### Question:
MatchRatingApproachEncoder implements StringEncoder { String removeAccents(final String accentedWord) { if (accentedWord == null) { return null; } final StringBuilder sb = new StringBuilder(); final int n = accentedWord.length(); for (int i = 0; i < n; i++) { final char c = accentedWord.charAt(i); final int pos = UNICODE.indexOf(c); if (pos > -1) { sb.append(PLAIN_ASCII.charAt(pos)); } else { sb.append(c); } } return sb.toString(); }  @Override final Object encode(final Object pObject); @Override final String encode(String name); boolean isEncodeEquals(String name1, String name2);  }### Answer:
@Test public final void testAccentRemoval_AllLower_SuccessfullyRemoved() { assertEquals("aeiou", this.getStringEncoder().removeAccents("áéíóú")); }
@Test public final void testAccentRemoval_WithSpaces_SuccessfullyRemovedAndSpacesInvariant() { assertEquals("ae io u", this.getStringEncoder().removeAccents("áé íó ú")); }
@Test public final void testAccentRemoval_UpperandLower_SuccessfullyRemovedAndCaseInvariant() { assertEquals("AeiOuu", this.getStringEncoder().removeAccents("ÁeíÓuu")); }
@Test public final void testAccentRemoval_MixedWithUnusualChars_SuccessfullyRemovedAndUnusualcharactersInvariant() { assertEquals("A-e'i.,o&u", this.getStringEncoder().removeAccents("Á-e'í.,ó&ú")); }
@Test public final void testAccentRemoval_ComprehensiveAccentMix_AllSuccessfullyRemoved() { assertEquals("E,E,E,E,U,U,I,I,A,A,O,e,e,e,e,u,u,i,i,a,a,o,c", this.getStringEncoder().removeAccents("È,É,Ê,Ë,Û,Ù,Ï,Î,À,Â,Ô,è,é,ê,ë,û,ù,ï,î,à,â,ô,ç")); }
@Test public final void testAccentRemovalNormalString_NoChange() { assertEquals("Colorless green ideas sleep furiously", this.getStringEncoder().removeAccents("Colorless green ideas sleep furiously")); }
@Test public final void testAccentRemoval_NINO_NoChange() { assertEquals("", this.getStringEncoder().removeAccents("")); }
@Test public final void testAccentRemoval_NullValue_ReturnNullSuccessfully() { assertEquals(null, this.getStringEncoder().removeAccents(null)); }