| 1 | package calendartest |
| 2 | |
| 3 | import ( |
| 4 | "strings" |
| 5 | "testing" |
| 6 | "time" |
| 7 | |
| 8 | calendar "amadan.net/oficina/calendar/internal/calendar" |
| 9 | ) |
| 10 | |
| 11 | // The sentence at the top of Today is the app's one opinion, so it gets |
| 12 | // a test rather than a hope. These assert the wording, because the |
| 13 | // wording IS the feature — a summary that says the right number in the |
| 14 | // wrong voice is a summary nobody reads twice. |
| 15 | func TestDaySummaryReadsLikeASentence(t *testing.T) { |
| 16 | const tz = "UTC" |
| 17 | day := time.Date(2026, 9, 2, 12, 0, 0, 0, time.UTC) // a Wednesday |
| 18 | dayStart, dayEnd, err := calendar.DayBounds(day, tz) |
| 19 | if err != nil { |
| 20 | t.Fatalf("DayBounds: %v", err) |
| 21 | } |
| 22 | |
| 23 | at := func(hh, mm int) int64 { |
| 24 | return time.Date(2026, 9, 2, hh, mm, 0, 0, time.UTC).Unix() |
| 25 | } |
| 26 | ev := func(kind string, fromH, fromM, toH, toM int) calendar.EventView { |
| 27 | return calendar.EventView{ |
| 28 | Event: calendar.Event{Kind: kind}, |
| 29 | OccStartUTC: at(fromH, fromM), |
| 30 | OccEndUTC: at(toH, toM), |
| 31 | } |
| 32 | } |
| 33 | |
| 34 | t.Run("an empty day says so plainly", func(t *testing.T) { |
| 35 | got := calendar.SummariseDay(day, nil, dayStart, dayEnd, tz).Sentence |
| 36 | if got != "Wednesday. Nothing booked." { |
| 37 | t.Errorf("sentence = %q", got) |
| 38 | } |
| 39 | }) |
| 40 | |
| 41 | t.Run("one thing is not pluralised", func(t *testing.T) { |
| 42 | got := calendar.SummariseDay(day, []calendar.EventView{ |
| 43 | ev(calendar.KindMeeting, 9, 30, 10, 0), |
| 44 | }, dayStart, dayEnd, tz).Sentence |
| 45 | if !strings.HasPrefix(got, "Wednesday. One thing; the first at 09:30, the last ends at 10:00.") { |
| 46 | t.Errorf("sentence = %q", got) |
| 47 | } |
| 48 | }) |
| 49 | |
| 50 | t.Run("the gap is between the first and last, not the whole day", func(t *testing.T) { |
| 51 | s := calendar.SummariseDay(day, []calendar.EventView{ |
| 52 | ev(calendar.KindMeeting, 9, 30, 10, 0), |
| 53 | ev(calendar.KindMeeting, 16, 0, 17, 0), |
| 54 | }, dayStart, dayEnd, tz) |
| 55 | // 09:30 to 17:00 is 7h30; 1h30 of it is booked; 6h free. |
| 56 | if s.UnbookedMin != 360 { |
| 57 | t.Errorf("UnbookedMin = %d, want 360", s.UnbookedMin) |
| 58 | } |
| 59 | if !strings.Contains(s.Sentence, "That leaves six hours unbooked between them.") { |
| 60 | t.Errorf("sentence = %q", s.Sentence) |
| 61 | } |
| 62 | }) |
| 63 | |
| 64 | t.Run("overlapping meetings do not consume the day twice", func(t *testing.T) { |
| 65 | s := calendar.SummariseDay(day, []calendar.EventView{ |
| 66 | ev(calendar.KindMeeting, 9, 0, 11, 0), |
| 67 | ev(calendar.KindMeeting, 10, 0, 12, 0), |
| 68 | ev(calendar.KindMeeting, 15, 0, 16, 0), |
| 69 | }, dayStart, dayEnd, tz) |
| 70 | // 09:00-12:00 merged is three hours, plus one at 15:00. The |
| 71 | // span is 09:00-16:00, so three hours are free. Counting the |
| 72 | // overlap twice would report four. |
| 73 | if s.UnbookedMin != 180 { |
| 74 | t.Errorf("UnbookedMin = %d, want 180 (the 10:00-11:00 overlap counted once)", s.UnbookedMin) |
| 75 | } |
| 76 | }) |
| 77 | |
| 78 | t.Run("a full day says the alarming thing plainly", func(t *testing.T) { |
| 79 | s := calendar.SummariseDay(day, []calendar.EventView{ |
| 80 | ev(calendar.KindMeeting, 9, 0, 13, 0), |
| 81 | ev(calendar.KindMeeting, 13, 0, 17, 0), |
| 82 | }, dayStart, dayEnd, tz) |
| 83 | if !strings.Contains(s.Sentence, "There is no unbooked hour between them.") { |
| 84 | t.Errorf("sentence = %q", s.Sentence) |
| 85 | } |
| 86 | }) |
| 87 | |
| 88 | // A birthday does not make a Tuesday fuller. Notes are excluded |
| 89 | // from the arithmetic entirely. |
| 90 | t.Run("notes do not occupy the day", func(t *testing.T) { |
| 91 | s := calendar.SummariseDay(day, []calendar.EventView{ |
| 92 | ev(calendar.KindNote, 9, 0, 10, 0), |
| 93 | }, dayStart, dayEnd, tz) |
| 94 | if s.Count != 0 { |
| 95 | t.Errorf("Count = %d, want 0: a note is not a thing that occupies time", s.Count) |
| 96 | } |
| 97 | if s.Sentence != "Wednesday. Nothing booked." { |
| 98 | t.Errorf("sentence = %q", s.Sentence) |
| 99 | } |
| 100 | }) |
| 101 | |
| 102 | // The sentence must never contain a digit where a word was meant, |
| 103 | // nor a stray fragment — the failure mode of assembling prose in |
| 104 | // code is a sentence that is grammatical nonsense. |
| 105 | t.Run("hours and minutes read as English", func(t *testing.T) { |
| 106 | s := calendar.SummariseDay(day, []calendar.EventView{ |
| 107 | ev(calendar.KindMeeting, 9, 0, 9, 30), |
| 108 | ev(calendar.KindMeeting, 11, 45, 12, 0), |
| 109 | }, dayStart, dayEnd, tz) |
| 110 | // 09:00-12:00 span, 45 minutes booked, so 2h15 free. |
| 111 | if !strings.Contains(s.Sentence, "two hours and 15 minutes unbooked") { |
| 112 | t.Errorf("sentence = %q", s.Sentence) |
| 113 | } |
| 114 | }) |
| 115 | } |
| 116 | |
amadan