package org.thoughtcrime.securesms.crypto; import org.junit.Before; import org.junit.Test; import org.powermock.core.classloader.annotations.PowerMockIgnore; import org.thoughtcrime.securesms.BaseUnitTest; import org.whispersystems.libaxolotl.InvalidMessageException; @PowerMockIgnore("javax.crypto.*") public class MasterCipherTest extends BaseUnitTest { private MasterCipher masterCipher; @Before @Override public void setUp() throws Exception { super.setUp(); masterCipher = new MasterCipher(masterSecret); } @Test(expected = InvalidMessageException.class) public void testEncryptBytesWithZeroBody() throws Exception { masterCipher.decryptBytes(new byte[]{}); } }