Files
ModelRouter/internal/lua/vm_test.go
2026-08-16 17:51:43 +08:00

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package lua
import (
"encoding/json"
"os"
"path/filepath"
"strings"
"testing"
)
// freshAdapterDir returns a path under a temp dir that does not exist yet, so
// VM.Start() treats it as first-run and seeds the bundled adapters.
func freshAdapterDir(t *testing.T) string {
t.Helper()
return filepath.Join(t.TempDir(), "adapters")
}
func TestLoadBundledAdapters(t *testing.T) {
vm := NewVM(freshAdapterDir(t))
if err := vm.Start(); err != nil {
t.Fatalf("start: %v", err)
}
defer vm.Stop()
adapters := vm.ListAdapters()
if len(adapters) == 0 {
t.Fatal("no adapters loaded")
}
names := map[string]bool{}
for _, a := range adapters {
names[a.Name] = true
}
for _, want := range []string{"openai", "deepseek", "anthropic", "gemini", "ollama", "kimicode", "opencode"} {
if !names[want] {
t.Errorf("missing adapter %s (got %v)", want, names)
}
}
}
func TestFirstRunSeedsEveryBundledAdapter(t *testing.T) {
dir := filepath.Join(t.TempDir(), "adapters")
vm := NewVM(dir)
if err := vm.Start(); err != nil {
t.Fatalf("start: %v", err)
}
defer vm.Stop()
// every embedded .lua must have been copied out (and no extra, non-.lua files)
embedded, err := bundledAdapters.ReadDir("adapters")
if err != nil {
t.Fatal(err)
}
seeded := 0
for _, e := range embedded {
if e.IsDir() || !strings.HasSuffix(e.Name(), ".lua") {
continue
}
seeded++
if _, err := os.Stat(filepath.Join(dir, e.Name())); err != nil {
t.Errorf("embedded adapter %s not seeded", e.Name())
}
}
if seeded == 0 {
t.Fatal("no embedded adapters found")
}
written := 0
entries, _ := os.ReadDir(dir)
for _, e := range entries {
if !e.IsDir() && strings.HasSuffix(e.Name(), ".lua") {
written++
}
}
if written != seeded {
t.Fatalf("seeded %d files but %d embedded adapters exist", written, seeded)
}
// re-start with the existing dir: authoritative, never rewritten
vm2 := NewVM(dir)
if err := vm2.Start(); err != nil {
t.Fatalf("second start: %v", err)
}
defer vm2.Stop()
}
func TestTransformRequest(t *testing.T) {
vm := NewVM(freshAdapterDir(t))
if err := vm.Start(); err != nil {
t.Fatal(err)
}
defer vm.Stop()
out, err := vm.Transform("openai", "transform_request", `{"model":"x","disable_thinking":true,"messages":[]}`)
if err != nil {
t.Fatalf("transform: %v", err)
}
if strings.Contains(out, "disable_thinking") {
t.Fatalf("disable_thinking not stripped: %s", out)
}
}
func TestBuildHeadersFallbackStatic(t *testing.T) {
vm := NewVM(freshAdapterDir(t))
if err := vm.Start(); err != nil {
t.Fatal(err)
}
defer vm.Stop()
hdrs, err := vm.BuildHeaders("anthropic", nil)
if err != nil {
t.Fatalf("build headers: %v", err)
}
if hdrs["anthropic-version"] != "2023-06-01" {
t.Fatalf("static header missing: %v", hdrs)
}
}
func TestOpenCodeAdapterFingerprint(t *testing.T) {
vm := NewVM(freshAdapterDir(t))
if err := vm.Start(); err != nil {
t.Fatal(err)
}
defer vm.Stop()
hdrs, err := vm.BuildHeaders("opencode", map[string]interface{}{"api_key": "public"})
if err != nil {
t.Fatalf("build headers: %v", err)
}
if ua := hdrs["User-Agent"]; ua != "opencode/0.1.0" {
t.Fatalf("opencode adapter must send the opencode client UA, got %q", ua)
}
if hdrs["Authorization"] != "" {
t.Fatalf("opencode adapter must not hardcode Authorization (config api_key supplies it), got %q", hdrs["Authorization"])
}
// passthrough behaves like the openai adapter
out, err := vm.Transform("opencode", "transform_request", `{"model":"x","disable_thinking":true,"extra_body":{},"messages":[{"role":"user","content":"hi"}]}`)
if err != nil {
t.Fatal(err)
}
if strings.Contains(out, "disable_thinking") || strings.Contains(out, "extra_body") {
t.Fatalf("opencode transform_request must strip provider fields: %s", out)
}
}
func TestOpenCodeNormalizesRoles(t *testing.T) {
vm := NewVM(freshAdapterDir(t))
if err := vm.Start(); err != nil {
t.Fatal(err)
}
defer vm.Stop()
// zen 上游只接受 system/user/assistant/tool/latest_reminder
