### Question:
RefinedSoundex implements StringEncoder { @Override public Object encode(final Object obj) throws EncoderException { if (!(obj instanceof String)) { throw new EncoderException("Parameter supplied to RefinedSoundex encode is not of type java.lang.String"); } return soundex((String) obj); } RefinedSoundex();  RefinedSoundex(final char[] mapping);  RefinedSoundex(final String mapping); int difference(final String s1, final String s2); @Override Object encode(final Object obj); @Override String encode(final String str); String soundex(String str); static final String US_ENGLISH_MAPPING_STRING; static final RefinedSoundex US_ENGLISH; }### Answer:
@Test public void testEncode() { assertEquals("T6036084", this.getStringEncoder().encode("testing")); assertEquals("T6036084", this.getStringEncoder().encode("TESTING")); assertEquals("T60", this.getStringEncoder().encode("The")); assertEquals("Q503", this.getStringEncoder().encode("quick")); assertEquals("B1908", this.getStringEncoder().encode("brown")); assertEquals("F205", this.getStringEncoder().encode("fox")); assertEquals("J408106", this.getStringEncoder().encode("jumped")); assertEquals("O0209", this.getStringEncoder().encode("over")); assertEquals("T60", this.getStringEncoder().encode("the")); assertEquals("L7050", this.getStringEncoder().encode("lazy")); assertEquals("D6043", this.getStringEncoder().encode("dogs")); assertEquals("D6043", RefinedSoundex.US_ENGLISH.encode("dogs")); }