From 67a03702c021f2a1dd9be3a549ada97cb90a2b7d Mon Sep 17 00:00:00 2001
From: Chris Duncan <chris@zoso.dev>
Date: Fri, 8 Aug 2025 12:41:37 -0700
Subject: [PATCH] Fix pow test.

---
 src/types.d.ts              | 8 ++++----
 test/test.calculate-pow.mjs | 8 ++------
 2 files changed, 6 insertions(+), 10 deletions(-)

diff --git a/src/types.d.ts b/src/types.d.ts
index 33b38cd..1d74a67 100644
--- a/src/types.d.ts
+++ b/src/types.d.ts
@@ -236,7 +236,7 @@ export declare class Block {
 	subtype?: 'send' | 'receive' | 'change'
 	account: Account
 	balance: bigint
-	previous: string
+	previous: Uint8Array<ArrayBuffer>
 	representative?: Account
 	link?: Uint8Array<ArrayBuffer>
 	signature?: string
@@ -250,7 +250,7 @@ export declare class Block {
 	* the other parameters instead of passing them into the constructor.
 	*
 	* @param {(string|Account)} account - Target of the transaction; can include `balance`, `frontier`, `representative`
-	* @param {(bigint|number|string)} [balance] - Current balance of the target account
+	* @param {(bigint|number|string)} [balance] - Current balance of the target account in raw
 	* @param {string} [previous] - Current frontier block hash of the target account
 	* @param {(string|Account)} [representative] - Current representative of the target account
 	*/
@@ -299,7 +299,7 @@ export declare class Block {
 	*
 	* @param {(string|Block)} sendBlock - Corresponding send block or its hash
 	* @param {(bigint|number|string)} amount - Amount to be received from sender
-	* @param {string} [unit] - Unit of measure for amount. Default: "NANO" (10³⁰ RAW)
+	* @param {string} [unit] - Unit of measure for amount (e.g. 'NANO' = 10³⁰ RAW). Default: "RAW"
 	* @returns {Block} This block with balance, link, and subtype configured
 	*/
 	receive (sendBlock: string | Block, amount: bigint | number | string, unit?: string): Block
@@ -308,7 +308,7 @@ export declare class Block {
 	*
 	* @param {(string|Account)} account - Account to target or its address or public key
 	* @param {(bigint|number|string)} amount - Amount to send to recipient
-	* @param {string} [unit] - Unit of measure for amount. Default: "NANO" (10³⁰ RAW)
+	* @param {string} [unit] - Unit of measure for amount (e.g. 'NANO' = 10³⁰ RAW). Default: "RAW"
 	* @returns {Block} This block with balance, link, and subtype configured
 	*/
 	send (account: string | Account, amount: bigint | number | string, unit?: string): Block
diff --git a/test/test.calculate-pow.mjs b/test/test.calculate-pow.mjs
index c67cd8d..b4ed09b 100644
--- a/test/test.calculate-pow.mjs
+++ b/test/test.calculate-pow.mjs
@@ -28,7 +28,7 @@ await Promise.all([
 				.send(NANO_TEST_VECTORS.SEND_BLOCK.link, '0')
 				.pow()
 
-			assert.equal(block.previous.length, 64)
+			assert.equal(block.previous.byteLength, 32)
 			assert.equal(block.work?.length, 16)
 
 			const work = block.work
@@ -36,12 +36,8 @@ await Promise.all([
 				?.map(hex => parseInt(hex, 16))
 				.reverse()
 			if (work == null) throw new Error('Work invalid')
-			const previous = block.previous
-				?.match(/.{2}/g)
-				?.map(hex => parseInt(hex, 16))
-			if (previous == null) throw new Error('Previous block hash invalid')
 
-			const bytes = new Uint8Array([...work, ...previous])
+			const bytes = new Uint8Array([...work, ...block.previous])
 			assert.equal(bytes.byteLength, 40)
 
 			const hash = new Blake2b(8)
-- 
2.47.3