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require File.expand_path('../../../../spec_helper', __FILE__)
require File.expand_path('../../fixtures/classes', __FILE__)
describe "Delegator#method" do
before :each do
@simple = DelegateSpecs::Simple.new
@delegate = DelegateSpecs::Delegator.new(@simple)
end
it "returns a method object for public methods of the delegate object" do
m = @delegate.method(:pub)
m.should be_an_instance_of(Method)
m.call.should == :foo
end
it "raises a NameError for protected methods of the delegate object" do
lambda {
-> {
@delegate.method(:prot)
}.should complain(/delegator does not forward private method #prot/)
}.should raise_error(NameError)
end
it "raises a NameError for a private methods of the delegate object" do
lambda {
-> {
@delegate.method(:priv)
}.should complain(/delegator does not forward private method #priv/)
}.should raise_error(NameError)
end
it "returns a method object for public methods of the Delegator class" do
m = @delegate.method(:extra)
m.should be_an_instance_of(Method)
m.call.should == :cheese
end
it "returns a method object for protected methods of the Delegator class" do
m = @delegate.method(:extra_protected)
m.should be_an_instance_of(Method)
m.call.should == :baz
end
it "returns a method object for private methods of the Delegator class" do
m = @delegate.method(:extra_private)
m.should be_an_instance_of(Method)
m.call.should == :bar
end
it "raises a NameError for an invalid method name" do
lambda {
@delegate.method(:invalid_and_silly_method_name)
}.should raise_error(NameError)
end
it "returns a method that respond_to_missing?" do
m = @delegate.method(:pub_too)
m.should be_an_instance_of(Method)
m.call.should == :pub_too
end
it "raises a NameError if method is no longer valid because object has changed" do
m = @delegate.method(:pub)
@delegate.__setobj__([1,2,3])
lambda {
m.call
}.should raise_error(NameError)
end
end
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