<?php
Mock::Generate('A_Db_Mysql', 'Pagination_Adapter_MockDb');
Mock::Generate('A_Db_Recordset_Mysql', 'Pagination_Adapter_MockResult');
class Pagination_Adapter_DbTest extends UnitTestCase {
public function setUp() {
$this->db = new Pagination_Adapter_MockDb();
$this->result = new Pagination_Adapter_MockResult();
$this->db->setReturnValue('query', $this->result);
$this->db->setReturnValue('limit', 'SELECT * FROM pages LIMIT 10');
$this->db->expect('limit', array('*', 10, 9)); // 9 because LIMIT offset is zero based
$this->row = array('one', 'two', 'three', 'four');
$this->query = 'SELECT * FROM pages';
$this->adapter = new A_Pagination_Adapter_Db($this->db, $this->query);
}
public function testGetNumItemsDelegatesToDatasource() {
$this->db->expectOnce('query');
$this->adapter->getNumItems();
}
public function testGetNumItemsReplacesAsteriskWithCount() {
$this->db->expectOnce('query', array('SELECT COUNT(*) AS count FROM pages'));
$this->adapter->getNumItems();
}
public function testGetNumItemsReturnsValueFromDatasource() {
$this->result->setReturnValue('isError', false);
$this->result->setReturnValue('fetchRow', array('count' => 10));
$this->assertEqual($this->adapter->getNumItems(), 10);
}
public function testGetNumItemsResultIsErrorReturnsNull() {
$this->result->setReturnValue('isError', true);
$this->result->setReturnValue('fetchRow', array('count' => 10));
$this->assertNull($this->adapter->getNumItems());
}
public function testGetNumItemsNullRowReturnsNull() {
$this->result->setReturnValue('isError', false);
$this->result->setReturnValue('fetchRow', null);
$this->assertNull($this->adapter->getNumItems());
}
public function testGetItemsDelegatesToDatasource() {
$this->db->expectOnce('limit', array($this->query, 10, 9)); // 9 because LIMIT offset is zero based
$this->adapter->getItems(10, 10);
}
public function testGetItemsReturnsValueFromDataSource() {
$this->result->setReturnValue('isError', false);
$this->result->setReturnValue('numRows', 10);
$this->result->setReturnValueAt(1, 'fetchRow', $this->row);
$this->assertNotNull($this->adapter->getItems(10, 10));
}
public function testGetItemsResultIsErrorReturnsNull() {
$this->result->setReturnValue('isError', true);
$this->result->setReturnValue('numRows', 10);
$this->result->setReturnValueAt(1, 'fetchRow', $this->row);
$this->assertNull($this->adapter->getItems(10, 10));
}
public function testGetItemsNoRowsReturnsNull() {
$this->result->setReturnValue('isError', false);
$this->result->setReturnValue('numRows', 0);
$this->result->setReturnValueAt(1, 'fetchRow', $this->row);
$this->assertNull($this->adapter->getItems(10, 10));
}
public function testSetOrderByFieldAscending() {
$this->adapter->setOrderBy('title');
$this->db->expectOnce('limit', array($this->query . ' ORDER BY title ASC', 10, 9)); // 9 because LIMIT offset is zero based
$this->adapter->getItems(10, 10);
}
public function testSetOrderByFieldDescending() {
$this->adapter->setOrderBy('title', 1);
$this->db->expectOnce('limit', array($this->query . ' ORDER BY title DESC', 10, 9)); // 9 because LIMIT offset is zero based
$this->adapter->getItems(10, 10);
}
}
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