73 lines
1.7 KiB
Ruby
73 lines
1.7 KiB
Ruby
require_relative '../spec_helper'
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describe "The undef keyword" do
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describe "undefines a method" do
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before :each 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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end
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it "with an identifier" do
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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 "with a simple symbol" do
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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 "with a single quoted symbol" do
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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 "with a double quoted symbol" do
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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 "with a interpolated symbol" do
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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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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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