git.giacomolli.uk - onechat/blob - model_test.go

   1 package main
   2
   3 import (
   4         "io"
   5         "net/http"
   6         "os"
   7         "path/filepath"
   8         "testing"
   9         "time"
  10
  11         "github.com/stretchr/testify/require"
  12 )
  13
  14 func TestClientSendsTheFixedRequestFields(t *testing.T) {
  15         server := newModelFake(t)
  16         client := newTestModelClient(t, server)
  17
  18         _, err := client.Create(t.Context(), ModelRequest{
  19                 Model:        "gpt-test",
  20                 Effort:       "high",
  21                 Instructions: "You are a test.",
  22                 Tools: []ModelTool{{
  23                         Type:       "function",
  24                         Name:       "date",
  25                         Parameters: map[string]any{"type": "object"},
  26                 }},
  27                 Input: []any{modelUserMessage("<chat>\n</chat>\n", "hello")},
  28         })
  29         require.NoError(t, err)
  30
  31         call := server.Call(0)
  32         require.Equal(t, "Bearer "+modelTestKey, call.header.Get("Authorization"))
  33         require.Equal(t, "text/event-stream", call.header.Get("Accept"))
  34         require.Equal(t, "application/json", call.header.Get("Content-Type"))
  35
  36         body := call.body
  37         require.Equal(t, "gpt-test", body["model"])
  38         require.Equal(t, "You are a test.", body["instructions"])
  39         require.Equal(t, false, body["store"])
  40         require.Equal(t, true, body["stream"])
  41         require.Equal(t, []any{"reasoning.encrypted_content"}, body["include"])
  42         require.Equal(t, "agent-key", body["prompt_cache_key"])
  43         require.Equal(t, map[string]any{"effort": "high"}, body["reasoning"])
  44         require.NotContains(t, body, "max_output_tokens")
  45         require.NotContains(t, body, "metadata")
  46         require.Equal(t, []any{map[string]any{
  47                 "role": "user",
  48                 "content": []any{
  49                         map[string]any{"type": "input_text", "text": "<chat>\n</chat>\n"},
  50                         map[string]any{"type": "input_text", "text": "hello"},
  51                 },
  52         }}, body["input"])
  53         require.Len(t, body["tools"], 1)
  54 }
  55
  56 func TestClientSendsTheSessionHeaderToChatGPT(t *testing.T) {
  57         login := newChatGPTFake(t)
  58         auth := newTestChatGPTAuth(t, login)
  59         chatgptWriteTestTokens(t, auth, login.token(time.Hour), "refresh-0")
  60
  61         testCases := []struct {
  62                 name string
  63                 auth ModelAuthorizer
  64                 want string
  65         }{
  66                 {
  67                         name: "ChatGPT backend",
  68                         auth: auth,
  69                         want: "agent-key",
  70                 },
  71                 {
  72                         name: "OpenAI API",
  73                         auth: ModelAPIKey(modelTestKey),
  74                         want: "",
  75                 },
  76         }
  77
  78         for _, tc := range testCases {
  79                 t.Run(tc.name, func(t *testing.T) {
  80                         server := newModelFake(t)
  81                         client := newModelClient(server.URL, tc.auth, "agent-key", filepath.Join(t.TempDir(), "usage.jsonl"))
  82                         _, err := client.Create(t.Context(), modelTestRequest())
  83                         require.NoError(t, err)
  84
  85                         call := server.Call(0)
  86                         require.Equal(t, tc.want, call.header.Get("session_id"))
  87                         require.Equal(t, "agent-key", call.body["prompt_cache_key"])
  88                 })
  89         }
  90 }
  91
  92 func TestClientReadsTheStream(t *testing.T) {
  93         server := newModelFake(t)
  94         server.reply = func(w http.ResponseWriter, call ModelFakeCall) {
  95                 modelWriteEvents(w,
  96                         map[string]any{"type": "response.created", "response": map[string]any{}},
  97                         map[string]any{"type": "response.output_item.done", "item": map[string]any{"type": "reasoning", "encrypted_content": "opaque"}},
  98                         map[string]any{"type": "response.output_text.delta", "delta": "Hel"},
  99                         map[string]any{"type": "response.output_item.done", "item": modelMessageItem("Hello")},
 100                         map[string]any{"type": "response.output_item.done", "item": modelMessageItem(" world")},
 101                         modelCompletedEvent(nil, 1200, 1024, 30),
 102                 )
 103         }
 104
 105         response, err := newTestModelClient(t, server).Create(t.Context(), modelTestRequest())
 106         require.NoError(t, err)
 107         require.Equal(t, "Hello world", response.Text)
 108         require.Len(t, response.Output, 3)
 109         require.JSONEq(t, `{"type": "reasoning", "encrypted_content": "opaque"}`, string(response.Output[0]))
 110         require.Equal(t, ModelUsage{
 111                 Input:  1200,
 112                 Cached: 1024,
 113                 Output: 30,
 114         }, response.Usage)
 115 }
 116
 117 func TestClientTakesTheOutputOfTheCompletedResponse(t *testing.T) {
 118         server := newModelFake(t)
 119         server.reply = func(w http.ResponseWriter, call ModelFakeCall) {
 120                 modelWriteEvents(w, modelCompletedEvent([]any{modelMessageItem("only here")}, 10, 0, 2))
 121         }
 122
 123         response, err := newTestModelClient(t, server).Create(t.Context(), modelTestRequest())
 124         require.NoError(t, err)
 125         require.Equal(t, "only here", response.Text)
 126 }
 127
 128 func TestClientRecordsEachCall(t *testing.T) {
 129         server := newModelFake(t)
 130         server.reply = func(w http.ResponseWriter, call ModelFakeCall) {
