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401b64c4e8
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@62656 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
30 lines
1.1 KiB
Ruby
30 lines
1.1 KiB
Ruby
require_relative '../../spec_helper'
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require_relative 'fixtures/classes'
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describe "Singleton.instance" do
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it "returns an instance of the singleton class" do
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SingletonSpecs::MyClass.instance.should be_kind_of(SingletonSpecs::MyClass)
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end
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it "returns the same instance for multiple calls to instance" do
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SingletonSpecs::MyClass.instance.should equal(SingletonSpecs::MyClass.instance)
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end
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it "returns an instance of the singleton's subclasses" do
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SingletonSpecs::MyClassChild.instance.should be_kind_of(SingletonSpecs::MyClassChild)
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end
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it "returns the same instance for multiple class to instance on subclasses" do
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SingletonSpecs::MyClassChild.instance.should equal(SingletonSpecs::MyClassChild.instance)
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end
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it "returns an instance of the singleton's clone" do
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klone = SingletonSpecs::MyClassChild.clone
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klone.instance.should be_kind_of(klone)
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end
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it "returns the same instance for multiple class to instance on clones" do
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klone = SingletonSpecs::MyClassChild.clone
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klone.instance.should equal(klone.instance)
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end
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end
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