Add some testing

src/test/java/info/hkzlab/dupal/analyzer/AppTest.java

@@ -1,20 +1,31 @@
 package info.hkzlab.dupal.analyzer;
 
+import static org.junit.Assert.assertEquals;
 import static org.junit.Assert.assertTrue;
 
 import org.junit.Test;
 
+import info.hkzlab.dupal.analyzer.utilities.BitUtils;
+
 /**
  * Unit test for simple App.
  */
 public class AppTest 
 {
     /**
-     * Rigorous Test :-)
+     * Test BitUtils
      */
     @Test
-    public void shouldAnswerWithTrue()
+    public void bitUtilsShouldCorrectlyModifyBitfields()
     {
-        assertTrue( true );
+        assertEquals("0b01010101 with a selection mask 0x55 should be consolidated into 0b1111", 0x0F, BitUtils.consolidateBitField(0x55, 0x55));
+        assertEquals("0b11111111 with a selection mask 0x55 should be consolidated into 0b1111", 0x0F, BitUtils.consolidateBitField(0xFF, 0x55));
+        assertEquals("0b01010101 with a selection mask 0xAA should be consolidated into 0", 0, BitUtils.consolidateBitField(0x55, 0xAA));
+        assertEquals("0b01010101 with a selection mask 0xAA should be consolidated into 0b0101", 0x05, BitUtils.consolidateBitField(0x55, 0xF0));
+        
+        assertEquals("0b00001111 with a scatter mask 0xAA should be scattered into 0b10101010", 0xAA, BitUtils.scatterBitField(0x0F, 0xAA));
+        assertEquals("0b00001111 with a scatter mask 0x03 should be scattered into 0b00000011", 0x03, BitUtils.scatterBitField(0x0F, 0x03));
+        assertEquals("0b01010101 with a scatter mask 0x0F should be scattered into 0b00000101", 0x05, BitUtils.scatterBitField(0x55, 0x0F));
+        assertEquals("0b01011111 with a scatter mask 0xF0 should be scattered into 0b11110000", 0xF0, BitUtils.scatterBitField(0x5F, 0xF0));
     }
 }