[coolbreeze]

How many CDL test attempts do these companies that have their own training schools give you before they send you home or perhaps start charging you to re-test?
How do they work this generally?

[JoeyB]

I'm sure this will vary by company.

By the time you head in for your test, they'll have an opinion of your abilities. If your trainers feel you'll be a good fit in the company, you'll most likely get more chances then somebody who they feel doesn't have the abilities or personality they're looking for.