[Bug] Minitest/Assert* having conflicts with Rails/RefuteMethods policy

[bogdan]

Bug Description

The rules Minitest/Assert* has some conflicts with Rails/RefuteMethods. It has default policy to convert refute_* statements to assert_not_* which causes Minitest/Assert* to be ignored.

Example:

# Statement
refute user.new_record?
# Will be converted by Rails/RefuteMethods to
assert_not user.new_record? 
# And will be ignored by Minitest/AssertPredicate

Fix

Make all rules consistent when converting generic refute or assert_not statements to refute_* or assert_not_* statements making sure it supports default policy established by Rails/RefuteMethods:

# bad
assert_not(obj.one?)
assert_not(obj.one?, 'message')

# good
assert_not_predicate(obj, :one?)
assert_not_predicate(obj, :one?, 'message')