Check if Store is opened

* [AGDROID-182](https://issues.jboss.org/browse/AGDROID-182)
* [AGDROID-183](https://issues.jboss.org/browse/AGDROID-183)

For the previous three tests, the test will also pass if the exception is not thrown. The body of the catch should probably have an explicit return and the last line of the method should have a fail().