Files
llama-swap/proxy/proxymanager_test.go
Benson Wong 5fad24c16f Make checkHealthTimeout Interruptable during startup (#102)
interrupt and exit Process.start() early if the upstream process exits prematurely or unexpectedly.
2025-04-24 14:39:33 -07:00

723 lines
20 KiB
Go

package proxy
import (
"bytes"
"encoding/json"
"fmt"
"math/rand"
"mime/multipart"
"net/http"
"net/http/httptest"
"sync"
"testing"
"time"
"github.com/stretchr/testify/assert"
)
func TestProxyManager_SwapProcessCorrectly(t *testing.T) {
config := &Config{
HealthCheckTimeout: 15,
Models: map[string]ModelConfig{
"model1": getTestSimpleResponderConfig("model1"),
"model2": getTestSimpleResponderConfig("model2"),
},
LogLevel: "error",
}
proxy := New(config)
defer proxy.StopProcesses()
for _, modelName := range []string{"model1", "model2"} {
reqBody := fmt.Sprintf(`{"model":"%s"}`, modelName)
req := httptest.NewRequest("POST", "/v1/chat/completions", bytes.NewBufferString(reqBody))
w := httptest.NewRecorder()
proxy.HandlerFunc(w, req)
assert.Equal(t, http.StatusOK, w.Code)
assert.Contains(t, w.Body.String(), modelName)
_, exists := proxy.currentProcesses[ProcessKeyName("", modelName)]
assert.True(t, exists, "expected %s key in currentProcesses", modelName)
}
// make sure there's only one loaded model
assert.Len(t, proxy.currentProcesses, 1)
}
func TestProxyManager_SwapMultiProcess(t *testing.T) {
model1 := "path1/model1"
model2 := "path2/model2"
profileModel1 := ProcessKeyName("test", model1)
profileModel2 := ProcessKeyName("test", model2)
config := &Config{
HealthCheckTimeout: 15,
Models: map[string]ModelConfig{
model1: getTestSimpleResponderConfig("model1"),
model2: getTestSimpleResponderConfig("model2"),
},
Profiles: map[string][]string{
"test": {model1, model2},
},
LogLevel: "error",
}
proxy := New(config)
defer proxy.StopProcesses()
for modelID, requestedModel := range map[string]string{
"model1": profileModel1,
"model2": profileModel2,
} {
reqBody := fmt.Sprintf(`{"model":"%s"}`, requestedModel)
req := httptest.NewRequest("POST", "/v1/chat/completions", bytes.NewBufferString(reqBody))
w := httptest.NewRecorder()
proxy.HandlerFunc(w, req)
assert.Equal(t, http.StatusOK, w.Code)
assert.Contains(t, w.Body.String(), modelID)
}
// make sure there's two loaded models
assert.Len(t, proxy.currentProcesses, 2)
_, exists := proxy.currentProcesses[profileModel1]
assert.True(t, exists, "expected "+profileModel1+" key in currentProcesses")
_, exists = proxy.currentProcesses[profileModel2]
assert.True(t, exists, "expected "+profileModel2+" key in currentProcesses")
}
// When a request for a different model comes in ProxyManager should wait until
// the first request is complete before swapping. Both requests should complete
func TestProxyManager_SwapMultiProcessParallelRequests(t *testing.T) {
if testing.Short() {
t.Skip("skipping slow test")
}
config := &Config{
HealthCheckTimeout: 15,
Models: map[string]ModelConfig{
"model1": getTestSimpleResponderConfig("model1"),
"model2": getTestSimpleResponderConfig("model2"),
"model3": getTestSimpleResponderConfig("model3"),
},
LogLevel: "error",
}
proxy := New(config)
defer proxy.StopProcesses()
results := map[string]string{}
var wg sync.WaitGroup
var mu sync.Mutex
for key := range config.Models {
wg.Add(1)
go func(key string) {
defer wg.Done()
reqBody := fmt.Sprintf(`{"model":"%s"}`, key)
req := httptest.NewRequest("POST", "/v1/chat/completions?wait=1000ms", bytes.NewBufferString(reqBody))
w := httptest.NewRecorder()
proxy.HandlerFunc(w, req)
if w.Code != http.StatusOK {
t.Errorf("Expected status OK, got %d for key %s", w.Code, key)
}
mu.Lock()
results[key] = w.Body.String()
mu.Unlock()
}(key)
<-time.After(time.Millisecond)
}
wg.Wait()
assert.Len(t, results, len(config.Models))
for key, result := range results {
assert.Equal(t, key, result)
}
}
func TestProxyManager_ListModelsHandler(t *testing.T) {
