Allow hiding satisfied expectations in test output

[thomasmarshall]

It's often not important to see satisfied stubs in test output, and in some test suites the noise can be difficult to parse. This commit introduces an Expectation#quietly method which allows the suppression of test output for satisfied expectations on a case-by-case basis.

Example

setup do
  SomeGlobal.stubs(:foo).with(any_of(*SomeGlobal::THINGS)).quietly
  AnotherGlobal.stubs(:connection).quietly
end

test "foo" do
  Foo.stubs(:bar)
  Bar.expects(:baz)
end

Without #quietly	With #quietly

Alternatives

One alternative might be to treat stubs and expectations differently, such that satisfied stubs are never reported. Or maybe satisfied expectations with a cardinality of 0 needn't be reported. Or maybe it's already possible to hook into Mockery somehow to override the reporting behaviour?

At the moment, we're monkey patching to achieve something similar but thought others might be interested in this change – no worries if not!

[floehopper]

@thomasmarshall Thanks for the PR. At first glance doing something about this sounds sensible. I wonder whether a configuration option might be more appropriate. I'm on leave at the moment, but I'll try to have a proper look at it when I'm back next week.

[floehopper]

@thomasmarshall I'm sorry I haven't got round to doing anything about this. I've opened #587 to capture the idea, because I still think it's a good one!