question: private static boolean testSpecificValue ( double x , double y , double expectedValue , double interpValue ) { logger . info ( "At coordinate (" + x + ", " + y + ") the expected value is " + expectedValue + "; the interpolated value is " + interpValue + "." ) ; boolean specificValueInterpUseful = true ; if ( interpValue > expectedValue + 1 || interpValue < expectedValue - 1 ) specificValueInterpUseful = false ; return specificValueInterpUseful ; }
target:  tests the interpolation of a specific expected or known value