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
|
require File.join(File.dirname(__FILE__), '..', 'spec_helper')
describe SelectionRelation do
before do
@relation1 = TableRelation.new(:foo)
@relation2 = TableRelation.new(:bar)
@predicate1 = EqualityPredicate.new(@relation1[:id], @relation2[:foo_id])
@predicate2 = LessThanPredicate.new(@relation1[:age], 2)
end
describe SelectionRelation, '==' do
it "obtains if both the predicate and the relation are identical" do
SelectionRelation.new(@relation1, @predicate1). \
should == SelectionRelation.new(@relation1, @predicate1)
SelectionRelation.new(@relation1, @predicate1). \
should_not == SelectionRelation.new(@relation2, @predicate1)
SelectionRelation.new(@relation1, @predicate1). \
should_not == SelectionRelation.new(@relation1, @predicate2)
end
end
describe SelectionRelation, '#initialize' do
it "manufactures nested selection relations if multiple predicates are provided" do
SelectionRelation.new(@relation1, @predicate1, @predicate2). \
should == SelectionRelation.new(SelectionRelation.new(@relation1, @predicate2), @predicate1)
end
end
end
|
