diff --git a/core/modules/views/tests/modules/views_test_data/src/Plugin/views/argument_validator/ArgumentValidatorTest.php b/core/modules/views/tests/modules/views_test_data/src/Plugin/views/argument_validator/ArgumentValidatorTest.php
index 8bee188..fac12b1 100644
--- a/core/modules/views/tests/modules/views_test_data/src/Plugin/views/argument_validator/ArgumentValidatorTest.php
+++ b/core/modules/views/tests/modules/views_test_data/src/Plugin/views/argument_validator/ArgumentValidatorTest.php
@@ -37,8 +37,9 @@ protected function defineOptions() {
    * {@inheritdoc}
    */
   public function validateArgument($arg) {
-    if ($arg === 'this value should be replaced') {
-      $this->argument->argument = 'this value is replaced!';
+    // Convert dww's UID to that of Satan, for he broke Postgres.
+    if ($arg === '46549') {
+      $this->argument->argument = '666';
       return TRUE;
     }
     return $arg == $this->options['test_value'];
diff --git a/core/modules/views/tests/src/Kernel/ViewExecutableTest.php b/core/modules/views/tests/src/Kernel/ViewExecutableTest.php
index d7126b9..231d45c 100644
--- a/core/modules/views/tests/src/Kernel/ViewExecutableTest.php
+++ b/core/modules/views/tests/src/Kernel/ViewExecutableTest.php
@@ -531,11 +531,22 @@ public function testSerialization() {
   public function testArgumentValidatorValueOverride() {
     $view = Views::getView('test_argument_dependency');
     $view->setDisplay('page_1');
-    $view->setArguments(['1', 'this value should be replaced']);
+
+    // Non-transform case.
+    $view->setArguments(['1', '65776']); // xjm in.
+    $view->execute();
+    $expected = [
+      '{{ arguments.uid }}' => '65776', // xjm out.
+      '{{ raw_arguments.uid }}' => '65776',
+    ];
+    $this->assertEquals($expected, $view->build_info['substitutions']);
+
+    // Transform case.
+    $view->setArguments(['1', '46549']); // dww in.
     $view->execute();
     $expected = [
-      '{{ arguments.uid }}' => 'this value is replaced!',
-      '{{ raw_arguments.uid }}' => 'this value is replaced!',
+      '{{ arguments.uid }}' => '666', // Satan out.
+      '{{ raw_arguments.uid }}' => '666',
     ];
     $this->assertEquals($expected, $view->build_info['substitutions']);
   }