mirror of
https://github.com/ruby/ruby.git
synced 2022-11-09 12:17:21 -05:00
21 lines
586 B
Ruby
21 lines
586 B
Ruby
require_relative '../../spec_helper'
|
|
require 'prime'
|
|
|
|
describe "Prime.instance" do
|
|
it "returns a object representing the set of prime numbers" do
|
|
Prime.instance.should be_kind_of(Prime)
|
|
end
|
|
|
|
it "returns a object with no obsolete features" do
|
|
Prime.instance.should_not respond_to(:succ)
|
|
Prime.instance.should_not respond_to(:next)
|
|
end
|
|
|
|
it "does not complain anything" do
|
|
-> { Prime.instance }.should_not complain
|
|
end
|
|
|
|
it "raises a ArgumentError when is called with some arguments" do
|
|
-> { Prime.instance(1) }.should raise_error(ArgumentError)
|
|
end
|
|
end
|