Add bounded semantic candidate preparation

This commit is contained in:
2026-08-09 15:52:55 +00:00
parent 65e5d65d14
commit ee71dc4937
3 changed files with 673 additions and 0 deletions

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// Package semanticreconcile prepares and validates bounded materials for
// domain-neutral semantic reconciliation.
package semanticreconcile

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package semanticreconcile
import (
"crypto/sha256"
"encoding/hex"
"encoding/json"
"fmt"
"sort"
"gitea.maximumdirect.net/eric/notarius/internal/core/source"
"gitea.maximumdirect.net/eric/notarius/internal/framework/contracts"
)
const (
candidateInputName = "candidates"
transcriptInputName = "transcript"
jsonMediaType = "application/json"
)
var defaultLimits = Limits{
ContextRadius: 2,
MaximumCandidates: 128,
MaximumMaterialBytes: 262144,
}
// Candidate is contextual source-backed input supplied by a typed consumer.
// Prepare does not retain or mutate Label or SourceRefs.
type Candidate struct {
Label string
SourceRefs []source.SourceRef
}
// Limits bounds source context and serialized model input.
type Limits struct {
ContextRadius int
MaximumCandidates int
MaximumMaterialBytes int
}
// DefaultLimits returns the core-owned production limits.
func DefaultLimits() Limits {
return defaultLimits
}
// Validate rejects limits that cannot safely bound preparation.
func (limits Limits) Validate() error {
if limits.ContextRadius < 0 {
return fmt.Errorf("semantic reconciliation limits: context radius must not be negative")
}
if limits.MaximumCandidates <= 0 {
return fmt.Errorf("semantic reconciliation limits: maximum candidates must be positive")
}
if limits.MaximumMaterialBytes <= 0 {
return fmt.Errorf("semantic reconciliation limits: maximum bytes must be positive")
}
return nil
}
// Disposition describes whether prepared materials may be sent to a model.
type Disposition uint8
const (
// Ready indicates that the result contains complete bounded materials.
Ready Disposition = iota + 1
// InsufficientCandidates indicates that fewer than two candidates were
// eligible after source-reference validation.
InsufficientCandidates
// LimitExceeded indicates that a candidate or serialized-material bound was
// exceeded and no request should be split or sent.
LimitExceeded
)
// CandidateMapping relates one model-visible request-local ID to the
// corresponding zero-based position in the caller's candidate slice.
type CandidateMapping struct {
CandidateID int
CandidatePosition int
}
// Preparation owns the visible candidate mapping and prompt materials.
type Preparation struct {
disposition Disposition
mappings []CandidateMapping
materials contracts.LLMInputSet
}
// Disposition returns the preparation outcome.
func (preparation Preparation) Disposition() Disposition {
return preparation.disposition
}
// CandidateMappings returns an owned copy in model-visible candidate order.
func (preparation Preparation) CandidateMappings() []CandidateMapping {
return append([]CandidateMapping(nil), preparation.mappings...)
}
// Materials returns independently owned candidate and transcript materials.
// It is empty unless Disposition returns Ready.
func (preparation Preparation) Materials() contracts.LLMInputSet {
return preparation.materials.Clone()
}
type sourceRange struct {
StartUnitID int `json:"start_unit_id"`
EndUnitID int `json:"end_unit_id"`
}
type visibleCandidate struct {
CandidateID int `json:"candidate_id"`
Label string `json:"label"`
SourceRefs []sourceRange `json:"source_refs"`
}
type candidateInput struct {
Candidates []visibleCandidate `json:"candidates"`
}
type transcriptInput struct {
Windows []transcriptWindow `json:"windows"`
}
type transcriptWindow struct {
Units []transcriptUnit `json:"units"`
}
type transcriptUnit struct {
ID int `json:"id"`
Kind string `json:"kind"`
Text string `json:"text"`
Metadata map[string]any `json:"metadata,omitempty"`
Cited bool `json:"cited"`
}
type sourceInterval struct {
start int
end int
}
type preparedCandidate struct {
position int
references []sourceRange
intervals []sourceInterval
}
// Prepare validates candidates and constructs bounded, source-ordered model
// inputs. Deterministic skip conditions are represented by the returned
// disposition rather than an error.
