Factor out data provider.

Closes #3469709

core/modules/update/tests/src/Functional/UpdateContribTest.php

@@ -585,6 +585,15 @@ public function testCoreCompatibilityMessage(): void {
     $this->assertCoreCompatibilityMessage('8.x-2.2', '8.1.1', 'Also available:', FALSE);
   }
 
+  /**
+   * Tests update status of security releases.
+   */
+  public function testSecurityUpdateAvailability(): void {
+    foreach (static::securityUpdateAvailabilityProvider() as $case) {
+      $this->doTestSecurityUpdateAvailability($case['module_version'], $case['expected_security_releases'], $case['expected_update_message_type'], $case['fixture']);
+    }
+  }
+
   /**
    * Tests update status of security releases.
    *
@@ -596,10 +605,8 @@ public function testCoreCompatibilityMessage(): void {
    *   The type of update message expected.
    * @param string $fixture
    *   The fixture file to use.
-   *
-   * @dataProvider securityUpdateAvailabilityProvider
    */
-  public function testSecurityUpdateAvailability($module_version, array $expected_security_releases, $expected_update_message_type, $fixture): void {
+  protected function doTestSecurityUpdateAvailability($module_version, array $expected_security_releases, $expected_update_message_type, $fixture): void {
     $this->mockInstalledExtensionsInfo([
       'aaa_update_test' => [
         'project' => 'aaa_update_test',