fix: 补全 streaming message_delta 事件缺失的 input_tokens 和 cache 相关字段 (#2881)
当上游为 AWS Bedrock 时，message_delta 的 usage 可能缺少 input_tokens、 cache_creation_input_tokens、cache_read_input_tokens 等字段，导致与原生 Anthropic 格式不一致。从 message_start 积累的 claudeInfo 中补全这些字段后 重新序列化，确保客户端收到一致的 usage 格式。
This commit is contained in:
Thomas
305
relay/channel/claude/relay-claude_test.go
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305
relay/channel/claude/relay-claude_test.go
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package claude
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import (
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"strings"
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"testing"
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"github.com/QuantumNous/new-api/dto"
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)
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func TestFormatClaudeResponseInfo_MessageStart(t *testing.T) {
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claudeInfo := &ClaudeResponseInfo{
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Usage: &dto.Usage{},
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}
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claudeResponse := &dto.ClaudeResponse{
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Type: "message_start",
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Message: &dto.ClaudeMediaMessage{
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Id: "msg_123",
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Model: "claude-3-5-sonnet",
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Usage: &dto.ClaudeUsage{
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InputTokens: 100,
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OutputTokens: 1,
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CacheCreationInputTokens: 50,
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CacheReadInputTokens: 30,
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},
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},
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}
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ok := FormatClaudeResponseInfo(claudeResponse, nil, claudeInfo)
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if !ok {
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t.Fatal("expected true")
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}
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if claudeInfo.Usage.PromptTokens != 100 {
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t.Errorf("PromptTokens = %d, want 100", claudeInfo.Usage.PromptTokens)
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}
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if claudeInfo.Usage.PromptTokensDetails.CachedTokens != 30 {
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t.Errorf("CachedTokens = %d, want 30", claudeInfo.Usage.PromptTokensDetails.CachedTokens)
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}
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if claudeInfo.Usage.PromptTokensDetails.CachedCreationTokens != 50 {
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t.Errorf("CachedCreationTokens = %d, want 50", claudeInfo.Usage.PromptTokensDetails.CachedCreationTokens)
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}
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if claudeInfo.ResponseId != "msg_123" {
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t.Errorf("ResponseId = %s, want msg_123", claudeInfo.ResponseId)
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}
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if claudeInfo.Model != "claude-3-5-sonnet" {
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t.Errorf("Model = %s, want claude-3-5-sonnet", claudeInfo.Model)
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}
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}
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func TestFormatClaudeResponseInfo_MessageDelta_FullUsage(t *testing.T) {
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// message_start 先积累 usage
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claudeInfo := &ClaudeResponseInfo{
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Usage: &dto.Usage{
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PromptTokens: 100,
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PromptTokensDetails: dto.InputTokenDetails{
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CachedTokens: 30,
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CachedCreationTokens: 50,
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},
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CompletionTokens: 1,
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},
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}
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// message_delta 带完整 usage（原生 Anthropic 场景）
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claudeResponse := &dto.ClaudeResponse{
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Type: "message_delta",
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Usage: &dto.ClaudeUsage{
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InputTokens: 100,
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OutputTokens: 200,
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CacheCreationInputTokens: 50,
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CacheReadInputTokens: 30,
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},
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}
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ok := FormatClaudeResponseInfo(claudeResponse, nil, claudeInfo)
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if !ok {
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t.Fatal("expected true")
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}
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if claudeInfo.Usage.PromptTokens != 100 {
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t.Errorf("PromptTokens = %d, want 100", claudeInfo.Usage.PromptTokens)
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}
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if claudeInfo.Usage.CompletionTokens != 200 {
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t.Errorf("CompletionTokens = %d, want 200", claudeInfo.Usage.CompletionTokens)
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}
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if claudeInfo.Usage.TotalTokens != 300 {
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t.Errorf("TotalTokens = %d, want 300", claudeInfo.Usage.TotalTokens)
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}
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if !claudeInfo.Done {
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t.Error("expected Done = true")
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}
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}
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func TestFormatClaudeResponseInfo_MessageDelta_OnlyOutputTokens(t *testing.T) {
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// 模拟 Bedrock: message_start 已积累 usage
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claudeInfo := &ClaudeResponseInfo{
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Usage: &dto.Usage{
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PromptTokens: 100,
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PromptTokensDetails: dto.InputTokenDetails{
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CachedTokens: 30,
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CachedCreationTokens: 50,
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},
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CompletionTokens: 1,
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ClaudeCacheCreation5mTokens: 10,