func Prepare(document *source.SourceDocument, candidates []Candidate, limits Limits) (Preparation, error) {
if err := limits.Validate(); err != nil {
return Preparation{}, err
}
documentIndex := source.NewDocumentIndex(document)
prepared := make([]preparedCandidate, 0, len(candidates))
for candidatePosition, candidate := range candidates {
references, intervals, valid := prepareReferences(documentIndex, candidate.SourceRefs)
if !valid {
continue
}
prepared = append(prepared, preparedCandidate{
position: candidatePosition,
references: references,
intervals: intervals,
})
}
result := Preparation{
disposition: InsufficientCandidates,
mappings: make([]CandidateMapping, len(prepared)),
}
views := make([]visibleCandidate, len(prepared))
for index, candidate := range prepared {
candidateID := index + 1
result.mappings[index] = CandidateMapping{
CandidateID: candidateID,
CandidatePosition: candidate.position,
}
views[index] = visibleCandidate{
CandidateID: candidateID,
Label: candidates[candidate.position].Label,
SourceRefs: cloneSourceRanges(candidate.references),
}
}
if len(prepared) < 2 {
return result, nil
}
if len(prepared) > limits.MaximumCandidates {
result.disposition = LimitExceeded
return result, nil
}
candidateContent, err := json.Marshal(candidateInput{Candidates: views})
if err != nil {
return Preparation{}, fmt.Errorf("prepare semantic reconciliation: encode candidate material: %w", err)
}
if len(candidateContent) > limits.MaximumMaterialBytes {
result.disposition = LimitExceeded
return result, nil
}
intervals := make([]sourceInterval, 0)
cited := make([]bool, len(document.Units))
for _, candidate := range prepared {
for _, interval := range candidate.intervals {
for position := interval.start; position <= interval.end; position++ {
cited[position] = true
}
intervals = append(intervals, sourceInterval{
start: max(0, interval.start-limits.ContextRadius),
end: min(len(document.Units)-1, interval.end+limits.ContextRadius),
})
}
}
windows, err := buildContextWindows(document.Units, coalesceIntervals(intervals), cited)
if err != nil {
return Preparation{}, fmt.Errorf("prepare semantic reconciliation: build transcript material: %w", err)
}
transcriptContent, err := json.Marshal(transcriptInput{Windows: windows})
if err != nil {
return Preparation{}, fmt.Errorf("prepare semantic reconciliation: encode transcript material: %w", err)
}
if len(transcriptContent) > limits.MaximumMaterialBytes-len(candidateContent) {
result.disposition = LimitExceeded
return result, nil
}
result.disposition = Ready
result.materials = contracts.LLMInputSet{
candidateInputName: newInputMaterial(candidateInputName, candidateContent),
transcriptInputName: newInputMaterial(transcriptInputName, transcriptContent),
}
return result, nil
}
func prepareReferences(index source.DocumentIndex, references []source.SourceRef) ([]sourceRange, []sourceInterval, bool) {
if len(references) == 0 {
return nil, nil, false
}
type referencedInterval struct {
reference sourceRange
interval sourceInterval
}
prepared := make([]referencedInterval, 0, len(references))
for _, reference := range references {
if err := index.ValidateRef(reference); err != nil {
return nil, nil, false
}
start, _ := index.Position(reference.StartUnitID)
end, _ := index.Position(reference.EndUnitID)
prepared = append(prepared, referencedInterval{
reference: sourceRange{StartUnitID: reference.StartUnitID, EndUnitID: reference.EndUnitID},
interval: sourceInterval{start: start, end: end},
})
}
sort.Slice(prepared, func(left, right int) bool {
if prepared[left].interval.start != prepared[right].interval.start {
return prepared[left].interval.start < prepared[right].interval.start
}
return prepared[left].interval.end < prepared[right].interval.end
})
canonicalReferences := make([]sourceRange, 0, len(prepared))
intervals := make([]sourceInterval, 0, len(prepared))
for _, item := range prepared {
if len(canonicalReferences) > 0 && canonicalReferences[len(canonicalReferences)-1] == item.reference {
continue
}
canonicalReferences = append(canonicalReferences, item.reference)
intervals = append(intervals, item.interval)
}
return canonicalReferences, intervals, true
}
func cloneSourceRanges(ranges []sourceRange) []sourceRange {
if len(ranges) == 0 {
return []sourceRange{}
}
return append([]sourceRange(nil), ranges...)
