Voici un rapide matcher j'ai jeté ensemble dans quelques minutes:
RSpec::Matchers.define :set_the_instance_variable do |instance|
match do |actual|
@actual = controller.instance_variable_get(instance)
@actual == @value
end
failure_message_for_should do |actual|
"Expected '#{instance}' to equal #{@value}. However, it did not: \n '#{@actual.inspect}' \n '#{@value.inspect}'"
end
failure_message_for_should_not do |actual|
"Expected '#{instance}' to not equal #{@value}. However, it did: \n '#{@actual.inspect}' \n '#{@value.inspect}'" end
description do
"'#{instance}' should equal #{@value}."
end
def to(value)
@value = value
self
end
end
Utilisation
it { should set_the_instance_variable(:@folder).to(parent_folder)}