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require_relative '../../spec_helper'
require_relative 'fixtures/classes'
describe "Module#class_variables" do
it "returns an Array with the names of class variables of self" do
ModuleSpecs::ClassVars::A.class_variables.should include(:@@a_cvar)
ModuleSpecs::ClassVars::M.class_variables.should include(:@@m_cvar)
end
it "returns an Array of Symbols of class variable names defined in a metaclass" do
obj = mock("metaclass class variable")
meta = obj.singleton_class
meta.send :class_variable_set, :@@var, :cvar_value
meta.class_variables.should == [:@@var]
end
it "returns an Array with names of class variables defined in metaclasses" do
ModuleSpecs::CVars.class_variables.should include(:@@cls, :@@meta)
end
it "does not return class variables defined in extended modules" do
c = Class.new
c.extend ModuleSpecs::MVars
c.class_variables.should_not include(:@@mvar)
end
it "returns the correct class variables when inherit is given" do
ModuleSpecs::SubCVars.class_variables(false).should == [:@@sub]
ModuleSpecs::SubCVars.new.singleton_class.class_variables(false).should == []
ModuleSpecs::SubCVars.class_variables(true).should == [:@@sub, :@@cls, :@@meta]
ModuleSpecs::SubCVars.new.singleton_class.class_variables(true).should == [:@@sub, :@@cls, :@@meta]
end
end
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