only in patch2:
unchanged:
--- a/modules/ubercart/tests/src/Kernel/Migrate/uc6/OrderTest.php
+++ b/modules/ubercart/tests/src/Kernel/Migrate/uc6/OrderTest.php
@@ -69,7 +69,7 @@ class OrderTest extends Ubercart6TestBase {
           'label' => 'Service charge',
           'amount' => new Price('1.99', 'NZD'),
           'percentage' => NULL,
-          'sourceID' => NULL,
+          'source_id' => 'custom',
           'included' => FALSE,
           'locked' => TRUE,
         ]),
@@ -78,7 +78,7 @@ class OrderTest extends Ubercart6TestBase {
           'label' => 'Handling',
           'amount' => new Price('1.40', 'NZD'),
           'percentage' => NULL,
-          'sourceID' => NULL,
+          'source_id' => 'custom',
           'included' => FALSE,
           'locked' => TRUE,
         ]),
@@ -117,7 +117,7 @@ class OrderTest extends Ubercart6TestBase {
           'label' => 'Handling',
           'amount' => new Price('60.00', 'NZD'),
           'percentage' => NULL,
-          'sourceID' => NULL,
+          'source_id' => 'custom',
           'included' => FALSE,
           'locked' => TRUE,
         ]),
@@ -154,7 +154,7 @@ class OrderTest extends Ubercart6TestBase {
           'label' => 'Handling',
           'amount' => new Price('0.80000', 'NZD'),
           'percentage' => NULL,
-          'sourceID' => NULL,
+          'source_id' => 'custom',
           'included' => FALSE,
           'locked' => TRUE,
         ]),
@@ -194,7 +194,7 @@ class OrderTest extends Ubercart6TestBase {
           'label' => 'Handling',
           'amount' => new Price('240000000.000000', 'NZD'),
           'percentage' => NULL,
-          'sourceID' => NULL,
+          'source_id' => 'custom',
           'included' => FALSE,
           'locked' => TRUE,
         ]),