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texel/gist:139761

Created July 2, 2009 22:28
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gistfile1.rb
# RSpec
expect { do_something }.to change { something.else }.from(nil).to(an_instance_of(FooClass))
# Mocha
expect { do_something }.to change { something.else }.from(nil).to(instance_of?(FooClass))
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