Files
coder/coderd/x/chatd/title_override_internal_test.go
T
Ethan c650aabbef chore: standardize on *_internal_test.go for white-box tests (#25601)
My agent added `//nolint:testpackage` to a test file on one of my PRs.
Again. This PR cleans it up across the entire repo and updates the
in-repo conventions so future agents stop doing it.

The repo already has a precedent for white-box tests that need to touch
unexported symbols: `*_internal_test.go` (145+ existing files). The
`testpackage` linter's default `skip-regexp` exempts that filename
suffix, so the `//nolint:testpackage` directive is unnecessary in every
case where someone reached for it. This PR renames 51 such files to
`*_internal_test.go` via `git mv` so blame and history follow, and
strips the dead directive from 2 files that were already correctly named
(`coderd/oauth2provider/authorize_internal_test.go`,
`coderd/x/chatd/advisor_internal_test.go`).

`.claude/docs/TESTING.md` now documents the rule explicitly under *Test
Package Naming*, which is imported into the root `AGENTS.md` via
`@.claude/docs/TESTING.md`. The rule: prefer `package foo_test`; if you
need internal access, rename the file to `*_internal_test.go` rather
than adding a nolint directive.
2026-05-22 20:24:38 +10:00

624 lines
20 KiB
Go

package chatd
import (
"context"
"database/sql"
"sync/atomic"
"testing"
"charm.land/fantasy"
"github.com/google/uuid"
"github.com/stretchr/testify/require"
"go.uber.org/mock/gomock"
"golang.org/x/xerrors"
"cdr.dev/slog/v3"
"cdr.dev/slog/v3/sloggers/slogtest"
"github.com/coder/coder/v2/coderd/database"
"github.com/coder/coder/v2/coderd/database/dbmock"
"github.com/coder/coder/v2/coderd/x/chatd/chatprovider"
"github.com/coder/coder/v2/coderd/x/chatd/chattest"
"github.com/coder/coder/v2/codersdk"
"github.com/coder/coder/v2/testutil"
"github.com/coder/quartz"
)
func TestMaybeGenerateChatTitle_TitleGenerationOverrideUnset(t *testing.T) {
t.Parallel()
t.Run("uses preferred model before fallback", func(t *testing.T) {
t.Parallel()
ctx := testutil.Context(t, testutil.WaitShort)
ctrl := gomock.NewController(t)
db := dbmock.NewMockStore(ctrl)
logger := slogtest.Make(t, &slogtest.Options{IgnoreErrors: true})
chat, messages := titleOverrideTestChatAndMessages(t)
wantTitle := "Preferred title"
var requestCount atomic.Int32
serverURL := chattest.NewOpenAI(t, func(req *chattest.OpenAIRequest) chattest.OpenAIResponse {
requestCount.Add(1)
require.Equal(t, preferredTitleModels[1].model, req.Model)
return chattest.OpenAINonStreamingResponse(`{"title":"` + wantTitle + `"}`)
})
keys := titleOverrideOpenAIKeys(serverURL)
fallbackModel := &chattest.FakeModel{
GenerateObjectFn: func(context.Context, fantasy.ObjectCall) (*fantasy.ObjectResponse, error) {
t.Fatal("fallback model should not be called when preferred model works")
return nil, xerrors.New("unexpected fallback model call")
},
}
db.EXPECT().GetChatTitleGenerationModelOverride(gomock.Any()).Return("", nil)
db.EXPECT().UpdateChatTitleByID(gomock.Any(), database.UpdateChatTitleByIDParams{
ID: chat.ID,
Title: wantTitle,
}).Return(chatWithTitle(chat, wantTitle), nil)
generated := &generatedChatTitle{}
server := titleOverrideTestServer(db, logger)
server.maybeGenerateChatTitle(
ctx,
chat,
messages,
"openai",
"fallback-chat-model",
fallbackModel,
keys,
generated,
logger,
nil,
)
require.Equal(t, int32(1), requestCount.Load())
gotTitle, ok := generated.Load()
require.True(t, ok)
