mirror of
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### Summary Add token usage reporting for the StepFun model provider. Related to #17284. Co-authored-by: Haruko386 <tryeverypossible@163.com> Co-authored-by: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
956 lines
29 KiB
Go
956 lines
29 KiB
Go
//
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// Copyright 2026 The InfiniFlow Authors. All Rights Reserved.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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//
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package models
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import (
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"encoding/json"
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"io"
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"net/http"
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"net/http/httptest"
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"strings"
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"testing"
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)
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func newStepFunServer(t *testing.T, expectedPath string, handler func(t *testing.T, r *http.Request, body map[string]interface{}, w http.ResponseWriter)) *httptest.Server {
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t.Helper()
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return httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
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if r.URL.Path != expectedPath {
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t.Errorf("expected path=%s, got %s", expectedPath, r.URL.Path)
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return
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}
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if got := r.Header.Get("Authorization"); got != "Bearer test-key" {
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t.Errorf("expected Authorization=Bearer test-key, got %q", got)
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return
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}
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if r.Method == http.MethodPost {
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if got := r.Header.Get("Content-Type"); !strings.HasPrefix(got, "application/json") {
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t.Errorf("expected Content-Type to start with application/json, got %q", got)
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return
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}
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raw, err := io.ReadAll(r.Body)
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if err != nil {
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t.Errorf("read body: %v", err)
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return
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}
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var body map[string]interface{}
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if err := json.Unmarshal(raw, &body); err != nil {
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t.Errorf("unmarshal: %v\nraw=%s", err, string(raw))
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return
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}
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handler(t, r, body, w)
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return
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}
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handler(t, r, nil, w)
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}))
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}
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func newStepFunForTest(baseURL string) *StepFunModel {
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return NewStepFunModel(
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map[string]string{"default": baseURL},
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URLSuffix{Chat: "v1/chat/completions", Models: "v1/models"},
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)
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}
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func newStepFunSSEServer(t *testing.T, expectedPath, ssePayload string) *httptest.Server {
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t.Helper()
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return httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
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if r.Method != http.MethodPost {
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t.Errorf("expected POST, got %s", r.Method)
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return
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}
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if r.URL.Path != expectedPath {
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t.Errorf("expected path=%s, got %s", expectedPath, r.URL.Path)
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return
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}
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if got := r.Header.Get("Authorization"); got != "Bearer test-key" {
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t.Errorf("expected Authorization=Bearer test-key, got %q", got)
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return
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}
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if got := r.Header.Get("Content-Type"); !strings.HasPrefix(got, "application/json") {
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t.Errorf("expected Content-Type to start with application/json, got %q", got)
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return
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}
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w.Header().Set("Content-Type", "text/event-stream")
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_, _ = io.WriteString(w, ssePayload)
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}))
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}
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func TestStepFunName(t *testing.T) {
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if got := newStepFunForTest("http://unused").Name(); got != "stepfun" {
