Sets up Drupal unit test environment.
Overrides DrupalUnitTestBase::setUp
DrupalUnitTestBase::$modules
protected function setUp() {
parent::setUp();
$this
->installSchema('node', 'node_type');
$this
->installSchema('node', 'node');
$this
->installSchema('node', 'node_field_data');
$this
->installSchema('node', 'node_field_revision');
}