mirror of
https://gitcode.com/JianFeeeee/HomeAgent.git
synced 2026-09-23 10:28:06 +00:00
★ 上次修复误判了成因。真实根因(日志 11/11 同形):
{"command": "…完好的长命令…", "timeout": 20s}
command 一字节没错,只是 timeout 值少了引号 —— 而 cmd_run 的 schema 把
timeout 声明成 string、示例写着 "10s, 1m, 30s",模型照抄格式却忘了引号。
实测 finish_reason=length 出现 0 次,所以上次那条"截断"分支从不生效。
旧行为把**整个参数**丢掉:模型只看到 "command is required",看不出是 timeout
写坏了,只能原样重试 —— 12 分钟的任务里 30 次失败 / 32 次成功(48% 浪费),
每次失败都付一次完整 LLM 往返。
改法:parseToolArgsJSON 失败时先试 repairToolArgsJSON,只做一件很窄的事 ——
给"值位置上未加引号的带单位数字"补引号,且修完必须真能解析成功才接受。
因此不会改坏合法 JSON、不会动字符串正文里的 20s、不会把真截断"修好"。
真实日志样本 + 保守性 + 反伪造三组回归测试已钉死。
222 lines
8.3 KiB
Go
222 lines
8.3 KiB
Go
package core
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import (
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"context"
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"strings"
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"testing"
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agentAPI "gitcode.com/JianFeeeee/HomeAgent/internal/agent/api"
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)
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// 验证流式 tool call 分片累积:模拟 llmsproxy/big-pickle 的分片序列
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func TestAccumulateStreamToolCalls(t *testing.T) {
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ch := make(chan agentAPI.StreamChunk, 10)
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go func() {
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// 分片1: name + id + arguments 开头
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ch <- agentAPI.StreamChunk{ToolCalls: []agentAPI.ToolCall{
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{ID: "call_1", Name: "cmd_run", RawArguments: "{\""},
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}}
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// 分片2-3: 只有 arguments 分片
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ch <- agentAPI.StreamChunk{ToolCalls: []agentAPI.ToolCall{
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{RawArguments: "command\""},
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}}
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ch <- agentAPI.StreamChunk{ToolCalls: []agentAPI.ToolCall{
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{RawArguments: ":\"date\"}"},
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}}
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ch <- agentAPI.StreamChunk{Done: true, FinishReason: "tool_calls"}
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close(ch)
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}()
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resp, err := accumulateStream(context.Background(), ch, nil, "cli", 4096)
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if err != nil {
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t.Fatalf("accumulateStream: %v", err)
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}
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if len(resp.ToolCalls) != 1 {
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t.Fatalf("want 1 tool call, got %d", len(resp.ToolCalls))
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}
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tc := resp.ToolCalls[0]
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if tc.Name != "cmd_run" || tc.ID != "call_1" {
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t.Fatalf("bad name/id: %s/%s", tc.ID, tc.Name)
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}
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cmd, _ := tc.Arguments["command"].(string)
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if cmd != "date" {
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t.Fatalf("arguments not merged, got: %v", tc.Arguments)
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}
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if resp.FinishReason != "tool_calls" {
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t.Fatalf("finish reason: %q", resp.FinishReason)
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}
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}
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// 验证 content/reasoning 增量累积
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func TestAccumulateStreamContent(t *testing.T) {
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ch := make(chan agentAPI.StreamChunk, 5)
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go func() {
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ch <- agentAPI.StreamChunk{ReasoningContent: "think "}
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ch <- agentAPI.StreamChunk{Content: "你"}
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ch <- agentAPI.StreamChunk{Content: "好"}
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ch <- agentAPI.StreamChunk{Done: true, FinishReason: "stop"}
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close(ch)
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}()
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resp, err := accumulateStream(context.Background(), ch, nil, "cli", 4096)
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if err != nil {
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t.Fatalf("accumulateStream: %v", err)
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}
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if resp.Content != "你好" {
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t.Fatalf("content: %q", resp.Content)
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}
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if resp.ReasoningContent != "think " {
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t.Fatalf("reasoning: %q", resp.ReasoningContent)
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}
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}
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// 回归(2026-09-19 实测事故):长参数工具调用被 max_tokens 从中间截断时,
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// 上游发 finish_reason="length"、参数 JSON 残缺。旧实现把残缺 JSON 静默降级成
