mytdd

SweeperTest.php

<?php
/*
こんなイメージ
(例) 1,1 と 1,2 に爆弾がある

     x:1    x:2   x:3   x:4
   +-----+-----+-----+-----+
y:1|  x  |     |     |     |
   +-----+-----+-----+-----+
y:2|  x  |     |     |     |
   +-----+-----+-----+-----+
y:3|     |     |     |     |
   +-----+-----+-----+-----+
y:4|     |     |     |     |
   +-----+-----+-----+-----+
 */

/**
 * SweeperTest
 *
 * @package    TDDWS
 * @author     Masao Maeda <Masao_Maeda@voyagegroup.com>
 * @version    $id$
 */
class SweeperTest extends PHPUnit_Framework_TestCase
{
    /**
     * @test
     */
    public function 爆弾が1つだけのマップで爆弾の数を数える()
    {
        $bombs = array(
            array('x' => 1, 'y' => 1),
            );
        $Map = new Map($bombs);
        $Sweeper = new Sweeper($Map);
        $this->assertEquals(1, $Sweeper->countNextBombs(2,2));
        $this->assertEquals(0, $Sweeper->countNextBombs(3,3));
    }
    /**
     * @test
     */
    public function 爆弾が複数のマップで爆弾の数を数える()
    {
        $bombs = array(
            array('x' => 1, 'y' => 1),
            array('x' => 1, 'y' => 2),
            );
        $Map = new Map($bombs);
        $Sweeper = new Sweeper($Map);
        $this->assertEquals(2, $Sweeper->countNextBombs(2,2));
        $this->assertEquals(1, $Sweeper->countNextBombs(2,3));
    }
}

// Map
class Map
{
    public $bombs = array();
    public function __construct(array $bombs)
    {
        $this->bombs = $bombs;
    }
    public function getNextBombs($x, $y)
    {
        $nextBombs = array_filter($this->bombs, function($items) use($x, $y) {
                return (abs($items['x'] - $x) <= 1 && abs($items['y'] - $y) <= 1);
            });
        return $nextBombs;
    }
}


// Sweeper
class Sweeper
{
    public $map;
    public function __construct(Map $map)
    {
        $this->map = $map;
    }
    public function countNextBombs($x, $y)
    {
        return count($this->map->getNextBombs($x, $y));
    }
}