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t.Errorf("Name()=%q, want %q", got, "stepfun")
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}
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}
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func TestStepFunNewInstancePreservesConfig(t *testing.T) {
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model := NewStepFunModel(
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map[string]string{"default": "http://old.example"},
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URLSuffix{Chat: "chat", Models: "models"},
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)
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instance, ok := model.NewInstance(map[string]string{"default": "http://new.example"}).(*StepFunModel)
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if !ok {
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t.Fatalf("NewInstance type=%T, want *StepFunModel", instance)
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}
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if instance.baseModel.BaseURL["default"] != "http://new.example" {
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t.Errorf("BaseURL=%q", instance.baseModel.BaseURL["default"])
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}
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if instance.baseModel.URLSuffix.Chat != "chat" || instance.baseModel.URLSuffix.Models != "models" {
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t.Errorf("URLSuffix=%+v", instance.baseModel.URLSuffix)
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}
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}
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func TestStepFunChatParsesUsage(t *testing.T) {
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ctx := t.Context()
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srv := newStepFunServer(t, "/v1/chat/completions", func(t *testing.T, _ *http.Request, _ map[string]interface{}, w http.ResponseWriter) {
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_ = json.NewEncoder(w).Encode(map[string]interface{}{
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"id": "chatcmpl-abc123",
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"object": "chat.completion",
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"created": 1700000000,
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"model": "step-3.7-flash",
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"choices": []map[string]interface{}{{
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"index": 0,
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"message": map[string]interface{}{
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"role": "assistant",
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"content": "Hello!",
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},
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"finish_reason": "stop",
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}},
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"usage": map[string]interface{}{
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"prompt_tokens": 20,
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"completion_tokens": 15,
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"total_tokens": 35,
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},
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})
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})
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defer srv.Close()
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m := newStepFunForTest(srv.URL)
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apiKey := "test-key"
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resp, err := m.ChatWithMessages(ctx, "step-3.7-flash",
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[]Message{{Role: "user", Content: "ping"}},
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&APIConfig{ApiKey: &apiKey}, nil, nil)
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if err != nil {
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t.Fatalf("Chat: %v", err)
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}
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if resp.Usage == nil {
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t.Fatal("Usage must be non-nil")
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}
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if resp.Usage.PromptTokens != 20 {
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t.Errorf("PromptTokens=%d, want 20", resp.Usage.PromptTokens)
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}
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if resp.Usage.CompletionTokens != 15 {
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t.Errorf("CompletionTokens=%d, want 15", resp.Usage.CompletionTokens)
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}
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if resp.Usage.TotalTokens != 35 {
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t.Errorf("TotalTokens=%d, want 35", resp.Usage.TotalTokens)
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}
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}
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func TestStepFunChatParsesExtendedUsage(t *testing.T) {
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ctx := t.Context()
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srv := newStepFunServer(t, "/v1/chat/completions", func(t *testing.T, _ *http.Request, _ map[string]interface{}, w http.ResponseWriter) {
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_ = json.NewEncoder(w).Encode(map[string]interface{}{
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"id": "chatcmpl-ext",
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"object": "chat.completion",
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"created": 1700000000,
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"model": "step-3.7-flash",
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"choices": []map[string]interface{}{{
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"index": 0,
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"message": map[string]interface{}{
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"role": "assistant",
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"content": "Hello!",
