(NFC) Speed up more random tests, part 3 (26s=>15s)

tests/phpunit/CRM/Utils/Mail/FilteredPearMailerTest.php

@@ -6,6 +6,11 @@
  */
 class CRM_Utils_Mail_FilteredPearMailerTest extends CiviUnitTestCase {
 
+  public function setUp(): void {
+    $this->useTransaction();
+    parent::setUp();
+  }
+
   public function testFilter() {
     $mock = new class() extends \Mail {
       public $buf = [];

tests/phpunit/CRM/Utils/Mail/IncomingTest.php

@@ -32,6 +32,7 @@ class CRM_Utils_Mail_IncomingTest extends CiviUnitTestCase {
   protected $name;
 
   public function setUp(): void {
+    $this->useTransaction();
     parent::setUp();
 
     $rand = rand(0, 1000);

tests/phpunit/CRM/Utils/MailTest.php

@@ -6,6 +6,11 @@
  */
 class CRM_Utils_MailTest extends CiviUnitTestCase {
 
+  public function setUp(): void {
+    $this->useTransaction();
+    parent::setUp();
+  }
+
   /**
    * Test case for add( )
    * test with empty params.

tests/phpunit/CRM/Utils/MoneyTest.php

@@ -7,6 +7,11 @@
  */
 class CRM_Utils_MoneyTest extends CiviUnitTestCase {
 
+  public function setUp(): void {
+    $this->useTransaction();
+    parent::setUp();
+  }
+
   /**
    * @dataProvider subtractCurrenciesDataProvider
    * @param string $leftOp

tests/phpunit/CRM/Utils/NumberTest.php

@@ -6,6 +6,11 @@
  */
 class CRM_Utils_NumberTest extends CiviUnitTestCase {
 
+  public function setUp(): void {
+    $this->useTransaction();
+    parent::setUp();
+  }
+
   /**
    * @return array
    */

tests/phpunit/CRM/Utils/PDF/UtilsTest.php

@@ -6,6 +6,11 @@
  */
 class CRM_Utils_PDF_UtilsTest extends CiviUnitTestCase {
 
+  public function setUp(): void {
+    $this->useTransaction();
+    parent::setUp();
+  }
+
   /**
    * Test user-supplied settings for DOMPDF
    */