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diff --git a/bundles/org.simantics.databoard/testcases/org/simantics/databoard/tests/TestFileList1.java b/bundles/org.simantics.databoard/testcases/org/simantics/databoard/tests/TestFileList1.java
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+/*******************************************************************************
+ *  Copyright (c) 2010 Association for Decentralized Information Management in
+ *  Industry THTH ry.
+ *  All rights reserved. This program and the accompanying materials
+ *  are made available under the terms of the Eclipse Public License v1.0
+ *  which accompanies this distribution, and is available at
+ *  http://www.eclipse.org/legal/epl-v10.html
+ *
+ *  Contributors:
+ *      VTT Technical Research Centre of Finland - initial API and implementation
+ *******************************************************************************/
+package org.simantics.databoard.tests;
+
+import java.io.File;
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.Iterator;
+import java.util.List;
+import java.util.ListIterator;
+
+import junit.framework.TestCase;
+
+import org.simantics.databoard.Bindings;
+import org.simantics.databoard.binding.Binding;
+import org.simantics.databoard.file.FileList;
+import org.simantics.databoard.file.IFileList;
+
+public class TestFileList1 extends TestCase {
+
+	int length = 1024*10;
+
+	String[] data1array;
+	List<String> data1list;
+	IFileList<String> data1file;	
+	Binding data1binding = Bindings.getBindingUnchecked(String.class);
+	
+	public void setUp() 
+	throws Exception {
+		data1array = new String[length];
+		data1list = new ArrayList<String>(length); 
+		for (int i=0; i<length; i++)
+		{
+			String s = "Line "+(i+1);
+			data1array[i] = s;
+			data1list.add( s );			
+		}
+		
+		data1file = new FileList<String>(File.createTempFile("Tmp", ".tmp"), String.class);
+		data1file.getFile().deleteOnExit();
+	}
+	
+	public void tearDown() 
+	throws Exception 
+	{	    
+		data1file.close();		
+	}
+	
+	public void testAppend() 
+	throws Exception
+	{		
+		// Write
+		data1file.addAll(data1list);
+		assertEquals(length, data1file.size());
+		// Read-Verify
+		int i=0;
+		for (String line : data1file)
+			assertEquals(data1array[i++], line);
+	}
+	
+	public void testClear()
+	throws Exception
+	{
+		// Write
+		data1file.addAll(data1list);
+		assertFalse(data1file.isEmpty());
+		assertEquals(length, data1file.size());
+		// Clear all
+		data1file.clear();
+		assertTrue(data1file.isEmpty());
+		assertEquals(0, data1file.size());
+		// Check that file size has truncated
+		assertTrue(data1file.getFile().length()<1024);
+	}
+	
+	public void testRemove()
+	throws Exception
+	{
+		data1file.addAll(data1list);
+
+		for (int i=0; i<length; i++)
+			assertEquals(data1array[i], data1file.get(i));
+		
+		// remove 10 elements, one by one
+		for (int i=0; i<10; i++) {
+			data1file.remove(10);
+			assertEquals(length-i-1, data1file.size());
+		}
+		
+		// check data looks sane
+		for (int i=0; i<10; i++)
+			assertEquals(data1array[i], data1file.get(i));
+		for (int i=20; i<length; i++) {
+			if (i==923) 
+				System.out.println("x");
+			Object x = data1file.get(i-10);			
+			Object expected = data1file.get(i-10);
+			assertEquals(expected, x);
+		}
+	
+	}
+	
+	public void testInsertAll()
+	throws Exception
+	{
+		data1file.addAll(data1list);
+		data1file.addAll(0, data1list);
+		for (int i=0; i<length; i++)
+			assertEquals(data1array[i], data1file.get(i));
+		for (int i=0; i<length; i++)
+			assertEquals(data1array[i], data1file.get(i+length));
+	}
+	
+	public void testSetAll()
