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>
86 lines
1.9 KiB
Go
86 lines
1.9 KiB
Go
package poindexter
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import (
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"math"
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"testing"
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)
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func TestWeightedScore(t *testing.T) {
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tests := []struct {
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name string
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factors []Factor
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want float64
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}{
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{"empty", nil, 0},
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{"single", []Factor{{Value: 5, Weight: 2}}, 10},
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{"multiple", []Factor{
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{Value: 3, Weight: 2}, // 6
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{Value: 1, Weight: -5}, // -5
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}, 1},
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{"lek_heuristic", []Factor{
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{Value: 2, Weight: 2}, // engagement × 2
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{Value: 1, Weight: 3}, // creative × 3
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{Value: 1, Weight: 1.5}, // first person × 1.5
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{Value: 3, Weight: -5}, // compliance × -5
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}, -6.5},
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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 := WeightedScore(tt.factors)
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if math.Abs(got-tt.want) > 1e-9 {
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t.Errorf("WeightedScore = %v, want %v", got, tt.want)
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}
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})
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}
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}
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func TestRatio(t *testing.T) {
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tests := []struct {
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name string
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part, whole float64
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want float64
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}{
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{"half", 5, 10, 0.5},
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{"full", 10, 10, 1},
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{"zero_whole", 5, 0, 0},
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{"zero_part", 0, 10, 0},
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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 := Ratio(tt.part, tt.whole)
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if math.Abs(got-tt.want) > 1e-9 {
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t.Errorf("Ratio(%v, %v) = %v, want %v", tt.part, tt.whole, got, tt.want)
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}
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})
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}
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}
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func TestDelta(t *testing.T) {
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if got := Delta(10, 15); got != 5 {
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t.Errorf("Delta(10, 15) = %v, want 5", got)
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}
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if got := Delta(15, 10); got != -5 {
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t.Errorf("Delta(15, 10) = %v, want -5", got)
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}
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}
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func TestDeltaPercent(t *testing.T) {
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tests := []struct {
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name string
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old, new_ float64
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want float64
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}{
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{"increase", 100, 150, 50},
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{"decrease", 100, 75, -25},
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{"zero_old", 0, 10, 0},
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{"no_change", 50, 50, 0},
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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 := DeltaPercent(tt.old, tt.new_)
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if math.Abs(got-tt.want) > 1e-9 {
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t.Errorf("DeltaPercent(%v, %v) = %v, want %v", tt.old, tt.new_, got, tt.want)
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}
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})
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}
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}
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