/**
* Tests backward compatibility. Configuration can be either set with old param dfs.umask that
* takes decimal umasks or dfs.umaskmode that takes symbolic or octal umask.
*/
public void testBackwardCompatibility() {
// Test 1 - old configuration key with decimal
// umask value should be handled when set using
// FSPermission.setUMask() API
FsPermission perm = new FsPermission((short) 18);
Configuration conf = new Configuration();
FsPermission.setUMask(conf, perm);
assertEquals(18, FsPermission.getUMask(conf).toShort());
// Test 2 - old configuration key set with decimal
// umask value should be handled
perm = new FsPermission((short) 18);
conf = new Configuration();
conf.set(FsPermission.DEPRECATED_UMASK_LABEL, "18");
assertEquals(18, FsPermission.getUMask(conf).toShort());
// Test 3 - old configuration key overrides the new one
conf = new Configuration();
conf.set(FsPermission.DEPRECATED_UMASK_LABEL, "18");
conf.set(FsPermission.UMASK_LABEL, "000");
assertEquals(18, FsPermission.getUMask(conf).toShort());
// Test 4 - new configuration key is handled
conf = new Configuration();
conf.set(FsPermission.UMASK_LABEL, "022");
assertEquals(18, FsPermission.getUMask(conf).toShort());
}
