### Question:
CommandLineParser { public String getUsage() throws TransformerException, IOException { try (ByteArrayOutputStream baos = new ByteArrayOutputStream(); InputStream in = getClass().getResourceAsStream("usage.xsl")) { toolspec.transform(in, baos); return baos.toString(); } } CommandLineParser(ToolSpec ts); void setToolSpec(ToolSpec ts); static String[] getArgsFromString(String s); CommandDocument parseArguments(String args); CommandDocument parseArguments(String[] args); void throwUsage(ErrorVisitor errors); String getUsage(); String getDetailedUsage(); String getFormattedDetailedUsage(); String getDetailedUsage(String id); String getToolUsage();  }### Answer:
@Test public void testUsage() throws Exception { String usage = "[ -n <C++ Namespace> ] [ -impl ] [ -e <Enum Value> ] -r " + "[ -p <[wsdl namespace =]Package Name> ]* [ -? ] [ -v ] <wsdlurl> "; String pUsage = parser.getUsage(); if (isQuolifiedVersion()) { assertEquals("This test failed in the xerces version above 2.7.1 or the version with JDK ", usage, pUsage); } else { usage = "[ -n <C++ Namespace> ] [ -impl ] [ -e <Enum Value> ] -r " + "-p <[wsdl namespace =]Package Name>* [ -? ] [ -v ] <wsdlurl>"; assertEquals("This test failed in the xerces version below 2.7.1", usage.trim(), pUsage.trim()); } }