File size: 11,906 Bytes
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import (
"context"
"encoding/json"
"errors"
"net/http"
"net/http/httptest"
"strings"
"testing"
"github.com/go-chi/chi/v5"
"ds2api/internal/auth"
dsclient "ds2api/internal/deepseek/client"
)
type inlineUploadDSStub struct {
uploadCalls []dsclient.UploadFileRequest
lastCtx context.Context
completionReq map[string]any
createSession string
uploadErr error
completionResp *http.Response
}
func (m *inlineUploadDSStub) CreateSession(_ context.Context, _ *auth.RequestAuth, _ int) (string, error) {
if strings.TrimSpace(m.createSession) == "" {
return "session-id", nil
}
return m.createSession, nil
}
func (m *inlineUploadDSStub) GetPow(_ context.Context, _ *auth.RequestAuth, _ int) (string, error) {
return "pow", nil
}
func (m *inlineUploadDSStub) UploadFile(ctx context.Context, _ *auth.RequestAuth, req dsclient.UploadFileRequest, _ int) (*dsclient.UploadFileResult, error) {
m.lastCtx = ctx
m.uploadCalls = append(m.uploadCalls, req)
if m.uploadErr != nil {
return nil, m.uploadErr
}
return &dsclient.UploadFileResult{
ID: "file-inline-1",
Filename: req.Filename,
Bytes: int64(len(req.Data)),
Status: "uploaded",
Purpose: req.Purpose,
}, nil
}
func (m *inlineUploadDSStub) CallCompletion(_ context.Context, _ *auth.RequestAuth, payload map[string]any, _ string, _ int) (*http.Response, error) {
m.completionReq = payload
if m.completionResp != nil {
return m.completionResp, nil
}
return makeOpenAISSEHTTPResponse(
`data: {"p":"response/content","v":"ok"}`,
`data: [DONE]`,
), nil
}
func (m *inlineUploadDSStub) DeleteSessionForToken(_ context.Context, _ string, _ string) (*dsclient.DeleteSessionResult, error) {
return &dsclient.DeleteSessionResult{Success: true}, nil
}
func (m *inlineUploadDSStub) DeleteAllSessionsForToken(_ context.Context, _ string) error {
return nil
}
func TestPreprocessInlineFileInputsReplacesDataURLAndCollectsRefFileIDs(t *testing.T) {
ds := &inlineUploadDSStub{}
h := &openAITestSurface{DS: ds}
req := map[string]any{
"messages": []any{
map[string]any{
"role": "user",
"content": []any{
map[string]any{
"type": "image_url",
"image_url": map[string]any{"url": "data:image/png;base64,QUJDRA=="},
},
},
},
},
}
ctx, cancel := context.WithCancel(context.Background())
defer cancel()
if err := h.preprocessInlineFileInputs(ctx, &auth.RequestAuth{DeepSeekToken: "token"}, req); err != nil {
t.Fatalf("preprocess failed: %v", err)
}
if len(ds.uploadCalls) != 1 {
t.Fatalf("expected 1 upload, got %d", len(ds.uploadCalls))
}
if ds.uploadCalls[0].ModelType != "default" {
t.Fatalf("expected default model type when request omits model, got %q", ds.uploadCalls[0].ModelType)
}
if ds.lastCtx != ctx {
t.Fatalf("expected upload to use request context")
}
if ds.uploadCalls[0].ContentType != "image/png" {
t.Fatalf("expected image/png, got %q", ds.uploadCalls[0].ContentType)
}
if ds.uploadCalls[0].Filename != "image.png" {
t.Fatalf("expected inferred filename image.png, got %q", ds.uploadCalls[0].Filename)
}
messages, _ := req["messages"].([]any)
first, _ := messages[0].(map[string]any)
content, _ := first["content"].([]any)
block, _ := content[0].(map[string]any)
if block["type"] != "input_image" {
t.Fatalf("expected input_image replacement, got %#v", block)
}
if block["file_id"] != "file-inline-1" {
t.Fatalf("expected file-inline-1 replacement id, got %#v", block)
}
refIDs, _ := req["ref_file_ids"].([]any)
if len(refIDs) != 1 || refIDs[0] != "file-inline-1" {
t.Fatalf("unexpected ref_file_ids: %#v", req["ref_file_ids"])
}
}
func TestPreprocessInlineFileInputsDeduplicatesIdenticalPayloads(t *testing.T) {
ds := &inlineUploadDSStub{}
h := &openAITestSurface{DS: ds}
req := map[string]any{
"messages": []any{
map[string]any{
"role": "user",
"content": []any{
map[string]any{"type": "image_url", "image_url": map[string]any{"url": "data:image/png;base64,QUJDRA=="}},
