From cfc1c10de5f6f929b05cd5a097423a58cd49cdd9 Mon Sep 17 00:00:00 2001
From: Theophile Sandoz <theophile.sandoz@gmail.com>
Date: Wed, 13 Mar 2024 17:09:28 +0100
Subject: [PATCH] =?UTF-8?q?=F0=9F=A7=AA=20Add=20a=20vote=20commitment=20te?=
 =?UTF-8?q?st=20(#4804)?=
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* Add a vote commitment test

* Test that the payload is as expected

* Explicitly test `blake2AsHex`
---
 .../council/model/calculateCommitment.test.ts | 41 +++++++++++++++++++
 1 file changed, 41 insertions(+)
 create mode 100644 packages/ui/test/council/model/calculateCommitment.test.ts

diff --git a/packages/ui/test/council/model/calculateCommitment.test.ts b/packages/ui/test/council/model/calculateCommitment.test.ts
new file mode 100644
index 0000000000..9affcbd4ae
--- /dev/null
+++ b/packages/ui/test/council/model/calculateCommitment.test.ts
@@ -0,0 +1,41 @@
+import { blake2AsHex } from '@polkadot/util-crypto'
+
+import { calculateCommitment } from '@/council/model/calculateCommitment'
+
+import { accountsMap } from '../../../dev/node-mocks/data/addresses'
+
+describe('Model: calculateCommitment', () => {
+  const aliceExpectedCommitment = '0x3db26e2bd023ccf2d1167fd42d48cc76b1c1e5c1de9003f61e63ec6a337b91a2'
+  const bobExpectedCommitment = '0xf94e151db1bbcd27018ee12400b05b8d5ad495dc8d481421fdc366639d42be75'
+
+  const TEST_SALT = '0x16dfff7ba21922067a0c114de774424abcd5d60fc58658a35341c9181b09e94a'
+  const aliceCommitment = calculateCommitment(accountsMap.alice, '0', TEST_SALT, 1)
+  const bobCommitment = calculateCommitment(accountsMap.bob, '0', TEST_SALT, 1)
+
+  // This is the main test the 2 others are just for debugging in case this is failing
+  it('calculateCommitment', () => {
+    expect(aliceCommitment).toBe(aliceExpectedCommitment)
+    expect(bobCommitment).toBe(bobExpectedCommitment)
+  })
+
+  // This is the payload of: ALICE_ADDRESS, '0', TEST_SALT, 1
+  const aliceVotePayload = Buffer.from(
+    new Uint8Array([
+      0xd4, 0x35, 0x93, 0xc7, 0x15, 0xfd, 0xd3, 0x1c, 0x61, 0x14, 0x1a, 0xbd, 0x4, 0xa9, 0x9f, 0xd6, 0x82, 0x2c, 0x85,
+      0x58, 0x85, 0x4c, 0xcd, 0xe3, 0x9a, 0x56, 0x84, 0xe7, 0xa5, 0x6d, 0xa2, 0x7d, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
+      0x0, 0x80, 0x16, 0xdf, 0xff, 0x7b, 0xa2, 0x19, 0x22, 0x6, 0x7a, 0xc, 0x11, 0x4d, 0xe7, 0x74, 0x42, 0x4a, 0xbc,
+      0xd5, 0xd6, 0xf, 0xc5, 0x86, 0x58, 0xa3, 0x53, 0x41, 0xc9, 0x18, 0x1b, 0x9, 0xe9, 0x4a, 0x1, 0x0, 0x0, 0x0, 0x0,
+      0x0, 0x0, 0x0,
+    ])
+  )
+
+  // If this fails => something is wrong with the payload generation
+  it('payload', () => {
+    expect(blake2AsHex(aliceVotePayload)).toBe(aliceCommitment)
+  })
+
+  // If this fails => something is wrong with the blake2AsHex function
+  it('blake2AsHex', () => {
+    expect(blake2AsHex(aliceVotePayload)).toBe(aliceExpectedCommitment)
+  })
+})