config := &Config{
HealthCheckTimeout: 15,
Models: map[string]ModelConfig{
"model1": getTestSimpleResponderConfig("model1"),
"model2": getTestSimpleResponderConfig("model2"),
"model3": getTestSimpleResponderConfig("model3"),
},
LogLevel: "error",
}
proxy := New(config)
// Create a test request
req := httptest.NewRequest("GET", "/v1/models", nil)
req.Header.Add("Origin", "i-am-the-origin")
w := httptest.NewRecorder()
// Call the listModelsHandler
proxy.HandlerFunc(w, req)
// Check the response status code
assert.Equal(t, http.StatusOK, w.Code)
// Check for Access-Control-Allow-Origin
assert.Equal(t, req.Header.Get("Origin"), w.Result().Header.Get("Access-Control-Allow-Origin"))
// Parse the JSON response
var response struct {
Data []map[string]interface{} `json:"data"`
}
if err := json.Unmarshal(w.Body.Bytes(), &response); err != nil {
t.Fatalf("Failed to parse JSON response: %v", err)
}
// Check the number of models returned
assert.Len(t, response.Data, 3)
// Check the details of each model
expectedModels := map[string]struct{}{
"model1": {},
"model2": {},
"model3": {},
}
for _, model := range response.Data {
modelID, ok := model["id"].(string)
assert.True(t, ok, "model ID should be a string")
_, exists := expectedModels[modelID]
assert.True(t, exists, "unexpected model ID: %s", modelID)
delete(expectedModels, modelID)
object, ok := model["object"].(string)
assert.True(t, ok, "object should be a string")
assert.Equal(t, "model", object)
created, ok := model["created"].(float64)
assert.True(t, ok, "created should be a number")
assert.Greater(t, created, float64(0)) // Assuming the timestamp is positive
ownedBy, ok := model["owned_by"].(string)
assert.True(t, ok, "owned_by should be a string")
assert.Equal(t, "llama-swap", ownedBy)
}
// Ensure all expected models were returned
assert.Empty(t, expectedModels, "not all expected models were returned")
}
func TestProxyManager_ProfileNonMember(t *testing.T) {
model1 := "path1/model1"
model2 := "path2/model2"
profileMemberName := ProcessKeyName("test", model1)
profileNonMemberName := ProcessKeyName("test", model2)
config := &Config{
HealthCheckTimeout: 15,
Models: map[string]ModelConfig{
model1: getTestSimpleResponderConfig("model1"),
model2: getTestSimpleResponderConfig("model2"),
},
Profiles: map[string][]string{
"test": {model1},
},
LogLevel: "error",
}
proxy := New(config)
defer proxy.StopProcesses()
// actual member of profile
{
reqBody := fmt.Sprintf(`{"model":"%s"}`, profileMemberName)
req := httptest.NewRequest("POST", "/v1/chat/completions", bytes.NewBufferString(reqBody))
w := httptest.NewRecorder()
proxy.HandlerFunc(w, req)
assert.Equal(t, http.StatusOK, w.Code)
assert.Contains(t, w.Body.String(), "model1")
}
// actual model, but non-member will 404
{
reqBody := fmt.Sprintf(`{"model":"%s"}`, profileNonMemberName)
req := httptest.NewRequest("POST", "/v1/chat/completions", bytes.NewBufferString(reqBody))
w := httptest.NewRecorder()
proxy.HandlerFunc(w, req)
assert.Equal(t, http.StatusNotFound, w.Code)
}
}
func TestProxyManager_Shutdown(t *testing.T) {
// make broken model configurations
model1Config := getTestSimpleResponderConfigPort("model1", 9991)
model1Config.Proxy = "http://localhost:10001/"
model2Config := getTestSimpleResponderConfigPort("model2", 9992)
model2Config.Proxy = "http://localhost:10002/"
model3Config := getTestSimpleResponderConfigPort("model3", 9993)
model3Config.Proxy = "http://localhost:10003/"
config := &Config{
HealthCheckTimeout: 15,
Profiles: map[string][]string{
"test": {"model1", "model2", "model3"},
},
Models: map[string]ModelConfig{
"model1": model1Config,
"model2": model2Config,
"model3": model3Config,
},
LogLevel: "error",
}
proxy := New(config)
// Start all the processes
var wg sync.WaitGroup
for _, modelName := range []string{"test:model1", "test:model2", "test:model3"} {
