assert_equal(true, actual) is innocent!

[MatzFan]

Style guide should not be offended by assert_equal(true, actual)

Rationale.

[andyw8]

@zenspider's opinion (2017):

I only use assert if it is supposed to be some truthy value. If it needs to be true specifically, I'll document that with assert_equal instead.

minitest/minitest#724 (comment)