40 lines
937 B
Ruby
40 lines
937 B
Ruby
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require File.expand_path('../../spec_helper', __FILE__)
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describe "The undef keyword" do
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it "undefines a method" do
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undef_class = Class.new do
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def meth(o); o; end
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end
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obj = undef_class.new
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obj.meth(5).should == 5
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undef_class.class_eval do
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undef meth
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end
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lambda { obj.meth(5) }.should raise_error(NoMethodError)
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end
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it "allows undefining multiple methods at a time" do
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undef_multiple = Class.new do
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def method1; end
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def method2; :nope; end
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undef :method1, :method2
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end
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obj = undef_multiple.new
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obj.respond_to?(:method1).should == false
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obj.respond_to?(:method2).should == false
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end
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it "raises a NameError when passed a missing name" do
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Class.new do
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lambda {
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undef not_exist
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}.should raise_error(NameError) { |e|
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# a NameError and not a NoMethodError
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e.class.should == NameError
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}
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end
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end
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end
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