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// 空 map,工具只报 "path is required",模型看不出真因、原样重试四次。
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//
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// 本测试钉死:截断必须变成带指引的 __truncated_error,而不是空参数。
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func TestAccumulateStreamTruncatedArgsSurfaced(t *testing.T) {
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ch := make(chan agentAPI.StreamChunk, 10)
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go func() {
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ch <- agentAPI.StreamChunk{ToolCalls: []agentAPI.ToolCall{
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{ID: "call_1", Name: "files_write", RawArguments: `{"path":"/tmp/a.py","content":"# -*- coding`},
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}}
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// 参数写到一半被切断,随后到达 length 终止块
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ch <- agentAPI.StreamChunk{ToolCalls: []agentAPI.ToolCall{
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{RawArguments: `: utf-8 -*-\nimport openpyxl\nfor i in range(80):\n w`},
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}}
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ch <- agentAPI.StreamChunk{Done: true, FinishReason: "length"}
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close(ch)
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}()
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resp, err := accumulateStream(context.Background(), ch, nil, "cli", 4096)
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if err != nil {
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t.Fatalf("accumulateStream: %v", err)
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}
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if len(resp.ToolCalls) != 1 {
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t.Fatalf("want 1 tool call, got %d", len(resp.ToolCalls))
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}
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msg, ok := resp.ToolCalls[0].Arguments["__truncated_error"].(string)
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if !ok || msg == "" {
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t.Fatalf("截断的参数必须带 __truncated_error,实际 Arguments=%v", resp.ToolCalls[0].Arguments)
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}
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// 指引必须可执行:说出真因(截断/max_tokens)并给出拆小方案
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for _, want := range []string{"截断", "max_tokens=4096", "拆成多次调用"} {
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if !strings.Contains(msg, want) {
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t.Errorf("指引缺少 %q:%s", want, msg)
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}
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}
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// 截断时绝不能把残缺 JSON 解析出的空 map 当参数交出去
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if _, hasPath := resp.ToolCalls[0].Arguments["path"]; hasPath {
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t.Error("截断参数不应残留任何可用字段(否则会以残缺参数执行)")
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}
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}
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// 非截断的残缺 JSON 保持旧行为(静默降级成空 map,由工具自己的必填校验报错):
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// 这样不会把「厂商不回 finish_reason」的流也误判成截断。
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func TestAccumulateStreamInvalidArgsNotFlaggedAsTruncated(t *testing.T) {
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ch := make(chan agentAPI.StreamChunk, 10)
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go func() {
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ch <- agentAPI.StreamChunk{ToolCalls: []agentAPI.ToolCall{
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{ID: "call_1", Name: "files_write", RawArguments: `{"path":`},
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}}
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ch <- agentAPI.StreamChunk{Done: true, FinishReason: "tool_calls"}
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close(ch)
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}()
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resp, err := accumulateStream(context.Background(), ch, nil, "cli", 4096)
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if err != nil {
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t.Fatalf("accumulateStream: %v", err)
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}
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if len(resp.ToolCalls) != 1 {
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t.Fatalf("want 1 tool call, got %d", len(resp.ToolCalls))
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}
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if _, ok := resp.ToolCalls[0].Arguments["__truncated_error"]; ok {
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t.Error("finish_reason=tool_calls 时不应标记为截断")
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}
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}
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// 截断必须**真的拦住工具调用**,而不是只改错误文案:
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// 旧实现拿着空 map 去调 files_write,工具回 "path is required",
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// 模型据此原样重试(实测连续 4 次)。这里断言 executeToolCallInner 的短路。
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func TestTruncatedToolCallIsShortCircuited(t *testing.T) {
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tc := agentAPI.ToolCall{
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ID: "call_1",
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Name: "files_write",
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Arguments: map[string]interface{}{
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"__truncated_error": truncatedArgsError("files_write", 259, 4096),
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},
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}
