diff --git a/test/DCO2s.t.sol b/test/DCO2s.t.sol
index d3a5c8e..cc2076b 100644
--- a/test/DCO2s.t.sol
+++ b/test/DCO2s.t.sol
@@ -1,7 +1,7 @@
 // SPDX-License-Identifier: UNLICENSED
 pragma solidity ^0.8.23;
 
-import {Test, console2} from "forge-std/Test.sol";
+import {Test, console} from "forge-std/Test.sol";
 import {DCO2s} from "../src/DCO2s.sol";
 
 contract DCO2sTest is Test {
@@ -19,14 +19,32 @@ contract DCO2sTest is Test {
     }
 
     // @notice: here we test getting the Base and full URIS
-    //function testGetURI() public {}
+    function testGetURI() public {
+        string memory _baseURL = "https://gateway.decentralizedscience.org/ipfs/";
+        string memory URI = "bafkreibc6p3y36yjmeqqnttqfrpb2yttxa6aonoywxwdxl7nqym4jj3jwa";
+        dco2sc.safeMint(address(1), URI);
+        string memory tokenURI = dco2sc.tokenURI(0);
+        console.log(tokenURI);
+        assertEq(tokenURI, string.concat(_baseURL,URI));
+
+    }
+
+    // @notice: checkFailed token Index
+    function testFailTokenIndex() public {
+        dco2sc.tokenURI(0);
+    }
+    // @notice: checkFailed token Index
+    //function testTokenIndex() public {
+    //    vm.expectRevert(bytes("ERC721NonexistentToken(0)"));
+    //    dco2sc.tokenURI(0);
+    //}
 
     // @notice use the basic Enumerable properties
     // function testEnumerable() public {}
 
     // @notice: testFailMintToZeroAddress test that cannot safe mint to address 0
     function testFailMintToZeroAddress() public {
-        dco2sc.safeMint(address(0),"qnttqfrpb2yttxa6aonoywxwdxl7nqym4jj3jwa");
+        dco2sc.safeMint(address(0),"bafkreibc6p3y36yjmeqqnttqfrpb2yttxa6aonoywxwdxl7nqym4jj3jwa");
     }
 
     // @notice testMintAll mints all the NFTs URIS and distribute to wallets
@@ -110,8 +128,6 @@ contract DCO2sTest is Test {
     //             assertEq(NFTs[i], dco2sc.)
     //         }
     // }
-    
-
 
 }