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
|
require 'cases/helper'
if ActiveRecord::Base.connection.supports_foreign_keys?
module ActiveRecord
class Migration
class ForeignKeyTest < ActiveRecord::TestCase
class Rocket < ActiveRecord::Base
end
class Astronaut < ActiveRecord::Base
end
setup do
@connection = ActiveRecord::Base.connection
@connection.create_table "rockets" do |t|
t.string :name
end
@connection.create_table "astronauts" do |t|
t.string :name
t.references :rocket
end
end
teardown do
if defined?(@connection)
@connection.execute "DROP TABLE IF EXISTS astronauts"
@connection.execute "DROP TABLE IF EXISTS rockets"
end
end
def test_foreign_keys
foreign_keys = @connection.foreign_keys("fk_test_has_fk")
assert_equal 1, foreign_keys.size
fk = foreign_keys.first
assert_equal "fk_test_has_fk", fk.from_table
assert_equal "fk_test_has_pk", fk.to_table
assert_equal "fk_id", fk.column
assert_equal "id", fk.primary_key
assert_equal "fk_name", fk.name
end
def test_add_foreign_key
@connection.add_foreign_key :astronauts, :rockets, column: "rocket_id"
foreign_keys = @connection.foreign_keys("astronauts")
assert_equal 1, foreign_keys.size
fk = foreign_keys.first
assert_equal "astronauts", fk.from_table
assert_equal "rockets", fk.to_table
assert_equal "rocket_id", fk.column
assert_equal "id", fk.primary_key
assert_equal "astronauts_rocket_id_fk", fk.name
end
def test_remove_foreign_key
@connection.add_foreign_key :astronauts, :rockets, column: "rocket_id"
assert_equal 1, @connection.foreign_keys("astronauts").size
@connection.remove_foreign_key :astronauts, column: "rocket_id"
assert_equal [], @connection.foreign_keys("astronauts")
end
def test_remove_foreign_key_by_name
@connection.add_foreign_key :astronauts, :rockets, column: "rocket_id", name: "fancy_named_fk"
assert_equal 1, @connection.foreign_keys("astronauts").size
@connection.remove_foreign_key :astronauts, name: "fancy_named_fk"
assert_equal [], @connection.foreign_keys("astronauts")
end
end
end
end
end
|
