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require 'spec_helper'
describe Bogus::VerifiesContracts do
let(:real_interactions) { stub }
let(:doubled_interactions) { stub }
let(:verifies_contracts) { isolate(Bogus::VerifiesContracts) }
let(:matched_interaction) { interaction("matched") }
it "fails unmatched calls" do
first_interaction = interaction("first")
second_interaction = interaction("second")
other_interaction = interaction("other")
stub(doubled_interactions).for_fake(:fake_name){[first_interaction, matched_interaction, second_interaction]}
stub(real_interactions).for_fake(:fake_name){[matched_interaction, other_interaction]}
stub(real_interactions).recorded?(:fake_name, first_interaction) { false }
stub(real_interactions).recorded?(:fake_name, second_interaction) { false }
stub(real_interactions).recorded?(:fake_name, matched_interaction) { true }
expect_verify_to_raise_error_with_interactions(:fake_name,
[first_interaction, second_interaction],
[matched_interaction, other_interaction])
end
it "passes with all calls matched" do
stub(doubled_interactions).for_fake(:fake_name) { [matched_interaction] }
stub(real_interactions).recorded?(:fake_name, matched_interaction) { true }
expect {
verifies_contracts.verify(:fake_name)
}.not_to raise_error
end
def expect_verify_to_raise_error_with_interactions(name, missed, real)
verifies_contracts.verify(name)
fail
rescue Bogus::ContractNotFulfilled => contract_error
expect(contract_error.fake_name).to eq name
expect(contract_error.missed_interactions).to eq missed
expect(contract_error.actual_interactions).to eq real
end
def interaction(method)
Bogus::Interaction.new(method, [:foo, :bar]) { "return value" }
end
end
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