wg.Add(1)
go func(modelName string) {
defer wg.Done()
reqBody := fmt.Sprintf(`{"model":"%s"}`, modelName)
req := httptest.NewRequest("POST", "/v1/chat/completions", bytes.NewBufferString(reqBody))
w := httptest.NewRecorder()
// send a request to trigger the proxy to load
proxy.HandlerFunc(w, req)
assert.Equal(t, http.StatusBadGateway, w.Code)
assert.Contains(t, w.Body.String(), "health check interrupted due to shutdown")
//fmt.Println(w.Code, w.Body.String())
}(modelName)
}
go func() {
<-time.After(time.Second)
proxy.Shutdown()
}()
wg.Wait()
}
func TestProxyManager_Unload(t *testing.T) {
config := &Config{
HealthCheckTimeout: 15,
Models: map[string]ModelConfig{
"model1": getTestSimpleResponderConfig("model1"),
},
LogLevel: "error",
}
proxy := New(config)
proc, err := proxy.swapModel("model1")
assert.NoError(t, err)
assert.NotNil(t, proc)
assert.Len(t, proxy.currentProcesses, 1)
req := httptest.NewRequest("GET", "/unload", nil)
w := httptest.NewRecorder()
proxy.HandlerFunc(w, req)
assert.Equal(t, http.StatusOK, w.Code)
assert.Equal(t, w.Body.String(), "OK")
assert.Len(t, proxy.currentProcesses, 0)
}
// issue 62, strip profile slug from model name
func TestProxyManager_StripProfileSlug(t *testing.T) {
config := &Config{
HealthCheckTimeout: 15,
Profiles: map[string][]string{
"test": {"TheExpectedModel"}, // TheExpectedModel is default in simple-responder.go
},
Models: map[string]ModelConfig{
"TheExpectedModel": getTestSimpleResponderConfig("TheExpectedModel"),
},
LogLevel: "error",
}
proxy := New(config)
defer proxy.StopProcesses()
reqBody := fmt.Sprintf(`{"model":"%s"}`, "test:TheExpectedModel")
req := httptest.NewRequest("POST", "/v1/audio/speech", bytes.NewBufferString(reqBody))
w := httptest.NewRecorder()
proxy.HandlerFunc(w, req)
assert.Equal(t, http.StatusOK, w.Code)
assert.Contains(t, w.Body.String(), "ok")
}
// Test issue #61 `Listing the current list of models and the loaded model.`
func TestProxyManager_RunningEndpoint(t *testing.T) {
// Shared configuration
config := &Config{
HealthCheckTimeout: 15,
Models: map[string]ModelConfig{
"model1": getTestSimpleResponderConfig("model1"),
"model2": getTestSimpleResponderConfig("model2"),
},
Profiles: map[string][]string{
"test": {"model1", "model2"},
},
LogLevel: "error",
}
// Define a helper struct to parse the JSON response.
type RunningResponse struct {
Running []struct {
Model string `json:"model"`
State string `json:"state"`
} `json:"running"`
}
// Create proxy once for all tests
proxy := New(config)
defer proxy.StopProcesses()
t.Run("no models loaded", func(t *testing.T) {
req := httptest.NewRequest("GET", "/running", nil)
w := httptest.NewRecorder()
proxy.HandlerFunc(w, req)
assert.Equal(t, http.StatusOK, w.Code)
var response RunningResponse
// Check if this is a valid JSON object.
assert.NoError(t, json.Unmarshal(w.Body.Bytes(), &response))
// We should have an empty running array here.
assert.Empty(t, response.Running, "expected no running models")
})
t.Run("single model loaded", func(t *testing.T) {
// Load just a model.
reqBody := `{"model":"model1"}`
req := httptest.NewRequest("POST", "/v1/chat/completions", bytes.NewBufferString(reqBody))
w := httptest.NewRecorder()
proxy.HandlerFunc(w, req)
assert.Equal(t, http.StatusOK, w.Code)
// Simulate browser call for the `/running` endpoint.
req = httptest.NewRequest("GET", "/running", nil)
w = httptest.NewRecorder()
proxy.HandlerFunc(w, req)
var response RunningResponse
assert.NoError(t, json.Unmarshal(w.Body.Bytes(), &response))
// Check if we have a single array element.
assert.Len(t, response.Running, 1)
// Is this the right model?
assert.Equal(t, "model1", response.Running[0].Model)
// Is the model loaded?
assert.Equal(t, "ready", response.Running[0].State)
})
t.Run("multiple models via profile", func(t *testing.T) {
// Load more than one model.
