hamming: update test suite (#1154)

* hamming: update test suite

* Empty commit

* code change

exercises/hamming/.meta/version

@@ -1 +1 @@
-1.1.0
+2.0.1

exercises/hamming/src/test/java/HammingTest.java

@@ -5,6 +5,7 @@ import org.junit.rules.ExpectedException;
 
 import static org.junit.Assert.assertEquals;
 
+
 public class HammingTest {
 
     @Rule
@@ -60,13 +61,13 @@ public class HammingTest {
     @Ignore("Remove to run test")
     @Test
     public void testNonUniqueCharacterInFirstStrand() {
-        assertEquals(1, new Hamming("AGA", "AGG").getHammingDistance());
+        assertEquals(1, new Hamming("AAG", "AAA").getHammingDistance());
     }
 
     @Ignore("Remove to run test")
     @Test
     public void testNonUniqueCharacterInSecondStrand() {
-        assertEquals(1, new Hamming("AGG", "AGA").getHammingDistance());
+        assertEquals(1, new Hamming("AAA", "AAG").getHammingDistance());
     }
 
     @Ignore("Remove to run test")