### Question:
HTMLDataTypeRepresentation { public String getHTMLString() { return HTML_OPEN + originalHTMLData + HTML_CLOSE; } protected  HTMLDataTypeRepresentation(); protected  HTMLDataTypeRepresentation(String htmlText); String getHTMLString(); String getHTMLContentString(); abstract HTMLDataTypeRepresentation[] diff(
			HTMLDataTypeRepresentation otherRepresentation);  }### Answer:
@Test public void testFunction_UnnamedArgument() { FunctionDefinitionDataType function = new FunctionDefinitionDataType("myFunction"); String nullName = null; ParameterDefinition param1 = new ParameterDefinitionImpl(nullName, new ByteDataType(), ""); ParameterDefinition[] variables = new ParameterDefinition[] { param1 }; function.setArguments(variables); function.setReturnType(new VoidDataType()); HTMLDataTypeRepresentation rep = ToolTipUtils.getHTMLRepresentation(function); String html = rep.getHTMLString(); String paramText = getParamText(html); assertEquals("byte", paramText); }