Empty the mailbox that catches the mail of the test site (worldParameters.mailUrl, a Mailpit), so the next e-mail is the one the scenario caused.
Examples
Given the mailbox is empty
And the mailbox is empty
When the mailbox is empty
But the mailbox is empty
* the mailbox is empty
Pattern
Given(/^the mailbox is empty$/, …)
Part of @webship-js/ghost-steps (github.com/webship/ghost-steps), a step pack for Webship-js 2.0.x.