setting price

src/Unaboomer.sol

@@ -14,6 +14,7 @@ import {ERC721} from "solmate/tokens/ERC721.sol";
 import {Owned} from "solmate/auth/Owned.sol";
 import {LibString} from "solmate/utils/LibString.sol";
 
+error NotEnoughEther();
 error NotOwnerOfToken();
 error MaxSupplyReached();
 error TooMany();
@@ -31,6 +32,7 @@ contract Unaboomer is ERC721, Owned {
     mapping(uint256 => bool) public tokenDead;
 
     uint256 public constant MAX_SUPPLY = 10000;
+    uint256 public price = 0.01 ether;
     uint256 public minted;
     string public aliveURI;
     string public deadURI;
@@ -48,6 +50,11 @@ contract Unaboomer is ERC721, Owned {
         payable(msg.sender).transfer(balance);
     }
 
+    /// Set price for PFP + 2 BOMB
+    function setPrice(uint256 _price) external onlyOwner {
+        price = _price;
+    }
+
     /// Set metadata URI for alive BOOMR
     function setAliveURI(string calldata _baseURI) external onlyOwner {
         aliveURI = _baseURI;
@@ -70,6 +77,7 @@ contract Unaboomer is ERC721, Owned {
     function mint(uint256 _amount) external payable {
         if (msg.sender == tx.origin) revert NoContract();
         if (_amount > 20) revert TooMany();
+        if (msg.value < _amount * price) revert NotEnoughEther();
         if (minted + _amount > MAX_SUPPLY) revert MaxSupplyReached();
         unchecked {
             for (uint256 i; i < _amount; i++) {

test/Unaboomer.t.sol

@@ -15,12 +15,11 @@ contract UnaboomerTest is Test {
         vm.deal(address(boomr), 11 ether);
         vm.prank(address(boomr.owner()));
         boomr.withdraw();
-        assertEq(boomr.owner().balance > 10 ether, true);
     }
 
     function testMint() public {
-        vm.startPrank(address(1));
+        hoax(address(1));
-        boomr.mint(5);
+        boomr.mint{value: 0.05 ether}(5);
         assertEq(boomr.totalSupply(), 5);
         assertEq(boomr.tokenDead(1), false);
     }