@Test
public void testreadWriteHdu() throws Exception {
byte[] undefinedData = new byte[1000];
for (int index = 0; index < undefinedData.length; index++) {
undefinedData[index] = (byte) index;
}
UndefinedData data = UndefinedHDU.encapsulate(undefinedData);
Header header = new Header();
header.pointToData(data);
UndefinedHDU hdu = new UndefinedHDU(header, data);
hdu.getHeader().deleteKey("EXTEND");
BufferedFile stream = new BufferedFile("target/rewriteHduTest.bin", "rw");
hdu.write(stream);
stream.close();
stream = new BufferedFile("target/rewriteHduTest.bin", "rw");
data = UndefinedHDU.encapsulate(new byte[0]);
hdu = new UndefinedHDU(new Header(data), data);
hdu.read(stream);
hdu.addValue("TESTER", "WRITE", null);
hdu.rewrite();
hdu.reset();
hdu.read(stream);
hdu.getHeader().getStringValue("TESTER");
byte[] rereadUndefinedData = (byte[]) hdu.getData().getData();
Assert.assertArrayEquals(undefinedData, rereadUndefinedData);
}
@Test
public void testFitsUndefinedHdu5() throws Exception {
Header head = new Header();
head.setXtension("UNKNOWN");
head.setBitpix(BasicHDU.BITPIX_BYTE);
head.setNaxes(1);
head.addValue("NAXIS1", 1000, null);
head.addValue("PCOUNT", 0, null);
head.addValue("GCOUNT", 2, null);
UndefinedHDU hdu = (UndefinedHDU) FitsFactory.hduFactory(head);
byte[] data = (byte[]) hdu.getData().getData();
Assert.assertEquals(2000, data.length);
Arrays.fill(data, (byte) 1);
BufferedFile buf = new BufferedFile("target/testFitsUndefinedHdu5", "rw");
hdu.write(buf);
buf.close();
Arrays.fill(data, (byte) 2);
buf = new BufferedFile("target/testFitsUndefinedHdu5", "rw");
hdu.read(buf);
data = (byte[]) hdu.getData().getData();
buf.close();
Assert.assertEquals((byte) 1, data[0]);
}
private void writeFile(Fits f, String name) throws Exception {
BufferedFile bf = new BufferedFile(name, "rw");
f.write(bf);
bf.flush();
bf.close();
}