Assert a value of an option is (or is not) the selected one.
Examples
Then the "Size" option should be "M"
Then the "Color" option should be "Blue"
And the "Size" option should not be "XL"
Then the "Color" option should be "Orange"
Then the "Size" option should be "S"
Pattern
Then(/^the "([^"]*)" option should( not)* be "([^"]*)"$/, …)
Part of @webship-js/magento-steps (github.com/webship/magento-steps), a step pack for Webship-js 2.0.x.