### Question:
PELogUtils { public static String getBuildTag() { return values.get(IMPL_BUILDTAG); } private  PELogUtils(); static String getBuildTag(); static String getBuildNumber(); static String getBuildID(); static String getVersion(); static String getBuildTime(); static String getBuilder(); static String getBuildVersionString(boolean verbose);  }### Answer:
@Test public void getBuildTagTest() throws IOException { PatternLayoutWithHeader plwh = new PatternLayoutWithHeader(); assertTrue( plwh.getHeader().contains("Developer Build")); }