public function testGettersAndSetters()
{
$clause = new SelectClause();
$field = new FieldSelectExpression();
$now = new NowSelectExpression();
$this->assertFalse($clause->hasExpressions());
$clause->addExpression($field);
$this->assertTrue($clause->hasExpressions());
$this->assertSame([$field], $clause->getExpressions());
$clause->clearExpressions();
$clause->setExpressions([$field, $now]);
$this->assertTrue($clause->hasExpressions());
$clause->clearExpressions();
$this->assertFalse($clause->hasExpressions());
$this->setExpectedException("InvalidArgumentException");
$clause->setExpressions([$field, $now, 'abc']);
}
public function assembleSelectClause(SelectClause $clause)
{
$return = $clause->getAction() . ($clause->isDistinct() ? ' DISTINCT' : '');
if (!$clause->hasExpressions()) {
return $return . ' *';
}
return $return . ' ' . implode(', ', $this->assembleSegments($clause->getExpressions()));
}