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},
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"finish_reason": "stop",
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}},
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"usage": map[string]interface{}{
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"prompt_tokens": 83,
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"completion_tokens": 176,
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"total_tokens": 259,
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"prompt_tokens_details": map[string]interface{}{
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"cached_tokens": 10,
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},
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"completion_tokens_details": map[string]interface{}{
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"reasoning_tokens": 50,
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},
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},
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})
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})
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defer srv.Close()
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m := newStepFunForTest(srv.URL)
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apiKey := "test-key"
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resp, err := m.ChatWithMessages(ctx, "step-3.7-flash",
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[]Message{{Role: "user", Content: "ping"}},
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&APIConfig{ApiKey: &apiKey}, nil, nil)
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if err != nil {
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t.Fatalf("Chat: %v", err)
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}
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if resp.Usage == nil {
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t.Fatal("Usage must be non-nil")
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}
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if resp.Usage.PromptTokens != 83 {
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t.Errorf("PromptTokens=%d, want 83", resp.Usage.PromptTokens)
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}
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if resp.Usage.CompletionTokens != 176 {
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t.Errorf("CompletionTokens=%d, want 176", resp.Usage.CompletionTokens)
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}
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if resp.Usage.TotalTokens != 259 {
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t.Errorf("TotalTokens=%d, want 259", resp.Usage.TotalTokens)
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}
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}
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func TestStepFunChatFallsBackTotalTokens(t *testing.T) {
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ctx := t.Context()
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srv := newStepFunServer(t, "/v1/chat/completions", func(t *testing.T, _ *http.Request, _ map[string]interface{}, w http.ResponseWriter) {
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_ = json.NewEncoder(w).Encode(map[string]interface{}{
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"id": "chatcmpl-nototal",
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"object": "chat.completion",
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"created": 1700000000,
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"model": "step-3.7-flash",
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"choices": []map[string]interface{}{{
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"index": 0,
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"message": map[string]interface{}{
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"role": "assistant",
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"content": "Hi",
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},
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"finish_reason": "stop",
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}},
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"usage": map[string]interface{}{
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"prompt_tokens": 10,
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"completion_tokens": 5,
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},
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})
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})
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defer srv.Close()
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m := newStepFunForTest(srv.URL)
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apiKey := "test-key"
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resp, err := m.ChatWithMessages(ctx, "step-3.7-flash",
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[]Message{{Role: "user", Content: "ping"}},
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&APIConfig{ApiKey: &apiKey}, nil, nil)
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if err != nil {
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t.Fatalf("Chat: %v", err)
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}
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if resp.Usage == nil {
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t.Fatal("Usage must be non-nil")
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}
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if resp.Usage.TotalTokens != 15 {
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t.Errorf("TotalTokens=%d, want 15 (prompt+completion)", resp.Usage.TotalTokens)
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}
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}
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func TestStepFunChatNilUsageWhenAllZero(t *testing.T) {
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ctx := t.Context()
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srv := newStepFunServer(t, "/v1/chat/completions", func(t *testing.T, _ *http.Request, _ map[string]interface{}, w http.ResponseWriter) {
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_ = json.NewEncoder(w).Encode(map[string]interface{}{
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"id": "chatcmpl-zero",
