assertRevisionable example

if ($new_base_field) {
      $this->assertNotNull($field_storage_definition);
    }
    else {
      $this->assertNull($field_storage_definition);
    }

    if ($revisionable && $translatable) {
      $this->assertRevisionableAndTranslatable();
    }
    elseif ($revisionable) {
      $this->assertRevisionable();
    }
    elseif ($translatable) {
      $this->assertTranslatable();
    }
    else {
      $this->assertNonRevisionableAndNonTranslatable();
    }

    $this->assertBundleFieldSchema($revisionable);
  }