訂判斷及所需輸入
本例第五分鐘停、二十五恢復,每十分鐘一輪,欠了十及二十。補跑規則兩輪都在二十五執行,再到三十;只跑未來則明記十、二十已跳,下一輪仍三十。單說恢復未選定規則。
| 情況 | 輸入 JSON |
|---|---|
| 原例測試 | {"mode":"replay","triggers":[10,20],"pause":5,"resume":25,"interval":10} |
跑所附比較
可執行事件清單分開保原定及真正執行時間,只展開題內本地觸發;重跑此清單不會做外部動作。
| 路徑 | 輸出 JSON |
|---|---|
| 錯誤路徑 | {"events":[{"scheduled":30,"actual":30}],"skipped":[10,20]} |
| 所需路徑 | {"events":[{"scheduled":10,"actual":25},{"scheduled":20,"actual":25},{"scheduled":30,"actual":30}],"skipped":[]} |
import assert from 'node:assert/strict';
const run=function run(i,corrected=true){
if(!['replay','future-only'].includes(i.mode))return {held:true};
const missed=i.triggers.filter(t=>t>i.pause&&t<=i.resume),next=(Math.floor(i.resume/i.interval)+1)*i.interval;
const replay=corrected&&i.mode==='replay';return {events:[...(replay?missed.map(scheduled=>({scheduled,actual:i.resume})):[]),{scheduled:next,actual:next}],skipped:replay?[]:missed};
};
const cases=[{"input":{"mode":"replay","triggers":[10,20],"pause":5,"resume":25,"interval":10},"corrected":false,"expected":{"events":[{"scheduled":30,"actual":30}],"skipped":[10,20]}},{"input":{"mode":"replay","triggers":[10,20],"pause":5,"resume":25,"interval":10},"corrected":true,"expected":{"events":[{"scheduled":10,"actual":25},{"scheduled":20,"actual":25},{"scheduled":30,"actual":30}],"skipped":[]}},{"input":{"mode":"future-only","triggers":[10,20],"pause":5,"resume":25,"interval":10},"corrected":true,"expected":{"events":[{"scheduled":30,"actual":30}],"skipped":[10,20]}},{"input":{"mode":"future-only","triggers":[10,20,30],"pause":5,"resume":30,"interval":10},"corrected":true,"expected":{"events":[{"scheduled":40,"actual":40}],"skipped":[10,20,30]}},{"input":{"mode":null,"triggers":[],"pause":5,"resume":25,"interval":10},"corrected":true,"expected":{"held":true}}];
for(const test of cases){const actual=await run(test.input,test.corrected);assert.deepEqual(actual,test.expected);console.log(actual);}
按邊界依據作判斷
只跑未來在此明訂須遲於恢復時刻;剛好三十恢復,下次四十。補跑模式未知便停。
- 找題內欠跑觸發
- 套明訂恢復起點
- 原定及執行時間一起留
考慮外部結果前,先明訂補跑規則。
| 條件 | 輸入 JSON | 預期輸出 JSON |
|---|---|---|
| 明訂只跑之後輪次 | {"mode":"future-only","triggers":[10,20],"pause":5,"resume":25,"interval":10} | {"events":[{"scheduled":30,"actual":30}],"skipped":[10,20]} |
| 恢復時刻剛好在分界 | {"mode":"future-only","triggers":[10,20,30],"pause":5,"resume":30,"interval":10} | {"events":[{"scheduled":40,"actual":40}],"skipped":[10,20,30]} |
| 恢復規則未知 | {"mode":null,"triggers":[],"pause":5,"resume":25,"interval":10} | {"held":true} |
原例補跑規則怎樣處理兩個欠跑觸發?
查看參考答案
原定仍十、二十,真正都在二十五跑;不靜靜丟掉,也不改成原定二十五。