Add unit test case

Author: kamil-tekiela

ext/mysqli/tests/gh15432.phpt

@@ -1,5 +1,5 @@
 --TEST--
-Bug GH-15432 (Heap corruption when querying a vector)
+Bug GH-15432 (Heap corruption when querying a vector/PHP crashes when processing a MySQL DB query with a new Vector format introduced in MySQL 9.0)
 --EXTENSIONS--
 mysqli
 --SKIPIF--
@@ -16,9 +16,49 @@ if ($link->server_version < 90000 || $link->server_version >= 10_00_00) {
 --FILE--
 <?php
 require 'connect.inc';
+
+mysqli_report(MYSQLI_REPORT_ERROR | MYSQLI_REPORT_STRICT);
+
 $link = my_mysqli_connect($host, $user, $passwd, $db, $port, $socket);
-var_dump($link->query('SELECT STRING_TO_VECTOR("[1.05, -17.8, 32]")'));
+
+$expected = '00000040000040400000a040';
+
+mysqli_query($link, "DROP TABLE IF EXISTS test");
+mysqli_query($link, "CREATE TABLE test(vectorfield VECTOR)");
+mysqli_query($link, 'INSERT INTO test VALUES (TO_VECTOR("[2, 3, 5]"))');
+
+// Textual protocol
+$result = mysqli_query($link, "SELECT vectorfield FROM test")->fetch_column();
+$value = bin2hex($result);
+if($value !== $expected) {
+    printf("[001] Expecting %s/%s, got %s/%s\n",
+        gettype($expected), $expected,
+        gettype($value), $value);
+}
+
+// Binary protocol
+$result = $link->execute_query("SELECT vectorfield FROM test")->fetch_column();
+$value = bin2hex($result);
+if($value !== $expected) {
+    printf("[002] Expecting %s/%s, got %s/%s\n",
+        gettype($expected), $expected,
+        gettype($value), $value);
+}
+
+// Testing inverse to make sure the value hasn't been changed
+$expected = '[2.00000e+00,3.00000e+00,5.00000e+00]';
+$result = $link->execute_query("SELECT VECTOR_TO_STRING(0x". $value .")")->fetch_column();
+if($result !== $expected) {
+    printf("[002] Expecting %s/%s, got %s/%s\n",
+        gettype($expected), $expected,
+        gettype($result), $result);
+}
+
+echo "OK";
+?>
+--CLEAN--
+<?php
+require_once 'clean_table.inc';
 ?>
---EXPECTF--
-Warning: mysqli::query(): Unknown type 242 sent by the server. Please send a report to the developers in %s on line %d
-bool(false)
+--EXPECT--
+OK