72 lines
2.1 KiB
Ruby
72 lines
2.1 KiB
Ruby
# frozen_string_literal: true
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require "cases/helper"
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require "active_record/explain_subscriber"
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require "active_record/explain_registry"
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if ActiveRecord::Base.connection.supports_explain?
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class ExplainSubscriberTest < ActiveRecord::TestCase
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SUBSCRIBER = ActiveRecord::ExplainSubscriber.new
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def setup
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ActiveRecord::ExplainRegistry.reset
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ActiveRecord::ExplainRegistry.collect = true
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end
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def test_collects_nothing_if_the_payload_has_an_exception
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SUBSCRIBER.finish(nil, nil, exception: Exception.new)
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assert_empty queries
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end
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def test_collects_nothing_for_ignored_payloads
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ActiveRecord::ExplainSubscriber::IGNORED_PAYLOADS.each do |ip|
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SUBSCRIBER.finish(nil, nil, name: ip)
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end
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assert_empty queries
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end
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def test_collects_nothing_if_collect_is_false
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ActiveRecord::ExplainRegistry.collect = false
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SUBSCRIBER.finish(nil, nil, name: "SQL", sql: "select 1 from users", binds: [1, 2])
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assert_empty queries
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end
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def test_collects_pairs_of_queries_and_binds
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sql = "select 1 from users"
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binds = [1, 2]
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SUBSCRIBER.finish(nil, nil, name: "SQL", sql: sql, binds: binds)
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assert_equal 1, queries.size
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assert_equal sql, queries[0][0]
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assert_equal binds, queries[0][1]
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end
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def test_collects_nothing_if_the_statement_is_not_explainable
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SUBSCRIBER.finish(nil, nil, name: "SQL", sql: "SHOW max_identifier_length")
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assert_empty queries
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end
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def test_collects_nothing_if_the_statement_is_only_partially_matched
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SUBSCRIBER.finish(nil, nil, name: "SQL", sql: "select_db yo_mama")
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assert_empty queries
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end
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def test_collects_cte_queries
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SUBSCRIBER.finish(nil, nil, name: "SQL", sql: "with s as (values(3)) select 1 from s")
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assert_equal 1, queries.size
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end
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def test_collects_queries_starting_with_comment
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SUBSCRIBER.finish(nil, nil, name: "SQL", sql: "/* comment */ select 1 from users")
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assert_equal 1, queries.size
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end
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teardown do
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ActiveRecord::ExplainRegistry.reset
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end
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def queries
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ActiveRecord::ExplainRegistry.queries
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end
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end
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end
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