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ClaudeCacheCreation1hTokens: 20,
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},
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}
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// Bedrock 的 message_delta 只有 output_tokens，缺少 input_tokens 和 cache 字段
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claudeResponse := &dto.ClaudeResponse{
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Type: "message_delta",
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Usage: &dto.ClaudeUsage{
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OutputTokens: 200,
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// InputTokens, CacheCreationInputTokens, CacheReadInputTokens 都是 0
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},
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}
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ok := FormatClaudeResponseInfo(claudeResponse, nil, claudeInfo)
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if !ok {
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t.Fatal("expected true")
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}
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// PromptTokens 应保持 message_start 的值（因为 message_delta 的 InputTokens=0，不更新）
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if claudeInfo.Usage.PromptTokens != 100 {
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t.Errorf("PromptTokens = %d, want 100", claudeInfo.Usage.PromptTokens)
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}
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if claudeInfo.Usage.CompletionTokens != 200 {
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t.Errorf("CompletionTokens = %d, want 200", claudeInfo.Usage.CompletionTokens)
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}
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if claudeInfo.Usage.TotalTokens != 300 {
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t.Errorf("TotalTokens = %d, want 300", claudeInfo.Usage.TotalTokens)
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}
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// cache 字段应保持 message_start 的值
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if claudeInfo.Usage.PromptTokensDetails.CachedTokens != 30 {
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t.Errorf("CachedTokens = %d, want 30", claudeInfo.Usage.PromptTokensDetails.CachedTokens)
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}
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if claudeInfo.Usage.PromptTokensDetails.CachedCreationTokens != 50 {
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t.Errorf("CachedCreationTokens = %d, want 50", claudeInfo.Usage.PromptTokensDetails.CachedCreationTokens)
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}
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if claudeInfo.Usage.ClaudeCacheCreation5mTokens != 10 {
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t.Errorf("ClaudeCacheCreation5mTokens = %d, want 10", claudeInfo.Usage.ClaudeCacheCreation5mTokens)
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}
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if claudeInfo.Usage.ClaudeCacheCreation1hTokens != 20 {
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t.Errorf("ClaudeCacheCreation1hTokens = %d, want 20", claudeInfo.Usage.ClaudeCacheCreation1hTokens)
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}
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if !claudeInfo.Done {
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t.Error("expected Done = true")
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}
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}
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func TestFormatClaudeResponseInfo_NilClaudeInfo(t *testing.T) {
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claudeResponse := &dto.ClaudeResponse{Type: "message_start"}
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ok := FormatClaudeResponseInfo(claudeResponse, nil, nil)
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if ok {
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t.Error("expected false for nil claudeInfo")
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}
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}
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func TestFormatClaudeResponseInfo_ContentBlockDelta(t *testing.T) {
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text := "hello"
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claudeInfo := &ClaudeResponseInfo{
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Usage: &dto.Usage{},
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ResponseText: strings.Builder{},
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}
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claudeResponse := &dto.ClaudeResponse{
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Type: "content_block_delta",
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Delta: &dto.ClaudeMediaMessage{
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Text: &text,
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},
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}
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ok := FormatClaudeResponseInfo(claudeResponse, nil, claudeInfo)
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if !ok {
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t.Fatal("expected true")
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}
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if claudeInfo.ResponseText.String() != "hello" {
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t.Errorf("ResponseText = %q, want %q", claudeInfo.ResponseText.String(), "hello")
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}
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}
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// TestEnrichMessageDeltaUsage 测试 message_delta 事件的 usage 补全逻辑
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// 这是修复 issue #2881 的核心逻辑：当上游（如 Bedrock）的 message_delta 缺少
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// input_tokens 和 cache 相关字段时，用 claudeInfo 中积累的数据补全
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func TestEnrichMessageDeltaUsage(t *testing.T) {
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tests := []struct {
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name string
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claudeInfo *ClaudeResponseInfo
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deltaUsage *dto.ClaudeUsage
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wantInput int
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wantCacheRead int
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wantCacheCreate int
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wantOutput int
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want5m int
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want1h int
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}{
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{
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name: "Bedrock: delta 只有 output_tokens，从 claudeInfo 补全其他字段",
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claudeInfo: &ClaudeResponseInfo{
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Usage: &dto.Usage{
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PromptTokens: 100,
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PromptTokensDetails: dto.InputTokenDetails{
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CachedTokens: 30,
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CachedCreationTokens: 50,
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},
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ClaudeCacheCreation5mTokens: 10,
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ClaudeCacheCreation1hTokens: 20,
