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sessions_test.go
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sessions_test.go
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package main
import (
"fmt"
"io"
"log"
"math/rand"
"sync"
"testing"
"time"
ai "github.com/sashabaranov/go-openai"
vip "github.com/spf13/viper"
"github.com/stretchr/testify/assert"
)
func TestChatSession(t *testing.T) {
vip.Set("session", 1*time.Hour)
vip.Set("history", 10)
//log.SetOutput(io.Discard)
ctx := &ChatContext{
Personality: &Personality{
Prompt: "You are a helpful assistant.",
},
}
t.Run("Test interactions and message history", func(t *testing.T) {
session1 := sessions.Get("session1")
session1.Message(ctx, ai.ChatMessageRoleUser, "Hello!")
session1.Message(ctx, ai.ChatMessageRoleAssistant, "Hi there!")
assert.Len(t, session1.History, 3)
assert.Equal(t, session1.History[1].Content, "Hello!")
assert.Equal(t, session1.History[2].Content, "Hi there!")
})
}
func TestExpiry(t *testing.T) {
//log.SetOutput(io.Discard)
ctx := &ChatContext{
Personality: &Personality{
Prompt: "You are a helpful assistant.",
},
}
t.Run("Test session expiration and trimming", func(t *testing.T) {
vip.Set("session", 500*time.Millisecond)
vip.Set("history", 20)
session2 := sessions.Get("session2")
session2.Message(ctx, ai.ChatMessageRoleUser, "How are you?")
session2.Message(ctx, ai.ChatMessageRoleAssistant, "I'm doing great, thanks!")
session2.Message(ctx, ai.ChatMessageRoleUser, "What's your name?")
time.Sleep(2 * time.Second)
session3 := sessions.Get("session2")
assert.NotEqual(t, session2, session3, "Expired session should not be reused")
assert.Len(t, session3.History, 0, "New session history should be empty")
session3.Message(ctx, ai.ChatMessageRoleUser, "Hello again!")
session3.Message(ctx, ai.ChatMessageRoleAssistant, "Hi! Nice to see you again!")
assert.Len(t, session3.History, 3, "History should include the latest 2 messages plus the initial system message")
assert.Equal(t, session3.History[1].Content, "Hello again!")
assert.Equal(t, session3.History[2].Content, "Hi! Nice to see you again!")
})
}
func TestSessionConcurrency(t *testing.T) {
vip.Set("session", 1*time.Hour)
vip.Set("history", 10)
log.SetOutput(io.Discard)
t.Run("Test session concurrency", func(t *testing.T) {
vip.Set("session", 1*time.Hour)
vip.Set("history", 500*2000)
ctx := &ChatContext{
Personality: &Personality{
Prompt: "You are a helpful assistant.",
},
}
const concurrentUsers = 1000
const messagesPerUser = 500
startTime := time.Now()
var wg sync.WaitGroup
wg.Add(concurrentUsers)
for i := 0; i < concurrentUsers; i++ {
go func(userIndex int) {
defer wg.Done()
sessionID := fmt.Sprintf("usersession%d", userIndex)
session := sessions.Get(sessionID)
for j := 0; j < messagesPerUser; j++ {
session.Message(ctx, ai.ChatMessageRoleUser, fmt.Sprintf("User %d message %d", userIndex, j))
session.Message(ctx, ai.ChatMessageRoleAssistant, fmt.Sprintf("Assistant response to user %d message %d", userIndex, j))
}
}(i)
}
wg.Wait()
for i := 0; i < concurrentUsers; i++ {
sessionID := fmt.Sprintf("usersession%d", i)
session := sessions.Get(sessionID)
assert.Len(t, session.History, messagesPerUser*2+1, "Each session should have the correct number of messages")
}
elapsedTime := time.Since(startTime)
totalMessages := concurrentUsers * messagesPerUser * 2
messagesPerSecond := float64(totalMessages) / elapsedTime.Seconds()
t.Logf("Processed %d messages in %v, which is %.2f messages per second\n", totalMessages, elapsedTime, messagesPerSecond)
})
}
func TestSingleSessionConcurrency(t *testing.T) {
log.SetOutput(io.Discard)
t.Run("Test single session concurrency", func(t *testing.T) {
vip.Set("session", 1*time.Hour)
vip.Set("history", 500*200)
ctx := &ChatContext{
Personality: &Personality{
Prompt: "You are a helpful assistant.",
},
}
const concurrentUsers = 500
const messagesPerUser = 100
startTime := time.Now()
session := sessions.Get("concurrentSession")
var wg sync.WaitGroup
wg.Add(concurrentUsers)
for i := 0; i < concurrentUsers; i++ {
go func(userIndex int) {
defer wg.Done()
for j := 0; j < messagesPerUser; j++ {
session.Message(ctx, ai.ChatMessageRoleUser, fmt.Sprintf("User %d message %d", userIndex, j))
session.Message(ctx, ai.ChatMessageRoleAssistant, fmt.Sprintf("Assistant response to user %d message %d", userIndex, j))
}
}(i)
}
wg.Wait()
elapsedTime := time.Since(startTime)
totalMessages := concurrentUsers * messagesPerUser * 2
messagesPerSecond := float64(totalMessages) / elapsedTime.Seconds()
assert.Len(t, session.History, totalMessages+1, "The session should have the correct number of messages")
t.Logf("Processed %d messages in %v, which is %.2f messages per second\n", totalMessages, elapsedTime, messagesPerSecond)
})
}
func countActiveSessions() int {
activeSessions := 0
