blob: e9e76360b90d26291e5da211b9f4e6c6572eee6f (
plain)
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
|
require File.expand_path('../../../spec_helper', __FILE__)
require File.expand_path('../fixtures/classes', __FILE__)
describe "Comparable#<" do
it "calls #<=> on self with other and returns true if #<=> returns any Integer less than 0" do
a = ComparableSpecs::Weird.new(0)
b = ComparableSpecs::Weird.new(20)
a.should_receive(:<=>).any_number_of_times.and_return(-1)
(a < b).should == true
a.should_receive(:<=>).any_number_of_times.and_return(-0.1)
(a < b).should == true
a.should_receive(:<=>).any_number_of_times.and_return(-10000000)
(a < b).should == true
end
it "returns false if calling #<=> on self returns 0 or any Integer greater than 0" do
a = ComparableSpecs::Weird.new(0)
b = ComparableSpecs::Weird.new(10)
a.should_receive(:<=>).any_number_of_times.and_return(0)
(a < b).should == false
a.should_receive(:<=>).any_number_of_times.and_return(0.0)
(a < b).should == false
a.should_receive(:<=>).any_number_of_times.and_return(1.0)
(a < b).should == false
a.should_receive(:<=>).any_number_of_times.and_return(10000000)
(a < b).should == false
end
it "raises an ArgumentError if calling #<=> on self returns nil" do
a = ComparableSpecs::Weird.new(0)
b = ComparableSpecs::Weird.new(20)
a.should_receive(:<=>).any_number_of_times.and_return(nil)
lambda { (a < b) }.should raise_error(ArgumentError)
end
end
|
