Files
CHORUS/pkg/slurp/temporal/graph_test.go
anthonyrawlins 543ab216f9 Complete BZZZ functionality port to CHORUS
🎭 CHORUS now contains full BZZZ functionality adapted for containers

Core systems ported:
- P2P networking (libp2p with DHT and PubSub)
- Task coordination (COOEE protocol)
- HMMM collaborative reasoning
- SHHH encryption and security
- SLURP admin election system
- UCXL content addressing
- UCXI server integration
- Hypercore logging system
- Health monitoring and graceful shutdown
- License validation with KACHING

Container adaptations:
- Environment variable configuration (no YAML files)
- Container-optimized logging to stdout/stderr
- Auto-generated agent IDs for container deployments
- Docker-first architecture

All proven BZZZ P2P protocols, AI integration, and collaboration
features are now available in containerized form.

Next: Build and test container deployment.

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>
2025-09-02 20:02:37 +10:00

768 lines
23 KiB
Go

package temporal
import (
"context"
"testing"
"time"
"chorus.services/bzzz/pkg/ucxl"
slurpContext "chorus.services/bzzz/pkg/slurp/context"
"chorus.services/bzzz/pkg/slurp/storage"
)
// Mock storage for testing
type mockStorage struct {
data map[string]interface{}
}
func newMockStorage() *mockStorage {
return &mockStorage{
data: make(map[string]interface{}),
}
}
func (ms *mockStorage) StoreContext(ctx context.Context, node *slurpContext.ContextNode, roles []string) error {
ms.data[node.UCXLAddress.String()] = node
return nil
}
func (ms *mockStorage) RetrieveContext(ctx context.Context, address ucxl.Address, role string) (*slurpContext.ContextNode, error) {
if data, exists := ms.data[address.String()]; exists {
return data.(*slurpContext.ContextNode), nil
}
return nil, storage.ErrNotFound
}
func (ms *mockStorage) UpdateContext(ctx context.Context, node *slurpContext.ContextNode, roles []string) error {
ms.data[node.UCXLAddress.String()] = node
return nil
}
func (ms *mockStorage) DeleteContext(ctx context.Context, address ucxl.Address) error {
delete(ms.data, address.String())
return nil
}
func (ms *mockStorage) ExistsContext(ctx context.Context, address ucxl.Address) (bool, error) {
_, exists := ms.data[address.String()]
return exists, nil
}
func (ms *mockStorage) ListContexts(ctx context.Context, criteria *storage.ListCriteria) ([]*slurpContext.ContextNode, error) {
results := make([]*slurpContext.ContextNode, 0)
for _, data := range ms.data {
if node, ok := data.(*slurpContext.ContextNode); ok {
results = append(results, node)
}
}
return results, nil
}
func (ms *mockStorage) SearchContexts(ctx context.Context, query *storage.SearchQuery) (*storage.SearchResults, error) {
return &storage.SearchResults{}, nil
}
func (ms *mockStorage) BatchStore(ctx context.Context, batch *storage.BatchStoreRequest) (*storage.BatchStoreResult, error) {
return &storage.BatchStoreResult{}, nil
}
func (ms *mockStorage) BatchRetrieve(ctx context.Context, batch *storage.BatchRetrieveRequest) (*storage.BatchRetrieveResult, error) {
return &storage.BatchRetrieveResult{}, nil
}
func (ms *mockStorage) GetStorageStats(ctx context.Context) (*storage.StorageStatistics, error) {
return &storage.StorageStatistics{}, nil
}
func (ms *mockStorage) Sync(ctx context.Context) error {
return nil
}
func (ms *mockStorage) Backup(ctx context.Context, destination string) error {
return nil
}
func (ms *mockStorage) Restore(ctx context.Context, source string) error {
return nil
}
// Test helpers
func createTestAddress(path string) ucxl.Address {
addr, _ := ucxl.ParseAddress(fmt.Sprintf("ucxl://test/%s", path))
return *addr
}
func createTestContext(path string, technologies []string) *slurpContext.ContextNode {
return &slurpContext.ContextNode{
Path: path,
UCXLAddress: createTestAddress(path),
Summary: fmt.Sprintf("Test context for %s", path),
Purpose: fmt.Sprintf("Test purpose for %s", path),
Technologies: technologies,
