fix: getAddress regression (#2051)

* fix: `getAddress` regression

* Update violet-bugs-burn.md

.changeset/violet-bugs-burn.md

@@ -0,0 +1,5 @@
+---
+"viem": patch
+---
+
+Fixed regression where `getAddress` threw an error for non-checksum addresses instead of converting to a valid checksum address.

src/utils/address/getAddress.test.ts

@@ -27,20 +27,13 @@ test('checksums address', () => {
   expect(
     getAddress('0x3599689e6292b81b2d85451025146515070129bb', 30),
   ).toMatchInlineSnapshot('"0x3599689E6292B81B2D85451025146515070129Bb"')
+  expect(
+    getAddress('0xa5cc3c03994db5b0d9a5eEdD10Cabab0813678ac'),
+  ).toMatchInlineSnapshot(`"0xa5cc3c03994DB5b0d9A5eEdD10CabaB0813678AC"`)
 })
 
 describe('errors', () => {
   test('invalid address', () => {
-    expect(() =>
-      getAddress('0xa5cc3c03994db5b0d9a5eEdD10Cabab0813678ac'),
-    ).toThrowErrorMatchingInlineSnapshot(`
-      [InvalidAddressError: Address "0xa5cc3c03994db5b0d9a5eEdD10Cabab0813678ac" is invalid.
-
-      - Address must be a hex value of 20 bytes (40 hex characters).
-      - Address must match its checksum counterpart.
-
-      Version: viem@1.0.2]
-    `)
     expect(() =>
       getAddress('0xa5cc3c03994db5b0d9a5eEdD10Cabab0813678az'),
     ).toThrowErrorMatchingInlineSnapshot(`

src/utils/address/getAddress.ts

@@ -44,6 +44,7 @@ export type GetAddressErrorType =
   | ErrorType
 
 export function getAddress(address: string, chainId?: number): Address {
-  if (!isAddress(address)) throw new InvalidAddressError({ address })
+  if (!isAddress(address, { strict: false }))
+    throw new InvalidAddressError({ address })
   return checksumAddress(address, chainId)
 }

src/utils/address/isAddress.ts

@@ -20,8 +20,10 @@ export type IsAddressErrorType = ErrorType
 
 export function isAddress(
   address: string,
-  { strict = true }: IsAddressOptions = {},
+  options?: IsAddressOptions | undefined,
 ): address is Address {
+  const { strict = true } = options ?? {}
+
   if (isAddressCache.has(address)) return isAddressCache.get(address)!
 
   const result = (() => {