add one boundary test

tests/Boundary/swen90006/passbook/BoundaryTests.java

@@ -14,6 +14,31 @@ import static org.junit.Assert.*;
 public class BoundaryTests
     extends PartitioningTests
 {
+	
+    @Test public void WeakPassphraseException() throws DuplicateUserException {
+        boolean WeakPassphraseException = false;
+        String passbookUsername = "AlexTina";
+        String passbookphrase = "123Abcde";
+        try{
+            pb.addUser(passbookUsername,passbookphrase);
+        }catch(WeakPassphraseException e){
+            WeakPassphraseException = true;
+        }
+        assertFalse(WeakPassphraseException);
+    }
+
+    //Test on point 7
+    @Test public void WeakPassphraseException2() throws DuplicateUserException {
+        boolean WeakPassphraseException = false;
+        String passbookUsername = "AlexTina";
+        String passbookphrase = "123ABCd";
+        try{
+            pb.addUser(passbookUsername,passbookphrase);
+        }catch(WeakPassphraseException e){
+            WeakPassphraseException = true;
+        }
+        assertTrue(WeakPassphraseException);
+    }
     //Add another test
     @Test public void anotherTEst()
     {