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a := &Agent{}
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got := a.executeToolCallInner(tc, "webui", nil)
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if strings.Contains(got, "path is required") {
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t.Errorf("截断后仍走了工具分派(模型会原样重试):%s", got)
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}
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for _, want := range []string{"截断", "max_tokens=4096", "拆成多次调用"} {
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if !strings.Contains(got, want) {
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t.Errorf("指引缺少 %q:%s", want, got)
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}
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}
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}
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// 回归(2026-09-19 线上实测):真 invalid JSON 有 11/11 是同一成因 ——
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// 模型把 timeout 写成 `"timeout": 20s`(值缺引号,schema 示例是 "10s, 1m, 30s"
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// 而声明是 string 类型),而 command 部分一字节没错。
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//
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// 旧行为:解析失败 → 静默降级成空 map → 整个 command 被丢 → 工具报
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// "command is required",模型只能原样重试 ⇒ 实测 cmd_run 失败率 34%(34 败/64 成)。
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func TestRepairUnquotedUnitNumberInArgs(t *testing.T) {
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// 全部取自日志原文(未被我自己的日志截断的那些)
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real := []string{
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`{"command": "ls -lt /tmp/*.xlsx /tmp/*.py 2>/dev/null | head -20; echo \"=== home ===\"; ls -lt ~ 2>/dev/null | head -20", "timeout": 20s}`,
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`{"command": "sleep 45; cat /tmp/run_szce.log; ls -la /tmp/szce_run_raw.json 2>/dev/null", "timeout": 90s}`,
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`{"command": "echo \"=== 上一轮 raw (471B) ===\"; cat /tmp/szce_run_raw.json; echo; echo \"=== 后台进程 ===\"; ps aux | grep -c \"[r]un_szce.py\"; echo \"=== log ===\"; cat /tmp/run_szce.log", "timeout": 30s}`,
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`{"command": "sleep 60; cat /tmp/probe_out.txt; echo \"=== alive ===\"; ps aux | grep -c \"[p]robe_models.py\"", "timeout": 120s}`,
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`{"command": "cat /tmp/probe_out.txt; echo \"--- alive ---\"; ps aux | grep -c \"[p]robe_models.py\"", "timeout": 30s}`,
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}
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for i, s := range real {
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m, ok := parseToolArgsJSON(s)
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if !ok {
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t.Errorf("case %d 仍解析失败", i)
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continue
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}
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if cmd, _ := m["command"].(string); cmd == "" {
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t.Errorf("case %d 完好的 command 丢失", i)
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}
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if to, _ := m["timeout"].(string); to == "" {
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t.Errorf("case %d timeout 未补成字符串: %#v", i, m["timeout"])
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}
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}
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}
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// 修复必须保守:不能碰合法 JSON,尤其不能改到字符串**正文里**的 “20s”。
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func TestRepairKeepsValidArgsIntact(t *testing.T) {
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m, ok := parseToolArgsJSON(`{"command": "ls", "timeout": "20s"}`)
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if !ok {
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t.Fatal("合法 JSON 被判非法")
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}
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if m["timeout"] != "20s" {
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t.Errorf("合法 timeout 被改: %#v", m["timeout"])
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}
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m2, ok := parseToolArgsJSON(`{"content": "wait 20s then go"}`)
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if !ok {
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t.Fatal("含 20s 的正文被判非法")
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}
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if m2["content"] != "wait 20s then go" {
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t.Errorf("正文里的 20s 被误改: %#v", m2["content"])
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}
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}
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// 真截断(JSON 从中间断掉)绝不能被“修好”,否则会拿残缺参数去执行 —— 更危险。
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func TestRepairDoesNotFabricateTruncatedArgs(t *testing.T) {
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for _, s := range []string{
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`{"command": "ls -la /tmp && echo done"`,
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`{"command": "echo hi", "timeout": 30`,
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`{"path": "/tmp/x", "content": "unterminated`,
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} {
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if _, ok := parseToolArgsJSON(s); ok {
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t.Errorf("截断参数被误判为可修复(危险): %s", s)
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}
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}
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}
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