From ecac0ba36243d94c9199d0bd21937104c835d9a0 Mon Sep 17 00:00:00 2001
From: Tom Meagher <tom@meagher.co>
Date: Tue, 5 Nov 2024 18:36:10 -0500
Subject: [PATCH] fix: #4353

---
 .changeset/three-sloths-beam.md              |  5 ++
 packages/core/src/actions/getBalance.test.ts | 74 +++++++++++---------
 packages/core/src/actions/getBalance.ts      | 18 ++---
 3 files changed, 54 insertions(+), 43 deletions(-)
 create mode 100644 .changeset/three-sloths-beam.md

diff --git a/.changeset/three-sloths-beam.md b/.changeset/three-sloths-beam.md
new file mode 100644
index 0000000000..3c3067c538
--- /dev/null
+++ b/.changeset/three-sloths-beam.md
@@ -0,0 +1,5 @@
+---
+"@wagmi/core": patch
+---
+
+Fixed `getBalance` symbol error handling.
diff --git a/packages/core/src/actions/getBalance.test.ts b/packages/core/src/actions/getBalance.test.ts
index f2d7354c36..954c09c2e6 100644
--- a/packages/core/src/actions/getBalance.test.ts
+++ b/packages/core/src/actions/getBalance.test.ts
@@ -1,6 +1,6 @@
 import { accounts, chain, config, testClient } from '@wagmi/test'
 import { parseEther } from 'viem'
-import { beforeEach, describe, expect, test } from 'vitest'
+import { beforeEach, expect, test } from 'vitest'
 
 import { getBalance } from './getBalance.js'
 
@@ -19,11 +19,8 @@ beforeEach(async () => {
   await testClient.mainnet2.mine({ blocks: 1 })
 })
 
-describe('getBalance', () => {
-  test('default', async () => {
-    await expect(
-      getBalance(config, { address }),
-    ).resolves.toMatchInlineSnapshot(`
+test('default', async () => {
+  await expect(getBalance(config, { address })).resolves.toMatchInlineSnapshot(`
       {
         "decimals": 18,
         "formatted": "10000",
@@ -32,13 +29,11 @@ describe('getBalance', () => {
       }
     `)
 
-    await testClient.mainnet.setBalance({
-      address,
-      value: parseEther('6969.12222215666'),
-    })
-    await expect(
-      getBalance(config, { address }),
-    ).resolves.toMatchInlineSnapshot(`
+  await testClient.mainnet.setBalance({
+    address,
+    value: parseEther('6969.12222215666'),
+  })
+  await expect(getBalance(config, { address })).resolves.toMatchInlineSnapshot(`
       {
         "decimals": 18,
         "formatted": "6969.12222215666",
@@ -46,12 +41,12 @@ describe('getBalance', () => {
         "value": 6969122222156660000000n,
       }
     `)
-  })
+})
 
-  test('parameters: chainId', async () => {
-    await expect(
-      getBalance(config, { address, chainId: chain.mainnet2.id }),
-    ).resolves.toMatchInlineSnapshot(`
+test('parameters: chainId', async () => {
+  await expect(
+    getBalance(config, { address, chainId: chain.mainnet2.id }),
+  ).resolves.toMatchInlineSnapshot(`
       {
         "decimals": 18,
         "formatted": "420",
@@ -59,15 +54,15 @@ describe('getBalance', () => {
         "value": 420000000000000000000n,
       }
     `)
-  })
+})
 
-  test('parameters: token', async () => {
-    await expect(
-      getBalance(config, {
-        address: '0x4557B18E779944BFE9d78A672452331C186a9f48',
-        token: '0x6B175474E89094C44Da98b954EedeAC495271d0F',
-      }),
-    ).resolves.toMatchInlineSnapshot(`
+test('parameters: token', async () => {
+  await expect(
+    getBalance(config, {
+      address: '0x4557B18E779944BFE9d78A672452331C186a9f48',
+      token: '0x6B175474E89094C44Da98b954EedeAC495271d0F',
+    }),
+  ).resolves.toMatchInlineSnapshot(`
       {
         "decimals": 18,
         "formatted": "0.559062564299199392",
@@ -75,12 +70,28 @@ describe('getBalance', () => {
         "value": 559062564299199392n,
       }
     `)
-  })
+})
 
-  test('parameters: unit', async () => {
-    await expect(
-      getBalance(config, { address, unit: 'wei' }),
-    ).resolves.toMatchInlineSnapshot(`
+test('parameters: token (bytes32 symbol)', async () => {
+  await expect(
+    getBalance(config, {
+      address: '0x4557B18E779944BFE9d78A672452331C186a9f48',
+      token: '0x9f8f72aa9304c8b593d555f12ef6589cc3a579a2',
+    }),
+  ).resolves.toMatchInlineSnapshot(`
+    {
+      "decimals": 18,
+      "formatted": "0",
+      "symbol": "MKR",
+      "value": 0n,
+    }
+  `)
+})
+
+test('parameters: unit', async () => {
+  await expect(
+    getBalance(config, { address, unit: 'wei' }),
+  ).resolves.toMatchInlineSnapshot(`
       {
         "decimals": 18,
         "formatted": "10000000000000000000000",
@@ -88,5 +99,4 @@ describe('getBalance', () => {
         "value": 10000000000000000000000n,
       }
     `)
-  })
 })
diff --git a/packages/core/src/actions/getBalance.ts b/packages/core/src/actions/getBalance.ts
index 63d079d25a..1aae5667b1 100644
--- a/packages/core/src/actions/getBalance.ts
+++ b/packages/core/src/actions/getBalance.ts
@@ -1,11 +1,4 @@
-import {
-  type Address,
-  ContractFunctionExecutionError,
-  type Hex,
-  formatUnits,
-  hexToString,
-  trim,
-} from 'viem'
+import { type Address, type Hex, formatUnits, hexToString, trim } from 'viem'
 import {
   type GetBalanceErrorType as viem_GetBalanceErrorType,
   type GetBalanceParameters as viem_GetBalanceParameters,
@@ -18,7 +11,7 @@ import type { Unit } from '../types/unit.js'
 import type { Compute } from '../types/utils.js'
 import { getAction } from '../utils/getAction.js'
 import { getUnit } from '../utils/getUnit.js'
-import { readContracts } from './readContracts.js'
+import { type ReadContractsErrorType, readContracts } from './readContracts.js'
 
 export type GetBalanceParameters<config extends Config = Config> = Compute<
   ChainIdParameter<config> &
@@ -56,7 +49,7 @@ export async function getBalance<config extends Config>(
 
   if (tokenAddress) {
     try {
-      return getTokenBalance(config, {
+      return await getTokenBalance(config, {
         balanceAddress: address,
         chainId,
         symbolType: 'string',
@@ -66,7 +59,10 @@ export async function getBalance<config extends Config>(
       // In the chance that there is an error upon decoding the contract result,
       // it could be likely that the contract data is represented as bytes32 instead
       // of a string.
-      if (error instanceof ContractFunctionExecutionError) {
+      if (
+        (error as ReadContractsErrorType).name ===
+        'ContractFunctionExecutionError'
+      ) {
         const balance = await getTokenBalance(config, {
           balanceAddress: address,
           chainId,