package main

import (
	"bytes"
	"encoding/json"
	"net/http"
	"net/http/httptest"
	"os"
	"strconv"
	"strings"
	"testing"
	"time"

	"github.com/gin-gonic/gin"
	"github.com/gorilla/websocket"
	"gorm.io/driver/sqlite"
	"gorm.io/gorm"
)

// mockAIService stands in for ai-service/ during tests -- it echoes back
// a canned response so core-backend's HTTP client code (not the Python
// service itself) is what's under test here.
func mockAIService(t *testing.T) *httptest.Server {
	t.Helper()
	server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
		switch r.URL.Path {
		case "/draft":
			var req draftRequest
			if err := json.NewDecoder(r.Body).Decode(&req); err != nil {
				w.WriteHeader(http.StatusBadRequest)
				return
			}
			w.Header().Set("Content-Type", "application/json")
			json.NewEncoder(w).Encode(draftResponse{Status: "ok", Text: "mock draft for: " + strings.Join(req.ContextLines, " | ")})
		case "/escalate/check":
			// Mirrors escalation_filter.py's rule set closely enough to
			// exercise core-backend's gating logic; the rules themselves
			// are verified against ai-service/app/escalation_filter.py directly.
			var req escalationCheckRequest
			if err := json.NewDecoder(r.Body).Decode(&req); err != nil {
				w.WriteHeader(http.StatusBadRequest)
				return
			}
			out := escalationCheckResponse{}
			switch {
			case strings.Contains(req.Text, "계좌") || strings.Contains(req.Text, "송금"):
				out = escalationCheckResponse{Escalate: true, Reason: "금전"}
			case strings.Contains(req.Text, "힘들어"):
				out = escalationCheckResponse{Escalate: true, Reason: "감정적으로 무거운 주제"}
			}
			w.Header().Set("Content-Type", "application/json")
			json.NewEncoder(w).Encode(out)
		default:
			w.WriteHeader(http.StatusNotFound)
		}
	}))
	t.Cleanup(server.Close)
	return server
}

func setupTestServer(t *testing.T) (*httptest.Server, *gorm.DB) {
	t.Helper()
	dbPath := t.TempDir() + "/test.db"
	db, err := gorm.Open(sqlite.Open(dbPath), &gorm.Config{})
	if err != nil {
		t.Fatalf("open db: %v", err)
	}
	if err := db.AutoMigrate(allModels...); err != nil {
		t.Fatalf("migrate: %v", err)
	}

	ai := &AIServiceClient{BaseURL: mockAIService(t).URL, HTTP: http.DefaultClient}

	gin.SetMode(gin.TestMode)
	router := setupRouter(db, newConnectionManager(), ai)
	server := httptest.NewServer(router)
	t.Cleanup(server.Close)
	return server, db
}

func postJSON(t *testing.T, url string, body interface{}) *http.Response {
	t.Helper()
	b, _ := json.Marshal(body)
	resp, err := http.Post(url, "application/json", bytes.NewReader(b))
	if err != nil {
		t.Fatalf("post %s: %v", url, err)
	}
	return resp
}

func setAutonomyLevel(t *testing.T, serverURL string, userID uint, level AutonomyLevel) {
	t.Helper()
	body, _ := json.Marshal(updateTwinSettingsRequest{AutonomyLevel: level})
	req, _ := http.NewRequest(http.MethodPatch, serverURL+"/users/"+strconv.FormatUint(uint64(userID), 10)+"/twin-settings", bytes.NewReader(body))
	req.Header.Set("Content-Type", "application/json")
	resp, err := http.DefaultClient.Do(req)
	if err != nil {
		t.Fatalf("set autonomy level: %v", err)
	}
	if resp.StatusCode != http.StatusOK {
		t.Fatalf("expected 200 setting autonomy level, got %d", resp.StatusCode)
	}
}

func TestHealth(t *testing.T) {
	server, _ := setupTestServer(t)
	resp, err := http.Get(server.URL + "/health")
	if err != nil {
		t.Fatal(err)
	}
	if resp.StatusCode != http.StatusOK {
		t.Fatalf("expected 200, got %d", resp.StatusCode)
	}
}

func TestSignupAndDuplicateRejected(t *testing.T) {
	server, _ := setupTestServer(t)

	resp := postJSON(t, server.URL+"/auth/signup", signupRequest{InviteCode: "abc123", DisplayName: "지우"})
	if resp.StatusCode != http.StatusOK {
		t.Fatalf("expected 200, got %d", resp.StatusCode)
	}
	var out map[string]interface{}
	json.NewDecoder(resp.Body).Decode(&out)
	if out["display_name"] != "지우" {
		t.Fatalf("unexpected body: %v", out)
	}

	dup := postJSON(t, server.URL+"/auth/signup", signupRequest{InviteCode: "abc123", DisplayName: "dup"})
	if dup.StatusCode != http.StatusConflict {
		t.Fatalf("expected 409 for duplicate invite_code, got %d", dup.StatusCode)
	}
}

