fix: patch message_delta usage via gjson/sjson and skip on passthrough

relay/channel/claude/relay_claude_test.go

@@ -0,0 +1,175 @@
+package claude
+
+import (
+	"strings"
+	"testing"
+
+	"github.com/QuantumNous/new-api/dto"
+)
+
+func TestFormatClaudeResponseInfo_MessageStart(t *testing.T) {
+	claudeInfo := &ClaudeResponseInfo{
+		Usage: &dto.Usage{},
+	}
+	claudeResponse := &dto.ClaudeResponse{
+		Type: "message_start",
+		Message: &dto.ClaudeMediaMessage{
+			Id:    "msg_123",
+			Model: "claude-3-5-sonnet",
+			Usage: &dto.ClaudeUsage{
+				InputTokens:              100,
+				OutputTokens:             1,
+				CacheCreationInputTokens: 50,
+				CacheReadInputTokens:     30,
+			},
+		},
+	}
+
+	ok := FormatClaudeResponseInfo(claudeResponse, nil, claudeInfo)
+	if !ok {
+		t.Fatal("expected true")
+	}
+	if claudeInfo.Usage.PromptTokens != 100 {
+		t.Errorf("PromptTokens = %d, want 100", claudeInfo.Usage.PromptTokens)
+	}
+	if claudeInfo.Usage.PromptTokensDetails.CachedTokens != 30 {
+		t.Errorf("CachedTokens = %d, want 30", claudeInfo.Usage.PromptTokensDetails.CachedTokens)
+	}
+	if claudeInfo.Usage.PromptTokensDetails.CachedCreationTokens != 50 {
+		t.Errorf("CachedCreationTokens = %d, want 50", claudeInfo.Usage.PromptTokensDetails.CachedCreationTokens)
+	}
+	if claudeInfo.ResponseId != "msg_123" {
+		t.Errorf("ResponseId = %s, want msg_123", claudeInfo.ResponseId)
+	}
+	if claudeInfo.Model != "claude-3-5-sonnet" {
+		t.Errorf("Model = %s, want claude-3-5-sonnet", claudeInfo.Model)
+	}
+}
+
+func TestFormatClaudeResponseInfo_MessageDelta_FullUsage(t *testing.T) {
+	// message_start 先积累 usage
+	claudeInfo := &ClaudeResponseInfo{
+		Usage: &dto.Usage{
+			PromptTokens: 100,
+			PromptTokensDetails: dto.InputTokenDetails{
+				CachedTokens:         30,
+				CachedCreationTokens: 50,
+			},
+			CompletionTokens: 1,
+		},
+	}
+
+	// message_delta 带完整 usage（原生 Anthropic 场景）
+	claudeResponse := &dto.ClaudeResponse{
+		Type: "message_delta",
+		Usage: &dto.ClaudeUsage{
+			InputTokens:              100,
+			OutputTokens:             200,
+			CacheCreationInputTokens: 50,
+			CacheReadInputTokens:     30,
+		},
+	}
+
+	ok := FormatClaudeResponseInfo(claudeResponse, nil, claudeInfo)
+	if !ok {
+		t.Fatal("expected true")
+	}
+	if claudeInfo.Usage.PromptTokens != 100 {
+		t.Errorf("PromptTokens = %d, want 100", claudeInfo.Usage.PromptTokens)
+	}
+	if claudeInfo.Usage.CompletionTokens != 200 {
+		t.Errorf("CompletionTokens = %d, want 200", claudeInfo.Usage.CompletionTokens)
+	}
+	if claudeInfo.Usage.TotalTokens != 300 {
+		t.Errorf("TotalTokens = %d, want 300", claudeInfo.Usage.TotalTokens)
+	}
+	if !claudeInfo.Done {
+		t.Error("expected Done = true")
+	}
+}
+
+func TestFormatClaudeResponseInfo_MessageDelta_OnlyOutputTokens(t *testing.T) {
