Merge pull request #1 from kuhruby/testcases

add unit and integration test prototypes.
Merge pull request #2 from kuhruby/testcases

band basic validations
Merge pull request #3 from kuhruby/testcases

add a helper method for create
add opener column to band
Merge pull request #4 from kuhruby/test_cases

add opener column to band
pass test to make band opener