write public class @Test

$//$ void testBoatHasAnOwner$()$

$//\{$

$//$ Person owner $=$ new Person$("$Alexandra Keaton", $"858-555-1313","92123")$;

$//$ Boat boat $=$ new Boat$("$SailyBoat$",$ Color.MAGENTA$)$;

$//$ boat.setPrice$(188888)$;

$//$ boat.setOwner$($owner$)$;

$//$ assertEquals$("$Alexandra Keaton", boat.getOwner$().$getName$())$;

$////$ Owner changes name

$//$ owner.setName$("$Alexandra Smith"$)$;

$//$ assertEquals$("$Alexandra Smith", boat.getOwner$().$getName$())$;

$//\}$

$//$

$//$ @Test

$//$ void testBoatHasACaptain$()$

$//\{$

$//$ Person owner $=$ new Person$("$Alexandra Keaton", $"858-555-1313","92123")$;

$//$ Person captain $=$ new Person$("$Cappy Tain", $"858-555-999","92101")$;

$//$ Boat boat $=$ new Boat$("$McBoatFace$",$ Color.BLUE$)$;

$//$ boat.setOwner$($owner$)$;

$//$ boat.setCaptain$($captain$)$;

$//$ assertEquals$("$Cappy Tain", boat.getCaptain$().$getName$())$;

$////$ Captain changes name

$//$ captain.setName$("$Haddock$")$;

$//$ assertEquals$("$Haddock$",$ boat.getCaptain$().$getName$())$;

$////$ Owner stays the same

$//$ assertEquals$("$Alexandra Keaton", boat.getOwner$().$getName$())$;

$//\}$

$//$

$//$ @Test

$//$ void testHarbor$()$

$//\{$

$////$ A harbor has$-$many boats

$//$

$//$ Boat boat$1=$ new Boat$("$BMC$",$ Color.GREEN$)$;

$//$ Boat boat$2=$ new Boat$("$BMX$",$ Color.RED$)$;

$//$ Boat boat$3=$ new Boat$("$UXB$",$ Color.YELLOW$)$;

$//$

$////$ Harbor is empty when just created

$//$ Harbor stock $=$ new Harbor$(5)$;

$//$ assertEquals$($null$,$ stock.getBoatAt$(0))$;

$//$ assertEquals$($null$,$ stock.getBoatAt$(1))$;

$//$ assertEquals$($null$,$ stock.getBoatAt$(2))$;

$//$ assertEquals$($null$,$ stock.getBoatAt$(3))$;

$//$ assertEquals$($null$,$ stock.getBoatAt$(4))$;

$//$

$////$ Hint: parkBoatAt is not just an accessor, and not just a mutator

$////$ Park new boat, and return the boat the was parked there

$//$ assertEquals$($null$,$ stock.parkBoatAt$($boat$1,3))$;

$//$ Boat retrievedBoat $=$ stock.parkBoatAt$($boat$2,3)$;

$//$ assertEquals$($boat$1,$ retrievedBoat$)$;

$//$ retrievedBoat $=$ stock.parkBoatAt$($boat$3,3)$;

$//$ assertEquals$($boat$2,$ retrievedBoat$)$;

$//$ Boat$[]$ inventory $=$ stock.getInventory$()$;

$//$ assertArrayEquals$($new Boat$[]\{$null$,$ null, null, boat$3,$ null$\},$ inventory$)$;

$//$ stock.parkBoatAt$($boat$2,1)$;

$////$ The inventory is a carbon copy list of boats that is handed out to interested parties.

$////$ But these parties cannot change the inventory, only the harbor can do that.

$//$ assertArrayEquals$($new Boat$[]\{$null$,$ null, null, boat$3,$ null$\},$ inventory$)$; $//$ This is correct!

$//$ assertArrayEquals$($new Boat$[]\{$null$,$ boat$2,$ null, boat$3,$ null$\},$ stock.getInventory$())$;

$//\}$