This conversion is done by Transpec 2.3.6 with the following command:
transpec -f -c "bundle exec rake spec"
* 69 conversions
from: it { should ... }
to: it { is_expected.to ... }
* 48 conversions
from: obj.should
to: expect(obj).to
* 34 conversions
from: == expected
to: eq(expected)
* 4 conversions
from: it { should_not ... }
to: it { is_expected.not_to ... }
* 3 conversions
from: obj.should_not
to: expect(obj).not_to
* 2 conversions
from: lambda { }.should
to: expect { }.to
* 2 conversions
from: pending
to: skip
For more details: https://github.com/yujinakayama/transpec#supported-conversions
