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
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
|
# frozen_string_literal: true
require "cases/helper"
require "cases/migration/helper"
class MultiDbMigratorTest < ActiveRecord::TestCase
self.use_transactional_tests = false
# Use this class to sense if migrations have gone
# up or down.
class Sensor < ActiveRecord::Migration::Current
attr_reader :went_up, :went_down
def initialize(name = self.class.name, version = nil)
super
@went_up = false
@went_down = false
end
def up; @went_up = true; end
def down; @went_down = true; end
end
def setup
super
@connection_a = ActiveRecord::Base.connection
@connection_b = ARUnit2Model.connection
@connection_a.schema_migration.create_table
@connection_b.schema_migration.create_table
@connection_a.schema_migration.delete_all rescue nil
@connection_b.schema_migration.delete_all rescue nil
@path_a = MIGRATIONS_ROOT + "/valid"
@path_b = MIGRATIONS_ROOT + "/to_copy"
@schema_migration_a = @connection_a.schema_migration
@migrations_a = ActiveRecord::MigrationContext.new(@path_a, @schema_migration_a).migrations
@schema_migration_b = @connection_b.schema_migration
@migrations_b = ActiveRecord::MigrationContext.new(@path_b, @schema_migration_b).migrations
@migrations_a_list = [[1, "ValidPeopleHaveLastNames"], [2, "WeNeedReminders"], [3, "InnocentJointable"]]
@migrations_b_list = [[1, "PeopleHaveHobbies"], [2, "PeopleHaveDescriptions"]]
@verbose_was = ActiveRecord::Migration.verbose
ActiveRecord::Migration.message_count = 0
ActiveRecord::Migration.class_eval do
undef :puts
def puts(*)
ActiveRecord::Migration.message_count += 1
end
end
end
teardown do
@connection_a.schema_migration.delete_all rescue nil
@connection_b.schema_migration.delete_all rescue nil
ActiveRecord::Migration.verbose = @verbose_was
ActiveRecord::Migration.class_eval do
undef :puts
def puts(*)
super
end
end
end
def test_finds_migrations
@migrations_a_list.each_with_index do |pair, i|
assert_equal @migrations_a[i].version, pair.first
assert_equal @migrations_a[i].name, pair.last
end
@migrations_b_list.each_with_index do |pair, i|
assert_equal @migrations_b[i].version, pair.first
assert_equal @migrations_b[i].name, pair.last
end
end
def test_migrations_status
@schema_migration_a.create(version: 2)
@schema_migration_a.create(version: 10)
assert_equal [
["down", "001", "Valid people have last names"],
["up", "002", "We need reminders"],
["down", "003", "Innocent jointable"],
["up", "010", "********** NO FILE **********"],
], ActiveRecord::MigrationContext.new(@path_a, @schema_migration_a).migrations_status
@schema_migration_b.create(version: 4)
assert_equal [
["down", "001", "People have hobbies"],
["down", "002", "People have descriptions"],
["up", "004", "********** NO FILE **********"]
], ActiveRecord::MigrationContext.new(@path_b, @schema_migration_b).migrations_status
end
def test_get_all_versions
_, migrator_a = migrator_class(3)
migrator_a = migrator_a.new(@path_a, @schema_migration_a)
migrator_a.migrate
assert_equal([1, 2, 3], migrator_a.get_all_versions)
migrator_a.rollback
assert_equal([1, 2], migrator_a.get_all_versions)
migrator_a.rollback
assert_equal([1], migrator_a.get_all_versions)
migrator_a.rollback
assert_equal([], migrator_a.get_all_versions)
_, migrator_b = migrator_class(2)
migrator_b = migrator_b.new(@path_b, @schema_migration_b)
migrator_b.migrate
assert_equal([1, 2], migrator_b.get_all_versions)
migrator_b.rollback
assert_equal([1], migrator_b.get_all_versions)
migrator_b.rollback
assert_equal([], migrator_b.get_all_versions)
end
def test_finds_pending_migrations
@schema_migration_a.create!(version: "1")
migration_list_a = [ActiveRecord::Migration.new("foo", 1), ActiveRecord::Migration.new("bar", 3)]
migrations_a = ActiveRecord::Migrator.new(:up, migration_list_a, @schema_migration_a).pending_migrations
assert_equal 1, migrations_a.size
assert_equal migration_list_a.last, migrations_a.first
@schema_migration_b.create!(version: "1")
migration_list_b = [ActiveRecord::Migration.new("foo", 1), ActiveRecord::Migration.new("bar", 3)]
migrations_b = ActiveRecord::Migrator.new(:up, migration_list_b, @schema_migration_b).pending_migrations
assert_equal 1, migrations_b.size
assert_equal migration_list_b.last, migrations_b.first
end
def test_migrator_db_has_no_schema_migrations_table
_, migrator = migrator_class(3)
migrator = migrator.new(@path_a, @schema_migration_a)
@schema_migration_a.drop_table
assert_not @connection_a.table_exists?("schema_migrations")
migrator.migrate(1)
assert @connection_a.table_exists?("schema_migrations")
_, migrator = migrator_class(3)
migrator = migrator.new(@path_b, @schema_migration_b)
@schema_migration_b.drop_table
assert_not @connection_b.table_exists?("schema_migrations")
migrator.migrate(1)
assert @connection_b.table_exists?("schema_migrations")
end
def test_migrator_forward
_, migrator = migrator_class(3)
migrator = migrator.new(@path_a, @schema_migration_a)
migrator.migrate(1)
assert_equal(1, migrator.current_version)
migrator.forward(2)
assert_equal(3, migrator.current_version)
migrator.forward
assert_equal(3, migrator.current_version)
_, migrator_b = migrator_class(3)
migrator_b = migrator_b.new(@path_b, @schema_migration_b)
migrator_b.migrate(1)
assert_equal(1, migrator_b.current_version)
migrator_b.forward(2)
assert_equal(3, migrator_b.current_version)
migrator_b.forward
assert_equal(3, migrator_b.current_version)
end
private
def m(name, version)
x = Sensor.new name, version
x.extend(Module.new {
define_method(:up) { yield(:up, x); super() }
define_method(:down) { yield(:down, x); super() }
}) if block_given?
end
def sensors(count)
calls = []
migrations = count.times.map { |i|
m(nil, i + 1) { |c, migration|
calls << [c, migration.version]
}
}
[calls, migrations]
end
def migrator_class(count)
calls, migrations = sensors(count)
migrator = Class.new(ActiveRecord::MigrationContext) {
define_method(:migrations) { |*|
migrations
}
}
[calls, migrator]
end
end
|