}
func coalesceIntervals(intervals []sourceInterval) []sourceInterval {
if len(intervals) == 0 {
return nil
}
ordered := append([]sourceInterval(nil), intervals...)
sort.Slice(ordered, func(left, right int) bool {
if ordered[left].start != ordered[right].start {
return ordered[left].start < ordered[right].start
}
return ordered[left].end < ordered[right].end
})
coalesced := make([]sourceInterval, 0, len(ordered))
for _, interval := range ordered {
if len(coalesced) == 0 || interval.start > coalesced[len(coalesced)-1].end+1 {
coalesced = append(coalesced, interval)
continue
}
if interval.end > coalesced[len(coalesced)-1].end {
coalesced[len(coalesced)-1].end = interval.end
}
}
return coalesced
}
func buildContextWindows(units []source.SourceUnit, intervals []sourceInterval, cited []bool) ([]transcriptWindow, error) {
windows := make([]transcriptWindow, 0, len(intervals))
for _, interval := range intervals {
window := transcriptWindow{Units: make([]transcriptUnit, 0, interval.end-interval.start+1)}
for position := interval.start; position <= interval.end; position++ {
unit := units[position]
metadata, err := source.CloneMetadata(unit.Metadata)
if err != nil {
return nil, err
}
window.Units = append(window.Units, transcriptUnit{
ID: unit.ID,
Kind: unit.Kind,
Text: unit.Text,
Metadata: metadata,
Cited: cited[position],
})
}
windows = append(windows, window)
}
return windows, nil
}
func newInputMaterial(name string, content []byte) contracts.LLMInputMaterial {
digest := sha256.Sum256(content)
return contracts.NewLLMInputMaterial(
name,
jsonMediaType,
content,
"sha256:"+hex.EncodeToString(digest[:]),
"",
)
}

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package semanticreconcile
import (
"crypto/sha256"
"encoding/hex"
"encoding/json"
"reflect"
"strings"
"testing"
"gitea.maximumdirect.net/eric/notarius/internal/core/source"
)
func TestPrepareBuildsContiguousCandidatesAndOwnedSourceContext(t *testing.T) {
document := &source.SourceDocument{ID: "private-source-id", Units: []source.SourceUnit{
{ID: 40, Kind: "narration", Text: "zero"},
{ID: 10, Kind: "speech", Text: "one", Metadata: map[string]any{"speaker": map[string]any{"name": "Mira"}}},
{ID: 70, Kind: "speech", Text: "two"},
{ID: 20, Kind: "narration", Text: "three"},
{ID: 90, Kind: "speech", Text: "four"},
}}
references := []source.SourceRef{
{SourceID: document.ID, StartUnitID: 90, EndUnitID: 90},
{SourceID: document.ID, StartUnitID: 10, EndUnitID: 20},
{SourceID: document.ID, StartUnitID: 10, EndUnitID: 20},
}
candidates := []Candidate{
{Label: "The Tavern", SourceRefs: append([]source.SourceRef(nil), references...)},
{Label: "The Tavern", SourceRefs: append([]source.SourceRef(nil), references...)},
{Label: "Broken", SourceRefs: []source.SourceRef{{SourceID: document.ID, StartUnitID: 20, EndUnitID: 10}}},
}
before := cloneCandidates(candidates)
preparation, err := Prepare(document, candidates, Limits{
ContextRadius: 1,
MaximumCandidates: len(candidates),
MaximumMaterialBytes: 10000,
})
if err != nil {
t.Fatal(err)
}
if preparation.Disposition() != Ready {
t.Fatalf("Disposition() = %v, want Ready", preparation.Disposition())
}
if !reflect.DeepEqual(candidates, before) {
t.Fatalf("Prepare() mutated candidates: %#v", candidates)
}
if got, want := preparation.CandidateMappings(), []CandidateMapping{
{CandidateID: 1, CandidatePosition: 0},
{CandidateID: 2, CandidatePosition: 1},
}; !reflect.DeepEqual(got, want) {
t.Fatalf("CandidateMappings() = %#v, want %#v", got, want)
}
materials := preparation.Materials()
if len(materials) != 2 {
t.Fatalf("materials = %#v, want candidates and transcript", materials)
}
if _, ok := materials[candidateInputName]; !ok {
t.Fatal("candidate material is missing")
}
if _, ok := materials[transcriptInputName]; !ok {
t.Fatal("transcript material is missing")
}
for name, material := range materials {
if material.Name != name || material.MediaType != "application/json" || material.OriginURI != "" || material.SizeBytes != int64(len(material.Content)) {
t.Fatalf("material %q metadata = %#v", name, material)
}
digest := sha256.Sum256(material.Content)
if want := "sha256:" + hex.EncodeToString(digest[:]); material.Digest != want {
t.Fatalf("material %q digest = %q, want %q", name, material.Digest, want)
}
}
candidateContent := append([]byte(nil), materials[candidateInputName].Content...)