for _, model := range []string{"model1", "model2"} {
profileModel := ProcessKeyName("test", model)
reqBody := fmt.Sprintf(`{"model":"%s"}`, profileModel)
req := httptest.NewRequest("POST", "/v1/chat/completions", bytes.NewBufferString(reqBody))
w := httptest.NewRecorder()
proxy.HandlerFunc(w, req)
assert.Equal(t, http.StatusOK, w.Code)
}
// Simulate the browser call.
req := httptest.NewRequest("GET", "/running", nil)
w := httptest.NewRecorder()
proxy.HandlerFunc(w, req)
var response RunningResponse
// The JSON response must be valid.
assert.NoError(t, json.Unmarshal(w.Body.Bytes(), &response))
// The response should contain 2 models.
assert.Len(t, response.Running, 2)
expectedModels := map[string]struct{}{
"model1": {},
"model2": {},
}
// Iterate through the models and check their states as well.
for _, entry := range response.Running {
_, exists := expectedModels[entry.Model]
assert.True(t, exists, "unexpected model %s", entry.Model)
assert.Equal(t, "ready", entry.State)
delete(expectedModels, entry.Model)
}
// Since we deleted each model while testing for its validity we should have no more models in the response.
assert.Empty(t, expectedModels, "unexpected additional models in response")
})
}
func TestProxyManager_AudioTranscriptionHandler(t *testing.T) {
config := &Config{
HealthCheckTimeout: 15,
Profiles: map[string][]string{
"test": {"TheExpectedModel"},
},
Models: map[string]ModelConfig{
"TheExpectedModel": getTestSimpleResponderConfig("TheExpectedModel"),
},
LogLevel: "error",
}
proxy := New(config)
defer proxy.StopProcesses()
testCases := []struct {
name string
modelInput string
expectModel string
}{
{
name: "With Profile Prefix",
modelInput: "test:TheExpectedModel",
expectModel: "TheExpectedModel", // Profile prefix should be stripped
},
{
name: "Without Profile Prefix",
modelInput: "TheExpectedModel",
expectModel: "TheExpectedModel", // Should remain the same
},
}
for _, tc := range testCases {
t.Run(tc.name, func(t *testing.T) {
// Create a buffer with multipart form data
var b bytes.Buffer
w := multipart.NewWriter(&b)
// Add the model field
fw, err := w.CreateFormField("model")
assert.NoError(t, err)
_, err = fw.Write([]byte(tc.modelInput))
assert.NoError(t, err)
// Add a file field
fw, err = w.CreateFormFile("file", "test.mp3")
assert.NoError(t, err)
// Generate random content length between 10 and 20
contentLength := rand.Intn(11) + 10 // 10 to 20
content := make([]byte, contentLength)
_, err = fw.Write(content)
assert.NoError(t, err)
w.Close()
// Create the request with the multipart form data
req := httptest.NewRequest("POST", "/v1/audio/transcriptions", &b)
req.Header.Set("Content-Type", w.FormDataContentType())
rec := httptest.NewRecorder()
proxy.HandlerFunc(rec, req)
// Verify the response
assert.Equal(t, http.StatusOK, rec.Code)
var response map[string]string
err = json.Unmarshal(rec.Body.Bytes(), &response)
assert.NoError(t, err)
assert.Equal(t, tc.expectModel, response["model"])
assert.Equal(t, response["text"], fmt.Sprintf("The length of the file is %d bytes", contentLength)) // matches simple-responder
})
}
}
func TestProxyManager_SplitRequestedModel(t *testing.T) {
tests := []struct {
name string
requestedModel string
expectedProfile string
expectedModel string
}{
{"no profile", "gpt-4", "", "gpt-4"},
{"with profile", "profile1:gpt-4", "profile1", "gpt-4"},
{"only profile", "profile1:", "profile1", ""},
{"empty model", ":gpt-4", "", "gpt-4"},
{"empty profile", ":", "", ""},
{"no split char", "gpt-4", "", "gpt-4"},
{"profile and model with delimiter", "profile1:delimiter:gpt-4", "profile1", "delimiter:gpt-4"},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
profileName, modelName := splitRequestedModel(tt.requestedModel)
if profileName != tt.expectedProfile {
t.Errorf("splitRequestedModel(%q) = %q, %q; want %q, %q", tt.requestedModel, profileName, modelName, tt.expectedProfile, tt.expectedModel)
}
