### Question:
ScanlineValueIntReader implements BandReader { @Override public String getBandUnit() { return null; } ScanlineValueIntReader(MetopFile metopFile, ImageInputStream inputStream, ScanlineBandDescription description); @Override String getBandName(); @Override String getBandUnit(); @Override String getBandDescription(); @Override double getScalingFactor(); @Override int getDataType(); @Override void readBandRasterData(int sourceOffsetX, int sourceOffsetY, int sourceWidth, int sourceHeight, int sourceStepX, int sourceStepY, ProductData destBuffer, ProgressMonitor pm);  }### Answer:
@Test public void testGetBandUnit() { assertNull(reader.getBandUnit()); }