test fails due a Bang!

[zeroed]

Hi...

Great code, great gem!
^_^

But running the test I've found a test that fail due a bang:

eddie@white:~/Coding/map$ ruby test/map_test.rb 
Loaded suite test/map_test
Started
................E
===============================================================================
Error: test_00016_simple-struct-usage(TESTING_001_MAP)
  IndexError: !
/home/eddie/Coding/map/lib/map/struct.rb:27:in `method_missing'
/home/eddie/Coding/map/test/lib/testing.rb:47:in `assert'
test/map_test.rb:178:in `block (2 levels) in <main>'
===============================================================================
E
===============================================================================
Error: test_00017_nested-struct-usage(TESTING_001_MAP)
  IndexError: !
/home/eddie/Coding/map/lib/map/struct.rb:27:in `method_missing'
/home/eddie/Coding/map/test/lib/testing.rb:47:in `assert'
test/map_test.rb:185:in `block (2 levels) in <main>'
===============================================================================
.......................................

Finished in 0.264128141 seconds.

57 tests, 4952 assertions, 0 failures, 2 errors, 0 pendings, 0 omissions, 0 notifications
96.4912% passed

[ahoward]

fixed.

[voxik]

Sorry, but this still fails with test-unit, while it is not issue for minitest. IOW, this does not work for Ruby 2.2