41 lines
876 B
Ruby
41 lines
876 B
Ruby
module ActiveRecord
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class QueryRecorder
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attr_reader :log
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def initialize(&block)
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@log = []
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ActiveSupport::Notifications.subscribed(method(:callback), 'sql.active_record', &block)
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end
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def callback(name, start, finish, message_id, values)
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return if %w(CACHE SCHEMA).include?(values[:name])
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@log << values[:sql]
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end
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def count
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@log.count
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end
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def log_message
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@log.join("\n\n")
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end
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end
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end
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RSpec::Matchers.define :exceed_query_limit do |expected|
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supports_block_expectations
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match do |block|
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query_count(&block) > expected
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end
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failure_message_when_negated do |actual|
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"Expected a maximum of #{expected} queries, got #{@recorder.count}:\n\n#{@recorder.log_message}"
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end
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def query_count(&block)
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@recorder = ActiveRecord::QueryRecorder.new(&block)
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@recorder.count
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end
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end
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