require.Equal(t, wantTitle, gotTitle)
})
t.Run("falls back to chat model when preferred models are unavailable", func(t *testing.T) {
t.Parallel()
ctx := testutil.Context(t, testutil.WaitShort)
ctrl := gomock.NewController(t)
db := dbmock.NewMockStore(ctrl)
logger := slogtest.Make(t, &slogtest.Options{IgnoreErrors: true})
chat, messages := titleOverrideTestChatAndMessages(t)
wantTitle := "Fallback title"
var fallbackCalls atomic.Int32
fallbackModel := &chattest.FakeModel{
GenerateObjectFn: func(context.Context, fantasy.ObjectCall) (*fantasy.ObjectResponse, error) {
fallbackCalls.Add(1)
return &fantasy.ObjectResponse{
Object: map[string]any{"title": wantTitle},
}, nil
},
}
db.EXPECT().GetChatTitleGenerationModelOverride(gomock.Any()).Return("", nil)
db.EXPECT().UpdateChatTitleByID(gomock.Any(), database.UpdateChatTitleByIDParams{
ID: chat.ID,
Title: wantTitle,
}).Return(chatWithTitle(chat, wantTitle), nil)
generated := &generatedChatTitle{}
server := titleOverrideTestServer(db, logger)
server.maybeGenerateChatTitle(
ctx,
chat,
messages,
"openai",
"fallback-chat-model",
fallbackModel,
chatprovider.ProviderAPIKeys{},
generated,
logger,
nil,
)
require.Equal(t, int32(1), fallbackCalls.Load())
gotTitle, ok := generated.Load()
require.True(t, ok)
require.Equal(t, wantTitle, gotTitle)
})
}
func TestMaybeGenerateChatTitle_TitleGenerationOverrideReadDBError(t *testing.T) {
t.Parallel()
ctx := testutil.Context(t, testutil.WaitShort)
ctrl := gomock.NewController(t)
db := dbmock.NewMockStore(ctrl)
logger := slogtest.Make(t, &slogtest.Options{IgnoreErrors: true})
chat, messages := titleOverrideTestChatAndMessages(t)
wantTitle := "Fallback title"
var fallbackCalls atomic.Int32
fallbackModel := &chattest.FakeModel{
GenerateObjectFn: func(context.Context, fantasy.ObjectCall) (*fantasy.ObjectResponse, error) {
fallbackCalls.Add(1)
return &fantasy.ObjectResponse{
Object: map[string]any{"title": wantTitle},
}, nil
},
}
db.EXPECT().GetChatTitleGenerationModelOverride(gomock.Any()).Return("", sql.ErrConnDone)
db.EXPECT().UpdateChatTitleByID(gomock.Any(), database.UpdateChatTitleByIDParams{
ID: chat.ID,
Title: wantTitle,
}).Return(chatWithTitle(chat, wantTitle), nil)
generated := &generatedChatTitle{}
server := titleOverrideTestServer(db, logger)
server.maybeGenerateChatTitle(
ctx,
chat,
messages,
"openai",
"fallback-chat-model",
fallbackModel,
chatprovider.ProviderAPIKeys{},
generated,
logger,
nil,
)
require.Equal(t, int32(1), fallbackCalls.Load())
gotTitle, ok := generated.Load()
require.True(t, ok)
require.Equal(t, wantTitle, gotTitle)
}
func TestMaybeGenerateChatTitle_TitleGenerationOverrideMalformedFallsThrough(t *testing.T) {
t.Parallel()
ctx := testutil.Context(t, testutil.WaitShort)
ctrl := gomock.NewController(t)
db := dbmock.NewMockStore(ctrl)
logger := slogtest.Make(t, &slogtest.Options{IgnoreErrors: true})
chat, messages := titleOverrideTestChatAndMessages(t)
wantTitle := "Fallback title"
var fallbackCalls atomic.Int32
fallbackModel := &chattest.FakeModel{
GenerateObjectFn: func(context.Context, fantasy.ObjectCall) (*fantasy.ObjectResponse, error) {
fallbackCalls.Add(1)
return &fantasy.ObjectResponse{
Object: map[string]any{"title": wantTitle},
}, nil
},
}
db.EXPECT().GetChatTitleGenerationModelOverride(gomock.Any()).Return("not-a-uuid", nil)
db.EXPECT().UpdateChatTitleByID(gomock.Any(), database.UpdateChatTitleByIDParams{
ID: chat.ID,
Title: wantTitle,
