aboutsummaryrefslogtreecommitdiffstats
path: root/activerecord/test/cases/adapters/sqlite3/explain_test.rb
blob: a1a6e5f16aa0a69aff6b162e0a907450fa4bc8ac (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
require "cases/helper"
require 'models/developer'
require 'models/computer'

class SQLite3ExplainTest < ActiveRecord::SQLite3TestCase
  fixtures :developers

  def test_explain_for_one_query
    explain = Developer.where(id: 1).explain
    assert_match %r(EXPLAIN for: SELECT "developers".* FROM "developers" WHERE "developers"."id" = (?:\?|1)), explain
    assert_match(/(SEARCH )?TABLE developers USING (INTEGER )?PRIMARY KEY/, explain)
  end

  def test_explain_with_eager_loading
    explain = Developer.where(id: 1).includes(:audit_logs).explain
    assert_match %r(EXPLAIN for: SELECT "developers".* FROM "developers" WHERE "developers"."id" = (?:\?|1)), explain
    assert_match(/(SEARCH )?TABLE developers USING (INTEGER )?PRIMARY KEY/, explain)
    assert_match %(EXPLAIN for: SELECT "audit_logs".* FROM "audit_logs" WHERE "audit_logs"."developer_id" = 1), explain
    assert_match(/(SCAN )?TABLE audit_logs/, explain)
  end
end