var candidatePayload candidateInput
if err := json.Unmarshal(candidateContent, &candidatePayload); err != nil {
t.Fatal(err)
}
wantCandidates := []visibleCandidate{
{CandidateID: 1, Label: "The Tavern", SourceRefs: []sourceRange{{StartUnitID: 10, EndUnitID: 20}, {StartUnitID: 90, EndUnitID: 90}}},
{CandidateID: 2, Label: "The Tavern", SourceRefs: []sourceRange{{StartUnitID: 10, EndUnitID: 20}, {StartUnitID: 90, EndUnitID: 90}}},
}
if !reflect.DeepEqual(candidatePayload.Candidates, wantCandidates) {
t.Fatalf("candidate payload = %#v, want %#v", candidatePayload.Candidates, wantCandidates)
}
var candidateObjects struct {
Candidates []map[string]json.RawMessage `json:"candidates"`
}
if err := json.Unmarshal(candidateContent, &candidateObjects); err != nil {
t.Fatal(err)
}
for _, candidate := range candidateObjects.Candidates {
if len(candidate) != 3 || candidate["candidate_id"] == nil || candidate["label"] == nil || candidate["source_refs"] == nil {
t.Fatalf("model-facing candidate fields = %#v", candidate)
}
}
combined := string(materials[candidateInputName].Content) + string(materials[transcriptInputName].Content)
for _, forbidden := range []string{document.ID, "application_entity_id", "private-entity-id"} {
if strings.Contains(combined, forbidden) {
t.Fatalf("model material leaked %q: %s", forbidden, combined)
}
}
var transcript transcriptInput
if err := json.Unmarshal(materials[transcriptInputName].Content, &transcript); err != nil {
t.Fatal(err)
}
if len(transcript.Windows) != 1 || len(transcript.Windows[0].Units) != len(document.Units) {
t.Fatalf("windows = %#v, want one coalesced source window", transcript.Windows)
}
for index, wantID := range []int{40, 10, 70, 20, 90} {
if transcript.Windows[0].Units[index].ID != wantID {
t.Fatalf("unit %d id = %d, want %d", index, transcript.Windows[0].Units[index].ID, wantID)
}
}
if transcript.Windows[0].Units[0].Cited {
t.Fatal("radius-only unit marked cited")
}
for index := 1; index < len(transcript.Windows[0].Units); index++ {
if !transcript.Windows[0].Units[index].Cited {
t.Fatalf("evidence unit %d was not marked cited", index)
}
}
candidates[0].SourceRefs[0].StartUnitID = 40
document.Units[1].Metadata["speaker"].(map[string]any)["name"] = "changed"
if got := preparation.Materials()[candidateInputName].Content; !reflect.DeepEqual(got, candidateContent) {
t.Fatalf("candidate material changed through caller input: %s", got)
}
var retained transcriptInput
if err := json.Unmarshal(preparation.Materials()[transcriptInputName].Content, &retained); err != nil {
t.Fatal(err)
}
if got := retained.Windows[0].Units[1].Metadata["speaker"].(map[string]any)["name"]; got != "Mira" {
t.Fatalf("retained metadata = %v, want Mira", got)
}
returnedMappings := preparation.CandidateMappings()
returnedMappings[0].CandidatePosition = 99
returnedMaterials := preparation.Materials()
candidateMaterial := returnedMaterials[candidateInputName]
candidateMaterial.Content[0] = '['
returnedMaterials[candidateInputName] = candidateMaterial
delete(returnedMaterials, transcriptInputName)
if preparation.CandidateMappings()[0].CandidatePosition != 0 || !json.Valid(preparation.Materials()[candidateInputName].Content) || len(preparation.Materials()) != 2 {
t.Fatal("preparation accessors exposed retained data")
}
}
func TestPrepareFiltersUnsafeCandidatesAndCoalescesAdjacentWindows(t *testing.T) {
document := &source.SourceDocument{ID: "session", Units: []source.SourceUnit{
{ID: 9}, {ID: 3}, {ID: 8}, {ID: 1}, {ID: 7},
}}
candidates := []Candidate{
{Label: "One", SourceRefs: []source.SourceRef{{SourceID: document.ID, StartUnitID: 3, EndUnitID: 3}}},
{Label: "Two", SourceRefs: []source.SourceRef{{SourceID: document.ID, StartUnitID: 8, EndUnitID: 8}}},
