Improving code coverage

git-svn-id: https://svn.apache.org/repos/asf/commons/proper/codec/trunk@794525 13f79535-47bb-0310-9956-ffa450edef68

Author: hen

src/test/org/apache/commons/codec/digest/DigestUtilsTest.java

@@ -157,4 +157,8 @@ public void testShaHex() throws IOException {
                 DigestUtils.shaHex(new ByteArrayInputStream(testData)));
 
     }    
+
+    public void testConstructable() {
+        new DigestUtils();
+    }
 }

src/test/org/apache/commons/codec/language/CaverphoneTest.java

@@ -59,4 +59,10 @@ public void testSpecificationExamples() {
         }
     }
 
+    public void testIsCaverphoneEquals() {
+        Caverphone caverphone = new Caverphone();
+        assertFalse("Caverphone encodings should not be equal", caverphone.isCaverphoneEqual("Peter", "Stevenson"));
+        assertTrue("Caverphone encodings should be equal", caverphone.isCaverphoneEqual("Peter", "Peady"));
+    }
+
 }

src/test/org/apache/commons/codec/language/SoundexTest.java

@@ -400,4 +400,14 @@ public void testNewInstance2() {
     public void testNewInstance3() {
         assertEquals("W452", new Soundex(Soundex.US_ENGLISH_MAPPING_STRING).soundex("Williams"));
     }
+
+    public void testSoundexUtilsNullBehaviour() {
+        assertEquals(null, SoundexUtils.clean(null));
+        assertEquals("", SoundexUtils.clean(""));
+        assertEquals(0, SoundexUtils.differenceEncoded(null, ""));
+        assertEquals(0, SoundexUtils.differenceEncoded("", null));
+    }
+    public void testSoundexUtilsConstructable() {
+        new SoundexUtils();
+    }
 }