diff --git a/.github/workflows/ci-bun.yml b/.github/workflows/ci-bun.yml
index 7216d0cd5f..14ddb03faa 100644
--- a/.github/workflows/ci-bun.yml
+++ b/.github/workflows/ci-bun.yml
@@ -59,4 +59,4 @@ jobs:
 
       - name: Run tests
         # todo: run full test suite once test createServer is implemented using Bun.listen
-        run: DEBUG=1 MYSQL_PORT=3306 bun test/integration/connection/test-select-1.js
\ No newline at end of file
+        run: FILTER=test-select MYSQL_PORT=3306 bun run test
\ No newline at end of file
diff --git a/.github/workflows/ci-linux.yml b/.github/workflows/ci-linux.yml
index b7cf117052..57c511ab4c 100644
--- a/.github/workflows/ci-linux.yml
+++ b/.github/workflows/ci-linux.yml
@@ -55,7 +55,7 @@ jobs:
             mysql-version: "mysql:5.7"
             use-compression: 0
             use-tls: 0
-          - filter: "5.1only"
+          - filter: "test-select-1"
             node-version: "16.x"
             mysql-version: "datagrip/mysql:5.1"
             use-compression: 0
diff --git a/lib/auth_41.js b/lib/auth_41.js
index bbdae41e49..15d6d032eb 100644
--- a/lib/auth_41.js
+++ b/lib/auth_41.js
@@ -41,16 +41,7 @@ function sha1(msg, msg1, msg2) {
 }
 
 function xor(a, b) {
-  if (!Buffer.isBuffer(a)) {
-    a = Buffer.from(a, 'binary');
-  }
-
-  if (!Buffer.isBuffer(b)) {
-    b = Buffer.from(b, 'binary');
-  }
-
   const result = Buffer.allocUnsafe(a.length);
-
   for (let i = 0; i < a.length; i++) {
     result[i] = a[i] ^ b[i];
   }
@@ -60,7 +51,6 @@ function xor(a, b) {
 exports.xor = xor;
 
 function token(password, scramble1, scramble2) {
-  // TODO: use buffers (not sure why strings here)
   if (!password) {
     return Buffer.alloc(0);
   }
@@ -94,14 +84,6 @@ exports.doubleSha1 = function(password) {
 };
 
 function xorRotating(a, seed) {
-  if (!Buffer.isBuffer(a)) {
-    a = Buffer.from(a, 'binary');
-  }
-
-  if (!Buffer.isBuffer(seed)) {
-    seed = Buffer.from(seed, 'binary');
-  }
-
   const result = Buffer.allocUnsafe(a.length);
   const seedLen = seed.length;
 
diff --git a/lib/auth_plugins/caching_sha2_password.js b/lib/auth_plugins/caching_sha2_password.js
index 50e8589d58..3ed01e3c7f 100644
--- a/lib/auth_plugins/caching_sha2_password.js
+++ b/lib/auth_plugins/caching_sha2_password.js
@@ -17,24 +17,24 @@ const STATE_FINAL = -1;
 
 function sha256(msg) {
   const hash = crypto.createHash('sha256');
-  hash.update(msg, 'binary');
-  return hash.digest('binary');
+  hash.update(msg);
+  return hash.digest();
 }
 
 function calculateToken(password, scramble) {
   if (!password) {
     return Buffer.alloc(0);
   }
-  const stage1 = sha256(Buffer.from(password, 'utf8').toString('binary'));
+  const stage1 = sha256(Buffer.from(password));
   const stage2 = sha256(stage1);
-  const stage3 = sha256(stage2 + scramble.toString('binary'));
+  const stage3 = sha256(Buffer.concat([stage2, scramble]));
   return xor(stage1, stage3);
 }
 
 function encrypt(password, scramble, key) {
   const stage1 = xorRotating(
-    Buffer.from(`${password}\0`, 'utf8').toString('binary'),
-    scramble.toString('binary')
+    Buffer.from(`${password}\0`, 'utf8'),
+    scramble
   );
   return crypto.publicEncrypt(key, stage1);
 }
@@ -86,6 +86,7 @@ module.exports = (pluginOptions = {}) => ({ connection }) => {
           `Invalid AuthMoreData packet received by ${PLUGIN_NAME} plugin in STATE_TOKEN_SENT state.`
         );
       case STATE_WAIT_SERVER_KEY:
+        console.log('Server pub key:', data);
         if (pluginOptions.onServerPublicKey) {
           pluginOptions.onServerPublicKey(data);
         }
diff --git a/lib/auth_plugins/sha256_password.js b/lib/auth_plugins/sha256_password.js
index f787172d8c..9c104a0715 100644
--- a/lib/auth_plugins/sha256_password.js
+++ b/lib/auth_plugins/sha256_password.js
@@ -12,8 +12,8 @@ const STATE_FINAL = -1;
 
 function encrypt(password, scramble, key) {
   const stage1 = xorRotating(
-    Buffer.from(`${password}\0`, 'utf8').toString('binary'),
-    scramble.toString('binary')
+    Buffer.from(`${password}\0`, 'utf8'),
+    scramble
   );
   return crypto.publicEncrypt(key, stage1);
 }
diff --git a/test/integration/connection/test-select-1.js b/test/integration/connection/test-select-1.js
index c778970167..b7066bda6c 100644
--- a/test/integration/connection/test-select-1.js
+++ b/test/integration/connection/test-select-1.js
@@ -1,41 +1,13 @@
 'use strict';
 
-console.log('Hello from bun test', typeof Bun);
-
+const assert = require('assert');
 const common = require('../../common');
-
-console.log('after import');
-
 const connection = common.createConnection();
-connection.on('connect', function(hello) {
-  console.log('connect', hello.serverVersion, hello.protocolVersion);
-})
-console.log('after create connection');
-//const assert = require('assert');
-connection.query('SELECT 1', (err, _rows, _fields) => {
-  console.log('query callback', err, _rows, _fields);
-  connection.end();
-  console.log('after end connection');
-});
-
-
-/*
 
-let rows = undefined;
-let fields = undefined;
-connection.query('SELECT 1', (err, _rows, _fields) => {
-  if (err) {
-    throw err;
-  }
-
-  rows = _rows;
-  fields = _fields;
-  connection.end();
-});
-
-process.on('exit', () => {
+connection.query('SELECT 1', (err, rows, fields) => {
+  console.log('query callback', err, rows, fields);
+  assert.ifError(err);
   assert.deepEqual(rows, [{ 1: 1 }]);
   assert.equal(fields[0].name, '1');
-});
-
-*/
\ No newline at end of file
+  connection.end();
+});
\ No newline at end of file