250 lines
10 KiB
Go
250 lines
10 KiB
Go
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package service
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import (
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"encoding/json"
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"testing"
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"github.com/stretchr/testify/require"
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"github.com/tidwall/gjson"
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)
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// issue #5364 的最小复现体：Codex Desktop 内置 automation_update 带
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// parameters.type = null，upstream 回 400 invalid_function_parameters。
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func TestSanitizeOpenAIResponsesToolParameterTypes_TopLevelFunctionTool(t *testing.T) {
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body := []byte(`{
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"model": "gpt-5.6-sol",
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"input": "Reply with OK.",
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"stream": false,
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"tools": [
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{
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"type": "function",
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"name": "automation_update",
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"description": "Update an automation.",
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"parameters": {"type": null, "properties": {}}
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}
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]
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}`)
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sanitized, changed, err := sanitizeOpenAIResponsesToolParameterTypes(body)
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require.NoError(t, err)
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require.True(t, changed)
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require.Equal(t, "object", gjson.GetBytes(sanitized, "tools.0.parameters.type").String())
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// 只改 type，工具其余定义原样保留。
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require.Equal(t, "automation_update", gjson.GetBytes(sanitized, "tools.0.name").String())
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require.Equal(t, "Update an automation.", gjson.GetBytes(sanitized, "tools.0.description").String())
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require.True(t, gjson.GetBytes(sanitized, "tools.0.parameters.properties").IsObject())
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// 请求体其余字段不受影响。
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require.Equal(t, "gpt-5.6-sol", gjson.GetBytes(sanitized, "model").String())
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require.Equal(t, "Reply with OK.", gjson.GetBytes(sanitized, "input").String())
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}
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// 合法 Schema 必须原样返回：changed=false 且字节不变，避免无谓重写打散
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// prompt cache 前缀。
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func TestSanitizeOpenAIResponsesToolParameterTypes_ValidSchemaUntouched(t *testing.T) {
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body := []byte(`{"tools":[{"type":"function","name":"ok","parameters":{"type":"object","properties":{}}}]}`)
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sanitized, changed, err := sanitizeOpenAIResponsesToolParameterTypes(body)
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require.NoError(t, err)
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require.False(t, changed)
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require.Equal(t, string(body), string(sanitized))
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}
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// 缺失 type 的 Schema 本身合法（等价于不约束），不得补写——补写会收窄客户端语义。
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func TestSanitizeOpenAIResponsesToolParameterTypes_MissingTypeNotInvented(t *testing.T) {
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body := []byte(`{"tools":[{"type":"function","name":"ok","parameters":{"properties":{}}}]}`)
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sanitized, changed, err := sanitizeOpenAIResponsesToolParameterTypes(body)
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require.NoError(t, err)
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require.False(t, changed)
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require.False(t, gjson.GetBytes(sanitized, "tools.0.parameters.type").Exists())
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}
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// 多轮历史：工具定义沉进 input 后，upstream 报错路径形如
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// input[N].tools[i].tools[j].parameters，两层都要修。
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func TestSanitizeOpenAIResponsesToolParameterTypes_NestedHistoryTools(t *testing.T) {
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body := []byte(`{
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"input": [
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{"type": "message", "role": "user", "content": "hi"},
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{
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"type": "additional_tools",
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"role": "developer",
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"tools": [
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{
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"type": "namespace",
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"name": "codex_app",
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"tools": [
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{"type": "function", "name": "noop", "parameters": {"type": "object"}},
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{"type": "function", "name": "automation_update", "parameters": {"type": null}}
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]
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},
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{"type": "function", "name": "outer", "parameters": {"type": null}}
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]
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}
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]
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}`)