Tags: []string{"test"},
Insights: []string{"test insight"},
GeneratedAt: time.Now(),
RAGConfidence: 0.8,
}
}
func createTestDecision(id, maker, rationale string, scope ImpactScope) *DecisionMetadata {
return &DecisionMetadata{
ID: id,
Maker: maker,
Rationale: rationale,
Scope: scope,
ConfidenceLevel: 0.8,
ExternalRefs: []string{},
CreatedAt: time.Now(),
ImplementationStatus: "complete",
Metadata: make(map[string]interface{}),
}
}
// Core temporal graph tests
func TestTemporalGraph_CreateInitialContext(t *testing.T) {
storage := newMockStorage()
graph := NewTemporalGraph(storage)
ctx := context.Background()
address := createTestAddress("test/component")
contextData := createTestContext("test/component", []string{"go", "test"})
node, err := graph.CreateInitialContext(ctx, address, contextData, "test_creator")
if err != nil {
t.Fatalf("Failed to create initial context: %v", err)
}
if node == nil {
t.Fatal("Expected node to be created")
}
if node.Version != 1 {
t.Errorf("Expected version 1, got %d", node.Version)
}
if node.ChangeReason != ReasonInitialCreation {
t.Errorf("Expected initial creation reason, got %s", node.ChangeReason)
}
if node.ParentNode != nil {
t.Error("Expected no parent node for initial context")
}
}
func TestTemporalGraph_EvolveContext(t *testing.T) {
storage := newMockStorage()
graph := NewTemporalGraph(storage)
ctx := context.Background()
address := createTestAddress("test/component")
initialContext := createTestContext("test/component", []string{"go", "test"})
// Create initial context
_, err := graph.CreateInitialContext(ctx, address, initialContext, "test_creator")
if err != nil {
t.Fatalf("Failed to create initial context: %v", err)
}
// Evolve context
updatedContext := createTestContext("test/component", []string{"go", "test", "updated"})
decision := createTestDecision("dec-001", "test_maker", "Adding new technology", ImpactModule)
evolvedNode, err := graph.EvolveContext(ctx, address, updatedContext, ReasonCodeChange, decision)
if err != nil {
t.Fatalf("Failed to evolve context: %v", err)
}
if evolvedNode.Version != 2 {
t.Errorf("Expected version 2, got %d", evolvedNode.Version)
}
if evolvedNode.ChangeReason != ReasonCodeChange {
t.Errorf("Expected code change reason, got %s", evolvedNode.ChangeReason)
}
if evolvedNode.ParentNode == nil {
t.Error("Expected parent node reference")
}
}
func TestTemporalGraph_GetLatestVersion(t *testing.T) {
storage := newMockStorage()
graph := NewTemporalGraph(storage)
ctx := context.Background()
address := createTestAddress("test/component")
initialContext := createTestContext("test/component", []string{"go"})
// Create initial version
_, err := graph.CreateInitialContext(ctx, address, initialContext, "test_creator")
if err != nil {
t.Fatalf("Failed to create initial context: %v", err)
}
// Evolve multiple times
for i := 2; i <= 5; i++ {
updatedContext := createTestContext("test/component", []string{"go", fmt.Sprintf("tech%d", i)})
decision := createTestDecision(fmt.Sprintf("dec-%03d", i), "test_maker", "Update", ImpactLocal)
_, err := graph.EvolveContext(ctx, address, updatedContext, ReasonCodeChange, decision)
if err != nil {
t.Fatalf("Failed to evolve context to version %d: %v", i, err)
}
}
// Get latest version
latest, err := graph.GetLatestVersion(ctx, address)
if err != nil {
t.Fatalf("Failed to get latest version: %v", err)
}
if latest.Version != 5 {
t.Errorf("Expected latest version 5, got %d", latest.Version)
}
}
func TestTemporalGraph_GetEvolutionHistory(t *testing.T) {
storage := newMockStorage()
graph := NewTemporalGraph(storage)
ctx := context.Background()
address := createTestAddress("test/component")
initialContext := createTestContext("test/component", []string{"go"})
// Create initial version
_, err := graph.CreateInitialContext(ctx, address, initialContext, "test_creator")
if err != nil {
t.Fatalf("Failed to create initial context: %v", err)
}
// Evolve multiple times
