chore: add tests for entry util

Author: stampaaaron

apps/frontend/src/utils/entry.test.ts

@@ -0,0 +1,63 @@
+import { beforeEach, describe, expect, it } from "vitest";
+import { Entry, resolveGaps, resolveGapsInDay } from "./entry";
+
+describe("entry utils", () => {
+  let entries: Partial<Entry>[];
+
+  beforeEach(() => {
+    entries = [
+      { startedAt: "08:00", endedAt: "10:00", weekday: 1 },
+      { startedAt: "12:00", endedAt: "14:00", weekday: 1 },
+    ];
+  });
+
+  it("should detect gap between two entries", () => {
+    const gaps = resolveGapsInDay(entries as Entry[]);
+
+    expect(gaps).toEqual([["10:00", "12:00"]]);
+  });
+
+  it("shouldn't detect gap with overlapping entries", () => {
+    entries.push({ startedAt: "09:00", endedAt: "13:00" });
+
+    const gaps = resolveGapsInDay(entries as Entry[]);
+
+    expect(gaps).toEqual([]);
+  });
+
+  it("should detect gap with overlapping entries", () => {
+    entries.push({ startedAt: "09:00", endedAt: "11:00" });
+
+    const gaps = resolveGapsInDay(entries as Entry[]);
+
+    expect(gaps).toEqual([["11:00", "12:00"]]);
+  });
+
+  it("should detect gaps with entries in diffrent sort order", () => {
+    entries = entries.toReversed();
+
+    const gaps = resolveGapsInDay(entries as Entry[]);
+
+    expect(gaps).toEqual([["10:00", "12:00"]]);
+  });
+
+  it("should detect multiple gaps", () => {
+    entries.push({ startedAt: "15:00", endedAt: "16:00" });
+
+    const gaps = resolveGapsInDay(entries as Entry[]);
+
+    expect(gaps.length).toBe(2);
+  });
+
+  it("should detect gaps for multiple weekdays", () => {
+    entries.push({ startedAt: "08:00", endedAt: "10:00", weekday: 2 });
+    entries.push({ startedAt: "12:00", endedAt: "14:00", weekday: 2 });
+
+    const gapsPerDay = resolveGaps(entries as Entry[]);
+
+    console.log(gapsPerDay);
+
+    expect(gapsPerDay[1]).toHaveLength(1);
+    expect(gapsPerDay[2]).toHaveLength(1);
+  });
+});

apps/frontend/src/utils/entry.ts

@@ -1,6 +1,6 @@
 import { components } from "../api.gen";
 
-type Entry = components["schemas"]["QuestionnaireEntryDto"];
+export type Entry = components["schemas"]["QuestionnaireEntryDto"];
 export type Gap = [string, string];
 export type GapsPerDay = [Gap[], Gap[], Gap[], Gap[], Gap[], Gap[], Gap[]];
 
@@ -13,7 +13,7 @@ const groupByWeekday = (entries: Entry[]) =>
 export const resolveGaps = (entries: Entry[]) => groupByWeekday(entries).map(resolveGapsInDay) as GapsPerDay;
 
 // inspired by: https://cs.stackexchange.com/questions/133276/algorithm-to-compute-the-gaps-between-a-set-of-intervals
-const resolveGapsInDay = (entriesOfSameDay: Entry[]) => {
+export const resolveGapsInDay = (entriesOfSameDay: Entry[]) => {
   const entriesSortedByStart = entriesOfSameDay.toSorted((a, b) => a.startedAt.localeCompare(b.startedAt));
 
   const gaps: Gap[] = [];