public function test_release_start_column()
{
$this->table->setStartColumn();
$this->assertEquals(1, $this->table->getLevel());
$this->assertCount(1, $this->table->getNested());
$this->assertEquals('A', $this->table->releaseStartColumn());
$this->assertEquals(0, $this->table->getLevel());
$this->assertCount(0, $this->table->getNested());
}