}).Return(chatWithTitle(chat, wantTitle), nil)
generated := &generatedChatTitle{}
server := titleOverrideTestServer(db, logger)
server.maybeGenerateChatTitle(
ctx,
chat,
messages,
"openai",
"fallback-chat-model",
fallbackModel,
chatprovider.ProviderAPIKeys{},
generated,
logger,
nil,
)
require.Equal(t, int32(1), fallbackCalls.Load())
gotTitle, ok := generated.Load()
require.True(t, ok)
require.Equal(t, wantTitle, gotTitle)
}
func TestMaybeGenerateChatTitle_TitleGenerationOverrideSetUsable(t *testing.T) {
t.Parallel()
ctx := testutil.Context(t, testutil.WaitShort)
ctrl := gomock.NewController(t)
db := dbmock.NewMockStore(ctrl)
logger := slogtest.Make(t, &slogtest.Options{IgnoreErrors: true})
chat, messages := titleOverrideTestChatAndMessages(t)
overrideConfig := titleOverrideModelConfig("gpt-4.1", true)
providerID := uuid.New()
overrideConfig.AIProviderID = uuid.NullUUID{UUID: providerID, Valid: true}
wantTitle := "Override title"
var requestCount atomic.Int32
serverURL := chattest.NewOpenAI(t, func(req *chattest.OpenAIRequest) chattest.OpenAIResponse {
requestCount.Add(1)
require.Equal(t, overrideConfig.Model, req.Model)
return chattest.OpenAINonStreamingResponse(`{"title":"` + wantTitle + `"}`)
})
provider := database.AIProvider{
ID: providerID,
Type: database.AiProviderTypeOpenai,
Enabled: true,
BaseUrl: serverURL,
}
fallbackModel := &chattest.FakeModel{
GenerateObjectFn: func(context.Context, fantasy.ObjectCall) (*fantasy.ObjectResponse, error) {
t.Fatal("fallback model should not be called when override is usable")
return nil, xerrors.New("unexpected fallback model call")
},
}
db.EXPECT().GetChatTitleGenerationModelOverride(gomock.Any()).Return(overrideConfig.ID.String(), nil)
db.EXPECT().GetChatModelConfigByID(gomock.Any(), overrideConfig.ID).Return(overrideConfig, nil)
db.EXPECT().GetAIProviderByID(gomock.Any(), providerID).Return(provider, nil).AnyTimes()
db.EXPECT().GetAIProviderKeysByProviderID(gomock.Any(), providerID).Return([]database.AIProviderKey{{
ProviderID: providerID,
APIKey: "test-key",
}}, nil)
db.EXPECT().UpdateChatTitleByID(gomock.Any(), database.UpdateChatTitleByIDParams{
ID: chat.ID,
Title: wantTitle,
}).Return(chatWithTitle(chat, wantTitle), nil)
generated := &generatedChatTitle{}
server := titleOverrideTestServer(db, logger)
server.maybeGenerateChatTitle(
ctx,
chat,
messages,
"openai",
"fallback-chat-model",
fallbackModel,
chatprovider.ProviderAPIKeys{},
generated,
logger,
nil,
)
require.Equal(t, int32(1), requestCount.Load())
gotTitle, ok := generated.Load()
require.True(t, ok)
require.Equal(t, wantTitle, gotTitle)
}
func TestMaybeGenerateChatTitle_TitleGenerationOverrideSetUnusableSkips(t *testing.T) {
t.Parallel()
ctx := testutil.Context(t, testutil.WaitShort)
ctrl := gomock.NewController(t)
db := dbmock.NewMockStore(ctrl)
logger := slogtest.Make(t, &slogtest.Options{IgnoreErrors: true})
chat, messages := titleOverrideTestChatAndMessages(t)
overrideConfig := titleOverrideModelConfig("gpt-4.1", false)
fallbackModel := &chattest.FakeModel{
GenerateObjectFn: func(context.Context, fantasy.ObjectCall) (*fantasy.ObjectResponse, error) {
t.Fatal("fallback model should not be called when override is unusable")
return nil, xerrors.New("unexpected fallback model call")
},
}
db.EXPECT().GetChatTitleGenerationModelOverride(gomock.Any()).Return(overrideConfig.ID.String(), nil)
db.EXPECT().GetChatModelConfigByID(gomock.Any(), overrideConfig.ID).Return(overrideConfig, nil)