func TestSendMessageToMissingConversation(t *testing.T) {
	server, _ := setupTestServer(t)
	resp := postJSON(t, server.URL+"/conversations/9999/messages", sendMessageRequest{SenderID: 1, Text: "hi"})
	if resp.StatusCode != http.StatusNotFound {
		t.Fatalf("expected 404, got %d", resp.StatusCode)
	}
}

func TestSendMessageAndWebSocketBroadcast(t *testing.T) {
	server, db := setupTestServer(t)

	signupResp := postJSON(t, server.URL+"/auth/signup", signupRequest{InviteCode: "sender1", DisplayName: "정우"})
	var user map[string]interface{}
	json.NewDecoder(signupResp.Body).Decode(&user)
	senderID := uint(user["id"].(float64))

	conv := Conversation{IsGroup: false}
	if err := db.Create(&conv).Error; err != nil {
		t.Fatalf("create conversation: %v", err)
	}

	setAutonomyLevel(t, server.URL, senderID, AutonomyL1)

	wsURL := "ws" + strings.TrimPrefix(server.URL, "http") + "/ws/conversations/" +
		strconv.FormatUint(uint64(conv.ID), 10)
	ws, _, err := websocket.DefaultDialer.Dial(wsURL, nil)
	if err != nil {
		t.Fatalf("dial ws: %v", err)
	}
	defer ws.Close()

	sendResp := postJSON(t, server.URL+"/conversations/"+strconv.FormatUint(uint64(conv.ID), 10)+"/messages", sendMessageRequest{
		SenderID:   senderID,
		Text:       "안녕하세요",
		SenderMode: SenderTwin,
		Approved:   true,
	})
	if sendResp.StatusCode != http.StatusOK {
		t.Fatalf("expected 200 sending message, got %d", sendResp.StatusCode)
	}

	var received map[string]interface{}
	if err := ws.ReadJSON(&received); err != nil {
		t.Fatalf("read ws message: %v", err)
	}
	if received["text"] != "안녕하세요" || received["sender_mode"] != "twin" {
		t.Fatalf("unexpected ws payload: %v", received)
	}
}

func TestTwinMessageEscalatedIsBlockedAndNotBroadcast(t *testing.T) {
	server, db := setupTestServer(t)

	signupResp := postJSON(t, server.URL+"/auth/signup", signupRequest{InviteCode: "twin1", DisplayName: "민지"})
	var user map[string]interface{}
	json.NewDecoder(signupResp.Body).Decode(&user)
	senderID := uint(user["id"].(float64))

	conv := Conversation{IsGroup: false}
	if err := db.Create(&conv).Error; err != nil {
		t.Fatalf("create conversation: %v", err)
	}

	wsURL := "ws" + strings.TrimPrefix(server.URL, "http") + "/ws/conversations/" +
		strconv.FormatUint(uint64(conv.ID), 10)
	ws, _, err := websocket.DefaultDialer.Dial(wsURL, nil)
	if err != nil {
		t.Fatalf("dial ws: %v", err)
	}
	defer ws.Close()

	resp := postJSON(t, server.URL+"/conversations/"+strconv.FormatUint(uint64(conv.ID), 10)+"/messages", sendMessageRequest{
		SenderID:   senderID,
		Text:       "계좌번호 알려줄게",
		SenderMode: SenderTwin,
	})
	if resp.StatusCode != http.StatusForbidden {
		t.Fatalf("expected 403 for escalated twin send, got %d", resp.StatusCode)
	}

	var count int64
	db.Model(&Message{}).Where("conversation_id = ?", conv.ID).Count(&count)
	if count != 0 {
		t.Fatalf("escalated twin message must not be persisted, found %d rows", count)
	}

	var logs []EscalationLog
	db.Where("conversation_id = ?", conv.ID).Find(&logs)
	if len(logs) != 1 || logs[0].Reason != "금전" {
		t.Fatalf("expected one EscalationLog row with reason 금전, got %+v", logs)
	}

	ws.SetReadDeadline(time.Now().Add(200 * time.Millisecond))
	if _, _, err := ws.ReadMessage(); err == nil {
		t.Fatal("expected no broadcast for a blocked escalated message")
	}
}

// The four tests below cover PRD.md §2.1/§2.2's L0->L1->L2 autonomy flow:
// L0 (기본값) never auto-sends, L1 requires explicit approval, L2 auto-sends
// only for whitelisted topics and otherwise behaves like L1.

func TestTwinSendBlockedAtDefaultL0(t *testing.T) {
	server, db := setupTestServer(t)

	signupResp := postJSON(t, server.URL+"/auth/signup", signupRequest{InviteCode: "twin2", DisplayName: "하늘"})
	var user map[string]interface{}
	json.NewDecoder(signupResp.Body).Decode(&user)
	senderID := uint(user["id"].(float64))

	conv := Conversation{IsGroup: false}
	if err := db.Create(&conv).Error; err != nil {
		t.Fatalf("create conversation: %v", err)
	}