if modelName != tt.expectedModel {
t.Errorf("splitRequestedModel(%q) = %q, %q; want %q, %q", tt.requestedModel, profileName, modelName, tt.expectedProfile, tt.expectedModel)
}
})
}
}
// Test useModelName in configuration sends overrides what is sent to upstream
func TestProxyManager_UseModelName(t *testing.T) {
upstreamModelName := "upstreamModel"
modelConfig := getTestSimpleResponderConfig(upstreamModelName)
modelConfig.UseModelName = upstreamModelName
config := &Config{
HealthCheckTimeout: 15,
Profiles: map[string][]string{
"test": {"model1"},
},
Models: map[string]ModelConfig{
"model1": modelConfig,
},
LogLevel: "error",
}
proxy := New(config)
defer proxy.StopProcesses()
tests := []struct {
description string
requestedModel string
}{
{"useModelName over rides requested model", "model1"},
{"useModelName over rides requested profile:model", "test:model1"},
}
for _, tt := range tests {
t.Run(tt.description+": /v1/chat/completions", func(t *testing.T) {
reqBody := fmt.Sprintf(`{"model":"%s"}`, tt.requestedModel)
req := httptest.NewRequest("POST", "/v1/chat/completions", bytes.NewBufferString(reqBody))
w := httptest.NewRecorder()
proxy.HandlerFunc(w, req)
assert.Equal(t, http.StatusOK, w.Code)
assert.Contains(t, w.Body.String(), upstreamModelName)
})
}
for _, tt := range tests {
t.Run(tt.description+": /v1/audio/transcriptions", func(t *testing.T) {
// Create a buffer with multipart form data
var b bytes.Buffer
w := multipart.NewWriter(&b)
// Add the model field
fw, err := w.CreateFormField("model")
assert.NoError(t, err)
_, err = fw.Write([]byte(tt.requestedModel))
assert.NoError(t, err)
// Add a file field
fw, err = w.CreateFormFile("file", "test.mp3")
assert.NoError(t, err)
_, err = fw.Write([]byte("test"))
assert.NoError(t, err)
w.Close()
// Create the request with the multipart form data
req := httptest.NewRequest("POST", "/v1/audio/transcriptions", &b)
req.Header.Set("Content-Type", w.FormDataContentType())
rec := httptest.NewRecorder()
proxy.HandlerFunc(rec, req)
// Verify the response
assert.Equal(t, http.StatusOK, rec.Code)
var response map[string]string
err = json.Unmarshal(rec.Body.Bytes(), &response)
assert.NoError(t, err)
assert.Equal(t, upstreamModelName, response["model"])
})
}
}
func TestProxyManager_CORSOptionsHandler(t *testing.T) {
config := &Config{
HealthCheckTimeout: 15,
Models: map[string]ModelConfig{
"model1": getTestSimpleResponderConfig("model1"),
},
LogLevel: "error",
}
tests := []struct {
name string
method string
requestHeaders map[string]string
expectedStatus int
expectedHeaders map[string]string
}{
{
name: "OPTIONS with no headers",
method: "OPTIONS",
expectedStatus: http.StatusNoContent,
expectedHeaders: map[string]string{
"Access-Control-Allow-Origin": "*",
"Access-Control-Allow-Methods": "GET, POST, PUT, PATCH, DELETE, OPTIONS",
"Access-Control-Allow-Headers": "Content-Type, Authorization, Accept, X-Requested-With",
},
},
{
name: "OPTIONS with specific headers",
method: "OPTIONS",
requestHeaders: map[string]string{
"Access-Control-Request-Headers": "X-Custom-Header, Some-Other-Header",
},
expectedStatus: http.StatusNoContent,
expectedHeaders: map[string]string{
"Access-Control-Allow-Origin": "*",
"Access-Control-Allow-Methods": "GET, POST, PUT, PATCH, DELETE, OPTIONS",
"Access-Control-Allow-Headers": "X-Custom-Header, Some-Other-Header",
},
},
{
name: "Non-OPTIONS request",
method: "GET",
expectedStatus: http.StatusNotFound, // Since we don't have a GET route defined
},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
proxy := New(config)
defer proxy.StopProcesses()
req := httptest.NewRequest(tt.method, "/v1/chat/completions", nil)
for k, v := range tt.requestHeaders {
req.Header.Set(k, v)
}
w := httptest.NewRecorder()
proxy.ginEngine.ServeHTTP(w, req)
assert.Equal(t, tt.expectedStatus, w.Code)
for header, expectedValue := range tt.expectedHeaders {
assert.Equal(t, expectedValue, w.Header().Get(header))
}
})
}
}