diff --git a/tests/cases/Db/BaseStatement.php b/tests/cases/Db/BaseStatement.php
index 6d19862..94922e6 100644
--- a/tests/cases/Db/BaseStatement.php
+++ b/tests/cases/Db/BaseStatement.php
@@ -90,25 +90,23 @@ abstract class BaseStatement extends \JKingWeb\Arsse\Test\AbstractTest {
 
     public function testBindMultipleValues() {
         $exp = [
-            'one' => 1,
-            'two' => 2,
+            'one' => "A",
+            'two' => "B",
         ];
-        $exp = static::$stringOutput ? $this->stringify($exp) : $exp;
-        $s = new $this->statementClass(...$this->makeStatement("SELECT ? as one, ? as two", ["int", "int"]));
-        $val = $s->runArray([1,2])->getRow();
+        $s = new $this->statementClass(...$this->makeStatement("SELECT ? as one, ? as two", ["str", "str"]));
+        $val = $s->runArray(["A", "B"])->getRow();
         $this->assertSame($exp, $val);
     }
 
     public function testBindRecursively() {
         $exp = [
-            'one'   => 1,
-            'two'   => 2,
-            'three' => 3,
-            'four'  => 4,
+            'one'   => "A",
+            'two'   => "B",
+            'three' => "C",
+            'four'  => "D",
         ];
-        $exp = static::$stringOutput ? $this->stringify($exp) : $exp;
-        $s = new $this->statementClass(...$this->makeStatement("SELECT ? as one, ? as two, ? as three, ? as four", ["int", ["int", "int"], "int"]));
-        $val = $s->runArray([1, [2, 3], 4])->getRow();
+        $s = new $this->statementClass(...$this->makeStatement("SELECT ? as one, ? as two, ? as three, ? as four", ["str", ["str", "str"], "str"]));
+        $val = $s->runArray(["A", ["B", "C"], "D"])->getRow();
         $this->assertSame($exp, $val);
     }
 
diff --git a/tests/cases/Db/MySQL/TestDriver.php b/tests/cases/Db/MySQL/TestDriver.php
index 15b21c1..9b08395 100644
--- a/tests/cases/Db/MySQL/TestDriver.php
+++ b/tests/cases/Db/MySQL/TestDriver.php
@@ -18,18 +18,14 @@ class TestDriver extends \JKingWeb\Arsse\TestCase\Db\BaseDriver {
     protected static $insertDefaultValues = "INSERT INTO arsse_test(id) values(default)";
 
     protected function exec($q): bool {
-        if (is_array($q)) {
-            $q = implode("; ", $q);
+        if (!is_array($q)) {
+            $q = [$q];
         }
-        static::$interface->multi_query($q);
-        $e = null;
-        do {
-            if (!$e && static::$interface->sqlstate !== "00000") {
-                $e = new \Exception(static::$interface->error);
+        foreach ($q as $query) {
+            static::$interface->query($query);
+            if (static::$interface->sqlstate !== "00000") {
+                throw new \Exception(static::$interface->error);
             }
-        } while (static::$interface->more_results() && static::$interface->next_result());
-        if ($e) {
-            throw $e;
         }
         return true;
     }
diff --git a/tests/cases/Db/MySQL/TestStatement.php b/tests/cases/Db/MySQL/TestStatement.php
index 868a87f..ccda364 100644
--- a/tests/cases/Db/MySQL/TestStatement.php
+++ b/tests/cases/Db/MySQL/TestStatement.php
@@ -25,6 +25,8 @@ class TestStatement extends \JKingWeb\Arsse\TestCase\Db\BaseStatement {
                     return "'".\IntlChar::chr((int) $match[1])."'";
                 }
                 return $value;
+            case "datetime":
+                return "cast($value as datetime(0))";
             default:
                 return $value;
         }