### Question:
Bitstream extends DSpaceObject { public String getChecksum() { return bRow.getStringColumn("checksum"); } Bitstream(Context context, TableRow row); static Bitstream find(Context context, int id); static Bitstream[] findAll(Context context); int getID(); String getHandle(); int getSequenceID(); void setSequenceID(int sid); String getName(); void setName(String n); String getSource(); void setSource(String n); String getDescription(); void setDescription(String n); String getChecksum(); String getChecksumAlgorithm(); long getSize(); void setUserFormatDescription(String desc); String getUserFormatDescription(); String getFormatDescription(); BitstreamFormat getFormat(); void setFormat(BitstreamFormat f); void update(); InputStream retrieve(); Bundle[] getBundles(); int getType(); boolean isRegisteredBitstream(); int getStoreNumber(); DSpaceObject getParentObject();  }### Answer:
@Test public void testGetChecksum() { String checksum = "75a060bf6eb63fd0aad88b7d757728d3"; assertThat("testGetChecksum 0", bs.getChecksum(), notNullValue()); assertThat("testGetChecksum 1", bs.getChecksum(), not(equalTo(""))); assertThat("testGetChecksum 2", bs.getChecksum(), equalTo(checksum)); }