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Subscribe『自己的源碼自己寫』- 從停車場計費器看測試與架構設計 - Kuma Syu
歡迎來到 https://hackmd.io/@coscup/2024 共筆
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Learn More →點擊本頁上方的 開始用 Markdown 一起寫筆記！
手機版請點選上方 按鈕展開議程列表。
你就是不寫測試才會沒時間：Kuma 的單元測試實戰 – Java篇（iThome鐵人賽系列書）
https://www.tenlong.com.tw/products/9786263332645?list_name=r-zh_tw
今日主題
- The image was uploaded to a note which you don't have access to
- The note which the image was originally uploaded to has been deleted
Learn More →我們關心的維度有哪些
你有沒有可能寫成這樣？
- The image was uploaded to a note which you don't have access to
- The note which the image was originally uploaded to has been deleted
Learn More →怎麼辦？
SOLID
TDD + Refactoring
（看 code）
物件導向-用商業邏輯包物件
把責任拆到不同物件裡面（價目表/…/假日或平日)
取資料 把資料丟給資料
在這個過程寫測試很重要，這樣你才知道有沒有沒改壞
進階題（optinal)
Ｑ：如果我要把這套系統賣給不同的停車場？
應該要做什麼事情？
Ａ：加不同的價目表
Q & A
Ｑ1
發問：想在公司實踐 TDD，測試案例要怎麼來？
Kuma：不是程式問題而是需求方問題，最近 DDD 很紅（笑）
很多問題我們想都沒有過，所以案例是「溝通來的」，我們要去請教，所以敏捷開發常說我們不是流程跟工具，我們追求是跟使用者直接溝通，取得共識。
Q2
發問：我是職場上的小螺絲釘工程師，跟客戶間會有老闆跟PM，溝通上會隔很多層，開發上都會直接對 PM，剛提到要去溝通需求。
Kuma：change a company（會眾大笑）
「導入」敏捷，「導入」TDD…「導入」聽起來很駭人，其實就是把自己的事情先做好，再去改變別人。
如果這個公司環境允許你跟需求方溝通，不允許就去找代理人溝通，如果代理人可以回答，那很好。不然就準備去刷 leetcode (ＸＤ)
推薦書：Naming Things
講者補充：為什麼數字改了測試沒壞？
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