Migrated source code from Simantics SVN

[simantics/platform.git] / bundles / org.simantics.databoard / testcases / org / simantics / databoard / tests / testFileUtil.java

diff --git a/bundles/org.simantics.databoard/testcases/org/simantics/databoard/tests/testFileUtil.java b/bundles/org.simantics.databoard/testcases/org/simantics/databoard/tests/testFileUtil.java
new file mode 100644 (file)
index 0000000..36e47fe
--- /dev/null
+++ b/bundles/org.simantics.databoard/testcases/org/simantics/databoard/tests/testFileUtil.java
@@ -0,0 +1,111 @@
+/*******************************************************************************\r
+ *  Copyright (c) 2010 Association for Decentralized Information Management in\r
+ *  Industry THTH ry.\r
+ *  All rights reserved. This program and the accompanying materials\r
+ *  are made available under the terms of the Eclipse Public License v1.0\r
+ *  which accompanies this distribution, and is available at\r
+ *  http://www.eclipse.org/legal/epl-v10.html\r
+ *\r
+ *  Contributors:\r
+ *      VTT Technical Research Centre of Finland - initial API and implementation\r
+ *******************************************************************************/\r
+package org.simantics.databoard.tests;
+
+import java.io.File;\r
+import java.io.IOException;\r
+import java.io.RandomAccessFile;\r
+\r
+import junit.framework.TestCase;\r
+\r
+import org.simantics.databoard.util.binary.BinaryFile;\r
+
+public class testFileUtil extends TestCase {
+
+       
+       public void testInsertRemove()
+       throws IOException
+       {
+               File tmp1 = File.createTempFile("tmp", "tmp");
+               tmp1.deleteOnExit();
+               
+               RandomAccessFile file = new RandomAccessFile(tmp1, "rw");
+               
+               // Write 4 MB file
+               BinaryFile write = new BinaryFile(file);
+               for (int i=0; i<1024*1024; i++)
+               {
+                       write.writeInt(i ^0x53);
+               }
+               write.flush();
+               write.close();
+
+               int iterCount = 16;
+               long totInsertTime = 0;
+               long totRemoveTime = 0;
+               
+               for (int iter=0; iter<iterCount; iter++) {
+               // Verify content
+               // 1. half
+               file = new RandomAccessFile(tmp1, "rw");\r
+               BinaryFile read = new BinaryFile(file);         
+               read.position(0);
+               for (int i=0; i<1024*1024; i++)
+                       assertEquals(i^0x53, read.readInt());
+               read.close();\r
+               file.close();
+               
+               // Add 256 kb at 2MB
+               System.gc();
+               long startTime = System.currentTimeMillis();
+               file = new RandomAccessFile(tmp1, "rw");\r
+               BinaryFile.insertBytes(file, 512*1024*4, 256*1024);
+               long elapsedTime = System.currentTimeMillis() - startTime;
+               totInsertTime += elapsedTime;
+               System.out.println("Insert 256kb in front of 2MB, time: "+elapsedTime);
+               
+               // Verify file size
+               assertEquals(4*1024*1024 + 256*1024, file.length());
+               
+               // Verify content
+               // 1. half
+               read = new BinaryFile(file);            
+               read.position(0);
+               for (int i=0; i<512*1024; i++)
+                       assertEquals(i^0x53, read.readInt());
+               // 2. half
+               read.position(512*1024*4+256*1024);
+               for (int i=512*1024; i<1024*1024; i++)
+                       assertEquals(i^0x53, read.readInt());
+               read.close();\r
+               file.close();
+
+               // Remove content
+               file = new RandomAccessFile(tmp1, "rw");\r
+               System.gc();
+               startTime = System.currentTimeMillis();
+               BinaryFile.removeBytes(file, 512*1024*4, 256*1024);
+               elapsedTime = System.currentTimeMillis() - startTime;
+               totRemoveTime += elapsedTime;
+               System.out.println("remove 256kb in front of 2,25MB, time: "+elapsedTime);
+               
+               // Verify file size
+               assertEquals(4*1024*1024, file.length());
+               
+               // Verify content
+               // 1. half
+               read = new BinaryFile(file);            
+               read.position(0);
+               for (int i=0; i<1024*1024; i++)
+                       assertEquals(i^0x53, read.readInt());
+               read.close();           
+               }
+
+               System.out.println("Average insert time: " + totInsertTime / iterCount);
+               System.out.println("Average remove time: " + totRemoveTime / iterCount);
+               
+               tmp1.delete();
+       }
+       
+       
+}
+