Issue #3243405: Add a kernel test of UpdateVersionValidator

tests/src/Kernel/ReadinessValidation/UpdateVersionValidatorTest.php

@@ -21,14 +21,14 @@ class UpdateVersionValidatorTest extends AutomaticUpdatesKernelTestBase {
   ];
 
   /**
-   * Tests that no error is raised if there are no major or minor updates.
+   * Tests an update version that is same major & minor version as the current.
    */
   public function testNoMajorOrMinorUpdates(): void {
     $this->assertCheckerResultsFromManager([], TRUE);
   }
 
   /**
-   * Tests that an error is raised if there are major updates.
+   * Tests an update version that is a different major version than the current.
    */
   public function testMajorUpdates(): void {
     $this->setCoreVersion('8.9.1');
@@ -38,7 +38,7 @@ class UpdateVersionValidatorTest extends AutomaticUpdatesKernelTestBase {
   }
 
   /**
-   * Tests that an error is raised if there are minor updates.
+   * Tests an update version that is a different minor version than the current.
    */
   public function testMinorUpdates(): void {
     $this->setCoreVersion('9.7.1');