This conversion is done by Transpec 3.1.0 with the following command:
transpec spec/acceptance/
* 16 conversions
from: it { should ... }
to: it { is_expected.to ... }
* 6 conversions
from: obj.should
to: expect(obj).to
* 5 conversions
from: == expected
to: eq(expected)
* 1 conversion
from: it { should_not ... }
to: it { is_expected.not_to ... }
For more details: https://github.com/yujinakayama/transpec#supported-conversions
