`x.should_receive(y)` -> `expect(x).to receive(y)`
`x.should_receive(y)` -> `expect(x).to receive(y)`

$ sed -i '' -e 's/\([a-z_A-Z]*\).should_receive/expect(\1).to receive/' $path

metavida/ruby-oembed,judofyr/ruby-oembed,ruby-oembed/ruby-oembed