for i := 2; i <= 3; i++ {
updatedContext := createTestContext("test/component", []string{"go", fmt.Sprintf("tech%d", i)})
decision := createTestDecision(fmt.Sprintf("dec-%03d", i), "test_maker", "Update", ImpactLocal)
_, err := graph.EvolveContext(ctx, address, updatedContext, ReasonCodeChange, decision)
if err != nil {
t.Fatalf("Failed to evolve context to version %d: %v", i, err)
}
}
// Get evolution history
history, err := graph.GetEvolutionHistory(ctx, address)
if err != nil {
t.Fatalf("Failed to get evolution history: %v", err)
}
if len(history) != 3 {
t.Errorf("Expected 3 versions in history, got %d", len(history))
}
// Verify ordering
for i, node := range history {
expectedVersion := i + 1
if node.Version != expectedVersion {
t.Errorf("Expected version %d at index %d, got %d", expectedVersion, i, node.Version)
}
}
}
func TestTemporalGraph_InfluenceRelationships(t *testing.T) {
storage := newMockStorage()
graph := NewTemporalGraph(storage)
ctx := context.Background()
// Create two contexts
addr1 := createTestAddress("test/component1")
addr2 := createTestAddress("test/component2")
context1 := createTestContext("test/component1", []string{"go"})
context2 := createTestContext("test/component2", []string{"go"})
_, err := graph.CreateInitialContext(ctx, addr1, context1, "test_creator")
if err != nil {
t.Fatalf("Failed to create context 1: %v", err)
}
_, err = graph.CreateInitialContext(ctx, addr2, context2, "test_creator")
if err != nil {
t.Fatalf("Failed to create context 2: %v", err)
}
// Add influence relationship
err = graph.AddInfluenceRelationship(ctx, addr1, addr2)
if err != nil {
t.Fatalf("Failed to add influence relationship: %v", err)
}
// Get influence relationships
influences, influencedBy, err := graph.GetInfluenceRelationships(ctx, addr1)
if err != nil {
t.Fatalf("Failed to get influence relationships: %v", err)
}
if len(influences) != 1 {
t.Errorf("Expected 1 influence, got %d", len(influences))
}
if influences[0].String() != addr2.String() {
t.Errorf("Expected influence to addr2, got %s", influences[0].String())
}
if len(influencedBy) != 0 {
t.Errorf("Expected 0 influenced by, got %d", len(influencedBy))
}
// Check reverse relationship
influences2, influencedBy2, err := graph.GetInfluenceRelationships(ctx, addr2)
if err != nil {
t.Fatalf("Failed to get influence relationships for addr2: %v", err)
}
if len(influences2) != 0 {
t.Errorf("Expected 0 influences for addr2, got %d", len(influences2))
}
if len(influencedBy2) != 1 {
t.Errorf("Expected 1 influenced by for addr2, got %d", len(influencedBy2))
}
}
func TestTemporalGraph_FindRelatedDecisions(t *testing.T) {
storage := newMockStorage()
graph := NewTemporalGraph(storage)
ctx := context.Background()
// Create a network of contexts
addresses := make([]ucxl.Address, 5)
for i := 0; i < 5; i++ {
addresses[i] = createTestAddress(fmt.Sprintf("test/component%d", i))
context := createTestContext(fmt.Sprintf("test/component%d", i), []string{"go"})
_, err := graph.CreateInitialContext(ctx, addresses[i], context, "test_creator")
if err != nil {
t.Fatalf("Failed to create context %d: %v", i, err)
}
}
// Create influence chain: 0 -> 1 -> 2 -> 3 -> 4
for i := 0; i < 4; i++ {
err := graph.AddInfluenceRelationship(ctx, addresses[i], addresses[i+1])
if err != nil {
t.Fatalf("Failed to add influence relationship %d->%d: %v", i, i+1, err)
}
}
// Find related decisions within 3 hops from address 0
relatedPaths, err := graph.FindRelatedDecisions(ctx, addresses[0], 3)
if err != nil {
t.Fatalf("Failed to find related decisions: %v", err)
}
// Should find addresses 1, 2, 3 (within 3 hops)
if len(relatedPaths) < 3 {
t.Errorf("Expected at least 3 related decisions, got %d", len(relatedPaths))
}
// Verify hop distances
foundAddresses := make(map[string]int)
for _, path := range relatedPaths {
foundAddresses[path.To.String()] = path.TotalHops
}
for i := 1; i <= 3; i++ {
expectedAddr := addresses[i].String()