 131                 w.Header().Set("X-Codex-Primary-Used-Percent", "12")
 132                 w.Header().Set("X-Codex-Plan-Type", "plus")
 133                 w.Header().Set("X-Other", "not quota")
 134                 w.Header().Set("X-Codex-Turn-State", "opaque state")
 135                 if call.number == 1 {
 136                         w.WriteHeader(http.StatusTooManyRequests)
 137                         _, _ = io.WriteString(w, `{"detail": "slow down"}`)
 138
 139                         return
 140                 }
 141
 142                 modelWriteEvents(w, modelCompletedEvent([]any{modelMessageItem("ok")}, 500, 400, 7))
 143         }
 144
 145         client := newTestModelClient(t, server)
 146         request := modelTestRequest()
 147         request.Node = &NodeKey{2, 5}
 148         _, err := client.Create(t.Context(), request)
 149         require.NoError(t, err)
 150         require.NotContains(t, server.Call(0).body, "node")
 151         require.NotContains(t, string(server.Call(0).raw), "[2,5]")
 152
 153         _, err = client.Create(t.Context(), modelTestRequest())
 154         require.ErrorContains(t, err, "HTTP 429")
 155         require.ErrorContains(t, err, "slow down")
 156
 157         records := modelReadUsage(t, client.usage.path)
 158         require.Len(t, records, 2)
 159
 160         quota := map[string]string{
 161                 "x-codex-primary-used-percent": "12",
 162                 "x-codex-plan-type":            "plus",
 163         }
 164         require.Equal(t, "gpt-test", records[0].Model)
 165         require.Equal(t, http.StatusOK, records[0].Status)
 166         require.Equal(t, 500, records[0].InputTokens)
 167         require.Equal(t, 400, records[0].CachedTokens)
 168         require.Equal(t, 7, records[0].OutputTokens)
 169         require.Equal(t, quota, records[0].Quota)
 170         require.Equal(t, &[2]int{2, 5}, records[0].Node)
 171         require.Equal(t, len("ok"), records[0].TextBytes)
 172         require.Greater(t, records[0].Seconds, 0.0)
 173         require.Empty(t, records[0].Error)
 174         require.NotEmpty(t, records[0].Date)
 175
 176         require.Nil(t, records[1].Node)
 177         require.Zero(t, records[1].TextBytes)
 178
 179         require.Equal(t, http.StatusTooManyRequests, records[1].Status)
 180         require.Equal(t, quota, records[1].Quota)
 181         require.Contains(t, records[1].Error, "HTTP 429")
 182
 183         data, err := os.ReadFile(client.usage.path)
 184         require.NoError(t, err)
 185         require.NotContains(t, string(data), modelTestKey)
 186
 187         info, err := os.Stat(client.usage.path)
 188         require.NoError(t, err)
 189         require.Equal(t, os.FileMode(0o600), info.Mode().Perm())
 190 }
 191
 192 func TestClientRefusesCallsOverTheLimit(t *testing.T) {
 193         server := newModelFake(t)
 194         client := newTestModelClient(t, server)
 195         client.LimitCalls(2)
 196
 197         for range 2 {
 198                 require.False(t, client.LimitReached())
 199                 _, err := client.Create(t.Context(), modelTestRequest())
 200                 require.NoError(t, err)
 201         }
 202
 203         require.True(t, client.LimitReached())
 204         _, err := client.Create(t.Context(), modelTestRequest())
 205         require.ErrorIs(t, err, errModelCallLimit)
 206         require.Equal(t, 2, server.Calls())
 207         require.Len(t, modelReadUsage(t, client.usage.path), 2)
 208 }
 209
 210 func TestClientFailsWhenTheResponseFails(t *testing.T) {
 211         testCases := []struct {
 212                 name   string
 213                 events []any
 214                 want   string
 215         }{
 216                 {
 217                         name:   "failed response",
 218                         events: []any{map[string]any{"type": "response.failed", "response": map[string]any{"error": map[string]any{"code": "server_error", "message": "busy"}}}},
 219                         want:   "server_error: busy",
 220                 },
 221                 {
 222                         name:   "incomplete response",
 223                         events: []any{map[string]any{"type": "response.incomplete", "response": map[string]any{"incomplete_details": map[string]any{"reason": "content_filter"}}}},
 224                         want:   "content_filter",
 225                 },
 226                 {
 227                         name:   "error event",
 228                         events: []any{map[string]any{"type": "error", "code": "rate_limit", "message": "too many"}},
 229                         want:   "rate_limit: too many",
 230                 },
 231                 {
 232                         name:   "stream ends early",
 233                         events: []any{map[string]any{"type": "response.output_item.done", "item": modelMessageItem("cut")}},
 234                         want:   "ended before the response completed",
 235                 },
 236         }
 237
 238         for _, tc := range testCases {
 239                 t.Run(tc.name, func(t *testing.T) {
 240                         server := newModelFake(t)
 241                         server.reply = func(w http.ResponseWriter, call ModelFakeCall) {
 242                                 modelWriteEvents(w, tc.events...)
 243                         }
 244
 245                         client := newTestModelClient(t, server)
 246                         _, err := client.Create(t.Context(), modelTestRequest())
 247                         require.ErrorContains(t, err, tc.want)
 248
 249                         records := modelReadUsage(t, client.usage.path)
 250                         require.Len(t, records, 1)
 251                         require.Contains(t, records[0].Error, tc.want)
 252                 })
 253         }
 254 }
 255
 256 func newTestModelClient(t *testing.T, server *ModelFake) *ModelClient {
 257         t.Helper()
 258
 259         return newModelClient(server.URL, ModelAPIKey(modelTestKey), "agent-key", filepath.Join(t.TempDir(), "usage.jsonl"))
 260 }