Files
weatherreporter/internal/app/batch_plan_test.go

218 lines
7.1 KiB
Go

package app
import (
"strings"
"testing"
"time"
"gitea.maximumdirect.net/eric/weatherreporter/internal/timeutil"
"gitea.maximumdirect.net/eric/weatherreporter/internal/weatherdata"
)
func TestEligibleDailyDatesRequiresFullOrdinaryLocalDay(t *testing.T) {
location := mustLoadTestLocation(t, "America/Chicago")
hourly := hourlyRun(fullDayPeriods(t, "2026-05-31", location)...)
got := eligibleDailyDates(hourly, mustParse("2026-05-29T08:00:00-05:00"), location)
assertLocalDates(t, got, location, "2026-05-31")
}
func TestEligibleDailyDatesMatchesFixedOffsetStartInstants(t *testing.T) {
location := mustLoadTestLocation(t, "America/Chicago")
hourly := hourlyRun(fixedOffsetPeriods(t, fullDayPeriods(t, "2026-05-31", location))...)
got := eligibleDailyDates(hourly, mustParse("2026-05-29T08:00:00-05:00"), location)
assertLocalDates(t, got, location, "2026-05-31")
}
func TestEligibleDailyDatesSkipsDayWithMissingRequiredHour(t *testing.T) {
location := mustLoadTestLocation(t, "America/Chicago")
periods := fullDayPeriods(t, "2026-05-31", location)
periods = append(periods[:12], periods[13:]...)
hourly := hourlyRun(periods...)
got := eligibleDailyDates(hourly, mustParse("2026-05-29T08:00:00-05:00"), location)
assertLocalDates(t, got, location)
}
func TestEligibleDailyDatesSkipsPartialFinalDay(t *testing.T) {
location := mustLoadTestLocation(t, "America/Chicago")
periods := fullDayPeriods(t, "2026-05-31", location)
periods = append(periods, partialDayPeriods(t, "2026-06-01", location, 12)...)
hourly := hourlyRun(periods...)
got := eligibleDailyDates(hourly, mustParse("2026-05-29T08:00:00-05:00"), location)
assertLocalDates(t, got, location, "2026-05-31")
}
func TestEligibleDailyDatesStartsAfterTomorrow(t *testing.T) {
location := mustLoadTestLocation(t, "America/Chicago")
periods := fullDayPeriods(t, "2026-05-29", location)
periods = append(periods, fullDayPeriods(t, "2026-05-30", location)...)
periods = append(periods, fullDayPeriods(t, "2026-05-31", location)...)
hourly := hourlyRun(periods...)
got := eligibleDailyDates(hourly, mustParse("2026-05-29T08:00:00-05:00"), location)
assertLocalDates(t, got, location, "2026-05-31")
}
func TestEligibleDailyDatesReturnsMultipleFutureDatesInOrder(t *testing.T) {
location := mustLoadTestLocation(t, "America/Chicago")
periods := fullDayPeriods(t, "2026-05-31", location)
periods = append(periods, fullDayPeriods(t, "2026-06-01", location)...)
hourly := hourlyRun(periods...)
got := eligibleDailyDates(hourly, mustParse("2026-05-29T08:00:00-05:00"), location)
assertLocalDates(t, got, location, "2026-05-31", "2026-06-01")
}
func TestEligibleDailyDatesIgnoresNonHourlyAndInvalidPeriods(t *testing.T) {
location := mustLoadTestLocation(t, "America/Chicago")
day := timeutil.CivilDay(mustParseLocalDate(t, "2026-05-31", location), location)
periods := []weatherdata.ForecastPeriod{
{StartTime: day.Start, EndTime: day.Start.Add(2 * time.Hour)},
{StartTime: day.Start.Add(time.Hour), EndTime: day.Start.Add(time.Hour)},
{StartTime: time.Time{}, EndTime: day.Start.Add(3 * time.Hour)},
}
periods = append(periods, fullDayPeriods(t, "2026-06-01", location)...)
hourly := hourlyRun(periods...)
