public function testAddColumn()
{
$table = new Table('books');
$column = $this->getColumnMock('created_at');
$this->assertInstanceOf('Propel\\Generator\\Model\\Column', $table->addColumn($column));
$this->assertNull($table->getChildrenColumn());
$this->assertTrue($table->requiresTransactionInPostgres());
$this->assertTrue($table->hasColumn($column));
$this->assertTrue($table->hasColumn('CREATED_AT', true));
$this->assertSame($column, $table->getColumnByPhpName('CreatedAt'));
$this->assertCount(1, $table->getColumns());
$this->assertSame(1, $table->getNumColumns());
}