From 0787aced97e70e439aa96e0b7dea272044d7a93a Mon Sep 17 00:00:00 2001
From: Kevin Ingersoll <kingersoll@gmail.com>
Date: Tue, 1 Aug 2023 19:24:59 +0100
Subject: [PATCH] add test (but it doesn't work yet)

---
 src/utils/transaction/prepareRequest.test.ts | 36 ++++++++++++++++++++
 1 file changed, 36 insertions(+)

diff --git a/src/utils/transaction/prepareRequest.test.ts b/src/utils/transaction/prepareRequest.test.ts
index 10c696e93b..5064acdce0 100644
--- a/src/utils/transaction/prepareRequest.test.ts
+++ b/src/utils/transaction/prepareRequest.test.ts
@@ -70,6 +70,42 @@ describe('prepareRequest', () => {
     `)
   })
 
+  test('zero base fee', async () => {
+    await setup()
+    await setNextBlockBaseFeePerGas(testClient, {
+      baseFeePerGas: 0n,
+    })
+
+    const {
+      maxFeePerGas,
+      nonce: _nonce,
+      ...rest
+    } = await prepareRequest(walletClient, {
+      account: privateKeyToAccount(sourceAccount.privateKey),
+      to: targetAccount.address,
+      value: parseEther('1'),
+    })
+    expect(maxFeePerGas).toEqual(0n)
+    expect(rest).toMatchInlineSnapshot(`
+      {
+        "account": {
+          "address": "0xf39Fd6e51aad88F6F4ce6aB8827279cffFb92266",
+          "publicKey": "0x048318535b54105d4a7aae60c08fc45f9687181b4fdfc625bd1a753fa7397fed753547f11ca8696646f2f3acb08e31016afac23e630c5d11f59f61fef57b0d2aa5",
+          "signMessage": [Function],
+          "signTransaction": [Function],
+          "signTypedData": [Function],
+          "source": "privateKey",
+          "type": "local",
+        },
+        "from": "0xf39Fd6e51aad88F6F4ce6aB8827279cffFb92266",
+        "gas": 21000n,
+        "maxPriorityFeePerGas": 1500000000n,
+        "to": "0x70997970c51812dc3a010c7d01b50e0d17dc79c8",
+        "value": 1000000000000000000n,
+      }
+    `)
+  })
+
   test('legacy fees', async () => {
     await setup()