if hops, found := foundAddresses[expectedAddr]; found {
if hops != i {
t.Errorf("Expected %d hops to address %d, got %d", i, i, hops)
}
} else {
t.Errorf("Expected to find address %d in related decisions", i)
}
}
}
func TestTemporalGraph_FindDecisionPath(t *testing.T) {
storage := newMockStorage()
graph := NewTemporalGraph(storage)
ctx := context.Background()
// Create contexts
addr1 := createTestAddress("test/start")
addr2 := createTestAddress("test/middle")
addr3 := createTestAddress("test/end")
contexts := []*slurpContext.ContextNode{
createTestContext("test/start", []string{"go"}),
createTestContext("test/middle", []string{"go"}),
createTestContext("test/end", []string{"go"}),
}
addresses := []ucxl.Address{addr1, addr2, addr3}
for i, context := range contexts {
_, err := graph.CreateInitialContext(ctx, addresses[i], context, "test_creator")
if err != nil {
t.Fatalf("Failed to create context %d: %v", i, err)
}
}
// Create path: start -> middle -> end
err := graph.AddInfluenceRelationship(ctx, addr1, addr2)
if err != nil {
t.Fatalf("Failed to add relationship start->middle: %v", err)
}
err = graph.AddInfluenceRelationship(ctx, addr2, addr3)
if err != nil {
t.Fatalf("Failed to add relationship middle->end: %v", err)
}
// Find path from start to end
path, err := graph.FindDecisionPath(ctx, addr1, addr3)
if err != nil {
t.Fatalf("Failed to find decision path: %v", err)
}
if len(path) != 2 {
t.Errorf("Expected path length 2, got %d", len(path))
}
// Verify path steps
if path[0].Address.String() != addr1.String() {
t.Errorf("Expected first step to be start address, got %s", path[0].Address.String())
}
if path[1].Address.String() != addr2.String() {
t.Errorf("Expected second step to be middle address, got %s", path[1].Address.String())
}
}
func TestTemporalGraph_ValidateIntegrity(t *testing.T) {
storage := newMockStorage()
graph := NewTemporalGraph(storage)
ctx := context.Background()
// Create valid contexts with proper relationships
addr1 := createTestAddress("test/component1")
addr2 := createTestAddress("test/component2")
context1 := createTestContext("test/component1", []string{"go"})
context2 := createTestContext("test/component2", []string{"go"})
_, err := graph.CreateInitialContext(ctx, addr1, context1, "test_creator")
if err != nil {
t.Fatalf("Failed to create context 1: %v", err)
}
_, err = graph.CreateInitialContext(ctx, addr2, context2, "test_creator")
if err != nil {
t.Fatalf("Failed to create context 2: %v", err)
}
err = graph.AddInfluenceRelationship(ctx, addr1, addr2)
if err != nil {
t.Fatalf("Failed to add influence relationship: %v", err)
}
// Validate integrity - should pass
err = graph.ValidateTemporalIntegrity(ctx)
if err != nil {
t.Errorf("Expected integrity validation to pass, got error: %v", err)
}
}
func TestTemporalGraph_CompactHistory(t *testing.T) {
storage := newMockStorage()
graph := NewTemporalGraph(storage)
ctx := context.Background()
address := createTestAddress("test/component")
initialContext := createTestContext("test/component", []string{"go"})
// Create initial version (old)
oldTime := time.Now().Add(-60 * 24 * time.Hour) // 60 days ago
_, err := graph.CreateInitialContext(ctx, address, initialContext, "test_creator")
if err != nil {
t.Fatalf("Failed to create initial context: %v", err)
}
// Create several more versions
for i := 2; i <= 10; i++ {
updatedContext := createTestContext("test/component", []string{"go", fmt.Sprintf("tech%d", i)})
var reason ChangeReason
if i%3 == 0 {
reason = ReasonArchitectureChange // Major change - should be kept
} else {
reason = ReasonCodeChange // Minor change - may be compacted
}
decision := createTestDecision(fmt.Sprintf("dec-%03d", i), "test_maker", "Update", ImpactLocal)
_, err := graph.EvolveContext(ctx, address, updatedContext, reason, decision)
if err != nil {
t.Fatalf("Failed to evolve context to version %d: %v", i, err)
}
}
// Get history before compaction
historyBefore, err := graph.GetEvolutionHistory(ctx, address)