{Label: "Missing", SourceRefs: []source.SourceRef{{SourceID: document.ID, StartUnitID: 99, EndUnitID: 99}}},
{Label: "Foreign", SourceRefs: []source.SourceRef{{SourceID: "other", StartUnitID: 1, EndUnitID: 1}}},
{Label: "No references"},
{Label: "Partly invalid", SourceRefs: []source.SourceRef{
{SourceID: document.ID, StartUnitID: 1, EndUnitID: 1},
{SourceID: document.ID, StartUnitID: 100, EndUnitID: 100},
}},
}
limits := Limits{ContextRadius: 0, MaximumCandidates: len(candidates), MaximumMaterialBytes: 10000}
preparation, err := Prepare(document, candidates, limits)
if err != nil || preparation.Disposition() != Ready {
t.Fatalf("Prepare() disposition = %v, error = %v", preparation.Disposition(), err)
}
if got, want := preparation.CandidateMappings(), []CandidateMapping{
{CandidateID: 1, CandidatePosition: 0},
{CandidateID: 2, CandidatePosition: 1},
}; !reflect.DeepEqual(got, want) {
t.Fatalf("CandidateMappings() = %#v, want %#v", got, want)
}
var transcript transcriptInput
if err := json.Unmarshal(preparation.Materials()[transcriptInputName].Content, &transcript); err != nil {
t.Fatal(err)
}
if len(transcript.Windows) != 1 || len(transcript.Windows[0].Units) != 2 || transcript.Windows[0].Units[0].ID != 3 || transcript.Windows[0].Units[1].ID != 8 {
t.Fatalf("windows = %#v, want adjacent source-order units coalesced", transcript.Windows)
}
oneCandidate, err := Prepare(document, candidates[:1], limits)
if err != nil {
t.Fatal(err)
}
if got, want := oneCandidate.CandidateMappings(), []CandidateMapping{{CandidateID: 1, CandidatePosition: 0}}; oneCandidate.Disposition() != InsufficientCandidates || !reflect.DeepEqual(got, want) || len(oneCandidate.Materials()) != 0 {
t.Fatalf("Prepare(one candidate) = disposition %v, mappings %#v, materials %#v", oneCandidate.Disposition(), got, oneCandidate.Materials())
}
nilPreparation, err := Prepare(nil, candidates, limits)
if err != nil {
t.Fatal(err)
}
if nilPreparation.Disposition() != InsufficientCandidates || len(nilPreparation.CandidateMappings()) != 0 || len(nilPreparation.Materials()) != 0 {
t.Fatalf("Prepare(nil) = disposition %v, mappings %#v, materials %#v", nilPreparation.Disposition(), nilPreparation.CandidateMappings(), nilPreparation.Materials())
}
}
func TestPrepareValidatesLimitsBeforeBuildingMaterials(t *testing.T) {
if err := DefaultLimits().Validate(); err != nil {
t.Fatalf("DefaultLimits().Validate() error = %v", err)
}
cycle := map[string]any{}
cycle["self"] = cycle
document := &source.SourceDocument{ID: "session", Units: []source.SourceUnit{
{ID: 1, Metadata: cycle}, {ID: 2},
}}
candidates := candidatesForEveryUnit(document)
tests := []struct {
name string
limits Limits
want string
}{
{name: "negative radius", limits: Limits{ContextRadius: -1, MaximumCandidates: 2, MaximumMaterialBytes: 100}, want: "radius"},
{name: "zero candidates", limits: Limits{ContextRadius: 0, MaximumCandidates: 0, MaximumMaterialBytes: 100}, want: "candidates"},
{name: "negative candidates", limits: Limits{ContextRadius: 0, MaximumCandidates: -1, MaximumMaterialBytes: 100}, want: "candidates"},
{name: "zero bytes", limits: Limits{ContextRadius: 0, MaximumCandidates: 2, MaximumMaterialBytes: 0}, want: "bytes"},
{name: "negative bytes", limits: Limits{ContextRadius: 0, MaximumCandidates: 2, MaximumMaterialBytes: -1}, want: "bytes"},
}
for _, test := range tests {
t.Run(test.name, func(t *testing.T) {
if _, err := Prepare(document, candidates, test.limits); err == nil || !strings.Contains(err.Error(), test.want) {
t.Fatalf("Prepare() error = %v, want %q validation", err, test.want)
}
})
}
}
func TestPrepareEnforcesCandidateLimitBeforeRenderingContext(t *testing.T) {
cycle := map[string]any{}
cycle["self"] = cycle
document := &source.SourceDocument{ID: "session", Units: []source.SourceUnit{
