Depending on your language you can change them from private to protected and create subclasses for testing.
Or create tests that will invoke the private methods from the public ones. But it could also be other code smells hard to say.
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Depending on your language you can change them from private to protected and create subclasses for testing.
Or create tests that will invoke the private methods from the public ones. But it could also be other code smells hard to say.