generated := &generatedChatTitle{}
server := titleOverrideTestServer(db, logger)
server.maybeGenerateChatTitle(
ctx,
chat,
messages,
"openai",
"fallback-chat-model",
fallbackModel,
chatprovider.ProviderAPIKeys{},
generated,
logger,
nil,
)
_, ok := generated.Load()
require.False(t, ok)
}
func TestMaybeGenerateChatTitle_TitleGenerationOverrideCallFailureSkipsFallback(t *testing.T) {
t.Parallel()
ctx := testutil.Context(t, testutil.WaitShort)
ctrl := gomock.NewController(t)
db := dbmock.NewMockStore(ctrl)
logger := slogtest.Make(t, &slogtest.Options{IgnoreErrors: true})
chat, messages := titleOverrideTestChatAndMessages(t)
overrideConfig := titleOverrideModelConfig("gpt-4.1", true)
var requestCount atomic.Int32
serverURL := chattest.NewOpenAI(t, func(req *chattest.OpenAIRequest) chattest.OpenAIResponse {
requestCount.Add(1)
require.Equal(t, overrideConfig.Model, req.Model)
return chattest.OpenAINonStreamingResponse(`{"title":""}`)
})
keys := titleOverrideOpenAIKeys(serverURL)
fallbackModel := &chattest.FakeModel{
GenerateObjectFn: func(context.Context, fantasy.ObjectCall) (*fantasy.ObjectResponse, error) {
t.Fatal("fallback model should not be called after override call failure")
return nil, xerrors.New("unexpected fallback model call")
},
}
db.EXPECT().GetChatTitleGenerationModelOverride(gomock.Any()).Return(overrideConfig.ID.String(), nil)
db.EXPECT().GetChatModelConfigByID(gomock.Any(), overrideConfig.ID).Return(overrideConfig, nil)
db.EXPECT().GetAIProviders(gomock.Any(), gomock.Any()).Return([]database.AIProvider{{Type: database.AiProviderTypeOpenai, Enabled: true}}, nil)
db.EXPECT().GetAIProviderKeysByProviderIDs(gomock.Any(), []uuid.UUID{uuid.Nil}).Return(nil, nil)
generated := &generatedChatTitle{}
server := titleOverrideTestServer(db, logger)
server.maybeGenerateChatTitle(
ctx,
chat,
messages,
"openai",
"fallback-chat-model",
fallbackModel,
keys,
generated,
logger,
nil,
)
require.Equal(t, int32(1), requestCount.Load())
_, ok := generated.Load()
require.False(t, ok)
}
func TestResolveManualTitleModel_TitleGenerationOverrideUnset(t *testing.T) {
t.Parallel()
ctx := testutil.Context(t, testutil.WaitShort)
ctrl := gomock.NewController(t)
db := dbmock.NewMockStore(ctrl)
logger := slogtest.Make(t, &slogtest.Options{IgnoreErrors: true})
chat, _ := titleOverrideTestChatAndMessages(t)
preferredConfig := database.ChatModelConfig{
ID: uuid.New(),
Provider: preferredTitleModels[1].provider,
Model: preferredTitleModels[1].model,
Enabled: true,
}
db.EXPECT().GetChatTitleGenerationModelOverride(gomock.Any()).Return("", nil)
db.EXPECT().GetEnabledChatModelConfigs(gomock.Any()).Return([]database.ChatModelConfig{
{Provider: "openai", Model: "gpt-4.1", Enabled: true},
preferredConfig,
}, nil)
server := titleOverrideTestServer(db, logger)
model, gotConfig, _, err := server.resolveManualTitleModel(
ctx,
db,
chat,
chatprovider.ProviderAPIKeys{ByProvider: map[string]string{"openai": "test-key"}},
)
require.NoError(t, err)
require.NotNil(t, model)
require.Equal(t, preferredConfig, gotConfig)
}
func TestResolveManualTitleModel_TitleGenerationOverrideUnsetAIProvider(t *testing.T) {
t.Parallel()
ctx := testutil.Context(t, testutil.WaitShort)
ctrl := gomock.NewController(t)
db := dbmock.NewMockStore(ctrl)
logger := slogtest.Make(t, &slogtest.Options{IgnoreErrors: true})
chat, _ := titleOverrideTestChatAndMessages(t)
providerID := uuid.New()
preferredConfig := database.ChatModelConfig{
