blob: 9a67ec3478a1341e68d90e8b77c2db402f0f6ad8 (
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
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
|
require 'test_helper'
module Arel
describe Table do
before do
@relation = Table.new(:users)
end
describe 'primary_key' do
it 'should return an attribute' do
@relation.primary_key.name.must_equal :id
end
end
describe 'select_manager' do
it 'should return an empty select manager' do
sm = @relation.select_manager
sm.to_sql.must_be_like 'SELECT'
end
end
describe 'having' do
it 'adds a having clause' do
mgr = @relation.having @relation[:id].eq(10)
mgr.to_sql.must_be_like %{
SELECT FROM "users" HAVING "users"."id" = 10
}
end
end
describe 'backwards compat' do
describe 'joins' do
it 'returns nil' do
@relation.joins(nil).must_equal nil
end
end
describe 'join' do
it 'noops on nil' do
mgr = @relation.join nil
mgr.to_sql.must_be_like %{ SELECT FROM "users" }
end
it 'takes a second argument for join type' do
right = @relation.alias
predicate = @relation[:id].eq(right[:id])
mgr = @relation.join(right, Nodes::OuterJoin).on(predicate)
mgr.to_sql.must_be_like %{
SELECT FROM "users"
LEFT OUTER JOIN "users" "users_2"
ON "users"."id" = "users_2"."id"
}
end
end
end
describe 'group' do
it 'should create a group' do
manager = @relation.group @relation[:id]
manager.to_sql.must_be_like %{
SELECT FROM "users" GROUP BY "users"."id"
}
end
end
describe 'alias' do
it 'should create a node that proxies to a table' do
@relation.aliases.must_equal []
node = @relation.alias
@relation.aliases.must_equal [node]
node.name.must_equal 'users_2'
node[:id].relation.must_equal node
end
end
describe 'new' do
it 'takes :columns' do
columns = Table.engine.connection.columns("users")
@relation = Table.new(:users, :columns => columns)
@relation.columns.first.name.must_equal :id
@relation.engine.must_equal Table.engine
end
it 'should accept an engine' do
rel = Table.new :users, 'foo'
rel.engine.must_equal 'foo'
end
it 'should accept a hash' do
rel = Table.new :users, :engine => 'foo'
rel.engine.must_equal 'foo'
end
it 'ignores as if it equals name' do
rel = Table.new :users, :as => 'users'
rel.table_alias.must_be_nil
end
end
describe 'order' do
it "should take an order" do
manager = @relation.order "foo"
manager.to_sql.must_be_like %{ SELECT FROM "users" ORDER BY foo }
end
end
describe 'take' do
it "should add a limit" do
manager = @relation.take 1
manager.project SqlLiteral.new '*'
manager.to_sql.must_be_like %{ SELECT * FROM "users" LIMIT 1 }
end
end
describe 'project' do
it 'can project' do
manager = @relation.project SqlLiteral.new '*'
manager.to_sql.must_be_like %{ SELECT * FROM "users" }
end
it 'takes multiple parameters' do
manager = @relation.project SqlLiteral.new('*'), SqlLiteral.new('*')
manager.to_sql.must_be_like %{ SELECT *, * FROM "users" }
end
end
describe 'where' do
it "returns a tree manager" do
manager = @relation.where @relation[:id].eq 1
manager.project @relation[:id]
manager.must_be_kind_of TreeManager
manager.to_sql.must_be_like %{
SELECT "users"."id"
FROM "users"
WHERE "users"."id" = 1
}
end
end
describe 'columns' do
it 'returns a list of columns' do
columns = @relation.columns
columns.length.must_equal 2
columns.map { |x| x.name.to_s }.sort.must_equal %w{ name id }.sort
end
end
it "should have a name" do
@relation.name.must_equal :users
end
it "should have an engine" do
@relation.engine.must_equal Table.engine
end
describe '[]' do
describe 'when given a Symbol' do
it "manufactures an attribute if the symbol names an attribute within the relation" do
column = @relation[:id]
column.name.must_equal :id
column.must_be_kind_of Attributes::Integer
end
end
describe 'when table does not exist' do
it 'returns nil' do
@relation[:foooo].must_be_nil
end
end
end
end
end
|
