TestShell seems passed, but actually errors seen in test output file

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 T E S T S
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Running org.apache.hadoop.hbase.client.TestShell

Tests run: 1, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 39.252 sec

Results :

Tests run: 1, Failures: 0, Errors: 0, Skipped: 0

...
  6) Error:
test_alter_should_support_shortcut_DELETE_alter_specs(Hbase::AdminAlterTableTest):
ArgumentError: There should be at least one argument but the table name
    /home/mlai/git/hbase-private/src/test/ruby/../../main/ruby/hbase/admin.rb:307:in `alter'
    ./src/test/ruby/hbase/admin_test.rb:271:in `test_alter_should_support_shortcut_DELETE_alter_specs'
    org/jruby/RubyProc.java:268:in `call'
    org/jruby/RubyKernel.java:2038:in `send'
    org/jruby/RubyArray.java:1572:in `each'
    org/jruby/RubyArray.java:1572:in `each'
    
  7) Error:
test_split_should_work(Hbase::AdminMethodsTest):
ArgumentError: wrong number of arguments (1 for 2)
    ./src/test/ruby/hbase/admin_test.rb:99:in `test_split_should_work'
    org/jruby/RubyProc.java:268:in `call'
    org/jruby/RubyKernel.java:2038:in `send'
    org/jruby/RubyArray.java:1572:in `each'
    org/jruby/RubyArray.java:1572:in `each'
    
192 tests, 259 assertions, 1 failures, 6 errors
Done with tests! Shutting down the cluster...
2011-10-07 16:46:14,760 INFO  [main] hbase.HBaseTestingUtility(551): Shutting down minicluster
2011-10-07 16:46:14,760 DEBUG [main] util.JVMClusterUtil(214): Shutting down HBase Cluster