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},
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},
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deltaUsage: &dto.ClaudeUsage{OutputTokens: 200},
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wantInput: 100,
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wantCacheRead: 30,
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wantCacheCreate: 50,
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wantOutput: 200,
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want5m: 10,
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want1h: 20,
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},
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{
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name: "原生 Anthropic: delta 已包含所有字段，不覆盖",
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claudeInfo: &ClaudeResponseInfo{
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Usage: &dto.Usage{
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PromptTokens: 100,
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PromptTokensDetails: dto.InputTokenDetails{
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CachedTokens: 30,
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CachedCreationTokens: 50,
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},
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},
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},
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deltaUsage: &dto.ClaudeUsage{
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InputTokens: 100,
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OutputTokens: 200,
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CacheReadInputTokens: 30,
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CacheCreationInputTokens: 50,
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},
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wantInput: 100,
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wantCacheRead: 30,
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wantCacheCreate: 50,
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wantOutput: 200,
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},
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{
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name: "delta usage 为 nil，创建并补全",
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claudeInfo: &ClaudeResponseInfo{
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Usage: &dto.Usage{
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PromptTokens: 80,
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PromptTokensDetails: dto.InputTokenDetails{
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CachedTokens: 20,
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CachedCreationTokens: 40,
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},
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},
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},
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deltaUsage: nil,
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wantInput: 80,
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wantCacheRead: 20,
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wantCacheCreate: 40,
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wantOutput: 0,
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},
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{
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name: "没有 cache 数据，不补全",
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claudeInfo: &ClaudeResponseInfo{
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Usage: &dto.Usage{
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PromptTokens: 100,
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},
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},
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deltaUsage: &dto.ClaudeUsage{OutputTokens: 50},
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wantInput: 100,
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wantCacheRead: 0,
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wantCacheCreate: 0,
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wantOutput: 50,
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},
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}
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for _, tt := range tests {
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t.Run(tt.name, func(t *testing.T) {
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claudeResponse := &dto.ClaudeResponse{
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Type: "message_delta",
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Usage: tt.deltaUsage,
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}
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// 模拟 HandleStreamResponseData 中 Claude 格式的补全逻辑
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enrichMessageDeltaUsage(claudeResponse, tt.claudeInfo)
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if claudeResponse.Usage == nil {
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t.Fatal("Usage should not be nil after enrichment")
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}
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if claudeResponse.Usage.InputTokens != tt.wantInput {
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t.Errorf("InputTokens = %d, want %d", claudeResponse.Usage.InputTokens, tt.wantInput)
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}
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if claudeResponse.Usage.CacheReadInputTokens != tt.wantCacheRead {
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t.Errorf("CacheReadInputTokens = %d, want %d", claudeResponse.Usage.CacheReadInputTokens, tt.wantCacheRead)
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}
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if claudeResponse.Usage.CacheCreationInputTokens != tt.wantCacheCreate {
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t.Errorf("CacheCreationInputTokens = %d, want %d", claudeResponse.Usage.CacheCreationInputTokens, tt.wantCacheCreate)
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}
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if claudeResponse.Usage.OutputTokens != tt.wantOutput {
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t.Errorf("OutputTokens = %d, want %d", claudeResponse.Usage.OutputTokens, tt.wantOutput)
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}
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if tt.want5m > 0 || tt.want1h > 0 {
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if claudeResponse.Usage.CacheCreation == nil {
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t.Fatal("CacheCreation should not be nil")
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}
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if claudeResponse.Usage.CacheCreation.Ephemeral5mInputTokens != tt.want5m {
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t.Errorf("Ephemeral5mInputTokens = %d, want %d", claudeResponse.Usage.CacheCreation.Ephemeral5mInputTokens, tt.want5m)
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}
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if claudeResponse.Usage.CacheCreation.Ephemeral1hInputTokens != tt.want1h {
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t.Errorf("Ephemeral1hInputTokens = %d, want %d", claudeResponse.Usage.CacheCreation.Ephemeral1hInputTokens, tt.want1h)
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}
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}
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})
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}
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}
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