feat: gamemaster

gamemaster/internal/service/scheduler/service_test.go

@@ -0,0 +1,63 @@
+package scheduler_test
+
+import (
+	"testing"
+	"time"
+
+	"galaxy/gamemaster/internal/service/scheduler"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+func TestComputeNextHappyPathWithoutSkip(t *testing.T) {
+	service := scheduler.New()
+	after := time.Date(2026, time.April, 30, 12, 0, 0, 0, time.UTC)
+	next, skipConsumed, err := service.ComputeNext("0 18 * * *", after, false)
+	require.NoError(t, err)
+	assert.False(t, skipConsumed)
+	expected := time.Date(2026, time.April, 30, 18, 0, 0, 0, time.UTC)
+	assert.Equal(t, expected, next)
+	assert.Equal(t, time.UTC, next.Location())
+}
+
+func TestComputeNextConsumesSkip(t *testing.T) {
+	service := scheduler.New()
+	after := time.Date(2026, time.April, 30, 12, 0, 0, 0, time.UTC)
+	next, skipConsumed, err := service.ComputeNext("0 18 * * *", after, true)
+	require.NoError(t, err)
+	assert.True(t, skipConsumed)
+	expected := time.Date(2026, time.May, 1, 18, 0, 0, 0, time.UTC)
+	assert.Equal(t, expected, next)
+}
+
+func TestComputeNextEveryQuarterHourSkip(t *testing.T) {
+	service := scheduler.New()
+	after := time.Date(2026, time.April, 30, 12, 0, 0, 0, time.UTC)
+	first, _, err := service.ComputeNext("*/15 * * * *", after, false)
+	require.NoError(t, err)
+	skipped, _, err := service.ComputeNext("*/15 * * * *", after, true)
+	require.NoError(t, err)
+	assert.Equal(t, first.Add(15*time.Minute), skipped, "skip advances by exactly one cron step")
+}
+
+func TestComputeNextRejectsInvalidCron(t *testing.T) {
+	service := scheduler.New()
+	_, _, err := service.ComputeNext("not-a-cron", time.Now().UTC(), false)
+	require.Error(t, err)
+}
+
+func TestComputeNextTrimsWhitespace(t *testing.T) {
+	service := scheduler.New()
+	after := time.Date(2026, time.April, 30, 12, 0, 0, 0, time.UTC)
+	next, _, err := service.ComputeNext("  0 18 * * *  ", after, false)
+	require.NoError(t, err)
+	expected := time.Date(2026, time.April, 30, 18, 0, 0, 0, time.UTC)
+	assert.Equal(t, expected, next)
+}
+
+func TestNilServiceRejected(t *testing.T) {
+	var service *scheduler.Service
+	_, _, err := service.ComputeNext("0 18 * * *", time.Now().UTC(), false)
+	require.Error(t, err)
+}