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"object": "chat.completion",
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"created": 1700000000,
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"model": "step-3.7-flash",
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"choices": []map[string]interface{}{{
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"index": 0,
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"message": map[string]interface{}{
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"role": "assistant",
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"content": "Hello!",
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},
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"finish_reason": "stop",
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}},
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"usage": map[string]interface{}{
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"prompt_tokens": 0,
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"completion_tokens": 0,
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"total_tokens": 0,
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},
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})
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})
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defer srv.Close()
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m := newStepFunForTest(srv.URL)
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apiKey := "test-key"
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resp, err := m.ChatWithMessages(ctx, "step-3.7-flash",
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[]Message{{Role: "user", Content: "ping"}},
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&APIConfig{ApiKey: &apiKey}, nil, nil)
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if err != nil {
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t.Fatalf("Chat: %v", err)
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}
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if resp.Usage != nil {
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t.Errorf("Usage must be nil when all token counts are zero, got %#v", resp.Usage)
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}
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}
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func TestStepFunChatExtractsReasoning(t *testing.T) {
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ctx := t.Context()
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srv := newStepFunServer(t, "/v1/chat/completions", func(t *testing.T, _ *http.Request, _ map[string]interface{}, w http.ResponseWriter) {
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_ = json.NewEncoder(w).Encode(map[string]interface{}{
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"id": "chatcmpl-reasoning",
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"object": "chat.completion",
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"created": 1700000000,
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"model": "step-3.7-flash",
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"choices": []map[string]interface{}{{
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"index": 0,
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"message": map[string]interface{}{
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"role": "assistant",
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"content": "The answer is 42.",
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"reasoning": "I need to think about this...",
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},
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"finish_reason": "stop",
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}},
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"usage": map[string]interface{}{
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"prompt_tokens": 10,
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"completion_tokens": 20,
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"total_tokens": 30,
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},
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})
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})
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defer srv.Close()
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m := newStepFunForTest(srv.URL)
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apiKey := "test-key"
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resp, err := m.ChatWithMessages(ctx, "step-3.7-flash",
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[]Message{{Role: "user", Content: "what is the meaning of life"}},
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&APIConfig{ApiKey: &apiKey}, nil, nil)
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if err != nil {
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t.Fatalf("Chat: %v", err)
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}
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if resp.ReasonContent == nil {
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t.Fatal("ReasonContent must be non-nil")
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}
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if *resp.ReasonContent != "I need to think about this..." {
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t.Errorf("ReasonContent=%q, want 'I need to think about this...'", *resp.ReasonContent)
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}
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}
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func TestStepFunChatFallsBackToReasoningContent(t *testing.T) {
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ctx := t.Context()
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srv := newStepFunServer(t, "/v1/chat/completions", func(t *testing.T, _ *http.Request, _ map[string]interface{}, w http.ResponseWriter) {
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_ = json.NewEncoder(w).Encode(map[string]interface{}{
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"id": "chatcmpl-dscompat",
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"object": "chat.completion",
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"created": 1700000000,
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"model": "step-3.7-flash",
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"choices": []map[string]interface{}{{
