Bug 183918 get relative file path of linkage library
model/org.eclipse.birt.report.model.tests/test/org/eclipse/birt/report/model/library/DesignLoadLibraryTest.java
assertTrue( libHandle.getFileName( ).endsWith( "Library_1.xml" ) ); 
		
		designHandle.getCommandStack( ).redo( );
		assertEquals( 2, designHandle.getAllLibraries( ).size( ) );
	}
	/**
	 * Tests shifting library. The design file includes three libraries, each of
	 * which has style named "style1"
	 * <ul>
	 * <li>style1 in Lib1 has color with the value, "red"
	 * <li>style1 in Lib2 has color with the value, "green"
	 * <li>style1 in Lib3 has color with the value, "yellow"
	 * </ul>
	 * 
	 * 
	 * @throws Exception
	 *             if any exception
	 */
	public void testShiftLibraryWithoutShifting( ) throws Exception
	{
		openDesign( "DesignWithThreeLibrary.xml" ); 
		LabelHandle label = (LabelHandle) designHandle.findElement( "myLabel" ); 
		assertEquals( "yellow", label.getColorProperty( Style.COLOR_PROP ) 
				.getStringValue( ) );
		final LibraryHandle library1 = (LibraryHandle) designHandle
				.getAllLibraries( ).get( 0 );
		assertEquals( "Lib1", library1.getNamespace( ) ); 
		final LibraryHandle library2 = (LibraryHandle) designHandle
				.getAllLibraries( ).get( 1 );
		assertEquals( "Library_2", library2.getNamespace( ) );