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# frozen_string_literal: true
require 'spec_helper'
RSpec.describe Gitlab::Database::Migrations::Observers::QueryDetails do
subject { described_class.new(observation) }
let(:observation) { Gitlab::Database::Migrations::Observation.new(migration_version, migration_name) }
let(:connection) { ActiveRecord::Base.connection }
let(:query) { "select date_trunc('day', $1::timestamptz) + $2 * (interval '1 hour')" }
let(:query_binds) { [Time.current, 3] }
let(:directory_path) { Dir.mktmpdir }
let(:log_file) { "#{directory_path}/#{migration_version}_#{migration_name}-query-details.json" }
let(:query_details) { Gitlab::Json.parse(File.read(log_file)) }
let(:migration_version) { 20210422152437 }
let(:migration_name) { 'test' }
before do
stub_const('Gitlab::Database::Migrations::Instrumentation::RESULT_DIR', directory_path)
end
after do
FileUtils.remove_entry(directory_path)
end
it 'records details of executed queries' do
observe
expect(query_details.size).to eq(1)
log_entry = query_details[0]
start_time, end_time, sql, binds = log_entry.values_at('start_time', 'end_time', 'sql', 'binds')
start_time = DateTime.parse(start_time)
end_time = DateTime.parse(end_time)
aggregate_failures do
expect(sql).to include(query)
expect(start_time).to be_before(end_time)
expect(binds).to eq(query_binds.map { |b| connection.type_cast(b) })
end
end
it 'unsubscribes after the observation' do
observe
expect(subject).not_to receive(:record_sql_event)
run_query
end
def observe
subject.before
run_query
subject.after
subject.record
end
def run_query
connection.exec_query(query, 'SQL', query_binds)
end
end
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