sessions.mu.Lock()
defer sessions.mu.Unlock()
for _, session := range sessions.sessionMap {
if time.Since(session.Last) <= session.Config.SessionTimeout {
activeSessions++
}
}
return activeSessions
}
func TestSessionReapStress(t *testing.T) {
// Set up test configurations
numSessions := 2000
timeout := 100 * time.Millisecond
log.SetOutput(io.Discard)
sessions.sessionMap = make(map[string]*ChatSession)
vip.Set("session", timeout)
vip.Set("history", 10)
vip.Set("chunkdelay", 200*time.Millisecond)
vip.Set("chunkmax", 5)
// Create and store sessions
for i := 0; i < numSessions; i++ {
sessionID := fmt.Sprintf("session-%d", i)
sessions.Get(sessionID)
}
// Verify that all sessions are created
if len(sessions.sessionMap) != numSessions {
t.Fatalf("Expected %d sessions, got %d", numSessions, len(sessions.sessionMap))
}
// Simulate activity for some sessions
testPersonality := Personality{
Prompt: "Test prompt",
}
time.Sleep(50 * time.Millisecond)
// half are half aged
for i := 0; i < numSessions/2; i++ {
sessionID := fmt.Sprintf("session-%d", i)
session := sessions.Get(sessionID)
session.Message(&ChatContext{Personality: &testPersonality}, ai.ChatMessageRoleUser, fmt.Sprintf("message-%d", 0))
session.Message(&ChatContext{Personality: &testPersonality}, ai.ChatMessageRoleUser, fmt.Sprintf("message-%d", 1))
}
// wait for the unfreshened half to time out
time.Sleep(55 * time.Millisecond)
activeSessions := countActiveSessions()
expectedActiveSessions := numSessions / 2
if activeSessions != expectedActiveSessions {
t.Fatalf("Expected %d active sessions, got %d", expectedActiveSessions, activeSessions)
}
}
func TestSessionWindow(t *testing.T) {
testCases := []struct {
name string
history []ai.ChatCompletionMessage
maxHistory int
expected []ai.ChatCompletionMessage
}{
{
name: "Simple_case",
history: []ai.ChatCompletionMessage{
{Role: ai.ChatMessageRoleUser, Content: "Prompt"},
{Role: ai.ChatMessageRoleUser, Content: "Message 1"},
{Role: ai.ChatMessageRoleUser, Content: "Message 2"},
{Role: ai.ChatMessageRoleUser, Content: "Message 3"},
{Role: ai.ChatMessageRoleUser, Content: "Message 4"},
},
maxHistory: 2,
expected: []ai.ChatCompletionMessage{
{Role: ai.ChatMessageRoleUser, Content: "Prompt"},
{Role: ai.ChatMessageRoleUser, Content: "Message 3"},
{Role: ai.ChatMessageRoleUser, Content: "Message 4"},
},
},
// Add more test cases if needed
}
for _, tc := range testCases {
t.Run(tc.name, func(t *testing.T) {
session := ChatSession{
History: tc.history,
Config: SessionConfig{MaxHistory: tc.maxHistory},
}
session.trim()
if len(session.History) != len(tc.expected) {
t.Errorf("Expected history length to be %d, but got %d", len(tc.expected), len(session.History))
}
for i, msg := range session.History {
if msg.Role != tc.expected[i].Role || msg.Content != tc.expected[i].Content {
t.Errorf("Expected message at index %d to be %+v, but got %+v", i, tc.expected[i], msg)
}
}
})
}
}
func BenchmarkTrim(b *testing.B) {
testCases := []int{100, 1000, 10000, 20000}
for _, msgCount := range testCases {
messages := make([]ai.ChatCompletionMessage, msgCount)
for i := 0; i < msgCount; i++ {
messages[i] = ai.ChatCompletionMessage{Role: ai.ChatMessageRoleUser, Content: fmt.Sprintf("Message %d", i)}
}
b.Run(fmt.Sprintf("MsgCount_%d", msgCount), func(b *testing.B) {
session := ChatSession{
History: messages,
Config: SessionConfig{MaxHistory: msgCount / 2},
}
b.ResetTimer()
for i := 0; i < b.N; i++ {
session.trim()
}
})
}
}
func BenchmarkSessionStress(b *testing.B) {
vip.Set("session", 1*time.Second) // Short session duration to trigger more expirations
vip.Set("history", 5) // Shorter history length to trigger more trimming
ctx := &ChatContext{
Personality: &Personality{
Prompt: "You are a helpful assistant.",
},
}
log.SetOutput(io.Discard)
concurrentUsers := []int{10, 100, 1000}
for _, concurrentUsers := range concurrentUsers {
b.Run(fmt.Sprintf("SessionStress_%d", concurrentUsers), func(b *testing.B) {
for i := 0; i < b.N; i++ {
const sessionsPerUser = 50
const messagesPerUser = 50
var wg sync.WaitGroup
wg.Add(concurrentUsers)
for i := 0; i < concurrentUsers; i++ {
go func(userIndex int) {
defer wg.Done()
for k := 0; k < sessionsPerUser; k++ {
sessionID := fmt.Sprintf("session%d-%d", userIndex, k)
session := sessions.Get(sessionID)
action := rand.Intn(4)
switch action {
case 0: // Add user message
for j := 0; j < messagesPerUser; j++ {
session.Message(ctx, ai.ChatMessageRoleUser, fmt.Sprintf("User %d message %d", userIndex, j))
}
case 1: // Add assistant message
for j := 0; j < messagesPerUser; j++ {
session.Message(ctx, ai.ChatMessageRoleAssistant, fmt.Sprintf("Assistant response to user %d message %d", userIndex, j))
}
case 2: // Reset the session
session.Reset()
case 3: // Expire the session
session.Reap()
}
}
}(i)
}
wg.Wait()
}
})
}
}