+	// 模拟 Bedrock: message_start 已积累 usage
+	claudeInfo := &ClaudeResponseInfo{
+		Usage: &dto.Usage{
+			PromptTokens: 100,
+			PromptTokensDetails: dto.InputTokenDetails{
+				CachedTokens:         30,
+				CachedCreationTokens: 50,
+			},
+			CompletionTokens:            1,
+			ClaudeCacheCreation5mTokens: 10,
+			ClaudeCacheCreation1hTokens: 20,
+		},
+	}
+
+	// Bedrock 的 message_delta 只有 output_tokens，缺少 input_tokens 和 cache 字段
+	claudeResponse := &dto.ClaudeResponse{
+		Type: "message_delta",
+		Usage: &dto.ClaudeUsage{
+			OutputTokens: 200,
+			// InputTokens, CacheCreationInputTokens, CacheReadInputTokens 都是 0
+		},
+	}
+
+	ok := FormatClaudeResponseInfo(claudeResponse, nil, claudeInfo)
+	if !ok {
+		t.Fatal("expected true")
+	}
+	// PromptTokens 应保持 message_start 的值（因为 message_delta 的 InputTokens=0，不更新）
+	if claudeInfo.Usage.PromptTokens != 100 {
+		t.Errorf("PromptTokens = %d, want 100", claudeInfo.Usage.PromptTokens)
+	}
+	if claudeInfo.Usage.CompletionTokens != 200 {
+		t.Errorf("CompletionTokens = %d, want 200", claudeInfo.Usage.CompletionTokens)
+	}
+	if claudeInfo.Usage.TotalTokens != 300 {
+		t.Errorf("TotalTokens = %d, want 300", claudeInfo.Usage.TotalTokens)
+	}
+	// cache 字段应保持 message_start 的值
+	if claudeInfo.Usage.PromptTokensDetails.CachedTokens != 30 {
+		t.Errorf("CachedTokens = %d, want 30", claudeInfo.Usage.PromptTokensDetails.CachedTokens)
+	}
+	if claudeInfo.Usage.PromptTokensDetails.CachedCreationTokens != 50 {
+		t.Errorf("CachedCreationTokens = %d, want 50", claudeInfo.Usage.PromptTokensDetails.CachedCreationTokens)
+	}
+	if claudeInfo.Usage.ClaudeCacheCreation5mTokens != 10 {
+		t.Errorf("ClaudeCacheCreation5mTokens = %d, want 10", claudeInfo.Usage.ClaudeCacheCreation5mTokens)
+	}
+	if claudeInfo.Usage.ClaudeCacheCreation1hTokens != 20 {
+		t.Errorf("ClaudeCacheCreation1hTokens = %d, want 20", claudeInfo.Usage.ClaudeCacheCreation1hTokens)
+	}
+	if !claudeInfo.Done {
+		t.Error("expected Done = true")
+	}
+}
+
+func TestFormatClaudeResponseInfo_NilClaudeInfo(t *testing.T) {
+	claudeResponse := &dto.ClaudeResponse{Type: "message_start"}
+	ok := FormatClaudeResponseInfo(claudeResponse, nil, nil)
+	if ok {
+		t.Error("expected false for nil claudeInfo")
+	}
+}
+
+func TestFormatClaudeResponseInfo_ContentBlockDelta(t *testing.T) {
+	text := "hello"
+	claudeInfo := &ClaudeResponseInfo{
+		Usage:        &dto.Usage{},
+		ResponseText: strings.Builder{},
+	}
+	claudeResponse := &dto.ClaudeResponse{
+		Type: "content_block_delta",
+		Delta: &dto.ClaudeMediaMessage{
+			Text: &text,
+		},
+	}
+
+	ok := FormatClaudeResponseInfo(claudeResponse, nil, claudeInfo)
+	if !ok {
+		t.Fatal("expected true")
+	}
+	if claudeInfo.ResponseText.String() != "hello" {
+		t.Errorf("ResponseText = %q, want %q", claudeInfo.ResponseText.String(), "hello")
+	}
+}