ID: uuid.New(),
Provider: preferredTitleModels[1].provider,
AIProviderID: uuid.NullUUID{UUID: providerID, Valid: true},
Model: preferredTitleModels[1].model,
Enabled: true,
}
serverURL := chattest.NewOpenAI(t, func(req *chattest.OpenAIRequest) chattest.OpenAIResponse {
t.Fatal("model construction should not call the provider")
return chattest.OpenAIResponse{}
})
provider := database.AIProvider{
ID: providerID,
Type: database.AiProviderTypeOpenai,
Enabled: true,
BaseUrl: serverURL,
}
db.EXPECT().GetChatTitleGenerationModelOverride(gomock.Any()).Return("", nil)
db.EXPECT().GetEnabledChatModelConfigs(gomock.Any()).Return([]database.ChatModelConfig{
preferredConfig,
}, nil)
db.EXPECT().GetAIProviderByID(gomock.Any(), providerID).Return(provider, nil)
db.EXPECT().GetAIProviderKeysByProviderID(gomock.Any(), providerID).Return([]database.AIProviderKey{{
ProviderID: providerID,
APIKey: "test-key",
}}, nil)
server := titleOverrideTestServer(db, logger)
model, gotConfig, gotKeys, err := server.resolveManualTitleModel(
ctx,
db,
chat,
chatprovider.ProviderAPIKeys{},
)
require.NoError(t, err)
require.NotNil(t, model)
require.Equal(t, preferredConfig, gotConfig)
require.Equal(t, "test-key", gotKeys.APIKey("openai"))
}
func TestResolveManualTitleModel_TitleGenerationOverrideReadDBError(t *testing.T) {
t.Parallel()
ctx := testutil.Context(t, testutil.WaitShort)
ctrl := gomock.NewController(t)
db := dbmock.NewMockStore(ctrl)
logger := slogtest.Make(t, &slogtest.Options{IgnoreErrors: true})
chat, _ := titleOverrideTestChatAndMessages(t)
preferredConfig := database.ChatModelConfig{
ID: uuid.New(),
Provider: preferredTitleModels[1].provider,
Model: preferredTitleModels[1].model,
Enabled: true,
}
db.EXPECT().GetChatTitleGenerationModelOverride(gomock.Any()).Return("", sql.ErrConnDone)
db.EXPECT().GetEnabledChatModelConfigs(gomock.Any()).Return([]database.ChatModelConfig{
{Provider: "openai", Model: "gpt-4.1", Enabled: true},
preferredConfig,
}, nil)
server := titleOverrideTestServer(db, logger)
model, gotConfig, _, err := server.resolveManualTitleModel(
ctx,
db,
chat,
chatprovider.ProviderAPIKeys{ByProvider: map[string]string{"openai": "test-key"}},
)
require.NoError(t, err)
require.NotNil(t, model)
require.Equal(t, preferredConfig, gotConfig)
}
func TestResolveManualTitleModel_TitleGenerationOverrideSetUsable(t *testing.T) {
t.Parallel()
ctx := testutil.Context(t, testutil.WaitShort)
ctrl := gomock.NewController(t)
db := dbmock.NewMockStore(ctrl)
logger := slogtest.Make(t, &slogtest.Options{IgnoreErrors: true})
chat, _ := titleOverrideTestChatAndMessages(t)
overrideConfig := titleOverrideModelConfig("gpt-4.1", true)
db.EXPECT().GetChatTitleGenerationModelOverride(gomock.Any()).Return(overrideConfig.ID.String(), nil)
db.EXPECT().GetChatModelConfigByID(gomock.Any(), overrideConfig.ID).Return(overrideConfig, nil)
db.EXPECT().GetAIProviders(gomock.Any(), gomock.Any()).Return([]database.AIProvider{{Type: database.AiProviderTypeOpenai, Enabled: true}}, nil)
db.EXPECT().GetAIProviderKeysByProviderIDs(gomock.Any(), gomock.Any()).Return(nil, nil).AnyTimes()
server := titleOverrideTestServer(db, logger)
model, gotConfig, _, err := server.resolveManualTitleModel(
ctx,
db,
chat,
chatprovider.ProviderAPIKeys{ByProvider: map[string]string{"openai": "test-key"}},
)
require.NoError(t, err)
require.NotNil(t, model)
require.Equal(t, overrideConfig, gotConfig)
}