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"index": 0,
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"message": map[string]interface{}{
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"role": "assistant",
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"content": "Done.",
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"reasoning_content": "DeepSeek-compatible reasoning field.",
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},
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"finish_reason": "stop",
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}},
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"usage": map[string]interface{}{
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"prompt_tokens": 5,
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"completion_tokens": 10,
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"total_tokens": 15,
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},
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})
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})
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defer srv.Close()
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m := newStepFunForTest(srv.URL)
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apiKey := "test-key"
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resp, err := m.ChatWithMessages(ctx, "step-3.7-flash",
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[]Message{{Role: "user", Content: "x"}},
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&APIConfig{ApiKey: &apiKey}, nil, nil)
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if err != nil {
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t.Fatalf("Chat: %v", err)
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}
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if resp.ReasonContent == nil {
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t.Fatal("ReasonContent must be non-nil")
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}
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if *resp.ReasonContent != "DeepSeek-compatible reasoning field." {
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t.Errorf("ReasonContent=%q, want 'DeepSeek-compatible reasoning field.'", *resp.ReasonContent)
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}
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}
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func TestStepFunChatAcceptsReasoningOnlyResponse(t *testing.T) {
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ctx := t.Context()
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srv := newStepFunServer(t, "/v1/chat/completions", func(t *testing.T, _ *http.Request, _ map[string]interface{}, w http.ResponseWriter) {
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_ = json.NewEncoder(w).Encode(map[string]interface{}{
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"id": "cmpl_reasoning_only",
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"object": "chat.completion",
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"model": "step-3.7-flash",
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"choices": []map[string]interface{}{{
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"index": 0,
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"message": map[string]interface{}{
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"role": "assistant",
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"content": nil,
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"reasoning": "The answer is 4.",
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},
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"finish_reason": "stop",
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}},
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"usage": map[string]interface{}{
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"prompt_tokens": 5,
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"completion_tokens": 10,
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"total_tokens": 15,
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},
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})
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})
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defer srv.Close()
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m := newStepFunForTest(srv.URL)
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apiKey := "test-key"
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resp, err := m.ChatWithMessages(ctx, "step-3.7-flash",
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[]Message{{Role: "user", Content: "what is 2+2"}},
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&APIConfig{ApiKey: &apiKey}, nil, nil)
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if err != nil {
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t.Fatalf("Chat: %v (should not error on reasoning-only response)", err)
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}
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if resp.Answer == nil {
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t.Error("Answer must be non-nil")
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} else if *resp.Answer != "" {
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t.Errorf("Answer=%q, want empty string", *resp.Answer)
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}
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if resp.ReasonContent == nil {
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t.Error("ReasonContent must be non-nil")
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} else if *resp.ReasonContent != "The answer is 4." {
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t.Errorf("ReasonContent=%q, want 'The answer is 4.'", *resp.ReasonContent)
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}
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}
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func TestStepFunStreamParsesUsage(t *testing.T) {
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ctx := t.Context()
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srv := newStepFunSSEServer(t, "/v1/chat/completions",
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`data: {"choices":[{"index":0,"delta":{"content":"hi"}}]}`+"\n"+
