test: add methods to support Hardhat forking with JSON-RPC mock (#52)

Signed-off-by: Luis Mastrangelo <luis@swirldslabs.com>
hashgraph · Oct 3, 2024 · b0b35f3 · b0b35f3
1 parent eedd6b1
commit b0b35f3
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Showing 2 changed files with 58 additions and 4 deletions.
diff --git a/scripts/json-rpc-mock.js b/scripts/json-rpc-mock.js
@@ -68,12 +68,12 @@ const isHIP719Contract = address => Object
     .includes(address.toLowerCase());
 
 /**
- * Function signature for `eth_*` method handlers.
+ * Function signature for `eth_*` and `net_*` method handlers.
  * The `params` argument comes from the JSON-RPC request,
  * so it must to be declared as `unknown[]`.
  * Therefore, each method handler should validate each element of `params` they use.
  * 
- * @typedef {(params: unknown[], reqId: string) => Promise<string>} EthHandler
+ * @typedef {(params: unknown[], reqId: string) => Promise<unknown>} EthHandler
  */
 
 /**
@@ -83,6 +83,21 @@ const isHIP719Contract = address => Object
  * Official Ethereum JSON-RPC spec can be found at https://ethereum.github.io/execution-apis/api-documentation/.
  */
 const eth = {
+
+    /**
+     * https://docs.infura.io/api/networks/ethereum/json-rpc-methods/net_version
+     * 
+     * @type {EthHandler}
+     */
+    net_version: async () => parseInt('0x12b').toString(),
+
+    /**
+     * https://docs.infura.io/api/networks/ethereum/json-rpc-methods/eth_chainid
+     * 
+     * @type {EthHandler}
+     */
+    eth_chainId: async () => '0x12b',
+
     /** 
      * https://docs.infura.io/api/networks/ethereum/json-rpc-methods/eth_blocknumber
      * 
@@ -98,11 +113,25 @@ const eth = {
     eth_gasPrice: async () => '0x1802ba9f400',
 
     /**
-     * https://docs.infura.io/api/networks/ethereum/json-rpc-methods/eth_chainid
+     * https://docs.infura.io/api/networks/ethereum/json-rpc-methods/eth_feehistory
      * 
      * @type {EthHandler}
      */
-    eth_chainId: async () => '0x12b',
+    eth_feeHistory: async () => ({
+        "baseFeePerGas": [
+          "0x192cc091400",
+          "0x192cc091400"
+        ],
+        "gasUsedRatio": [
+          0.5
+        ],
+        "oldestBlock": "0x8e1376",
+        "reward": [
+          [
+            "0x0"
+          ]
+        ]
+      }),
 
     /**
      * https://docs.infura.io/api/networks/ethereum/json-rpc-methods/eth_getblockbynumber

diff --git a/scripts/mock/eth_getBlockByNumber_0x8112e4.json b/scripts/mock/eth_getBlockByNumber_0x8112e4.json
@@ -0,0 +1,25 @@
+{
+    "timestamp": "0x66cf73c4",
+    "difficulty": "0x0",
+    "extraData": "0x",
+    "gasLimit": "0xe4e1c0",
+    "baseFeePerGas": "0x192cc091400",
+    "gasUsed": "0x0",
+    "logsBloom": "0x00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000",
+    "miner": "0x0000000000000000000000000000000000000000",
+    "mixHash": "0x0000000000000000000000000000000000000000000000000000000000000000",
+    "nonce": "0x0000000000000000",
+    "receiptsRoot": "0x0000000000000000000000000000000000000000000000000000000000000000",
+    "sha3Uncles": "0x1dcc4de8dec75d7aab85b567b6ccd41ad312451b948a7413f0a142fd40d49347",
+    "size": "0x98d",
+    "stateRoot": "0x56e81f171bcc55a6ff8345e692c0f86e5b48e01b996cadc001622fb5e363b421",
+    "totalDifficulty": "0x0",
+    "transactions": [],
+    "transactionsRoot": "0x56e81f171bcc55a6ff8345e692c0f86e5b48e01b996cadc001622fb5e363b421",
+    "uncles": [],
+    "withdrawals": [],
+    "withdrawalsRoot": "0x0000000000000000000000000000000000000000000000000000000000000000",
+    "number": "0x8112e4",
+    "hash": "0x79ec2e97e363c3a78b3ef8e55bc7b0f0968fdf5d693da8180fcd1cb63bb5133e",
+    "parentHash": "0xfbefad89c5d301dea4fbef73d0df4a13b6fe42c9cefc73742ebaa954e17d5e47"
+}