.parseFrom(XML);
        assertLogEvent(logEvent);
    }

    @Test(expected = ParseException.class)
    public void testStringEmpty() throws ParseException {
        parser.parseFrom("");
    }

    @Test(expected = ParseException.class)
    public void testStringInvalidXml() throws ParseException {
        parser.parseFrom("foobar");
    }

    @Test
    public void testEmptyObject() throws ParseException {
        parser.parseFrom("<Event></Event>");
    }

    @Test(expected = ParseException.class)
    public void testStringWrongPropertyType() throws ParseException {
        parser.parseFrom("<Event><Instant epochSecond=\"bar\">foobar</Instant></Event>");
    }

    @Test
    public void testTimeMillisIgnored() throws ParseException {
        parser.parseFrom("<Event><timeMillis>foobar</timeMillis></Event>");
    }

    @Test
    public void testStringIgnoreInvalidProperty() throws ParseException {
        parser.parseFrom("<Event><foo>bar</foo></Event>");
    }

    @Test
    public void testByteArray() throws ParseException {
        final LogEvent logEvent = parser.parseFrom(XML.getBytes(StandardCharsets.UTF_8));
        assertLogEvent(logEvent);
    }

    @Test
    public void testByteArrayOffsetLength() throws ParseException {
        final byte[] bytes = ("abc" + XML + "def").getBytes(StandardCharsets.UTF_8);
        final LogEvent logEvent = parser.parseFrom(bytes, 3, bytes.length - 6);
        assertLogEvent(logEvent);
    }
}
