test(pulse): prove the day-mean method across readers, the dry run's single write and the bounded heap

src/lib/jobs/pulse-day-mean.ts

@@ -175,7 +175,10 @@ function windows(
   const start = Math.floor(first.getTime() / DAY_MS) * DAY_MS;
   const end = (Math.floor(last.getTime() / DAY_MS) + 1) * DAY_MS;
   for (let t = start; t < end; t += days * DAY_MS) {
-    out.push({ from: new Date(t), to: new Date(Math.min(end, t + days * DAY_MS)) });
+    out.push({
+      from: new Date(t),
+      to: new Date(Math.min(end, t + days * DAY_MS)),
+    });
   }
   return out;
 }

src/lib/measurements/__tests__/day-mean.test.ts

@@ -175,8 +175,9 @@ describe("pulse day-mean method", () => {
   });
 
   it("weighs hours by min(1, n / 3)", () => {
-    expect([1, 2, 3, 10].map((n) => hourWeight(n, "weighted_hour_mean_v2")))
-      .toEqual([1 / 3, 2 / 3, 1, 1]);
+    expect(
+      [1, 2, 3, 10].map((n) => hourWeight(n, "weighted_hour_mean_v2")),
+    ).toEqual([1 / 3, 2 / 3, 1, 1]);
     expect([1, 2, 3].map((n) => hourWeight(n, "hour_mean_v1"))).toEqual([
       1, 1, 1,
     ]);

src/lib/validations/pulse-day-mean.ts

@@ -14,7 +14,12 @@ export const pulseDayMeanActionSchema = z.strictObject({
 export type PulseDayMeanActionInput = z.infer<typeof pulseDayMeanActionSchema>;
 
 /** Where a day's change between the two methods falls, in bpm. */
-export const PULSE_DAY_MEAN_CHANGE_BUCKETS = ["0-1", "1-2", "2-5", "5+"] as const;
+export const PULSE_DAY_MEAN_CHANGE_BUCKETS = [
+  "0-1",
+  "1-2",
+  "2-5",
+  "5+",
+] as const;
 
 /**
  * What a dry run found. Accounts are numbered in the order they were created