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# frozen_string_literal: true
RSpec::Matchers.define :publish_event do |expected_event_class|
include RSpec::Matchers::Composable
supports_block_expectations
match do |proc|
raise ArgumentError, 'publish_event matcher only supports block expectation' unless proc.respond_to?(:call)
@events ||= []
allow(Gitlab::EventStore).to receive(:publish) do |published_event|
@events << published_event
end
proc.call
@events.any? do |event|
event.instance_of?(expected_event_class) && match_data?(event.data, @expected_data)
end
end
def match_data?(actual, expected)
return if actual.blank? || expected.blank?
values_match?(actual.keys, expected.keys) &&
actual.keys.all? do |key|
values_match?(expected[key], actual[key])
end
end
chain :with do |expected_data|
@expected_data = expected_data
end
failure_message do
message = "expected #{expected_event_class} with #{@expected_data || 'no data'} to be published"
if @events.present?
<<~MESSAGE
#{message}, but only the following events were published:
#{events_list}
MESSAGE
else
"#{message}, but no events were published."
end
end
match_when_negated do |proc|
raise ArgumentError, 'publish_event matcher only supports block expectation' unless proc.respond_to?(:call)
allow(Gitlab::EventStore).to receive(:publish)
proc.call
expect(Gitlab::EventStore).not_to have_received(:publish).with(instance_of(expected_event_class))
end
def events_list
@events.map do |event|
" - #{event.class.name} with #{event.data}"
end.join("\n")
end
end
# not_publish_event enables multiple assertions on a single block, for example:
# expect { Model.create(invalid: :attribute) }
# .to not_change(Model, :count)
# .and not_publish_event(ModelCreated)
RSpec::Matchers.define :not_publish_event do |expected_event_class|
include RSpec::Matchers::Composable
supports_block_expectations
match do |proc|
raise ArgumentError, 'not_publish_event matcher only supports block expectation' unless proc.respond_to?(:call)
@events ||= []
allow(Gitlab::EventStore).to receive(:publish) do |published_event|
@events << published_event
end
proc.call
@events.none? do |event|
event.instance_of?(expected_event_class)
end
end
failure_message do
"expected #{expected_event_class} not to be published"
end
chain :with do |_| # rubocop: disable Lint/UnreachableLoop
raise ArgumentError, 'not_publish_event does not permit .with to avoid ambiguity'
end
match_when_negated do |proc|
raise ArgumentError, 'not_publish_event matcher does not support negation. Use `expect {}.to publish_event` instead'
end
end
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