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require 'helper'
describe Pry::WrappedModule do
describe "#initialize" do
it "should raise an exception when a non-module is passed" do
lambda{ Pry::WrappedModule.new(nil) }.should.raise ArgumentError
end
end
describe ".method_prefix" do
before do
Foo = Class.new
@foo = Foo.new
end
after do
Object.remove_const(:Foo)
end
it "should return Foo# for normal classes" do
Pry::WrappedModule.new(Foo).method_prefix.should == "Foo#"
end
it "should return Bar# for modules" do
Pry::WrappedModule.new(Kernel).method_prefix.should == "Kernel#"
end
it "should return Foo. for singleton classes of classes" do
Pry::WrappedModule.new(class << Foo; self; end).method_prefix.should == "Foo."
end
describe "of singleton classes of objects" do
Pry::WrappedModule.new(class << @foo; self; end).method_prefix.should == "self."
end
describe "of anonymous classes should not be empty" do
Pry::WrappedModule.new(Class.new).method_prefix.should =~ /#<Class:.*>#/
end
describe "of singleton classes of anonymous classes should not be empty" do
Pry::WrappedModule.new(class << Class.new; self; end).method_prefix.should =~ /#<Class:.*>./
end
end
describe ".singleton_class?" do
it "should be true for singleton classes" do
Pry::WrappedModule.new(class << ""; self; end).singleton_class?.should == true
end
it "should be false for normal classes" do
Pry::WrappedModule.new(Class.new).singleton_class?.should == false
end
it "should be false for modules" do
Pry::WrappedModule.new(Module.new).singleton_class?.should == false
end
end
describe ".singleton_instance" do
it "should raise an exception when called on a non-singleton-class" do
lambda{ Pry::WrappedModule.new(Class).singleton_instance }.should.raise ArgumentError
end
it "should return the attached object" do
Pry::WrappedModule.new(class << "hi"; self; end).singleton_instance.should == "hi"
Pry::WrappedModule.new(class << Object; self; end).singleton_instance.should.equal?(Object)
end
end
end
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