[Java] Assert that included type is available via XInclude. PR aeron-io#649.

Author: mjpt777

sbe-tool/src/test/java/uk/co/real_logic/sbe/xml/RelativeXIncludeTest.java

@@ -18,9 +18,11 @@
 import java.io.File;
 import java.net.URL;
 
+import org.junit.Assert;
 import org.junit.Test;
 
 import org.xml.sax.InputSource;
+
 import static uk.co.real_logic.sbe.xml.XmlSchemaParser.parse;
 
 public class RelativeXIncludeTest
@@ -29,12 +31,14 @@ public class RelativeXIncludeTest
  public void shouldParseFileInSubDir()
  throws Exception
  {
- final ClassLoader classLoader = getClass().getClassLoader();
- final URL testResource = classLoader.getResource("sub/basic-schema.xml");
- final InputSource is = new InputSource(testResource.openStream());
+ final URL testResource = getClass().getClassLoader().getResource("sub/basic-schema.xml");
+ Assert.assertNotNull(testResource);
 
+ final InputSource is = new InputSource(testResource.openStream());
  final File file = new File(testResource.getFile());
  is.setSystemId(file.toPath().toAbsolutePath().getParent().toUri().toString());
- parse(is, ParserOptions.DEFAULT);
+ final MessageSchema messageSchema = parse(is, ParserOptions.DEFAULT);
+
+ Assert.assertNotNull(messageSchema.getType("Symbol"));
  }
 }