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path: root/internal/calendar/calendar_test.go
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package calendar

import (
	"testing"
)

func universalTest() Layer {
	return Layer{ID: "universal", Type: "universal", Cels: map[string]RawCelebration{
		"assumption": {Fields: map[string]string{
			"date": "08-15", "rank": "solemnity", "class": "bvm", "colour": "white",
			"name.en": "Assumption of the BVM", "reading.gospel": "Lk 1:39-56",
		}, Variants: map[string]map[string]string{}},
		" st-monday-optional ": {Fields: map[string]string{}, Variants: map[string]map[string]string{}},
	}}
}

func TestComputeSolemnityBeatsFeria(t *testing.T) {
	got := Compute(d("2025-08-15"), DefaultSelection(), []Layer{universalTest()})
	if got.Observed.Slug != "assumption" {
		t.Fatalf("2025-08-15 observed = %q want assumption", got.Observed.Slug)
	}
	if got.Colour != White || got.Observed.Rank != RankSolemnity {
		t.Errorf("assumption colour/rank wrong: %s / %v", got.Colour, got.Observed.Rank)
	}
	if len(got.Observed.Masses) == 0 || got.Observed.Masses[0].Readings[0].Part != "gospel" {
		t.Errorf("proper reading not surfaced: %+v", got.Observed.Masses)
	}
}

func TestComputeCycles(t *testing.T) {
	// Advent 2024 opens liturgical year 2025 → Sunday cycle C, weekday cycle I.
	got := Compute(d("2025-01-15"), DefaultSelection(), []Layer{universalTest()})
	if got.SundayCycle != "C" {
		t.Errorf("2024-25 Sunday cycle = %s want C", got.SundayCycle)
	}
	if got.WeekdayCycle != "I" {
		t.Errorf("2025 weekday cycle = %s want I", got.WeekdayCycle)
	}
}