aboutsummaryrefslogtreecommitdiffstats
path: root/activerecord/test/cases/associations/callbacks_test.rb
blob: 17188e0b791918af2350f31383d001798ba4878c (plain) (blame)
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
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
require "cases/helper"
require 'models/post'
require 'models/comment'
require 'models/author'
require 'models/category'
require 'models/project'
require 'models/developer'

class AssociationCallbacksTest < ActiveRecord::TestCase
  fixtures :posts, :authors, :projects, :developers

  def setup
    @david = authors(:david)
    @thinking = posts(:thinking)
    @authorless = posts(:authorless)
    assert @david.post_log.empty?
  end

  def test_adding_macro_callbacks
    @david.posts_with_callbacks << @thinking
    assert_equal ["before_adding#{@thinking.id}", "after_adding#{@thinking.id}"], @david.post_log
    @david.posts_with_callbacks << @thinking
    assert_equal ["before_adding#{@thinking.id}", "after_adding#{@thinking.id}", "before_adding#{@thinking.id}",
                  "after_adding#{@thinking.id}"], @david.post_log
  end

  def test_adding_with_proc_callbacks
    @david.posts_with_proc_callbacks << @thinking
    assert_equal ["before_adding#{@thinking.id}", "after_adding#{@thinking.id}"], @david.post_log
    @david.posts_with_proc_callbacks << @thinking
    assert_equal ["before_adding#{@thinking.id}", "after_adding#{@thinking.id}", "before_adding#{@thinking.id}",
                  "after_adding#{@thinking.id}"], @david.post_log
  end

  def test_removing_with_macro_callbacks
    first_post, second_post = @david.posts_with_callbacks[0, 2]
    @david.posts_with_callbacks.delete(first_post)
    assert_equal ["before_removing#{first_post.id}", "after_removing#{first_post.id}"], @david.post_log
    @david.posts_with_callbacks.delete(second_post)
    assert_equal ["before_removing#{first_post.id}", "after_removing#{first_post.id}", "before_removing#{second_post.id}",
                  "after_removing#{second_post.id}"], @david.post_log
  end

  def test_removing_with_proc_callbacks
    first_post, second_post = @david.posts_with_callbacks[0, 2]
    @david.posts_with_proc_callbacks.delete(first_post)
    assert_equal ["before_removing#{first_post.id}", "after_removing#{first_post.id}"], @david.post_log
    @david.posts_with_proc_callbacks.delete(second_post)
    assert_equal ["before_removing#{first_post.id}", "after_removing#{first_post.id}", "before_removing#{second_post.id}",
                  "after_removing#{second_post.id}"], @david.post_log
  end

  def test_multiple_callbacks
    @david.posts_with_multiple_callbacks << @thinking
    assert_equal ["before_adding#{@thinking.id}", "before_adding_proc#{@thinking.id}", "after_adding#{@thinking.id}",
                  "after_adding_proc#{@thinking.id}"], @david.post_log
    @david.posts_with_multiple_callbacks << @thinking
    assert_equal ["before_adding#{@thinking.id}", "before_adding_proc#{@thinking.id}", "after_adding#{@thinking.id}",
                  "after_adding_proc#{@thinking.id}", "before_adding#{@thinking.id}", "before_adding_proc#{@thinking.id}",
                  "after_adding#{@thinking.id}", "after_adding_proc#{@thinking.id}"], @david.post_log
  end

  def test_has_many_callbacks_with_create
    morten = Author.create :name => "Morten"
    post = morten.posts_with_proc_callbacks.create! :title => "Hello", :body => "How are you doing?"
    assert_equal ["before_adding<new>", "after_adding#{post.id}"], morten.post_log
  end

  def test_has_many_callbacks_with_create!
    morten = Author.create! :name => "Morten"
    post = morten.posts_with_proc_callbacks.create :title => "Hello", :body => "How are you doing?"
    assert_equal ["before_adding<new>", "after_adding#{post.id}"], morten.post_log
  end

  def test_has_many_callbacks_for_save_on_parent
    jack = Author.new :name => "Jack"
    post = jack.posts_with_callbacks.build :title => "Call me back!", :body => "Before you wake up and after you sleep"

    callback_log = ["before_adding<new>", "after_adding#{jack.posts_with_callbacks.first.id}"]
    assert_equal callback_log, jack.post_log
    assert jack.save
    assert_equal 1, jack.posts_with_callbacks.count
    assert_equal callback_log, jack.post_log
  end

  def test_has_and_belongs_to_many_add_callback
    david = developers(:david)
    ar = projects(:active_record)
    assert ar.developers_log.empty?
    ar.developers_with_callbacks << david
    assert_equal ["before_adding#{david.id}", "after_adding#{david.id}"], ar.developers_log
    ar.developers_with_callbacks << david
    assert_equal ["before_adding#{david.id}", "after_adding#{david.id}", "before_adding#{david.id}",
                  "after_adding#{david.id}"], ar.developers_log
  end

  def test_has_and_belongs_to_many_remove_callback
    david = developers(:david)
    jamis = developers(:jamis)
    activerecord = projects(:active_record)
    assert activerecord.developers_log.empty?
    activerecord.developers_with_callbacks.delete(david)
    assert_equal ["before_removing#{david.id}", "after_removing#{david.id}"], activerecord.developers_log

    activerecord.developers_with_callbacks.delete(jamis)
    assert_equal ["before_removing#{david.id}", "after_removing#{david.id}", "before_removing#{jamis.id}",
                  "after_removing#{jamis.id}"], activerecord.developers_log
  end

  def test_has_and_belongs_to_many_remove_callback_on_clear
    activerecord = projects(:active_record)
    assert activerecord.developers_log.empty?
    if activerecord.developers_with_callbacks.size == 0
      activerecord.developers << developers(:david)
      activerecord.developers << developers(:jamis)
      activerecord.reload
      assert activerecord.developers_with_callbacks.size == 2
    end
    log_array = activerecord.developers_with_callbacks.collect {|d| ["before_removing#{d.id}","after_removing#{d.id}"]}.flatten.sort
    assert activerecord.developers_with_callbacks.clear
    assert_equal log_array, activerecord.developers_log.sort
  end

  def test_has_many_and_belongs_to_many_callbacks_for_save_on_parent
    project = Project.new :name => "Callbacks"
    project.developers_with_callbacks.build :name => "Jack", :salary => 95000

    callback_log = ["before_adding<new>", "after_adding<new>"]
    assert_equal callback_log, project.developers_log
    assert project.save
    assert_equal 1, project.developers_with_callbacks.size
    assert_equal callback_log, project.developers_log
  end

  def test_dont_add_if_before_callback_raises_exception
    assert !@david.unchangable_posts.include?(@authorless)
    begin
      @david.unchangable_posts << @authorless
    rescue Exception => e
    end
    assert @david.post_log.empty?
    assert !@david.unchangable_posts.include?(@authorless)
    @david.reload
    assert !@david.unchangable_posts.include?(@authorless)
  end
end