public function testConcatWithDelimiter() {
$this->plugin->setDelimiter('_');
$value = $this->plugin->transform(['foo', 'bar'], $this->migrateExecutable, $this->row, 'destinationproperty');
public function testConcatWithDelimiter() {
$this->plugin->setDelimiter('_');
$value = $this->plugin->transform(['foo', 'bar'], $this->migrateExecutable, $this->row, 'destinationproperty');