func TestResolveManualTitleModel_TitleGenerationOverrideMissingCredentials(t *testing.T) {
t.Parallel()
ctx := testutil.Context(t, testutil.WaitShort)
ctrl := gomock.NewController(t)
db := dbmock.NewMockStore(ctrl)
logger := slogtest.Make(t, &slogtest.Options{IgnoreErrors: true})
chat, _ := titleOverrideTestChatAndMessages(t)
overrideConfig := titleOverrideModelConfig("gpt-4.1", true)
db.EXPECT().GetChatTitleGenerationModelOverride(gomock.Any()).Return(overrideConfig.ID.String(), nil)
db.EXPECT().GetChatModelConfigByID(gomock.Any(), overrideConfig.ID).Return(overrideConfig, nil)
db.EXPECT().GetAIProviders(gomock.Any(), gomock.Any()).Return([]database.AIProvider{{Type: database.AiProviderTypeOpenai, Enabled: true}}, nil)
db.EXPECT().GetAIProviderKeysByProviderIDs(gomock.Any(), gomock.Any()).Return(nil, nil).AnyTimes()
server := titleOverrideTestServer(db, logger)
model, gotConfig, _, err := server.resolveManualTitleModel(
ctx,
db,
chat,
chatprovider.ProviderAPIKeys{},
)
require.Error(t, err)
require.ErrorContains(t, err, "resolve manual title generation model override")
require.ErrorContains(t, err, "credentials are unavailable")
require.Nil(t, model)
require.Equal(t, database.ChatModelConfig{}, gotConfig)
}
func TestResolveManualTitleModel_TitleGenerationOverrideSetUnusable(t *testing.T) {
t.Parallel()
ctx := testutil.Context(t, testutil.WaitShort)
ctrl := gomock.NewController(t)
db := dbmock.NewMockStore(ctrl)
logger := slogtest.Make(t, &slogtest.Options{IgnoreErrors: true})
chat, _ := titleOverrideTestChatAndMessages(t)
overrideConfig := titleOverrideModelConfig("gpt-4.1", false)
db.EXPECT().GetChatTitleGenerationModelOverride(gomock.Any()).Return(overrideConfig.ID.String(), nil)
db.EXPECT().GetChatModelConfigByID(gomock.Any(), overrideConfig.ID).Return(overrideConfig, nil)
server := titleOverrideTestServer(db, logger)
model, gotConfig, _, err := server.resolveManualTitleModel(
ctx,
db,
chat,
chatprovider.ProviderAPIKeys{ByProvider: map[string]string{"openai": "test-key"}},
)
require.Error(t, err)
require.ErrorContains(t, err, "resolve manual title generation model override")
require.ErrorContains(t, err, "title generation model override is unavailable")
require.Nil(t, model)
require.Equal(t, database.ChatModelConfig{}, gotConfig)
}
func titleOverrideTestChatAndMessages(t *testing.T) (database.Chat, []database.ChatMessage) {
t.Helper()
userPrompt := "review pull request 123 and fix comments"
chat := database.Chat{
ID: uuid.New(),
OwnerID: uuid.New(),
Title: fallbackChatTitle(userPrompt),
}
message := mustChatMessage(
t,
database.ChatMessageRoleUser,
database.ChatMessageVisibilityBoth,
codersdk.ChatMessageText(userPrompt),
)
message.ID = 1
return chat, []database.ChatMessage{message}
}
func titleOverrideTestServer(db database.Store, logger slog.Logger) *Server {
return &Server{
db: db,
logger: logger,
configCache: newChatConfigCache(context.Background(), db, quartz.NewReal()),
}
}
func titleOverrideModelConfig(model string, enabled bool) database.ChatModelConfig {
return database.ChatModelConfig{
ID: uuid.New(),
Provider: "openai",
Model: model,
Enabled: enabled,
}
}
func titleOverrideOpenAIKeys(serverURL string) chatprovider.ProviderAPIKeys {
return chatprovider.ProviderAPIKeys{
ByProvider: map[string]string{
"openai": "test-key",
},
BaseURLByProvider: map[string]string{
"openai": serverURL,
},
}
}
func chatWithTitle(chat database.Chat, title string) database.Chat {
chat.Title = title
return chat
}