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sanitized, changed, err := sanitizeOpenAIResponsesToolParameterTypes(body)
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require.NoError(t, err)
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require.True(t, changed)
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require.Equal(t, "object", gjson.GetBytes(sanitized, "input.1.tools.0.tools.1.parameters.type").String())
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require.Equal(t, "object", gjson.GetBytes(sanitized, "input.1.tools.1.parameters.type").String())
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// 原本合法的兄弟条目保持不变。
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require.Equal(t, "object", gjson.GetBytes(sanitized, "input.1.tools.0.tools.0.parameters.type").String())
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require.Equal(t, "hi", gjson.GetBytes(sanitized, "input.0.content").String())
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}
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// ChatCompletions 形态的工具（{type:"function", function:{...}}）同样可能出现在
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// Responses 请求里，见 normalizeCodexTools。
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func TestSanitizeOpenAIResponsesToolParameterTypes_ChatCompletionsShape(t *testing.T) {
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body := []byte(`{"tools":[{"type":"function","function":{"name":"legacy","parameters":{"type":null}}}]}`)
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sanitized, changed, err := sanitizeOpenAIResponsesToolParameterTypes(body)
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require.NoError(t, err)
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require.True(t, changed)
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require.Equal(t, "object", gjson.GetBytes(sanitized, "tools.0.function.parameters.type").String())
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require.Equal(t, "legacy", gjson.GetBytes(sanitized, "tools.0.function.name").String())
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}
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// 索引映射：只有坏条目被改，前后兄弟条目按原下标保持不变。
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func TestSanitizeOpenAIResponsesToolParameterTypes_OnlyOffendingIndexRewritten(t *testing.T) {
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body := []byte(`{"tools":[
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{"type":"function","name":"a","parameters":{"type":"object"}},
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{"type":"function","name":"b","parameters":{"type":null}},
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{"type":"function","name":"c","parameters":{"type":"object"}}
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]}`)
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sanitized, changed, err := sanitizeOpenAIResponsesToolParameterTypes(body)
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require.NoError(t, err)
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require.True(t, changed)
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require.Equal(t, "a", gjson.GetBytes(sanitized, "tools.0.name").String())
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require.Equal(t, "b", gjson.GetBytes(sanitized, "tools.1.name").String())
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require.Equal(t, "c", gjson.GetBytes(sanitized, "tools.2.name").String())
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require.Equal(t, "object", gjson.GetBytes(sanitized, "tools.1.parameters.type").String())
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require.Equal(t, 3, int(gjson.GetBytes(sanitized, "tools.#").Int()))
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}
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// 畸形/非常规形态不得 panic，且一律按不变处理。
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func TestSanitizeOpenAIResponsesToolParameterTypes_MalformedShapesAreNoOps(t *testing.T) {
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cases := []struct {
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name string
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body string
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}{
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{"empty_body", ``},
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{"no_tools", `{"model":"gpt-5.6-sol","input":"hi"}`},
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{"tools_null", `{"tools":null}`},
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{"tools_object", `{"tools":{"type":"function"}}`},
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{"tool_is_string", `{"tools":["freeform"]}`},
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{"parameters_is_string", `{"tools":[{"type":"function","parameters":"nope"}]}`},
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{"parameters_null", `{"tools":[{"type":"function","parameters":null}]}`},
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{"input_string", `{"input":"hi","tools":[]}`},
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{"input_item_not_object", `{"input":["hi"]}`},
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{"type_already_array", `{"tools":[{"type":"function","parameters":{"type":["object","null"]}}]}`},
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}
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for _, tc := range cases {
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t.Run(tc.name, func(t *testing.T) {
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sanitized, changed, err := sanitizeOpenAIResponsesToolParameterTypes([]byte(tc.body))
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require.NoError(t, err)
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require.False(t, changed)
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require.Equal(t, tc.body, string(sanitized))
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})
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}
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}
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// 递归深度守卫：超深嵌套只做截断，不递归到栈溢出，也不报错。
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func TestSanitizeOpenAIResponsesToolParameterTypes_DepthGuard(t *testing.T) {
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tool := map[string]any{"type": "function", "name": "deep", "parameters": map[string]any{"type": nil}}
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for i := 0; i < 12; i++ {
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tool = map[string]any{"type": "namespace", "tools": []any{tool}}
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}
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body, err := json.Marshal(map[string]any{"tools": []any{tool}})
