### Question:
XsltConverter implements Converter<String> { public boolean isXsltAttribute(String file) { boolean xslt = false; if (file != null && !file.trim().isEmpty()) { xslt = file.toLowerCase().startsWith(XSLT_PREFIX); } return xslt; }  boolean isXsltAttribute(String file); @Override String convert(String file, Type type); @Override String convertToString(String file); @Override String allowedPattern(Type type); static File getFile(String filePath);  }### Answer:
@Test public void testIsXsltAttribute() { Assert.assertTrue(new XsltConverter().isXsltAttribute("xslt(foo, bar)")); Assert.assertFalse(new XsltConverter().isXsltAttribute("xslt/foo.xml")); Assert.assertFalse(new XsltConverter().isXsltAttribute("foo/bar.xml")); Assert.assertFalse(new XsltConverter().isXsltAttribute(null)); }