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
|
require 'generators/generators_test_helper'
require 'rails/generators/rails/migration/migration_generator'
class MigrationGeneratorTest < Rails::Generators::TestCase
include GeneratorsTestHelper
def test_migration
migration = "change_title_body_from_posts"
run_generator [migration]
assert_migration "db/migrate/#{migration}.rb", /class ChangeTitleBodyFromPosts < ActiveRecord::Migration/
end
def test_migrations_generated_simultaneously
migrations = ["change_title_body_from_posts", "change_email_from_comments"]
first_migration_number, second_migration_number = migrations.collect do |migration|
run_generator [migration]
file_name = migration_file_name "db/migrate/#{migration}.rb"
File.basename(file_name).split('_').first
end
assert_not_equal first_migration_number, second_migration_number
end
def test_migration_with_class_name
migration = "ChangeTitleBodyFromPosts"
run_generator [migration]
assert_migration "db/migrate/change_title_body_from_posts.rb", /class #{migration} < ActiveRecord::Migration/
end
def test_add_migration_with_attributes
migration = "add_title_body_to_posts"
run_generator [migration, "title:string", "body:text"]
assert_migration "db/migrate/#{migration}.rb" do |content|
assert_method :change, content do |up|
assert_match(/add_column :posts, :title, :string/, up)
assert_match(/add_column :posts, :body, :text/, up)
end
end
end
def test_remove_migration_with_attributes
migration = "remove_title_body_from_posts"
run_generator [migration, "title:string", "body:text"]
assert_migration "db/migrate/#{migration}.rb" do |content|
assert_method :up, content do |up|
assert_match(/remove_column :posts, :title/, up)
assert_match(/remove_column :posts, :body/, up)
end
assert_method :down, content do |down|
assert_match(/add_column :posts, :title, :string/, down)
assert_match(/add_column :posts, :body, :text/, down)
end
end
end
def test_add_migration_with_attributes_and_indices
migration = "add_title_with_index_and_body_to_posts"
run_generator [migration, "title:string:index", "body:text", "user_id:integer:uniq"]
assert_migration "db/migrate/#{migration}.rb" do |content|
assert_method :change, content do |up|
assert_match(/add_column :posts, :title, :string/, up)
assert_match(/add_column :posts, :body, :text/, up)
assert_match(/add_column :posts, :user_id, :integer/, up)
end
assert_match(/add_index :posts, :title/, content)
assert_match(/add_index :posts, :user_id, :unique => true/, content)
end
end
def test_add_migration_with_attributes_and_wrong_index_declaration
migration = "add_title_and_content_to_books"
run_generator [migration, "title:string:inex", "content:text", "user_id:integer:unik"]
assert_migration "db/migrate/#{migration}.rb" do |content|
assert_method :change, content do |up|
assert_match(/add_column :books, :title, :string/, up)
assert_match(/add_column :books, :content, :text/, up)
assert_match(/add_column :books, :user_id, :integer/, up)
end
assert_no_match(/add_index :books, :title/, content)
assert_no_match(/add_index :books, :user_id/, content)
end
end
def test_add_migration_with_attributes_without_type_and_index
migration = "add_title_with_index_and_body_to_posts"
run_generator [migration, "title:index", "body:text", "user_uuid:uniq"]
assert_migration "db/migrate/#{migration}.rb" do |content|
assert_method :change, content do |up|
assert_match(/add_column :posts, :title, :string/, up)
assert_match(/add_column :posts, :body, :text/, up)
assert_match(/add_column :posts, :user_uuid, :string/, up)
end
assert_match(/add_index :posts, :title/, content)
assert_match(/add_index :posts, :user_uuid, :unique => true/, content)
end
end
def test_add_migration_with_attributes_index_declaration_and_attribute_options
migration = "add_title_and_content_to_books"
run_generator [migration, "title:string{40}:index", "content:string{255}", "price:decimal{1,2}:index", "discount:decimal{3.4}:uniq"]
assert_migration "db/migrate/#{migration}.rb" do |content|
assert_method :change, content do |up|
assert_match(/add_column :books, :title, :string, :limit => 40/, up)
assert_match(/add_column :books, :content, :string, :limit => 255/, up)
assert_match(/add_column :books, :price, :decimal,/, up)
assert_match(/, :precision => 1/, up)
assert_match(/, :scale => 2/, up)
assert_match(/add_column :books, :discount, :decimal,/, up)
assert_match(/, :precision => 3/, up)
assert_match(/, :scale => 4/, up)
end
assert_match(/add_index :books, :title/, content)
assert_match(/add_index :books, :price/, content)
assert_match(/add_index :books, :discount, :unique => true/, content)
end
end
def test_should_create_empty_migrations_if_name_not_start_with_add_or_remove
migration = "create_books"
run_generator [migration, "title:string", "content:text"]
assert_migration "db/migrate/#{migration}.rb" do |content|
assert_method :up, content do |up|
assert_match(/^\s*$/, up)
end
assert_method :down, content do |down|
assert_match(/^\s*$/, down)
end
end
end
end
|
