forked from Snider/Poindexter
fa998619dc
Centralizes common math operations used across core/go-ai, core/go, and core/mining into Poindexter as the math pillar (alongside Borg=data, Enchantrix=encryption). New modules: - stats: Sum, Mean, Variance, StdDev, MinMax, IsUnderrepresented - scale: Lerp, InverseLerp, Remap, RoundToN, Clamp, MinMaxScale - epsilon: ApproxEqual, ApproxZero - score: WeightedScore, Ratio, Delta, DeltaPercent - signal: RampUp, SineWave, Oscillate, Noise (seeded RNG) 235 LOC implementation, 509 LOC tests, zero external deps, WASM-safe. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
50 lines
1.2 KiB
Go
50 lines
1.2 KiB
Go
package poindexter
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import "testing"
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func TestApproxEqual(t *testing.T) {
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tests := []struct {
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name string
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a, b float64
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epsilon float64
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want bool
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}{
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{"equal", 1.0, 1.0, 0.01, true},
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{"close", 1.0, 1.005, 0.01, true},
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{"not_close", 1.0, 1.02, 0.01, false},
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{"negative", -1.0, -1.005, 0.01, true},
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{"zero", 0, 0.0001, 0.001, true},
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{"at_boundary", 1.0, 1.01, 0.01, false},
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{"large_epsilon", 100, 200, 150, true},
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}
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for _, tt := range tests {
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t.Run(tt.name, func(t *testing.T) {
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got := ApproxEqual(tt.a, tt.b, tt.epsilon)
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if got != tt.want {
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t.Errorf("ApproxEqual(%v, %v, %v) = %v, want %v", tt.a, tt.b, tt.epsilon, got, tt.want)
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}
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})
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}
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}
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func TestApproxZero(t *testing.T) {
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tests := []struct {
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name string
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v float64
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epsilon float64
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want bool
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}{
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{"zero", 0, 0.01, true},
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{"small_pos", 0.005, 0.01, true},
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{"small_neg", -0.005, 0.01, true},
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{"not_zero", 0.02, 0.01, false},
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}
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for _, tt := range tests {
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t.Run(tt.name, func(t *testing.T) {
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got := ApproxZero(tt.v, tt.epsilon)
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if got != tt.want {
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t.Errorf("ApproxZero(%v, %v) = %v, want %v", tt.v, tt.epsilon, got, tt.want)
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}
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})
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}
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}
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