Issue #2707689: NodeForm::actions() checks for delete access on new entities

core/modules/migrate/tests/src/Functional/process/DownloadFunctionalTest.php

@@ -76,8 +76,11 @@ public function testExceptionThrow() {
     $this->assertCount(1, $messages);
     $message = reset($messages);
 
+    // Assert critical parts of the error message, but not the exact message,
+    // since it depends on Guzzle's internal implementation of PSR-7.
     $id = $migration->getPluginId();
-    $this->assertEquals("$id:uri:download: Client error: `GET $invalid_url` resulted in a `404 Not Found` response ($invalid_url)", $message->message);
+    $this->assertStringContainsString("$id:uri:download:", $message->message);
+    $this->assertStringContainsString($invalid_url, $message->message);
     $this->assertEquals(MigrationInterface::MESSAGE_ERROR, $message->level);
 
     // Check that the second row was migrated successfully.