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`data: {"choices":[{"index":0,"delta":{},"finish_reason":"stop"}],"usage":{"prompt_tokens":10,"completion_tokens":2,"total_tokens":12}}`+"\n"+
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`data: [DONE]`+"\n",
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)
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defer srv.Close()
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m := newStepFunForTest(srv.URL)
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apiKey := "test-key"
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chatConfig := &ChatConfig{}
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err := m.ChatStreamlyWithSender(ctx, "step-3.7-flash",
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[]Message{{Role: "user", Content: "x"}},
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&APIConfig{ApiKey: &apiKey}, chatConfig, nil,
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func(*string, *string) error { return nil })
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if err != nil {
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t.Fatalf("stream: %v", err)
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}
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if chatConfig.UsageResult == nil {
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t.Fatal("UsageResult must be non-nil after stream with usage event")
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}
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if chatConfig.UsageResult.PromptTokens != 10 || chatConfig.UsageResult.CompletionTokens != 2 || chatConfig.UsageResult.TotalTokens != 12 {
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t.Errorf("UsageResult=%#v, want prompt=10 completion=2 total=12", chatConfig.UsageResult)
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}
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}
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func TestStepFunStreamNullUsage(t *testing.T) {
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ctx := t.Context()
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// StepFun may send usage: null on intermediate chunks.
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srv := newStepFunSSEServer(t, "/v1/chat/completions",
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`data: {"choices":[{"index":0,"delta":{"content":"hi"}}],"usage":null}`+"\n"+
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`data: {"choices":[{"index":0,"delta":{},"finish_reason":"stop"}],"usage":{"prompt_tokens":8,"completion_tokens":2,"total_tokens":10}}`+"\n"+
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`data: [DONE]`+"\n",
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)
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defer srv.Close()
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m := newStepFunForTest(srv.URL)
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apiKey := "test-key"
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chatConfig := &ChatConfig{}
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err := m.ChatStreamlyWithSender(ctx, "step-3.7-flash",
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[]Message{{Role: "user", Content: "x"}},
|
|
&APIConfig{ApiKey: &apiKey}, chatConfig, nil,
|
|
func(*string, *string) error { return nil })
|
|
if err != nil {
|
|
t.Fatalf("stream: %v", err)
|
|
}
|
|
if chatConfig.UsageResult == nil {
|
|
t.Fatal("UsageResult must be non-nil")
|
|
}
|
|
if chatConfig.UsageResult.TotalTokens != 10 {
|
|
t.Errorf("UsageResult=%#v, want total=10", chatConfig.UsageResult)
|
|
}
|
|
}
|
|
|
|
func TestStepFunStreamExtractsReasoning(t *testing.T) {
|
|
ctx := t.Context()
|
|
srv := newStepFunSSEServer(t, "/v1/chat/completions",
|
|
`data: {"choices":[{"index":0,"delta":{"role":"assistant"}}]}`+"\n"+
|
|
`data: {"choices":[{"index":0,"delta":{"reasoning":"think. "}}]}`+"\n"+
|
|
`data: {"choices":[{"index":0,"delta":{"reasoning":"done."}}]}`+"\n"+
|
|
`data: {"choices":[{"index":0,"delta":{"content":"final answer"},"finish_reason":"stop"}]}`+"\n"+
|
|
`data: [DONE]`+"\n",
|
|
)
|
|
defer srv.Close()
|
|
|
|
m := newStepFunForTest(srv.URL)
|
|
apiKey := "test-key"
|
|
var content, reasoning []string
|
|
err := m.ChatStreamlyWithSender(ctx, "step-3.7-flash",
|
|
[]Message{{Role: "user", Content: "x"}},
|
|
&APIConfig{ApiKey: &apiKey}, nil, nil,
|
|
func(c *string, r *string) error {
|
|
if c != nil && r != nil {
|
|
t.Errorf("sender called with both args non-nil")
|
|
}
|
|
if r != nil && *r != "" {
|
|
reasoning = append(reasoning, *r)
|
|
}
|
|
if c != nil && *c != "" && *c != "[DONE]" {
|
|
content = append(content, *c)
|
|
}
|
|
return nil
|
|
})
|
|
if err != nil {
|
|
t.Fatalf("stream: %v", err)
|
|
}
|
|
if got := strings.Join(reasoning, ""); got != "think. done." {
|
|
t.Errorf("reasoning=%q", got)
|
|
}
|
|
if got := strings.Join(content, ""); got != "final answer" {
|
|
t.Errorf("content=%q", got)
|
|
}
|
|
}
|
|
|
|
func TestStepFunStreamFallsBackToReasoningContent(t *testing.T) {
|
|
ctx := t.Context()
|
|
srv := newStepFunSSEServer(t, "/v1/chat/completions",
|
|
`data: {"choices":[{"index":0,"delta":{"reasoning_content":"ds-style reasoning"}}]}`+"\n"+
|
|
`data: {"choices":[{"index":0,"delta":{"content":"ok"},"finish_reason":"stop"}]}`+"\n"+
|
|
`data: [DONE]`+"\n",
|
|
)
|
|
defer srv.Close()
|
|
|
|
m := newStepFunForTest(srv.URL)
|
|
apiKey := "test-key"
|
|
var reasoning []string
|
|
err := m.ChatStreamlyWithSender(ctx, "step-3.7-flash",
|
|
[]Message{{Role: "user", Content: "x"}},
|
|
&APIConfig{ApiKey: &apiKey}, nil, nil,
|
|
func(c *string, r *string) error {
|
|
if r != nil && *r != "" {
|
|
reasoning = append(reasoning, *r)
|
|
}
|
|
_ = c
|
|
return nil
|
|
})
|
|
if err != nil {
|
|
t.Fatalf("stream: %v", err)
|
|
}
|
|
if got := strings.Join(reasoning, ""); got != "ds-style reasoning" {
|
|
t.Errorf("reasoning=%q", got)
|
|
}
|
|
}
|
|
|
|
func TestStepFunStreamHappyPath(t *testing.T) {
|
|
ctx := t.Context()
|
|
srv := newStepFunSSEServer(t, "/v1/chat/completions",
|
|
`data: {"choices":[{"index":0,"delta":{"role":"assistant"}}]}`+"\n"+
|
|
`data: {"choices":[{"index":0,"delta":{"content":"Hello"}}]}`+"\n"+
|
|
`data: {"choices":[{"index":0,"delta":{"content":" world"},"finish_reason":"stop"}]}`+"\n"+
|
|
`data: [DONE]`+"\n",
|
|
)
|
|
defer srv.Close()
|
|
|
|
m := newStepFunForTest(srv.URL)
|
|
apiKey := "test-key"
|
|
var chunks []string
|
|
var sawDone bool
|
|
err := m.ChatStreamlyWithSender(ctx, "step-3.7-flash",
|
|