map[string]any{"type": "image_url", "image_url": map[string]any{"url": "data:image/png;base64,QUJDRA=="}},
},
},
},
}
if err := h.preprocessInlineFileInputs(context.Background(), &auth.RequestAuth{DeepSeekToken: "token"}, req); err != nil {
t.Fatalf("preprocess failed: %v", err)
}
if len(ds.uploadCalls) != 1 {
t.Fatalf("expected deduplicated single upload, got %d", len(ds.uploadCalls))
}
refIDs, _ := req["ref_file_ids"].([]any)
if len(refIDs) != 1 || refIDs[0] != "file-inline-1" {
t.Fatalf("unexpected ref_file_ids after dedupe: %#v", req["ref_file_ids"])
}
}
func TestChatCompletionsUploadsInlineFilesBeforeCompletion(t *testing.T) {
ds := &inlineUploadDSStub{}
h := &openAITestSurface{Store: mockOpenAIConfig{}, Auth: streamStatusAuthStub{}, DS: ds}
reqBody := `{"model":"deepseek-v4-vision","messages":[{"role":"user","content":[{"type":"input_text","text":"hi"},{"type":"image_url","image_url":{"url":"data:image/png;base64,QUJDRA=="}}]}],"stream":false}`
req := httptest.NewRequest(http.MethodPost, "/v1/chat/completions", strings.NewReader(reqBody))
req.Header.Set("Authorization", "Bearer direct-token")
req.Header.Set("Content-Type", "application/json")
rec := httptest.NewRecorder()
h.ChatCompletions(rec, req)
if rec.Code != http.StatusOK {
t.Fatalf("expected 200, got %d body=%s", rec.Code, rec.Body.String())
}
if len(ds.uploadCalls) != 1 {
t.Fatalf("expected 1 upload call, got %d", len(ds.uploadCalls))
}
if ds.uploadCalls[0].ModelType != "vision" {
t.Fatalf("expected vision model type for vision request, got %q", ds.uploadCalls[0].ModelType)
}
if ds.completionReq == nil {
t.Fatal("expected completion payload to be captured")
}
refIDs, _ := ds.completionReq["ref_file_ids"].([]any)
if len(refIDs) != 1 || refIDs[0] != "file-inline-1" {
t.Fatalf("unexpected completion ref_file_ids: %#v", ds.completionReq["ref_file_ids"])
}
}
func TestResponsesUploadsInlineFilesBeforeCompletion(t *testing.T) {
ds := &inlineUploadDSStub{}
h := &openAITestSurface{Store: mockOpenAIConfig{}, Auth: streamStatusAuthStub{}, DS: ds}
r := chi.NewRouter()
registerOpenAITestRoutes(r, h)
reqBody := `{"model":"deepseek-v4-pro","input":[{"role":"user","content":[{"type":"input_text","text":"hi"},{"type":"input_image","image_url":{"url":"data:image/png;base64,QUJDRA=="}}]}],"stream":false}`
req := httptest.NewRequest(http.MethodPost, "/v1/responses", strings.NewReader(reqBody))
req.Header.Set("Authorization", "Bearer direct-token")
req.Header.Set("Content-Type", "application/json")
rec := httptest.NewRecorder()
r.ServeHTTP(rec, req)
if rec.Code != http.StatusOK {
t.Fatalf("expected 200, got %d body=%s", rec.Code, rec.Body.String())
}
if len(ds.uploadCalls) != 1 {
t.Fatalf("expected 1 upload call, got %d", len(ds.uploadCalls))
}
if ds.uploadCalls[0].ModelType != "expert" {
t.Fatalf("expected expert model type for pro request, got %q", ds.uploadCalls[0].ModelType)
}
refIDs, _ := ds.completionReq["ref_file_ids"].([]any)
if len(refIDs) != 1 || refIDs[0] != "file-inline-1" {
t.Fatalf("unexpected completion ref_file_ids: %#v", ds.completionReq["ref_file_ids"])
}
}
func TestChatCompletionsInlineUploadFailureReturnsBadRequest(t *testing.T) {
ds := &inlineUploadDSStub{}
h := &openAITestSurface{Store: mockOpenAIConfig{}, Auth: streamStatusAuthStub{}, DS: ds}
reqBody := `{"model":"deepseek-v4-flash","messages":[{"role":"user","content":[{"type":"image_url","image_url":{"url":"data:image/png;base64,%%%"}}]}],"stream":false}`
req := httptest.NewRequest(http.MethodPost, "/v1/chat/completions", strings.NewReader(reqBody))
req.Header.Set("Authorization", "Bearer direct-token")
req.Header.Set("Content-Type", "application/json")
rec := httptest.NewRecorder()
h.ChatCompletions(rec, req)
if rec.Code != http.StatusBadRequest {
t.Fatalf("expected 400, got %d body=%s", rec.Code, rec.Body.String())
}
if ds.completionReq != nil {
