Files
llm-testbench/internal/report/discrimination_test.go
T
2026-08-30 12:37:38 +01:00

87 lines
2.8 KiB
Go

package report
import (
"bytes"
"encoding/json"
"strings"
"testing"
"github.com/lukaszraczylo/llm-testbench/internal/eval"
"github.com/lukaszraczylo/llm-testbench/internal/runner"
"github.com/lukaszraczylo/llm-testbench/internal/testkit"
)
func TestDiscrimination_TableShowsSpreadAndInstability(t *testing.T) {
tests := []testkit.Test{
{ID: "sep", Category: "c", Subcategory: "s"},
{ID: "same", Category: "c", Subcategory: "s"},
}
results := []runner.Result{
{Model: "m1", TestID: "sep", Score: eval.Score{Value: 1}},
{Model: "m2", TestID: "sep", Score: eval.Score{Value: 0.2}},
{Model: "m1", TestID: "same", Score: eval.Score{Value: 1}},
{Model: "m2", TestID: "same", Score: eval.Score{Value: 1}},
// Flaky pair for m1/sep: a second attempt disagrees with the first.
{Model: "m1", TestID: "sep", Attempt: 1, Score: eval.Score{Value: 0.4}},
}
var buf bytes.Buffer
if err := Render(&buf, FormatTable, tests, []string{"m1", "m2"}, results); err != nil {
t.Fatalf("Render() error = %v", err)
}
out := buf.String()
for _, want := range []string{
"== Discrimination: 1/2 scored tests separate models by >= 0.05; 1 unstable under repeat ==",
"sep",
"[0.40-1.00]", // unstable range in the score table cell
} {
if !strings.Contains(out, want) {
t.Errorf("output missing %q:\n%s", want, out)
}
}
if strings.Contains(out, "\nsame\t") {
// "same" appears in the per-test table; ensure it is NOT in the
// discrimination rows by checking the section body only.
section := out[strings.Index(out, "== Discrimination"):]
if strings.Contains(section, "same") {
t.Errorf("non-discriminating test listed in discrimination section:\n%s", section)
}
}
}
func TestDiscrimination_JSONStatsAndAttemptRoundTrip(t *testing.T) {
tests := []testkit.Test{{ID: "t1", Category: "c", Subcategory: "s"}}
results := []runner.Result{
{Model: "m1", TestID: "t1", Score: eval.Score{Value: 1}},
{Model: "m2", TestID: "t1", Score: eval.Score{Value: 0.5}},
{Model: "m1", TestID: "t1", Attempt: 1, Score: eval.Score{Value: 0.5}},
}
var buf bytes.Buffer
if err := Render(&buf, FormatJSON, tests, []string{"m1", "m2"}, results); err != nil {
t.Fatalf("Render() error = %v", err)
}
var doc jsonArtifact
if err := json.Unmarshal(buf.Bytes(), &doc); err != nil {
t.Fatalf("unmarshal: %v", err)
}
if len(doc.Stats) != 1 {
t.Fatalf("len(stats) = %d, want 1", len(doc.Stats))
}
st := doc.Stats[0]
if !st.Unstable {
t.Error("Unstable = false, want true (attempts 1.0 vs 0.5)")
}
if st.Spread < 0.24 || st.Spread > 0.26 {
t.Errorf("Spread = %v, want ~0.25 (m1 mean 0.75 vs m2 0.5)", st.Spread)
}
// Attempt indices survive the round trip for compare.
var attempts []AttemptResult
attempts = append(attempts, doc.Results...)
if attempts[2].Attempt != 1 {
t.Errorf("attempt = %d, want 1", attempts[2].Attempt)
}
}