73 lines
2.6 KiB
Go
73 lines
2.6 KiB
Go
|
package basic
|
||
|
|
|
||
|
|
import (
|
||
|
|
"errors"
|
||
|
|
"testing"
|
||
|
|
"time"
|
||
|
|
)
|
||
|
|
|
||
|
|
func TestPlanetOccultationFootprintsAtReturnsExactRequestedInstant(t *testing.T) {
|
||
|
|
start := time.Date(2025, time.January, 5, 0, 0, 0, 0, time.FixedZone("UTC+8", 8*60*60))
|
||
|
|
events, err := FindBestPlanetOccultations(
|
||
|
|
start, start.Add(24*time.Hour), OccultationSaturn, OccultationSearchOptions{MaxEvents: 1},
|
||
|
|
)
|
||
|
|
if err != nil || len(events) != 1 {
|
||
|
|
t.Fatalf("FindBestPlanetOccultations events=%d err=%v, want one", len(events), err)
|
||
|
|
}
|
||
|
|
at := events[0].Greatest.Add(123 * time.Nanosecond)
|
||
|
|
instant, err := PlanetOccultationFootprintsAt(at, OccultationSaturn)
|
||
|
|
if err != nil {
|
||
|
|
t.Fatalf("PlanetOccultationFootprintsAt: %v", err)
|
||
|
|
}
|
||
|
|
if instant.Partial == nil || instant.Total == nil {
|
||
|
|
t.Fatalf("instant footprints partial=%v total=%v, want both", instant.Partial != nil, instant.Total != nil)
|
||
|
|
}
|
||
|
|
for name, footprint := range map[string]*OccultationFootprint{
|
||
|
|
"partial": instant.Partial,
|
||
|
|
"total": instant.Total,
|
||
|
|
} {
|
||
|
|
if !footprint.Time.Equal(at) {
|
||
|
|
t.Fatalf("%s footprint time=%v, want %v", name, footprint.Time, at)
|
||
|
|
}
|
||
|
|
if len(footprint.Polygons) == 0 || len(footprint.Boundaries) == 0 {
|
||
|
|
t.Fatalf("%s footprint has no visible geometry", name)
|
||
|
|
}
|
||
|
|
for _, boundary := range footprint.Boundaries {
|
||
|
|
for _, point := range boundary {
|
||
|
|
if !point.Time.Equal(at) {
|
||
|
|
t.Fatalf("%s boundary time=%v, want %v", name, point.Time, at)
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
func TestStarOccultationFootprintAtReturnsEmptyOutsideEvent(t *testing.T) {
|
||
|
|
star := StarCoordinate{
|
||
|
|
ID: "Antares", RA: 247.35166667, Dec: -26.43194444,
|
||
|
|
Epoch: time.Date(2000, time.January, 1, 12, 0, 0, 0, time.UTC),
|
||
|
|
Frame: CoordinateFrameJ2000,
|
||
|
|
}
|
||
|
|
instant, err := StarOccultationFootprintAt(
|
||
|
|
time.Date(2024, time.March, 1, 17, 0, 0, 0, time.UTC), star,
|
||
|
|
)
|
||
|
|
if err != nil {
|
||
|
|
t.Fatalf("StarOccultationFootprintAt: %v", err)
|
||
|
|
}
|
||
|
|
if instant.Footprint != nil {
|
||
|
|
t.Fatal("outside-event stellar footprint is not nil")
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
func TestOccultationFootprintAtValidatesInputs(t *testing.T) {
|
||
|
|
if _, err := PlanetOccultationFootprintsAt(time.Time{}, OccultationSaturn); !errors.Is(err, ErrInvalidOccultationInput) {
|
||
|
|
t.Fatalf("zero time error=%v, want ErrInvalidOccultationInput", err)
|
||
|
|
}
|
||
|
|
if _, err := PlanetOccultationFootprintsAt(time.Now(), OccultationPlanet("earth")); !errors.Is(err, ErrInvalidOccultationInput) {
|
||
|
|
t.Fatalf("invalid planet error=%v, want ErrInvalidOccultationInput", err)
|
||
|
|
}
|
||
|
|
if _, err := StarOccultationFootprintAt(time.Now(), StarCoordinate{}); !errors.Is(err, ErrInvalidOccultationInput) {
|
||
|
|
t.Fatalf("invalid star error=%v, want ErrInvalidOccultationInput", err)
|
||
|
|
}
|
||
|
|
}
|