t.Fatalf("did not expect completion call on upload decode error")
}
}
func TestChatCompletionsInlineUploadLimitReturnsBadRequest(t *testing.T) {
ds := &inlineUploadDSStub{}
h := &openAITestSurface{Store: mockOpenAIConfig{}, Auth: streamStatusAuthStub{}, DS: ds}
content := []any{map[string]any{"type": "input_text", "text": "hi"}}
for i := 0; i < 51; i++ {
content = append(content, map[string]any{
"type": "image_url",
"image_url": map[string]any{"url": "data:image/png;base64,QUJDRA=="},
})
}
body, err := json.Marshal(map[string]any{
"model": "deepseek-v4-flash",
"messages": []any{map[string]any{
"role": "user",
"content": content,
}},
"stream": false,
})
if err != nil {
t.Fatalf("marshal request: %v", err)
}
req := httptest.NewRequest(http.MethodPost, "/v1/chat/completions", strings.NewReader(string(body)))
req.Header.Set("Authorization", "Bearer direct-token")
req.Header.Set("Content-Type", "application/json")
rec := httptest.NewRecorder()
h.ChatCompletions(rec, req)
if rec.Code != http.StatusBadRequest {
t.Fatalf("expected 400, got %d body=%s", rec.Code, rec.Body.String())
}
if !strings.Contains(rec.Body.String(), "exceeded maximum of 50 inline files per request") {
t.Fatalf("expected inline file limit error, got body=%s", rec.Body.String())
}
if ds.completionReq != nil {
t.Fatalf("did not expect completion call after inline file limit error")
}
}
func TestResponsesInlineUploadFailureReturnsInternalServerError(t *testing.T) {
ds := &inlineUploadDSStub{uploadErr: errors.New("boom")}
h := &openAITestSurface{Store: mockOpenAIConfig{}, Auth: streamStatusAuthStub{}, DS: ds}
r := chi.NewRouter()
registerOpenAITestRoutes(r, h)
reqBody := `{"model":"deepseek-v4-flash","input":[{"role":"user","content":[{"type":"image_url","image_url":{"url":"data:image/png;base64,QUJDRA=="}}]}],"stream":false}`
req := httptest.NewRequest(http.MethodPost, "/v1/responses", strings.NewReader(reqBody))
req.Header.Set("Authorization", "Bearer direct-token")
req.Header.Set("Content-Type", "application/json")
rec := httptest.NewRecorder()
r.ServeHTTP(rec, req)
if rec.Code != http.StatusInternalServerError {
t.Fatalf("expected 500, got %d body=%s", rec.Code, rec.Body.String())
}
if ds.completionReq != nil {
t.Fatalf("did not expect completion call after upload failure")
}
}
func TestVercelPrepareUploadsInlineFilesBeforeLeasePayload(t *testing.T) {
t.Setenv("VERCEL", "1")
t.Setenv("DS2API_VERCEL_INTERNAL_SECRET", "stream-secret")
ds := &inlineUploadDSStub{}
h := &openAITestSurface{Store: mockOpenAIConfig{}, Auth: streamStatusAuthStub{}, DS: ds}
r := chi.NewRouter()
registerOpenAITestRoutes(r, h)
reqBody := `{"model":"deepseek-v4-flash","messages":[{"role":"user","content":[{"type":"input_text","text":"hi"},{"type":"image_url","image_url":{"url":"data:image/png;base64,QUJDRA=="}}]}],"stream":true}`
req := httptest.NewRequest(http.MethodPost, "/v1/chat/completions?__stream_prepare=1", strings.NewReader(reqBody))
req.Header.Set("Authorization", "Bearer direct-token")
req.Header.Set("X-Ds2-Internal-Token", "stream-secret")
req.Header.Set("Content-Type", "application/json")
rec := httptest.NewRecorder()
r.ServeHTTP(rec, req)
if rec.Code != http.StatusOK {
t.Fatalf("expected 200, got %d body=%s", rec.Code, rec.Body.String())
}
if len(ds.uploadCalls) != 1 {
t.Fatalf("expected 1 upload call, got %d", len(ds.uploadCalls))
}
var out map[string]any
if err := json.Unmarshal(rec.Body.Bytes(), &out); err != nil {
t.Fatalf("decode response failed: %v body=%s", err, rec.Body.String())
}
payload, _ := out["payload"].(map[string]any)
if payload == nil {
t.Fatalf("expected payload in prepare response, got %#v", out)
}
refIDs, _ := payload["ref_file_ids"].([]any)
if len(refIDs) != 1 || refIDs[0] != "file-inline-1" {
t.Fatalf("unexpected payload ref_file_ids: %#v", payload["ref_file_ids"])
}
}
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