{ID: 1, Text: "one", Metadata: cycle},
{ID: 2, Text: "two"},
{ID: 3, Text: "three"},
}}
candidates := candidatesForEveryUnit(document)
limits := Limits{ContextRadius: 0, MaximumCandidates: 2, MaximumMaterialBytes: 10000}
exceeded, err := Prepare(document, candidates, limits)
if err != nil {
t.Fatalf("Prepare(over limit) error = %v; context should not be rendered", err)
}
if exceeded.Disposition() != LimitExceeded || len(exceeded.CandidateMappings()) != 3 || len(exceeded.Materials()) != 0 {
t.Fatalf("Prepare(over limit) = disposition %v, mappings %#v, materials %#v", exceeded.Disposition(), exceeded.CandidateMappings(), exceeded.Materials())
}
document.Units[0].Metadata = nil
exact, err := Prepare(document, candidates[:2], limits)
if err != nil || exact.Disposition() != Ready {
t.Fatalf("Prepare(at limit) = disposition %v, error %v", exact.Disposition(), err)
}
}
func TestPrepareAcceptsExactCombinedByteLimitAndSkipsOneOver(t *testing.T) {
document := &source.SourceDocument{ID: "session", Units: []source.SourceUnit{
{ID: 1, Text: "one"},
{ID: 2, Text: "two"},
}}
candidates := candidatesForEveryUnit(document)
baseLimits := Limits{ContextRadius: 0, MaximumCandidates: len(candidates), MaximumMaterialBytes: 10000}
base, err := Prepare(document, candidates, baseLimits)
if err != nil || base.Disposition() != Ready {
t.Fatalf("Prepare(base) = disposition %v, error %v", base.Disposition(), err)
}
materials := base.Materials()
totalBytes := len(materials[candidateInputName].Content) + len(materials[transcriptInputName].Content)
exactLimits := baseLimits
exactLimits.MaximumMaterialBytes = totalBytes
exact, err := Prepare(document, candidates, exactLimits)
if err != nil || exact.Disposition() != Ready {
t.Fatalf("Prepare(exact bytes) = disposition %v, error %v", exact.Disposition(), err)
}
oneOverLimits := exactLimits
oneOverLimits.MaximumMaterialBytes--
oneOver, err := Prepare(document, candidates, oneOverLimits)
if err != nil || oneOver.Disposition() != LimitExceeded || len(oneOver.Materials()) != 0 {
t.Fatalf("Prepare(one over) = disposition %v, materials %#v, error %v", oneOver.Disposition(), oneOver.Materials(), err)
}
}
func TestPrepareSerializationIsDeterministic(t *testing.T) {
document := &source.SourceDocument{ID: "session", Units: []source.SourceUnit{
{ID: 5, Text: "five", Metadata: map[string]any{"z": 1, "a": []any{"first", "second"}}},
{ID: 2, Text: "two", Metadata: map[string]any{"nested": map[string]any{"b": true, "a": false}}},
}}
candidates := candidatesForEveryUnit(document)
limits := Limits{ContextRadius: 0, MaximumCandidates: len(candidates), MaximumMaterialBytes: 10000}
first, err := Prepare(document, candidates, limits)
if err != nil {
t.Fatal(err)
}
second, err := Prepare(document, cloneCandidates(candidates), limits)
if err != nil {
t.Fatal(err)
}
for _, name := range []string{candidateInputName, transcriptInputName} {
firstMaterial := first.Materials()[name]
secondMaterial := second.Materials()[name]
if !reflect.DeepEqual(firstMaterial, secondMaterial) {
t.Fatalf("material %q is not deterministic:\n%#v\n%#v", name, firstMaterial, secondMaterial)
}
}
}
func candidatesForEveryUnit(document *source.SourceDocument) []Candidate {
candidates := make([]Candidate, len(document.Units))
for index, unit := range document.Units {
candidates[index] = Candidate{
Label: "candidate",
SourceRefs: []source.SourceRef{{
SourceID: document.ID,
StartUnitID: unit.ID,
EndUnitID: unit.ID,
}},
}
}
return candidates
}
func cloneCandidates(candidates []Candidate) []Candidate {
cloned := append([]Candidate(nil), candidates...)
for index := range cloned {
cloned[index].SourceRefs = append([]source.SourceRef(nil), candidates[index].SourceRefs...)
}
return cloned
}