if err != nil {
t.Fatalf("Failed to get history before compaction: %v", err)
}
// Compact history (keep recent changes within 30 days)
cutoffTime := time.Now().Add(-30 * 24 * time.Hour)
err = graph.CompactHistory(ctx, cutoffTime)
if err != nil {
t.Fatalf("Failed to compact history: %v", err)
}
// Get history after compaction
historyAfter, err := graph.GetEvolutionHistory(ctx, address)
if err != nil {
t.Fatalf("Failed to get history after compaction: %v", err)
}
// History should be smaller but still contain recent changes
if len(historyAfter) >= len(historyBefore) {
t.Errorf("Expected history to be compacted, before: %d, after: %d", len(historyBefore), len(historyAfter))
}
// Latest version should still exist
latest, err := graph.GetLatestVersion(ctx, address)
if err != nil {
t.Fatalf("Failed to get latest version after compaction: %v", err)
}
if latest.Version != 10 {
t.Errorf("Expected latest version 10 after compaction, got %d", latest.Version)
}
}
// Performance tests
func BenchmarkTemporalGraph_CreateInitialContext(b *testing.B) {
storage := newMockStorage()
graph := NewTemporalGraph(storage)
ctx := context.Background()
b.ResetTimer()
for i := 0; i < b.N; i++ {
address := createTestAddress(fmt.Sprintf("test/component%d", i))
contextData := createTestContext(fmt.Sprintf("test/component%d", i), []string{"go", "test"})
_, err := graph.CreateInitialContext(ctx, address, contextData, "test_creator")
if err != nil {
b.Fatalf("Failed to create initial context: %v", err)
}
}
}
func BenchmarkTemporalGraph_EvolveContext(b *testing.B) {
storage := newMockStorage()
graph := NewTemporalGraph(storage)
ctx := context.Background()
// Setup: create initial context
address := createTestAddress("test/component")
initialContext := createTestContext("test/component", []string{"go"})
_, err := graph.CreateInitialContext(ctx, address, initialContext, "test_creator")
if err != nil {
b.Fatalf("Failed to create initial context: %v", err)
}
b.ResetTimer()
for i := 0; i < b.N; i++ {
updatedContext := createTestContext("test/component", []string{"go", fmt.Sprintf("tech%d", i)})
decision := createTestDecision(fmt.Sprintf("dec-%03d", i), "test_maker", "Update", ImpactLocal)
_, err := graph.EvolveContext(ctx, address, updatedContext, ReasonCodeChange, decision)
if err != nil {
b.Fatalf("Failed to evolve context: %v", err)
}
}
}
func BenchmarkTemporalGraph_FindRelatedDecisions(b *testing.B) {
storage := newMockStorage()
graph := NewTemporalGraph(storage)
ctx := context.Background()
// Setup: create network of 100 contexts
addresses := make([]ucxl.Address, 100)
for i := 0; i < 100; i++ {
addresses[i] = createTestAddress(fmt.Sprintf("test/component%d", i))
context := createTestContext(fmt.Sprintf("test/component%d", i), []string{"go"})
_, err := graph.CreateInitialContext(ctx, addresses[i], context, "test_creator")
if err != nil {
b.Fatalf("Failed to create context %d: %v", i, err)
}
// Add some influence relationships
if i > 0 {
err = graph.AddInfluenceRelationship(ctx, addresses[i-1], addresses[i])
if err != nil {
b.Fatalf("Failed to add influence relationship: %v", err)
}
}
// Add some random relationships
if i > 10 && i%10 == 0 {
err = graph.AddInfluenceRelationship(ctx, addresses[i-10], addresses[i])
if err != nil {
b.Fatalf("Failed to add random influence relationship: %v", err)
}
}
}
b.ResetTimer()
for i := 0; i < b.N; i++ {
startIdx := i % 50 // Use first 50 as starting points
_, err := graph.FindRelatedDecisions(ctx, addresses[startIdx], 5)
if err != nil {
b.Fatalf("Failed to find related decisions: %v", err)
}
}
}
// Integration tests
func TestTemporalGraphIntegration_ComplexScenario(t *testing.T) {
storage := newMockStorage()
graph := NewTemporalGraph(storage)
ctx := context.Background()
// Scenario: Microservices architecture evolution
services := []string{"user-service", "order-service", "payment-service", "notification-service"}
addresses := make([]ucxl.Address, len(services))
