### Question:
CharFilter extends HashMap<String, String> { public String translate(String s) { String r = compatibility ? StringNormalizer.compatible(s) : StringNormalizer.composed(s); for (Map.Entry<String, String> entry : entrySet()) { r = r.replaceAll(entry.getKey(), entry.getValue()); } return r; } CharFilter();  CharFilter(boolean compatibility, File file);  CharFilter(boolean compatibility);  CharFilter(boolean compatibility, Map<String, String> source);  CharFilter(File file); final void addFilter(File file); void addCSV(BufferedReader reader); void setCompatibility(boolean compatibility); String translate(String s); CharSequence toCharSequence(File file); void translate(File infile, File outfile); void translate(File file);  }### Answer:
@Test public void testTranslate_String() throws URISyntaxException { System.out.println("translate"); URL resourceUrl = getClass().getResource("/UnicodeCharEquivalences.txt"); File file = new File(resourceUrl.toURI()); CharFilter filter = new CharFilter(file); String s = "a\u0133"; String expResult = "aij"; String result = filter.translate(s); assertEquals(expResult.length(), result.length()); assertEquals(expResult, result); }