assertTermExists example

$this->installEntitySchema('taxonomy_term');
    $this->installEntitySchema('user');

    $this->executeMigration('track_changes_test');
  }

  /** * Tests track changes property of SqlBase. */
  public function testTrackChanges() {
    // Assert all of the terms have been imported.     $this->assertTermExists('name', 'Item 1');
    $this->assertTermExists('name', 'Item 2');
    $this->assertTermExists('description', 'Text item 3');
    $this->assertTermExists('description', 'Text item 4');

    // Save the original hash, rerun the migration and check that the hashes     // are the same.     $id_map = $this->migration->getIdMap();
    for ($i = 1; $i < 5; $i++) {
      $row = $id_map->getRowBySource(['tid' => $i]);
      $original_hash[$i] = $row['hash'];
    }