activerecord/test/cases/arel/delete_manager_test.rb


1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51

# frozen_string_literal: true
require_relative 'helper'

module Arel
  class DeleteManagerTest < Arel::Spec
    describe 'new' do
      it 'takes an engine' do
        Arel::DeleteManager.new
      end
    end

    it 'handles limit properly' do
      table = Table.new(:users)
      dm = Arel::DeleteManager.new
      dm.take 10
      dm.from table
      assert_match(/LIMIT 10/, dm.to_sql)
    end

    describe 'from' do
      it 'uses from' do
        table = Table.new(:users)
        dm = Arel::DeleteManager.new
        dm.from table
        dm.to_sql.must_be_like %{ DELETE FROM "users" }
      end

      it 'chains' do
        table = Table.new(:users)
        dm = Arel::DeleteManager.new
        dm.from(table).must_equal dm
      end
    end

    describe 'where' do
      it 'uses where values' do
        table = Table.new(:users)
        dm = Arel::DeleteManager.new
        dm.from table
        dm.where table[:id].eq(10)
        dm.to_sql.must_be_like %{ DELETE FROM "users" WHERE "users"."id" = 10}
      end

      it 'chains' do
        table = Table.new(:users)
        dm = Arel::DeleteManager.new
        dm.where(table[:id].eq(10)).must_equal dm
      end
    end
  end
end