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henrikj242/array_of.rb

Created September 6, 2018 10:49
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Rspec custom matcher example
Raw
array_of.rb
# Save this file in spec/support/matchers
RSpec::Matchers.define :be_an_array_of do |expected|
match do |actual|
actual.is_a?(Array) && actual.map(&:class) == expected
end
end
# usage:
# expect([Subscriber.new(email: 'test@example.com'), []]).to be_an_array_of([Subscriber, Array])
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