// OpenAI 系客户端发 `developer`Claude Code 还会用 `function`)必须归一化成 system。
body := `{"model":"x","messages":[
{"role":"developer","content":"you are helpful"},
{"role":"system","content":"sys"},
{"role":"user","content":"hi"},
{"role":"assistant","content":"ok"},
{"role":"tool","tool_call_id":"t1","content":"{\"ok\":true}"}
]}`
out, err := vm.Transform("opencode", "transform_request", body)
if err != nil {
t.Fatal(err)
}
if strings.Contains(out, `"developer"`) {
t.Fatalf("developer role must be normalized: %s", out)
}
if !strings.Contains(out, `"system"`) || !strings.Contains(out, `"user"`) {
t.Fatalf("allowed roles must survive: %s", out)
}
if !strings.Contains(out, `"assistant"`) {
t.Fatalf("assistant role must survive: %s", out)
}
if !strings.Contains(out, `"tool"`) {
t.Fatalf("tool role must survive: %s", out)
}
}
func TestOpenCodeStripsMultiModalParts(t *testing.T) {
vm := NewVM(freshAdapterDir(t))
if err := vm.Start(); err != nil {
t.Fatal(err)
}
defer vm.Stop()
body := `{"model":"x","messages":[
{"role":"user","content":[
{"type":"text","text":"describe"},
{"type":"image_url","image_url":{"url":"data:image/png;base64,QUJD"}},
{"type":"input_audio","input_audio":{"data":"QQ","format":"wav"}}
]},
{"role":"user","content":[{"type":"image_url","image_url":{"url":"https://ex.com/a.png"}}]},
{"role":"assistant","content":"plain"}
]}`
out, err := vm.Transform("opencode", "transform_request", body)
if err != nil {
t.Fatal(err)
}
if strings.Contains(out, "image_url") || strings.Contains(out, "input_audio") {
t.Fatalf("opencode must strip multimodal parts: %s", out)
}
if !strings.Contains(out, "describe") {
t.Fatalf("text parts must survive: %s", out)
}
// image-only message dropped: only the text message and plain assistant message remain
if got := strings.Count(out, `"role"`); got != 2 {
t.Fatalf("image-only message must be dropped, got %d messages: %s", got, out)
}
}
func TestBuildHeadersCustomHook(t *testing.T) {
vm := NewVM(freshAdapterDir(t))
if err := vm.Start(); err != nil {
t.Fatal(err)
}
defer vm.Stop()
hdrs, err := vm.BuildHeaders("kimicode", map[string]interface{}{
"timestamp": int64(12345),
"api_key": "k",
"body": "{}",
"method": "POST",
"url": "http://x/chat",
"source": map[string]interface{}{"meta": map[string]interface{}{
"app_id": "app-9", "app_secret": "s", "api_key": "k",
}},
})
if err != nil {
t.Fatalf("build headers: %v", err)
}
if hdrs["X-App-Id"] != "app-9" {
t.Fatalf("x-app-id = %q", hdrs["X-App-Id"])
}
if hdrs["X-App-Sign"] == "" {
t.Fatal("expected signature header")
}
if hdrs["X-Timestamp"] != "12345" {
t.Fatalf("timestamp = %q", hdrs["X-Timestamp"])
}
}
func TestDisableThinkingPassthrough(t *testing.T) {
vm := NewVM(freshAdapterDir(t))
if err := vm.Start(); err != nil {
t.Fatal(err)
}
defer vm.Stop()
body := `{"model":"x","disable_thinking":true,"messages":[{"role":"user","content":"hi"}]}`
out, err := vm.Transform("deepseek", "transform_request", body)
if err != nil {
t.Fatalf("deepseek transform: %v", err)
}
var req struct {
ExtraBody map[string]interface{} `json:"extra_body"`
}
if err := json.Unmarshal([]byte(out), &req); err != nil {
t.Fatalf("unmarshal: %v (%s)", err, out)
}
thinking, ok := req.ExtraBody["thinking"].(map[string]interface{})
if !ok {
t.Fatalf("deepseek should emit extra_body.thinking on disable_thinking: %s", out)
}
if thinking["type"] != "disabled" {
t.Fatalf("thinking.type = %v", thinking["type"])
}
// anthropic: disable_thinking removes the thinking block
out2, err := vm.Transform("anthropic", "transform_request", body)
if err != nil {
t.Fatalf("anthropic transform: %v", err)
}
if strings.Contains(out2, "thinking") {
t.Fatalf("anthropic should drop thinking when disable_thinking: %s", out2)
}
out3, err := vm.Transform("anthropic", "transform_request", `{"model":"x","messages":[{"role":"user","content":"hi"}]}`)
if err != nil {
t.Fatalf("anthropic transform: %v", err)
}
if !strings.Contains(out3, "enabled") {
t.Fatalf("anthropic should enable thinking by default: %s", out3)
}
}
func TestMultimodalTransform(t *testing.T) {
