### Question:
AlosAV2Metadata extends XmlMetadata { public int getNoDataValue() { int noData = Integer.MIN_VALUE; try { noData = Integer.parseInt(getAttributeSiblingValue(AlosAV2Constants.PATH_IMG_SPECIAL_VALUE_TEXT, AlosAV2Constants.NODATA, AlosAV2Constants.PATH_IMG_SPECIAL_VALUE_INDEX, Integer.toString(Integer.MIN_VALUE))); } catch (NumberFormatException e) { warn(MISSING_ELEMENT_WARNING, AlosAV2Constants.NODATA); } return noData; } AlosAV2Metadata(String name); @Override String getFileName(); @Override String getProductName(); @Override String getProductDescription(); @Override String getFormatName(); @Override String getMetadataProfile(); @Override int getRasterWidth(); @Override int getRasterHeight(); @Override String[] getRasterFileNames(); @Override ProductData.UTC getProductStartTime(); @Override ProductData.UTC getProductEndTime(); String[] getBandNames(); Map<String, String> getBandUnits(); @Override int getNumBands(); int getNoDataValue(); Color getNoDataColor(); int getSaturatedPixelValue(); Color getSaturatedColor(); ProductData.UTC getCenterTime(); float getGain(final String bandName); float getBias(final String bandName); String getProcessingLevel(); InsertionPoint[] getGeopositionPoints(); int getPixelDataType();  }### Answer:
@Test public void testGetNoDataValue() throws Exception { assertEquals(0, metadata.getNoDataValue()); }