class RuboCop::Cop::Minitest::AssertInstanceOf


assert_instance_of(Class, object, ‘message’)
assert_instance_of(Class, object)
# good
assert_equal(Class, object.class, ‘message’)
assert_equal(Class, object.class)
# bad
assert(object.instance_of?(Class), ‘message’)
assert(object.instance_of?(Class))
# bad
@example
over ‘assert(object.instance_of?(Class))`.
Enforces the test to use `assert_instance_of(Class, object)`

def on_send(node) 

def on_send(node)
  investigate(node, :assert)
end