+	throws Exception
+	{		
+		List<String> data2 = new ArrayList<String>();
+		for (int i=0; i<500; i++)
+			data2.add( "XYZabc-??-#"+(i+1000000) );
+	
+		data1file.clear();
+		((FileList<String>)data1file).setAll(data2);
+
+		assertEquals(data1file.size(), data2.size());
+		for (int i=0; i<data2.size(); i++)
+			assertEquals(data2.get(i), data1file.get(i));
+		
+		((FileList<String>)data1file).setAll(data1list);
+
+		assertEquals(data1file.size(), data1list.size());
+		for (int i=0; i<data1list.size(); i++)
+			assertEquals(data1list.get(i), data1file.get(i));		
+	}
+	
+	public void testInsert()
+	throws Exception
+	{
+		data1file.addAll(data1list);
+		
+		// int 10 elements, one by one
+		for (int i=0; i<10; i++) {
+			data1file.add(10+i, "XXX"+i);
+			assertEquals(length+i+1, data1file.size());
+		}
+		
+		// check data looks sane
+		for (int i=0; i<10; i++)
+			assertEquals(data1array[i], data1file.get(i));
+		for (int i=0; i<10; i++)
+			assertEquals("XXX"+i, data1file.get(i+10));
+		for (int i=20; i<length-10; i++)
+			assertEquals(data1array[i+10], data1file.get(i+20));		
+	}
+	
+	public void testIterator()
+	throws Exception
+	{
+		data1file.addAll(data1list);
+
+		Iterator<String> iter = data1file.iterator();
+		int i=0;
+		while (iter.hasNext())
+			assertEquals(data1array[i++], iter.next());
+		
+		i=100;
+		ListIterator<String> li = data1file.listIterator(100);
+		while (li.hasNext()) {
+			assertEquals(li.nextIndex(), i);
+			assertEquals(data1array[i++], li.next());
+		}
+		assertTrue(i==length);
+		
+		i = data1file.size();
+		li = data1file.listIterator(i);
+		while (li.hasPrevious()) {
+			--i;
+			assertEquals(li.previousIndex(), i);
+			assertEquals(data1array[i], li.previous());
+		}
+		
+		// Change to smaller objects 
+		li = data1file.listIterator();
+		while (li.hasNext()) {
+			li.next();
+			li.set("XXX"+li.nextIndex());
+		}
+		// Verify		
+		li = data1file.listIterator(0);
+		while (li.hasNext()) {
+			String value = li.next();
+			assertEquals("XXX"+li.nextIndex(), value);
+		}		
+
+		// Change to larger objects 
+		li = data1file.listIterator();
+		while (li.hasNext()) {
+			li.next();
+			li.set("ABCDEFG "+li.nextIndex());
+		}
+		
+		// Verify
+		li = data1file.listIterator(0);
+		while (li.hasNext()) {
+			String value = li.next();
+			assertEquals("ABCDEFG "+li.nextIndex(), value);
+		}		
+	}
+	
+	public void testIndexOf() 
+	throws Exception
+	{
+		data1file.addAll(data1list);
+
+		assertEquals(2, data1file.indexOf("Line 3"));
+		assertEquals(99, data1file.lastIndexOf("Line 100"));
+		assertEquals(-1, data1file.indexOf("xyz"));
+		assertEquals(-1, data1file.lastIndexOf("xyz"));
+	}
+	
+	public void testContains()
+	throws Exception
+	{
+		data1file.addAll(data1list);
+		assertTrue( data1file.contains("Line 5") );
+		assertTrue( data1file.contains("Line 50") );
+		assertFalse( data1file.contains("line 5") );
+	}
+	
+	public void testSubList()
+	throws Exception
+	{
+		data1file.addAll(data1list);
+		List<String> subList = data1file.subList(10, 110);
+		assertEquals(100, subList.size());
+		for (int i=0; i<100; i++)
+			assertEquals(data1array[i+10], subList.get(i));
+	}
+	
+	public void testToArray()
+	throws Exception
+	{
+		data1file.addAll(data1list);
+		String[] array = data1file.toArray(new String[0]);
+		assertTrue( Arrays.equals(array, data1array) );
+	}
+		
+	public void testOpen()
+	throws Exception
+	{
+		File file = data1file.getFile();
+		data1file.addAll(data1list);
+		data1file.close();
+		data1file = new FileList<String>(file, String.class); 
+		
+		for (int i=0; i<length; i++)
+			assertEquals(data1array[i], data1file.get(i));		
+	}
+
+}
+