public function testGetFilterSelectExpression() { $col = new Column\Select('id', 'user'); $this->assertFalse($col->hasFilterSelectExpression()); $this->assertNull($col->getFilterSelectExpression()); $col->setFilterSelectExpression('CONCAT(%s)'); $this->assertEquals('CONCAT(%s)', $col->getFilterSelectExpression()); $this->assertTrue($col->hasFilterSelectExpression()); }