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require.NoError(t, err)
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require.NotPanics(t, func() {
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_, _, sanitizeErr := sanitizeOpenAIResponsesToolParameterTypes(body)
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require.NoError(t, sanitizeErr)
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})
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}
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// 输出必须是合法 JSON，且除目标字段外与输入等价。
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func TestSanitizeOpenAIResponsesToolParameterTypes_OutputStaysValidJSON(t *testing.T) {
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body := []byte(`{"model":"gpt-5.5","tool_choice":"none","store":false,"tools":[{"type":"function","name":"automation_update","parameters":{"type":null,"properties":{}}}]}`)
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sanitized, changed, err := sanitizeOpenAIResponsesToolParameterTypes(body)
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require.NoError(t, err)
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require.True(t, changed)
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var decoded map[string]any
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require.NoError(t, json.Unmarshal(sanitized, &decoded))
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require.Equal(t, "gpt-5.5", decoded["model"])
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require.Equal(t, "none", decoded["tool_choice"])
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require.Equal(t, false, decoded["store"])
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}
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// 输入 body 是调用方持有的缓冲区（Forward 里 canonicalImageIntentBody 与它同源），
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// 净化必须返回新切片，绝不能就地改写。
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func TestSanitizeOpenAIResponsesToolParameterTypes_DoesNotMutateInputBody(t *testing.T) {
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body := []byte(`{"model":"gpt-5.6-sol","tools":[{"type":"function","name":"a","parameters":{"type":null}}]}`)
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original := append([]byte(nil), body...)
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sanitized, changed, err := sanitizeOpenAIResponsesToolParameterTypes(body)
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require.NoError(t, err)
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require.True(t, changed)
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require.Equal(t, string(original), string(body), "调用方的 body 不得被就地改写")
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require.NotEqual(t, string(original), string(sanitized))
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}
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func buildToolSchemaNullTypeBody(t *testing.T, hits int) []byte {
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t.Helper()
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tools := make([]any, 0, hits)
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for i := 0; i < hits; i++ {
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tools = append(tools, map[string]any{
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"type": "function",
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"name": "automation_update",
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"parameters": map[string]any{"type": nil, "properties": map[string]any{}},
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})
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}
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body, err := json.Marshal(map[string]any{"model": "gpt-5.6-sol", "tools": tools})
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require.NoError(t, err)
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return body
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}
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// 复杂度守卫：重写次数必须与命中数无关。
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//
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// 逐个 sjson.SetBytes 的写法每命中一处就重扫并全量拷贝一次文档，命中 N 处即 N 次
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// 全量拷贝；/v1/responses 的 body 上限是 gateway.max_body_size（默认 256MB），
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// 构造请求可以塞进百万级命中，会被放大成 TB 级 memcpy。这里用分配次数锁死该行为：
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// 命中数放大 500 倍，分配次数不得随之增长。
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func TestSanitizeOpenAIResponsesToolParameterTypes_RewriteCountIndependentOfHits(t *testing.T) {
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small := buildToolSchemaNullTypeBody(t, 4)
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large := buildToolSchemaNullTypeBody(t, 2000)
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smallAllocs := testing.AllocsPerRun(2, func() {
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_, _, _ = sanitizeOpenAIResponsesToolParameterTypes(small)
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})
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largeAllocs := testing.AllocsPerRun(2, func() {
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_, _, _ = sanitizeOpenAIResponsesToolParameterTypes(large)
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})
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// 命中切片扩容是对数级，留出充裕余量；线性写法在这里会是 2000 量级。
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require.Less(t, largeAllocs, smallAllocs+40,
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"分配次数随命中数线性增长，说明退回了逐路径全量重写 (small=%v large=%v)", smallAllocs, largeAllocs)
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// 同时确认大 body 的结果确实全部修好了。
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sanitized, changed, err := sanitizeOpenAIResponsesToolParameterTypes(large)
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require.NoError(t, err)
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require.True(t, changed)
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require.Equal(t, 2000, int(gjson.GetBytes(sanitized, "tools.#").Int()))
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gjson.GetBytes(sanitized, "tools").ForEach(func(_, tool gjson.Result) bool {
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require.Equal(t, "object", tool.Get("parameters.type").String())
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return true
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})
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}
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