@Test
/*
* Contains:
* -net.sf.zipme.ZipInputStream.hook()
* -net.sf.zipme.ZipInputStream.hook2(int)
* -net.sf.zipme.ZipInputStream.hook30(byte[], int, int)
*/
public void testGZICRC() {
// Features
ZipMeVariables.getSINGLETON().setDERIVATIVE_GZIPCRC___(true);
ZipMeVariables.getSINGLETON().setCRC___(true);
// Variables
byte[] b = {0};
// ByteInputStream in = new ByteInputStream(b, 1);
ZipInputStream z = new ZipInputStream(in);
// Tests
// z.crc = null; //before hook()
z.hook();
assertEquals(z.crc.crc, 0); // after hook()
z.headCRC = new CRC32(); // HeadCRC needs to be initialized
assertEquals(z.headCRC.crc, 0); // Before hook2()
z.hook2(0);
Assert.assertEquals(z.headCRC.crc, -771559539); // After hook2() the value changed
assertEquals(z.crc.crc, 0); // Value before hook30()
try {
z.hook30(b, 0, 1);
} catch (IOException e) {
e.printStackTrace();
}
Assert.assertEquals(z.crc.crc, -771559539); // Value changed
}
@Test(expected = IOException.class)
/*
* The method hook3() won't do anything special other than throwing an exception
*/
public void hook3Test() throws IOException {
// Features
ZipMeVariables.getSINGLETON().setDERIVATIVE_GZIPCRC___(true);
ZipMeVariables.getSINGLETON().setCRC___(true);
// Variable
byte[] b = {0};
// ByteInputStream in = new ByteInputStream(b, 1);
ZipInputStream z = new ZipInputStream(in);
z.headCRC = new CRC32(); // headCRC needs to be initialized
assertEquals(z.headCRC.crc, 0);
z.hook3(1); // Throws exception if parameter is different than headCRC.crc
}