[]Message{{Role: "user", Content: "hi"}},
|
|
&APIConfig{ApiKey: &apiKey}, nil, nil,
|
|
func(c *string, _ *string) error {
|
|
if c == nil {
|
|
return nil
|
|
}
|
|
if *c == "[DONE]" {
|
|
sawDone = true
|
|
return nil
|
|
}
|
|
chunks = append(chunks, *c)
|
|
return nil
|
|
})
|
|
if err != nil {
|
|
t.Fatalf("stream: %v", err)
|
|
}
|
|
if strings.Join(chunks, "") != "Hello world" {
|
|
t.Errorf("content=%v", chunks)
|
|
}
|
|
if !sawDone {
|
|
t.Error("expected [DONE] sentinel")
|
|
}
|
|
}
|
|
|
|
func TestStepFunStreamRequiresSender(t *testing.T) {
|
|
ctx := t.Context()
|
|
m := newStepFunForTest("http://unused")
|
|
apiKey := "test-key"
|
|
err := m.ChatStreamlyWithSender(ctx, "step-3.7-flash",
|
|
[]Message{{Role: "user", Content: "x"}},
|
|
&APIConfig{ApiKey: &apiKey}, nil, nil, nil)
|
|
if err == nil || !strings.Contains(err.Error(), "sender is required") {
|
|
t.Errorf("expected sender-required error, got %v", err)
|
|
}
|
|
}
|
|
|
|
func TestStepFunStreamFailsWithoutTerminal(t *testing.T) {
|
|
ctx := t.Context()
|
|
srv := newStepFunSSEServer(t, "/v1/chat/completions",
|
|
`data: {"choices":[{"delta":{"content":"half"}}]}`+"\n",
|
|
)
|
|
defer srv.Close()
|
|
|
|
m := newStepFunForTest(srv.URL)
|
|
apiKey := "test-key"
|
|
err := m.ChatStreamlyWithSender(ctx, "step-3.7-flash",
|
|
[]Message{{Role: "user", Content: "x"}},
|
|
&APIConfig{ApiKey: &apiKey}, nil, nil,
|
|
func(*string, *string) error { return nil })
|
|
if err == nil || !strings.Contains(err.Error(), "stream ended before") {
|
|
t.Errorf("expected truncation error, got %v", err)
|
|
}
|
|
}
|
|
|
|
func TestStepFunChatRequiresAPIKey(t *testing.T) {
|
|
ctx := t.Context()
|
|
m := newStepFunForTest("http://unused")
|
|
_, err := m.ChatWithMessages(ctx, "step-3.7-flash",
|
|
[]Message{{Role: "user", Content: "x"}},
|
|
&APIConfig{}, nil, nil)
|
|
if err == nil || !strings.Contains(err.Error(), "api key is required") {
|
|
t.Errorf("expected api-key error, got %v", err)
|
|
}
|
|
}
|
|
|
|
func TestStepFunChatRequiresMessages(t *testing.T) {
|
|
ctx := t.Context()
|
|
m := newStepFunForTest("http://unused")
|
|
apiKey := "test-key"
|
|
_, err := m.ChatWithMessages(ctx, "step-3.7-flash", nil, &APIConfig{ApiKey: &apiKey}, nil, nil)
|
|
if err == nil || !strings.Contains(err.Error(), "messages is empty") {
|
|
t.Errorf("expected messages-empty error, got %v", err)
|
|
}
|
|
}
|
|
|
|
func TestStepFunChatRejectsHTTPError(t *testing.T) {
|
|
ctx := t.Context()
|
|
srv := newStepFunServer(t, "/v1/chat/completions", func(t *testing.T, _ *http.Request, _ map[string]interface{}, w http.ResponseWriter) {
|
|
w.WriteHeader(http.StatusUnauthorized)
|
|
_, _ = w.Write([]byte(`{"error":"unauthorized"}`))
|
|
})
|
|
defer srv.Close()
|
|
|
|
m := newStepFunForTest(srv.URL)
|
|
apiKey := "test-key"
|
|
_, err := m.ChatWithMessages(ctx, "step-3.7-flash",
|
|
[]Message{{Role: "user", Content: "x"}},
|
|
&APIConfig{ApiKey: &apiKey}, nil, nil)
|
|
if err == nil || !strings.Contains(err.Error(), "401") {
|
|
t.Errorf("expected 401 propagated, got %v", err)
|
|
}
|
|
}
|
|
|
|
func TestStepFunChatHappyPath(t *testing.T) {
|
|
ctx := t.Context()
|
|
srv := newStepFunServer(t, "/v1/chat/completions", func(t *testing.T, _ *http.Request, body map[string]interface{}, w http.ResponseWriter) {
|
|
if body["model"] != "step-3.7-flash" {
|
|
t.Errorf("model=%v", body["model"])
|
|
}
|
|
if body["stream"] != false {
|
|
t.Errorf("stream=%v want false", body["stream"])
|
|
}
|
|
_ = json.NewEncoder(w).Encode(map[string]interface{}{
|
|
"id": "chatcmpl-ok",
|
|
"object": "chat.completion",
|
|
"created": 1700000000,
|
|
"model": "step-3.7-flash",
|
|
"choices": []map[string]interface{}{{
|
|
"index": 0,
|
|
"message": map[string]interface{}{
|
|
"role": "assistant",
|
|
"content": "pong",
|
|
},
|
|
"finish_reason": "stop",
|
|
}},
|
|
"usage": map[string]interface{}{
|
|
"prompt_tokens": 5,
|
|
"completion_tokens": 3,
|
|
"total_tokens": 8,
|
|
},
|
|
})
|
|
})
|
|
defer srv.Close()
|
|
|
|
m := newStepFunForTest(srv.URL)
|
|
apiKey := "test-key"
|
|
resp, err := m.ChatWithMessages(ctx, "step-3.7-flash",
|
|
[]Message{{Role: "user", Content: "ping"}},
|
|
&APIConfig{ApiKey: &apiKey}, nil, nil)
|
|
if err != nil {
|
|
t.Fatalf("Chat: %v", err)
|
|
}
|
|
if resp.Answer == nil || resp.ReasonContent == nil {
|
|
t.Fatalf("Answer/ReasonContent must be non-nil pointers, got Answer=%v ReasonContent=%v", resp.Answer, resp.ReasonContent)
|
|
}
|
|
if *resp.Answer != "pong" {
|
|
t.Errorf("answer=%q want pong", *resp.Answer)
|
|
}
|
|
if *resp.ReasonContent != "" {
|
|
t.Errorf("ReasonContent=%q want empty", *resp.ReasonContent)
|
|
}
|
|
}
|
|
|
|
func TestStepFunChatSupportsToolCalls(t *testing.T) {
|
|
ctx := t.Context()
|
|
var requestBody map[string]interface{}
|
|
srv := newStepFunServer(t, "/v1/chat/completions", func(t *testing.T, _ *http.Request, body map[string]interface{}, w http.ResponseWriter) {
|
|
requestBody = body
|
|
_ = json.NewEncoder(w).Encode(map[string]interface{}{
|
|
"id": "chatcmpl-tools",
|
|
"object": "chat.completion",
|
|
"created": 1700000000,
|
|
"model": "step-3.7-flash",
|
|
"choices": []map[string]interface{}{{
|
|
"index": 0,
|
|
"message": map[string]interface{}{
|
|
"role": "assistant",
|
|
"content": nil,
|
|
"tool_calls": []map[string]interface{}{{
|
|
"id": "call-1",
|
|
"type": "function",
|
|
"function": map[string]interface{}{
|
|
"name": "get_weather",
|
|
"arguments": `{"city":"Beijing"}`,
|
|
},
|
|
}},
|
|
},
|
|
"finish_reason": "tool_calls",
|
|
}},
|
|
"usage": map[string]interface{}{
|
|
"prompt_tokens": 10,
|
|
"completion_tokens": 5,
|
|
"total_tokens": 15,
|
|
},
|
|
})
|
|
})
|
|
defer srv.Close()
|
|
|
|
m := newStepFunForTest(srv.URL)
|
|
apiKey := "test-key"
|
|
toolChoice := "auto"
|
|
resp, err := m.ChatWithMessages(ctx, "step-3.7-flash",
|
|
[]Message{{Role: "user", Content: "what's the weather in Beijing"}},
|
|
&APIConfig{ApiKey: &apiKey},
|
|
&ChatConfig{
|
|
Tools: []map[string]interface{}{
|
|
{
|
|
"type": "function",
|
|
"function": map[string]interface{}{
|
|
"name": "get_weather",
|
|
"description": "Get current weather",
|
|
},
|
|
},
|
|
},
|
|
ToolChoice: &toolChoice,
|
|
},
|
|
nil,
|
|
)
|
|
if err != nil {
|
|
t.Fatalf("ChatWithMessages: %v", err)
|
|
}
|
|
if requestBody["tool_choice"] != "auto" {
|
|
t.Fatalf("tool_choice=%#v, want auto", requestBody["tool_choice"])
|
|
}
|
|
if _, ok := requestBody["tools"].([]interface{}); !ok {
|
|
t.Fatalf("tools missing or wrong type: %#v", requestBody["tools"])