got := eligibleDailyDates(hourly, mustParse("2026-05-29T08:00:00-05:00"), location)
assertLocalDates(t, got, location, "2026-06-01")
}
func TestEligibleDailyDatesUsesDSTCivilDayInstants(t *testing.T) {
location := mustLoadTestLocation(t, "America/New_York")
tests := []struct {
name string
now string
date string
}{
{
name: "spring forward",
now: "2026-03-06T08:00:00-05:00",
date: "2026-03-08",
},
{
name: "fall back",
now: "2026-10-30T08:00:00-04:00",
date: "2026-11-01",
},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
hourly := hourlyRun(fullDayPeriods(t, tt.date, location)...)
got := eligibleDailyDates(hourly, mustParse(tt.now), location)
assertLocalDates(t, got, location, tt.date)
})
}
}
func TestEligibleDailyDatesReturnsNoneWithoutHourlyForecast(t *testing.T) {
location := mustLoadTestLocation(t, "America/Chicago")
fullDay := fullDayPeriods(t, "2026-05-31", location)
tests := []struct {
name string
hourly *weatherdata.ForecastRun
}{
{name: "nil run"},
{name: "empty periods", hourly: hourlyRun()},
{name: "non-hourly product", hourly: forecastRun("narrative", fullDay...)},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
got := eligibleDailyDates(tt.hourly, mustParse("2026-05-29T08:00:00-05:00"), location)
assertLocalDates(t, got, location)
})
}
}
func hourlyRun(periods ...weatherdata.ForecastPeriod) *weatherdata.ForecastRun {
return forecastRun("hourly", periods...)
}
func forecastRun(product string, periods ...weatherdata.ForecastPeriod) *weatherdata.ForecastRun {
return &weatherdata.ForecastRun{
Product: product,
Periods: periods,
}
}
func fullDayPeriods(t *testing.T, date string, location *time.Location) []weatherdata.ForecastPeriod {
t.Helper()
day := timeutil.CivilDay(mustParseLocalDate(t, date, location), location)
var periods []weatherdata.ForecastPeriod
for start := day.Start; start.Before(day.End); start = start.Add(time.Hour) {
periods = append(periods, weatherdata.ForecastPeriod{
StartTime: start,
EndTime: start.Add(time.Hour),
})
}
return periods
}
func partialDayPeriods(t *testing.T, date string, location *time.Location, count int) []weatherdata.ForecastPeriod {
t.Helper()
periods := fullDayPeriods(t, date, location)
if count > len(periods) {
count = len(periods)
}
return periods[:count]
}
func fixedOffsetPeriods(t *testing.T, periods []weatherdata.ForecastPeriod) []weatherdata.ForecastPeriod {
t.Helper()
out := make([]weatherdata.ForecastPeriod, 0, len(periods))
for _, period := range periods {
start, err := time.Parse(time.RFC3339, period.StartTime.Format(time.RFC3339))
if err != nil {
t.Fatalf("parse fixed-offset start: %v", err)
}
end, err := time.Parse(time.RFC3339, period.EndTime.Format(time.RFC3339))
if err != nil {
t.Fatalf("parse fixed-offset end: %v", err)
}
out = append(out, weatherdata.ForecastPeriod{StartTime: start, EndTime: end})
}
return out
}
func assertLocalDates(t *testing.T, got []time.Time, location *time.Location, want ...string) {
t.Helper()
gotDates := make([]string, 0, len(got))
for _, date := range got {
gotDates = append(gotDates, date.In(location).Format(timeutil.DateLayout))
}
if strings.Join(gotDates, ",") != strings.Join(want, ",") {
t.Fatalf("eligibleDailyDates() = [%s], want [%s]", strings.Join(gotDates, ","), strings.Join(want, ","))
}
for _, date := range got {
day := timeutil.CivilDay(date, location)
if !date.Equal(day.Start) {
t.Fatalf("eligible date %s is not local civil day start %s", date, day.Start)
}
}
}
func mustLoadTestLocation(t *testing.T, name string) *time.Location {
t.Helper()
location, err := time.LoadLocation(name)
if err != nil {
t.Fatalf("LoadLocation(%q) error = %v", name, err)
}
return location
}
func mustParseLocalDate(t *testing.T, value string, location *time.Location) time.Time {
t.Helper()
parsed, err := timeutil.ParseLocalDate(value, location)
if err != nil {
t.Fatalf("ParseLocalDate(%q) error = %v", value, err)
}
return parsed
}