mirror of
https://github.com/ruby/ruby.git
synced 2022-11-09 12:17:21 -05:00
44 lines
1.4 KiB
Ruby
44 lines
1.4 KiB
Ruby
|
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
|