### Question:
ParametersFromProperties implements HTTPRecordingParameters { @Override public boolean isCommonHeader(String headerName) { return m_commonHeaders.contains(headerName); } ParametersFromProperties(); @Override int getTestNumberOffset(); @Override boolean isCommonHeader(String headerName); @Override boolean isMirroredHeader(String headerName);  }### Answer:
@Test public void testIsCommonHeader() { final HTTPRecordingParameters parameters = new ParametersFromProperties(); assertTrue(parameters.isCommonHeader("Accept")); assertTrue(parameters.isCommonHeader("User-Agent")); assertTrue(parameters.isCommonHeader("faces-request")); assertFalse(parameters.isCommonHeader("If-None-Match")); assertFalse(parameters.isCommonHeader("Content-Type")); assertFalse(parameters.isCommonHeader("Bar")); }