在上一篇我們已將程式重構為

<?php
// src/PttCrawler.php

namespace Recca0120\Ithome30;

use Psr\Http\Client\ClientInterface;
use Recca0120\Ithome30\Crawlers\Home;

class PttCrawler
{
    public function __construct(private ClientInterface $httpClient)
    {
    }

    public function all()
    {
        $crawler = new Home($this->httpClient);

        return $crawler->all();
    }
}

接下來要開始分析每個看版的列表，這時候可以先打開原本的測試

<?php

namespace Recca0120\Ithome30\Tests;

use Mockery;
use GuzzleHttp\Client;
use GuzzleHttp\Psr7\Request;
use PHPUnit\Framework\TestCase;
use Recca0120\Ithome30\PttCrawler;
use Psr\Http\Client\ClientInterface;

class PttCrawlerTest extends TestCase
{
    public function test_fetch_board_page()
    {
        \VCR\VCR::turnOn();
        \VCR\VCR::insertCassette('ptt_home.yaml');

        /** @var Mockery\Mock|ClientInterface $httpClient */
        $httpClient = Mockery::spy(new Client());

        $crawler = new PttCrawler($httpClient);
        $records = $crawler->all();

        self::assertEquals([
            'name' => 'Gossiping',
            "nuser" => '8803',
            'class' => '綜合',
            'title' => '[八卦] 亞運李智凱、許皓鋐奪金！',
            'url' => 'https://www.ptt.cc/bbs/Gossiping/index.html'
        ], $records[0]);

        $httpClient->shouldHaveReceived('sendRequest')->once()->with(Mockery::on(function (Request $request) {
            return (((string)$request->getUri()) === 'https://www.ptt.cc/bbs/hotboards.html');
        }));

        \VCR\VCR::eject();
        \VCR\VCR::turnOff();
    }
}

可以先思考回傳的結果的格式是什麼，怎麼比較容易存入資料庫。所以目前想到的方案有

1. 使用 children 來存放 Article，結構如下

self::assertEquals([
    'name' => 'Gossiping',
    "nuser" => '8803',
    'class' => '綜合',
    'title' => '[八卦] 亞運李智凱、許皓鋐奪金！',
    'url' => 'https://www.ptt.cc/bbs/Gossiping/index.html'
    'children' => [
        [
            'nrec' => '4',
            'type' => '協尋',
            'title' => '9/30 10:15員林回春中醫診所前車禍行車',
            'author' => 'tyujm',
            'date' => '10/3',
            'url' => 'https://www.ptt.cc/bbs/Gossiping/M.1696296400.A.A9B.html',
        ]
    ],
], $records[0]);

2. 將資料舖平，結構如下

self::assertEquals([
    'board_name' => 'Gossiping',
    'board_class' => '綜合',
    'nrec' => '4',
    'type' => '協尋',
    'title' => '9/30 10:15員林回春中醫診所前車禍行車',
    'author' => 'tyujm',
    'date' => '10/3',
    'url' => 'https://www.ptt.cc/bbs/Gossiping/M.1696296400.A.A9B.html',
], $records[0]);

分析了這兩個方案之後，我打算採取第 2 個方案，原因是資料取出後只需要跑一次迴圈就可以，比較方便使用

這是目前預期的結果，最後寫出來的程式如果不容易使用，我們還是保有測試隨時可以進行調整

確認好方案之後我們接下來就是面臨的議題就是『測試要怎麼寫才對』的情境了，明天我們再來探討這個問題