debian-mirror-gitlab/spec/support/query_recorder.rb

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2017-08-17 22:00:37 +05:30
module ActiveRecord
class QueryRecorder
attr_reader :log, :cached
def initialize(&block)
@log = []
@cached = []
ActiveSupport::Notifications.subscribed(method(:callback), 'sql.active_record', &block)
end
def callback(name, start, finish, message_id, values)
if values[:name]&.include?("CACHE")
@cached << values[:sql]
elsif !values[:name]&.include?("SCHEMA")
@log << values[:sql]
end
end
def count
@log.count
end
def cached_count
@cached.count
end
def log_message
@log.join("\n\n")
end
end
end
RSpec::Matchers.define :exceed_query_limit do |expected|
supports_block_expectations
match do |block|
query_count(&block) > expected
end
failure_message_when_negated do |actual|
"Expected a maximum of #{expected} queries, got #{@recorder.count}:\n\n#{@recorder.log_message}"
end
def query_count(&block)
@recorder = ActiveRecord::QueryRecorder.new(&block)
@recorder.count
end
end