「🚧」 test: testing things, might broke.

src/contract/main.sol

@@ -2,4 +2,10 @@
 
 pragma solidity ^0.8;
 
-contract scoreStore {}
+contract scoreStore {
+    uint16 test = 0;
+
+    function up(uint16 plus) public {
+        test += plus;
+    }
+}

test/main.t.sol

@@ -0,0 +1,13 @@
+// SPDX-License-Identifier: MIT
+
+pragma solidity ^0.8;
+
+import "src/contract/main.sol";
+import "forge-std/Test.sol";
+
+contract mainTest is Test, scoreStore {
+    function testUp() public {
+        up(2);
+        assertEq(test, 2);
+    }
+}