2026-05-03 19:00:08 +08:00
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package venus
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import (
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"testing"
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"time"
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)
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func TestTransitWrappers(t *testing.T) {
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loc := time.FixedZone("CST", 8*3600)
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info := NextTransit(time.Date(2012, 1, 1, 0, 0, 0, 0, loc))
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if !info.Valid {
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t.Fatal("expected valid transit")
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}
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if info.Greatest.Location() != loc {
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t.Fatalf("timezone mismatch: got %v want %v", info.Greatest.Location(), loc)
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}
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if info.Greatest.Year() != 2012 || info.Greatest.Month() != time.June || info.Greatest.Day() != 6 {
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t.Fatalf("unexpected greatest time: %s", info.Greatest)
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}
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if !info.HasInternal || info.Duration <= 0 || info.InternalDuration <= 0 {
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t.Fatalf("unexpected durations: %+v", info)
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}
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}
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2026-10-15 23:54:15 +08:00
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func TestLocalTransitWrapper(t *testing.T) {
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info := NextTransit(time.Date(2012, 1, 1, 0, 0, 0, 0, time.UTC))
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local := LocalTransit(info, 151.2093, -33.8688, 0)
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if !local.Valid || !local.HasInternal || !local.Visible {
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t.Fatalf("unexpected local transit: %+v", local)
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}
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// 悉尼 2012 金星凌日：一触约 22:16 UTC，太阳全程在地平上。
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want := time.Date(2012, 6, 5, 22, 16, 0, 0, time.UTC)
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if diff := local.Start.Time.Sub(want); diff < -time.Minute || diff > time.Minute {
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t.Fatalf("C1 %s", local.Start.Time)
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}
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if !local.Sunrise.IsZero() || !local.Sunset.IsZero() || local.End.SunAltitude <= 0 {
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t.Fatalf("unexpected sun events: %+v", local)
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}
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}
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