As Oleg posted on my blog
We should add an option so end users can enable per class CamelContext (its shared). This ensure there is less overhead creating/shutting down CamelContext between test methods.
Then they can decide to enable this in case their test can leverage this feature. This will speedup unit testing.
This requires JUnit4 and its support for @BeforeClass and @AfterClass
We should look into adding the same support for TestNG as well.