44 lines
1.1 KiB
Go
44 lines
1.1 KiB
Go
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// 被测契约：缓存基与精确基在覆盖区间内相差 < 1e-12，区间外逐位相同。
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package ltp
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import (
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"math"
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"testing"
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)
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func TestEclipticBasisMatchesExact(t *testing.T) {
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worst := 0.0
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for epj := -10199.9; epj < 10199.9; epj += 3.137 {
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ax, ay, az := EclipticBasis(epj)
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ex, ey, ez := EclipticBasisExact(epj)
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for i := 0; i < 3; i++ {
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worst = math.Max(worst, math.Abs(ax[i]-ex[i]))
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worst = math.Max(worst, math.Abs(ay[i]-ey[i]))
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worst = math.Max(worst, math.Abs(az[i]-ez[i]))
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}
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}
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t.Logf("max component diff %.3g", worst)
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if worst > 1e-12 {
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t.Fatalf("cached basis differs by %.3g", worst)
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}
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for _, epj := range []float64{-10300, 10300} {
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ax, _, az := EclipticBasis(epj)
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ex, _, ez := EclipticBasisExact(epj)
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if ax != ex || az != ez {
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t.Fatalf("epj %v: outside the cache the exact basis must be used", epj)
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}
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}
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}
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func BenchmarkEclipticBasis(b *testing.B) {
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for i := 0; i < b.N; i++ {
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EclipticBasis(2000 + float64(i%7300)*0.27)
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}
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}
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func BenchmarkEclipticBasisExact(b *testing.B) {
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for i := 0; i < b.N; i++ {
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EclipticBasisExact(2000 + float64(i%7300)*0.27)
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}
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}
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