From DisneyCruise.com:
For sailings departing US and Canadian ports on or after June 7, 2022, fully vaccinated Guests who upload their pre-trip test results to the Safe Passage website by midnight prior to embarkation day will be exempt from embarkation testing. All other fully vaccinated Guests must be tested at the terminal before boarding and will be charged for the cost of the test. The cost of embarkation tests for fully vaccinated Guests will be $74.00 (USD) plus tax for the initial antigen test, and, if needed, $125.00 (USD) plus tax for a confirmatory PCR test, charged at the time of service. For Canada sailings, the cost of embarkation tests for fully vaccinated Guests will be $95.00 (CAD) plus GST for the initial antigen test, and, if needed, $160.00 (CAD) plus GST for a confirmatory PCR test, charged at the time of service. Completing pre-trip testing prior to embarkation day enhances the efficiency of boarding the ship and confirms you are negative for COVID-19 prior to traveling to the terminal.