|
|
}
|
|
if resp.Answer == nil || *resp.Answer != "" {
|
|
t.Fatalf("Answer=%#v, want empty string for tool-call response", resp.Answer)
|
|
}
|
|
if len(resp.ToolCalls) != 1 {
|
|
t.Fatalf("ToolCalls len=%d, want 1", len(resp.ToolCalls))
|
|
}
|
|
fn, _ := resp.ToolCalls[0]["function"].(map[string]interface{})
|
|
if fn["name"] != "get_weather" {
|
|
t.Fatalf("tool call function=%#v, want get_weather", fn["name"])
|
|
}
|
|
if resp.Usage == nil || resp.Usage.TotalTokens != 15 {
|
|
t.Fatalf("Usage=%#v, want total tokens 15", resp.Usage)
|
|
}
|
|
}
|
|
|
|
func TestStepFunStreamDoesNotSendDoneAfterScannerError(t *testing.T) {
|
|
ctx := t.Context()
|
|
srv := newStepFunSSEServer(t, "/v1/chat/completions",
|
|
`data: `+strings.Repeat("x", 1024*1024+1)+"\n",
|
|
)
|
|
defer srv.Close()
|
|
|
|
m := newStepFunForTest(srv.URL)
|
|
apiKey := "test-key"
|
|
var sawDone bool
|
|
err := m.ChatStreamlyWithSender(ctx, "step-3.7-flash",
|
|
[]Message{{Role: "user", Content: "ping"}},
|
|
&APIConfig{ApiKey: &apiKey}, nil, nil,
|
|
func(answer, _ *string) error {
|
|
if answer != nil && *answer == "[DONE]" {
|
|
sawDone = true
|
|
}
|
|
return nil
|
|
})
|
|
if err == nil {
|
|
t.Fatal("expected scanner error")
|
|
}
|
|
if sawDone {
|
|
t.Fatal("sender received [DONE] after scanner error")
|
|
}
|
|
}
|
|
|
|
func TestStepFunChatRejectsMalformedResponse(t *testing.T) {
|
|
ctx := t.Context()
|
|
srv := newStepFunServer(t, "/v1/chat/completions", func(t *testing.T, _ *http.Request, _ map[string]interface{}, w http.ResponseWriter) {
|
|
_ = json.NewEncoder(w).Encode(map[string]interface{}{
|
|
"id": "chatcmpl-bad",
|
|
"object": "chat.completion",
|
|
"created": 1700000000,
|
|
"model": "step-3.7-flash",
|
|
// No choices at all.
|
|
})
|
|
})
|
|
defer srv.Close()
|
|
|
|
m := newStepFunForTest(srv.URL)
|
|
apiKey := "test-key"
|
|
_, err := m.ChatWithMessages(ctx, "step-3.7-flash",
|
|
[]Message{{Role: "user", Content: "x"}},
|
|
&APIConfig{ApiKey: &apiKey}, nil, nil)
|
|
if err == nil || !strings.Contains(err.Error(), "no choices") {
|
|
t.Errorf("expected no-choices error, got %v", err)
|
|
}
|
|
}
|
|
|
|
func TestStepFunStreamRejectsMalformedFrame(t *testing.T) {
|
|
ctx := t.Context()
|
|
srv := newStepFunSSEServer(t, "/v1/chat/completions",
|
|
`data: {"choices":[{"index":0,"delta":{"content":"ok"}}]}`+"\n"+
|
|
`data: {this is not valid json}`+"\n",
|
|
)
|
|
defer srv.Close()
|
|
|
|
m := newStepFunForTest(srv.URL)
|
|
apiKey := "test-key"
|
|
err := m.ChatStreamlyWithSender(ctx, "step-3.7-flash",
|
|
[]Message{{Role: "user", Content: "x"}},
|
|
&APIConfig{ApiKey: &apiKey}, nil, nil,
|
|
func(*string, *string) error { return nil })
|
|
if err == nil || !strings.Contains(err.Error(), "invalid SSE event") {
|
|
t.Errorf("expected invalid-SSE error, got %v", err)
|
|
}
|
|
}
|
|
|
|
func TestStepFunListModelsAndCheckConnection(t *testing.T) {
|
|
ctx := t.Context()
|
|
srv := newStepFunServer(t, "/v1/models", func(t *testing.T, r *http.Request, body map[string]interface{}, w http.ResponseWriter) {
|
|
if r.Method != http.MethodGet {
|
|
t.Errorf("expected GET, got %s", r.Method)
|
|
}
|
|
if body != nil {
|
|
t.Errorf("GET /models should not send a JSON body: %v", body)
|
|
}
|
|
_ = json.NewEncoder(w).Encode(map[string]interface{}{
|
|
"object": "list",
|
|
"data": []map[string]interface{}{
|
|
{"id": "step-3.7-flash"},
|
|
{"id": "step-2"},
|
|
},
|
|
})
|
|
})
|
|
defer srv.Close()
|
|
|
|
m := newStepFunForTest(srv.URL)
|
|
apiKey := "test-key"
|
|
|
|
models, err := m.ListModels(ctx, &APIConfig{ApiKey: &apiKey})
|
|
if err != nil {
|
|
t.Fatalf("ListModels: %v", err)
|
|
}
|
|
if len(models) != 2 {
|
|
t.Errorf("ListModels returned %d models, want 2", len(models))
|
|
}
|
|
|
|
if err := m.CheckConnection(ctx, &APIConfig{ApiKey: &apiKey}); err != nil {
|
|
t.Errorf("CheckConnection: %v", err)
|
|
}
|
|
}
|
|
|
|
func TestStepFunListModelsRejectsInvalidResponses(t *testing.T) {
|
|
ctx := t.Context()
|
|
srv := newStepFunServer(t, "/v1/models", func(t *testing.T, _ *http.Request, _ map[string]interface{}, w http.ResponseWriter) {
|
|
_ = json.NewEncoder(w).Encode(map[string]interface{}{
|
|
"object": "list",
|
|
// Missing "data" field.
|
|
})
|
|
})
|
|
defer srv.Close()
|
|
|
|
m := newStepFunForTest(srv.URL)
|
|
apiKey := "test-key"
|
|
_, err := m.ListModels(ctx, &APIConfig{ApiKey: &apiKey})
|
|
if err == nil || !strings.Contains(err.Error(), "invalid models list format") {
|
|
t.Errorf("expected invalid-models error, got %v", err)
|
|
}
|
|
}
|
|
|
|
func TestStepFunListModelsRequiresAPIKey(t *testing.T) {
|
|
ctx := t.Context()
|
|
m := newStepFunForTest("http://unused")
|
|
_, err := m.ListModels(ctx, &APIConfig{})
|
|
if err == nil || !strings.Contains(err.Error(), "api key is required") {
|
|
t.Errorf("expected api-key error, got %v", err)
|
|
}
|
|
}
|
|
|
|
func TestStepFunEmbedReturnsNotImplemented(t *testing.T) {
|
|
ctx := t.Context()
|
|
m := newStepFunForTest("http://unused")
|
|
model := "x"
|
|
_, err := m.Embed(ctx, &model, []string{"a"}, &APIConfig{}, nil, nil)
|
|
if err == nil || !strings.Contains(err.Error(), "not implemented") {
|
|
t.Errorf("Embed: want 'not implemented', got %v", err)
|
|
}
|
|
}
|
|
|
|
func TestStepFunRerankReturnsNoSuchMethod(t *testing.T) {
|
|
ctx := t.Context()
|
|
m := newStepFunForTest("http://unused")
|
|
model := "x"
|
|
_, err := m.Rerank(ctx, &model, "q", []string{"a"}, &APIConfig{}, &RerankConfig{TopN: 1}, nil)
|
|
if err == nil || !strings.Contains(err.Error(), "no such method") {
|
|
t.Errorf("Rerank: want 'no such method', got %v", err)
|
|
}
|
|
}
|
|
|
|
func TestStepFunBalanceReturnsNoSuchMethod(t *testing.T) {
|
|
ctx := t.Context()
|
|
m := newStepFunForTest("http://unused")
|
|
_, err := m.Balance(ctx, &APIConfig{})
|
|
if err == nil || !strings.Contains(err.Error(), "no such method") {
|
|
t.Errorf("Balance: want 'no such method', got %v", err)
|
|
}
|
|
}
|
|
|
|
func TestStepFunAudioOCRReturnNoSuchMethod(t *testing.T) {
|
|
ctx := t.Context()
|
|
m := newStepFunForTest("http://unused")
|
|
model := "x"
|
|
if _, err := m.TranscribeAudio(ctx, &model, &model, &APIConfig{}, nil, nil); err == nil || !strings.Contains(err.Error(), "no such method") {
|
|
t.Errorf("TranscribeAudio: want 'no such method', got %v", err)
|
|
}
|
|
if _, err := m.OCRFile(ctx, &model, nil, &model, &APIConfig{}, nil, nil); err == nil || !strings.Contains(err.Error(), "no such method") {
|
|
t.Errorf("OCRFile: want 'no such method', got %v", err)
|
|
}
|
|
}
|