/* Copyright 2002-2022 CS GROUP
    * Licensed to CS GROUP (CS) under one or more
    * contributor license agreements.  See the NOTICE file distributed with
    * this work for additional information regarding copyright ownership.
    * CS 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.orekit.files.ccsds.utils.lexical;
  
  import org.junit.Assert;
  import org.junit.Test;
  import org.orekit.data.DataSource;
  import org.orekit.errors.OrekitException;
  import org.orekit.errors.OrekitMessages;
  import org.orekit.files.ccsds.ndm.ParserBuilder;
  
  public class XmlLexicalAnalyzerTest {
  
      @Test
      public void testNullBinary() {
          XmlLexicalAnalyzer la = new XmlLexicalAnalyzer(new DataSource("empty", (DataSource.StreamOpener) () -> null));
          try {
              la.accept(new ParserBuilder().buildOcmParser());
              Assert.fail("an exception should have been thrown");
          } catch (OrekitException oe) {
              Assert.assertEquals(OrekitMessages.UNABLE_TO_FIND_FILE, oe.getSpecifier());
              Assert.assertEquals("empty", oe.getParts()[0]);
          }
      }
  
      @Test
      public void testNullCharacter() {
          XmlLexicalAnalyzer la = new XmlLexicalAnalyzer(new DataSource("empty", (DataSource.ReaderOpener) () -> null));
          try {
              la.accept(new ParserBuilder().buildOcmParser());
              Assert.fail("an exception should have been thrown");
          } catch (OrekitException oe) {
              Assert.assertEquals(OrekitMessages.UNABLE_TO_FIND_FILE, oe.getSpecifier());
              Assert.assertEquals("empty", oe.getParts()[0]);
          }
      }
  
  }