Ted Bowman
--- a/tests/src/Kernel/ReadinessValidation/WritableFileSystemValidatorTest.php 0 → 100644
+++ b/tests/src/Kernel/ReadinessValidation/WritableFileSystemValidatorTest.php 0 → 100644
+  /**
+   * Data provider for ::testWritable().
+   *
+   * @return array[]
+   *   Sets of arguments to pass to the test method.
+   */
+  public function providerWritable(): array {
+    $root_error = t('The Drupal directory "vfs://htdoc/root" is not writable.');
+    $vendor_error = t('The vendor directory "vfs://htdoc/vendor" is not writable.');
+    $summary = t('The file system is not writable.');
+
+    return [
+      'root and vendor are writable' => [
+        [
+          'root' => TRUE,
+          'vendor' => TRUE,