package org.codehaus.modello.verifier;
   
   /*
    * Copyright (c) 2004, Codehaus.org
    *
    * Permission is hereby granted, free of charge, to any person obtaining a copy of
    * this software and associated documentation files (the "Software"), to deal in
    * the Software without restriction, including without limitation the rights to
    * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
   * of the Software, and to permit persons to whom the Software is furnished to do
   * so, subject to the following conditions:
   *
   * The above copyright notice and this permission notice shall be included in all
   * copies or substantial portions of the Software.
   *
   * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
   * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
   * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
   * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
   * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
   * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
   * SOFTWARE.
   */
  
  import java.io.File;
  import java.io.IOException;
  import java.io.Reader;
  import java.lang.reflect.Method;
  
  import org.codehaus.plexus.util.xml.XmlStreamReader;
  
  import static org.junit.Assert.assertEquals;
  import static org.junit.Assert.assertTrue;
  import static org.junit.Assert.fail;
  
  public abstract class Verifier {
      public abstract void verify() throws Throwable;
  
      protected File getTestFile(String name) {
          String basedir = System.getProperty("basedir", new File("").getAbsolutePath());
  
          return new File(basedir, name);
      }
  
      protected String getTestPath(String name) {
          String basedir = System.getProperty("basedir", new File("").getAbsolutePath());
  
          return new File(basedir, name).getAbsolutePath();
      }
  
      protected Reader getXmlResourceReader(String name) throws IOException {
          return new XmlStreamReader(getClass().getResourceAsStream(name));
      }
  
      protected void assertReader(Class<?> reader, Class<?> model, Class<?> input, Class<?> exception) {
          Method read;
  
          // Model read( InputStream|Reader ) throws IOException, ?
          try {
              read = reader.getMethod("read", input);
  
              assertEquals("Bad return type of " + read, model, read.getReturnType());
  
              for (Class<?> e : read.getExceptionTypes()) {
                  assertTrue(
                          "Unexpected exception " + e.getName() + " at " + read,
                          IOException.class.equals(e) || exception.equals(e));
              }
          } catch (NoSuchMethodException e) {
              fail(e.toString());
          }
  
          // Model read( InputStream|Reader, boolean ) throws IOException, ?
          try {
              read = reader.getMethod("read", input, Boolean.TYPE);
  
              assertEquals("Bad return type of " + read, model, read.getReturnType());
  
              for (Class<?> e : read.getExceptionTypes()) {
                  assertTrue(
                          "Unexpected exception " + e.getName() + " at " + read,
                          IOException.class.equals(e) || exception.equals(e));
              }
          } catch (NoSuchMethodException e) {
              fail(e.toString());
          }
      }
  
      protected void assertWriter(Class<?> writer, Class<?> model, Class<?> output, Class<?> exception) {
          Method write;
  
          // write( OutputStream|Writer, Model ) throws IOException, ?
          try {
              write = writer.getMethod("write", output, model);
  
              for (Class<?> e : write.getExceptionTypes()) {
                  assertTrue(
                          "Unexpected exception " + e.getName() + " at " + write,
                          IOException.class.equals(e) || exception.equals(e));
             }
         } catch (NoSuchMethodException e) {
             fail(e.toString());
         }
     }
 }