add e2e case

Author: open-junius

evm-tests/src/contracts/alpha.ts

@@ -315,5 +315,18 @@ export const IAlphaABI = [
     ],
     "stateMutability": "view",
     "type": "function"
+  },
+  {
+    "inputs": [],
+    "name": "getCKBurn",
+    "outputs": [
+      {
+        "internalType": "uint256",
+        "name": "",
+        "type": "uint256"
+      }
+    ],
+    "stateMutability": "view",
+    "type": "function"
   }
 ]

evm-tests/test/alpha.precompile.test.ts

@@ -209,6 +209,21 @@ describe("Test Alpha Precompile", () => {
             assert.ok(typeof alphaIssuance === 'bigint', "Alpha issuance should be a bigint");
             assert.ok(alphaIssuance >= BigInt(0), "Alpha issuance should be non-negative");
         });
+
+        it("getCKBurn returns valid CK burn rate", async () => {
+            const ckBurn = await publicClient.readContract({
+                abi: IAlphaABI,
+                address: toViemAddress(IALPHA_ADDRESS),
+                functionName: "getCKBurn",
+                args: []
+            })
+
+            const ckBurnOnChain = await api.query.SubtensorModule.CKBurn.getValue()
+
+            assert.strictEqual(ckBurn, ckBurnOnChain, "CK burn should match on chain");
+            assert.ok(ckBurn !== undefined, "CK burn should be defined");
+            assert.ok(typeof ckBurn === 'bigint', "CK burn should be a bigint");
+        });
     });
 
     describe("Global Functions", () => {

precompiles/src/solidity/alpha.abi

@@ -313,5 +313,18 @@
     ],
     "stateMutability": "view",
     "type": "function"
+  },
+  {
+    "inputs": [],
+    "name": "getCKBurn",
+    "outputs": [
+      {
+        "internalType": "uint256",
+        "name": "",
+        "type": "uint256"
+      }
+    ],
+    "stateMutability": "view",
+    "type": "function"
   }
 ]

precompiles/src/solidity/alpha.sol

@@ -94,4 +94,8 @@ interface IAlpha {
     /// @dev Returns the sum of alpha prices for all subnets.
     /// @return The sum of alpha prices.
     function getSumAlphaPrice() external view returns (uint256);
+
+    /// @dev Returns the CK burn rate.
+    /// @return The CK burn rate.
+    function getCKBurn() external view returns (uint256);
 }