vm := NewVM(freshAdapterDir(t))
if err := vm.Start(); err != nil {
t.Fatal(err)
}
defer vm.Stop()
body := `{"model":"x","messages":[{"role":"user","content":[
{"type":"text","text":"what is this?"},
{"type":"image_url","image_url":{"url":"data:image/png;base64,QUJD"}},
{"type":"image_url","image_url":{"url":"https://ex.com/a.png"}}
]}]}`
// anthropic: image_url -> image block (base64/url), text preserved
out, err := vm.Transform("anthropic", "transform_request", body)
if err != nil {
t.Fatalf("anthropic: %v", err)
}
for _, want := range []string{`"media_type":"image/png"`, `"data":"QUJD"`, `"type":"url","url":"https://ex.com/a.png"`, `"what is this?"`} {
if !strings.Contains(out, want) {
t.Fatalf("anthropic multimodal missing %s: %s", want, out)
}
}
// gemini: image_url -> inline_data
gout, err := vm.Transform("gemini", "transform_request", body)
if err != nil {
t.Fatalf("gemini: %v", err)
}
var g struct {
Contents []struct {
Parts []map[string]interface{} `json:"parts"`
} `json:"contents"`
}
if err := json.Unmarshal([]byte(gout), &g); err != nil {
t.Fatalf("gemini unmarshal: %v", err)
}
if len(g.Contents) == 0 {
t.Fatalf("gemini no contents")
}
var found bool
for _, p := range g.Contents[0].Parts {
if v, ok := p["inline_data"].(map[string]interface{}); ok && v["data"] == "QUJD" && v["mime_type"] == "image/png" {
found = true
}
}
if !found {
t.Fatalf("gemini missing inline_data image: %s", gout)
}
// ollama: image_url -> images base64 array
out, err = vm.Transform("ollama", "transform_request", body)
if err != nil {
t.Fatalf("ollama: %v", err)
}
if !strings.Contains(out, `"images":["QUJD"]`) {
t.Fatalf("ollama multimodal missing images: %s", out)
}
// openai passthrough keeps the content array intact
po, _ := vm.Transform("openai", "transform_request", body)
if !strings.Contains(po, `"image_url"`) || !strings.Contains(po, `,QUJD"`) {
t.Fatalf("openai passthrough lost multimodal content: %s", po)
}
}
func TestOpenCodeAdapterNormalizesDeveloperRole(t *testing.T) {
vm := NewVM(freshAdapterDir(t))
if err := vm.Start(); err != nil {
t.Fatalf("start: %v", err)
}
defer vm.Stop()
raw := `{"model":"zen","messages":[` +
`{"role":"developer","content":"be concise"},` +
`{"role":"user","content":"hi"},` +
`{"role":"assistant","content":"hello"},` +
`{"role":"function","content":"{\"a\":1}"},` +
`{"role":"latest_reminder","content":"remind"}]}`
out, err := vm.Transform("opencode", "transform_request", raw)
if err != nil {
t.Fatalf("transform_request: %v", err)
}
var req struct {
Messages []struct {
Role string `json:"role"`
} `json:"messages"`
}
if err := json.Unmarshal([]byte(out), &req); err != nil {
t.Fatalf("output not JSON: %v\n%s", err, out)
}
want := []string{"system", "user", "assistant", "system", "latest_reminder"}
if len(req.Messages) != len(want) {
t.Fatalf("got %d messages, want %d: %s", len(req.Messages), len(want), out)
}
for i, w := range want {
if req.Messages[i].Role != w {
t.Errorf("message %d role = %q, want %q", i, req.Messages[i].Role, w)
}
}
}
func TestOpenCodeAdapterKeepsWhitelistedRolesAndDropsMultimodal(t *testing.T) {
vm := NewVM(freshAdapterDir(t))
if err := vm.Start(); err != nil {
t.Fatalf("start: %v", err)
}
defer vm.Stop()
raw := `{"messages":[` +
`{"role":"system","content":"sys"},` +
`{"role":"user","content":[{"type":"text","text":"keep"},{"type":"image_url","url":"x"}]},` +
`{"role":"user","content":[{"type":"image_url","url":"x"}]}]}`
out, err := vm.Transform("opencode", "transform_request", raw)
if err != nil {
t.Fatalf("transform_request: %v", err)
}
var req struct {
Messages []struct {
Role string `json:"role"`
Content any `json:"content"`
} `json:"messages"`
}
if err := json.Unmarshal([]byte(out), &req); err != nil {
t.Fatalf("output not JSON: %v\n%s", err, out)
}
if len(req.Messages) != 2 {
t.Fatalf("got %d messages, want 2 (multimodal-only dropped): %s", len(req.Messages), out)
}
if req.Messages[0].Role != "system" || req.Messages[1].Role != "user" {
t.Fatalf("unexpected roles: %s", out)
}
}