Compute complication timeline entries from event boundaries

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
2026-09-11 16:32:54 +02:00
parent 2e9989eab9
commit d70cdca4e2
2 changed files with 136 additions and 0 deletions
@@ -0,0 +1,89 @@
+import Foundation
+import Testing
+@testable import CalendarrCore
+
+struct ComplicationTimelineTests {
+
+    private static let now = Date(timeIntervalSince1970: 1_789_000_000)
+
+    private static func event(_ id: String, startOffset: TimeInterval,
+                              duration: TimeInterval) -> SnapshotEvent {
+        SnapshotEvent(id: id, title: id,
+                      start: now.addingTimeInterval(startOffset),
+                      end: now.addingTimeInterval(startOffset + duration),
+                      isAllDay: false, colorHex: "#4285f4", location: "", calendarKey: "local:1")
+    }
+
+    private static func snapshot(_ events: [SnapshotEvent]) -> CalendarrSnapshot {
+        CalendarrSnapshot(writtenAt: now,
+                          coverageStart: now.addingTimeInterval(-86400),
+                          coverageEnd: now.addingTimeInterval(14 * 86400),
+                          isLoggedIn: true, writerVersion: "1.0", events: events,
+                          theme: SnapshotTheme(today: "#1", text: "#2", background: "#3",
+                                               line: "#4", primary: "#5", accent: "#6"),
+                          language: "de")
+    }
+
+    @Test("The first entry is always now, so the complication renders immediately")
+    func startsAtNow() {
+        let dates = ComplicationTimeline.entryDates(from: Self.now, in: Self.snapshot([]))
+        #expect(dates.first == Self.now)
+    }
+
+    @Test("Entries are sorted and free of duplicates")
+    func sortedAndDeduplicated() {
+        let snap = Self.snapshot([Self.event("a", startOffset: 3600, duration: 1800),
+                                  Self.event("b", startOffset: 5400, duration: 1800)])
+        let dates = ComplicationTimeline.entryDates(from: Self.now, in: snap)
+
+        #expect(dates == dates.sorted())
+        #expect(Set(dates).count == dates.count)
+    }
+
+    @Test("Event starts and ends inside the horizon become entries")
+    func includesEventBoundaries() {
+        let snap = Self.snapshot([Self.event("a", startOffset: 3600, duration: 1800)])
+        let dates = ComplicationTimeline.entryDates(from: Self.now, in: snap)
+
+        #expect(dates.contains(Self.now.addingTimeInterval(3600)))
+        #expect(dates.contains(Self.now.addingTimeInterval(5400)))
+    }
+
+    @Test("Boundaries outside the horizon are ignored")
+    func ignoresBoundariesBeyondHorizon() {
+        let snap = Self.snapshot([Self.event("far", startOffset: 40 * 3600, duration: 1800)])
+        let dates = ComplicationTimeline.entryDates(from: Self.now, in: snap, horizon: 24 * 3600)
+
+        #expect(dates.contains(Self.now.addingTimeInterval(40 * 3600)) == false)
+        #expect(dates.allSatisfy { $0 <= Self.now.addingTimeInterval(24 * 3600) })
+    }
+
+    @Test("Boundaries already in the past are ignored")
+    func ignoresPastBoundaries() {
+        let snap = Self.snapshot([Self.event("past", startOffset: -7200, duration: 1800)])
+        let dates = ComplicationTimeline.entryDates(from: Self.now, in: snap)
+
+        #expect(dates.allSatisfy { $0 >= Self.now })
+    }
+
+    @Test("An empty calendar still gets hourly entries across the horizon")
+    func fillsHourlyWhenEmpty() {
+        let dates = ComplicationTimeline.entryDates(from: Self.now, in: Self.snapshot([]),
+                                                    horizon: 24 * 3600)
+        #expect(dates.count >= 24)
+    }
+
+    @Test("The entry count is capped, keeping the earliest entries")
+    func capsEntries() {
+        var events: [SnapshotEvent] = []
+        for i in 0..<300 {
+            events.append(Self.event("e\(i)", startOffset: Double(i) * 60, duration: 30))
+        }
+        let dates = ComplicationTimeline.entryDates(from: Self.now, in: Self.snapshot(events),
+                                                    maxEntries: 50)
+
+        #expect(dates.count == 50)
+        #expect(dates.first == Self.now)
+        #expect(dates == dates.sorted())
+    }
+}