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author | Rémy Coutable <remy@rymai.me> | 2018-06-05 08:22:14 +0000 |
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committer | Rémy Coutable <remy@rymai.me> | 2018-06-05 08:22:14 +0000 |
commit | 8576e45f28737f1e9f6b0b6e5649745c76751b06 (patch) | |
tree | feb107fb138fee822a9a1b445cb876594cd94aa2 /spec | |
parent | a8bfaf69feed226bc209171b5dcc5b1b2d95487e (diff) | |
parent | cbc20d2b7f8c73e2892c0c458619df2a9fe0c9ab (diff) | |
download | gitlab-ce-8576e45f28737f1e9f6b0b6e5649745c76751b06.tar.gz |
Merge branch 'sh-add-uncached-query-limiter' into 'master'
Remove N+1 query for author in issues API
See merge request gitlab-org/gitlab-ce!19345
Diffstat (limited to 'spec')
-rw-r--r-- | spec/requests/api/issues_spec.rb | 8 | ||||
-rw-r--r-- | spec/support/helpers/query_recorder.rb | 7 | ||||
-rw-r--r-- | spec/support/matchers/exceed_query_limit.rb | 65 |
3 files changed, 59 insertions, 21 deletions
diff --git a/spec/requests/api/issues_spec.rb b/spec/requests/api/issues_spec.rb index 4181f4ebbbe..a15d60aafe0 100644 --- a/spec/requests/api/issues_spec.rb +++ b/spec/requests/api/issues_spec.rb @@ -630,15 +630,17 @@ describe API::Issues do end it 'avoids N+1 queries' do - control_count = ActiveRecord::QueryRecorder.new do + get api("/projects/#{project.id}/issues", user) + + control_count = ActiveRecord::QueryRecorder.new(skip_cached: false) do get api("/projects/#{project.id}/issues", user) end.count - create(:issue, author: user, project: project) + create_list(:issue, 3, project: project) expect do get api("/projects/#{project.id}/issues", user) - end.not_to exceed_query_limit(control_count) + end.not_to exceed_all_query_limit(control_count) end it 'returns 404 when project does not exist' do diff --git a/spec/support/helpers/query_recorder.rb b/spec/support/helpers/query_recorder.rb index 28536bbef5e..7ce63375d34 100644 --- a/spec/support/helpers/query_recorder.rb +++ b/spec/support/helpers/query_recorder.rb @@ -1,10 +1,11 @@ module ActiveRecord class QueryRecorder - attr_reader :log, :cached + attr_reader :log, :skip_cached, :cached - def initialize(&block) + def initialize(skip_cached: true, &block) @log = [] @cached = [] + @skip_cached = skip_cached ActiveSupport::Notifications.subscribed(method(:callback), 'sql.active_record', &block) end @@ -16,7 +17,7 @@ module ActiveRecord def callback(name, start, finish, message_id, values) show_backtrace(values) if ENV['QUERY_RECORDER_DEBUG'] - if values[:name]&.include?("CACHE") + if values[:name]&.include?("CACHE") && skip_cached @cached << values[:sql] elsif !values[:name]&.include?("SCHEMA") @log << values[:sql] diff --git a/spec/support/matchers/exceed_query_limit.rb b/spec/support/matchers/exceed_query_limit.rb index 88d22a3ddd9..cd042401f3a 100644 --- a/spec/support/matchers/exceed_query_limit.rb +++ b/spec/support/matchers/exceed_query_limit.rb @@ -1,17 +1,4 @@ -RSpec::Matchers.define :exceed_query_limit do |expected| - supports_block_expectations - - match do |block| - @subject_block = block - actual_count > expected_count + threshold - end - - failure_message_when_negated do |actual| - threshold_message = threshold > 0 ? " (+#{@threshold})" : '' - counts = "#{expected_count}#{threshold_message}" - "Expected a maximum of #{counts} queries, got #{actual_count}:\n\n#{log_message}" - end - +module ExceedQueryLimitHelpers def with_threshold(threshold) @threshold = threshold self @@ -43,7 +30,7 @@ RSpec::Matchers.define :exceed_query_limit do |expected| end def recorder - @recorder ||= ActiveRecord::QueryRecorder.new(&@subject_block) + @recorder ||= ActiveRecord::QueryRecorder.new(skip_cached: skip_cached, &@subject_block) end def count_queries(queries) @@ -61,4 +48,52 @@ RSpec::Matchers.define :exceed_query_limit do |expected| @recorder.log_message end end + + def skip_cached + true + end + + def verify_count(&block) + @subject_block = block + actual_count > expected_count + threshold + end + + def failure_message + threshold_message = threshold > 0 ? " (+#{@threshold})" : '' + counts = "#{expected_count}#{threshold_message}" + "Expected a maximum of #{counts} queries, got #{actual_count}:\n\n#{log_message}" + end +end + +RSpec::Matchers.define :exceed_all_query_limit do |expected| + supports_block_expectations + + include ExceedQueryLimitHelpers + + match do |block| + verify_count(&block) + end + + failure_message_when_negated do |actual| + failure_message + end + + def skip_cached + false + end +end + +# Excludes cached methods from the query count +RSpec::Matchers.define :exceed_query_limit do |expected| + supports_block_expectations + + include ExceedQueryLimitHelpers + + match do |block| + verify_count(&block) + end + + failure_message_when_negated do |actual| + failure_message + end end |