// Create initial services
for i, service := range services {
addresses[i] = createTestAddress(fmt.Sprintf("microservices/%s", service))
context := createTestContext(fmt.Sprintf("microservices/%s", service), []string{"go", "microservice"})
_, err := graph.CreateInitialContext(ctx, addresses[i], context, "architect")
if err != nil {
t.Fatalf("Failed to create %s: %v", service, err)
}
}
// Establish service dependencies
// user-service -> order-service -> payment-service
// order-service -> notification-service
dependencies := [][]int{
{0, 1}, // user -> order
{1, 2}, // order -> payment
{1, 3}, // order -> notification
}
for _, dep := range dependencies {
err := graph.AddInfluenceRelationship(ctx, addresses[dep[0]], addresses[dep[1]])
if err != nil {
t.Fatalf("Failed to add dependency: %v", err)
}
}
// Evolve payment service (add security features)
paymentContext := createTestContext("microservices/payment-service", []string{"go", "microservice", "security", "encryption"})
decision := createTestDecision("sec-001", "security-team", "Add encryption for PCI compliance", ImpactProject)
_, err := graph.EvolveContext(ctx, addresses[2], paymentContext, ReasonSecurityReview, decision)
if err != nil {
t.Fatalf("Failed to evolve payment service: %v", err)
}
// Evolve order service (performance improvements)
orderContext := createTestContext("microservices/order-service", []string{"go", "microservice", "caching", "performance"})
decision2 := createTestDecision("perf-001", "performance-team", "Add Redis caching", ImpactModule)
_, err = graph.EvolveContext(ctx, addresses[1], orderContext, ReasonPerformanceInsight, decision2)
if err != nil {
t.Fatalf("Failed to evolve order service: %v", err)
}
// Test: Find impact of payment service changes
relatedPaths, err := graph.FindRelatedDecisions(ctx, addresses[2], 3)
if err != nil {
t.Fatalf("Failed to find related decisions: %v", err)
}
// Should find order-service as it depends on payment-service
foundOrderService := false
for _, path := range relatedPaths {
if path.To.String() == addresses[1].String() {
foundOrderService = true
break
}
}
if !foundOrderService {
t.Error("Expected to find order-service in related decisions")
}
// Test: Get evolution history for order service
history, err := graph.GetEvolutionHistory(ctx, addresses[1])
if err != nil {
t.Fatalf("Failed to get order service history: %v", err)
}
if len(history) != 2 {
t.Errorf("Expected 2 versions in order service history, got %d", len(history))
}
// Test: Validate overall integrity
err = graph.ValidateTemporalIntegrity(ctx)
if err != nil {
t.Errorf("Integrity validation failed: %v", err)
}
}
// Error handling tests
func TestTemporalGraph_ErrorHandling(t *testing.T) {
storage := newMockStorage()
graph := NewTemporalGraph(storage)
ctx := context.Background()
// Test: Get latest version for non-existent address
nonExistentAddr := createTestAddress("non/existent")
_, err := graph.GetLatestVersion(ctx, nonExistentAddr)
if err == nil {
t.Error("Expected error when getting latest version for non-existent address")
}
// Test: Evolve non-existent context
context := createTestContext("non/existent", []string{"go"})
decision := createTestDecision("dec-001", "test", "Test", ImpactLocal)
_, err = graph.EvolveContext(ctx, nonExistentAddr, context, ReasonCodeChange, decision)
if err == nil {
t.Error("Expected error when evolving non-existent context")
}
// Test: Add influence relationship with non-existent addresses
addr1 := createTestAddress("test/addr1")
addr2 := createTestAddress("test/addr2")
err = graph.AddInfluenceRelationship(ctx, addr1, addr2)
if err == nil {
t.Error("Expected error when adding influence relationship with non-existent addresses")
}
// Test: Find decision path between non-existent addresses
_, err = graph.FindDecisionPath(ctx, addr1, addr2)
if err == nil {
t.Error("Expected error when finding path between non-existent addresses")
}
}