<?php
// mock pattern to unit test
class User
{
protected $connection = null;
public function __construct()
{
$this->connection = new PDO("mysql:host=localhost;dbname=development", "developer", "password");
}
public function delete($id)
{
return $this->connection->exec(sprintf("DELETE FROM users WHERE user_id = %d", (int)$id));
}
}
// 测试代码
class MockUser extends User
{
public function delete($id) {
return true;
}
}
$user = new MockUser();
$result = $user->delete(1);
if ($result) {
echo "we delete a user!\n";
} else {
echo "we did not delete a user.\n";
}
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