	// New users default to L0 (PRD.md §2.1) -- a non-escalating twin send
	// must still be blocked, since L0 means no auto-send at all.
	resp := postJSON(t, server.URL+"/conversations/"+strconv.FormatUint(uint64(conv.ID), 10)+"/messages", sendMessageRequest{
		SenderID:   senderID,
		Text:       "ㅇㅇ 알겠어",
		SenderMode: SenderTwin,
	})
	if resp.StatusCode != http.StatusForbidden {
		t.Fatalf("expected 403 blocking twin auto-send at L0, got %d", resp.StatusCode)
	}

	var count int64
	db.Model(&Message{}).Where("conversation_id = ?", conv.ID).Count(&count)
	if count != 0 {
		t.Fatalf("L0 must never persist a twin auto-send, found %d rows", count)
	}
}

func TestTwinSendRequiresApprovalAtL1(t *testing.T) {
	server, db := setupTestServer(t)

	signupResp := postJSON(t, server.URL+"/auth/signup", signupRequest{InviteCode: "twin-l1", DisplayName: "서준"})
	var user map[string]interface{}
	json.NewDecoder(signupResp.Body).Decode(&user)
	senderID := uint(user["id"].(float64))
	setAutonomyLevel(t, server.URL, senderID, AutonomyL1)

	conv := Conversation{IsGroup: false}
	if err := db.Create(&conv).Error; err != nil {
		t.Fatalf("create conversation: %v", err)
	}
	convPath := server.URL + "/conversations/" + strconv.FormatUint(uint64(conv.ID), 10) + "/messages"

	unapproved := postJSON(t, convPath, sendMessageRequest{SenderID: senderID, Text: "ㅇㅇ 알겠어", SenderMode: SenderTwin})
	if unapproved.StatusCode != http.StatusForbidden {
		t.Fatalf("expected 403 without approval at L1, got %d", unapproved.StatusCode)
	}

	approved := postJSON(t, convPath, sendMessageRequest{SenderID: senderID, Text: "ㅇㅇ 알겠어", SenderMode: SenderTwin, Approved: true})
	if approved.StatusCode != http.StatusOK {
		t.Fatalf("expected 200 with approval at L1, got %d", approved.StatusCode)
	}

	var count int64
	db.Model(&Message{}).Where("conversation_id = ?", conv.ID).Count(&count)
	if count != 1 {
		t.Fatalf("expected exactly 1 persisted message (the approved one), got %d", count)
	}
}

func TestTwinSendAutoSendsAtL2WithWhitelistMatch(t *testing.T) {
	server, db := setupTestServer(t)

	signupResp := postJSON(t, server.URL+"/auth/signup", signupRequest{InviteCode: "twin-l2-wl", DisplayName: "가은"})
	var user map[string]interface{}
	json.NewDecoder(signupResp.Body).Decode(&user)
	senderID := uint(user["id"].(float64))
	setAutonomyLevel(t, server.URL, senderID, AutonomyL2)
	db.Create(&WhitelistRule{UserID: senderID, TopicKeyword: "저녁"})

	conv := Conversation{IsGroup: false}
	if err := db.Create(&conv).Error; err != nil {
		t.Fatalf("create conversation: %v", err)
	}

	// No approved:true -- L2 + whitelist match should auto-send without it.
	resp := postJSON(t, server.URL+"/conversations/"+strconv.FormatUint(uint64(conv.ID), 10)+"/messages", sendMessageRequest{
		SenderID: senderID, Text: "저녁 뭐 먹었어?", SenderMode: SenderTwin,
	})
	if resp.StatusCode != http.StatusOK {
		t.Fatalf("expected 200 auto-sending whitelisted topic at L2, got %d", resp.StatusCode)
	}

	var count int64
	db.Model(&Message{}).Where("conversation_id = ?", conv.ID).Count(&count)
	if count != 1 {
		t.Fatalf("expected 1 auto-sent message, got %d", count)
	}
}

func TestTwinSendRequiresApprovalAtL2WithoutWhitelistMatch(t *testing.T) {
	server, db := setupTestServer(t)

	signupResp := postJSON(t, server.URL+"/auth/signup", signupRequest{InviteCode: "twin-l2-nowl", DisplayName: "도윤"})
	var user map[string]interface{}
	json.NewDecoder(signupResp.Body).Decode(&user)
	senderID := uint(user["id"].(float64))
	setAutonomyLevel(t, server.URL, senderID, AutonomyL2)
	db.Create(&WhitelistRule{UserID: senderID, TopicKeyword: "저녁"})

	conv := Conversation{IsGroup: false}
	if err := db.Create(&conv).Error; err != nil {
		t.Fatalf("create conversation: %v", err)
	}
	convPath := server.URL + "/conversations/" + strconv.FormatUint(uint64(conv.ID), 10) + "/messages"

	// Text doesn't match any whitelist keyword -- L2 falls back to L1
	// behavior (approval required), it does not just allow or just block.
	unapproved := postJSON(t, convPath, sendMessageRequest{SenderID: senderID, Text: "주말에 영화 볼래?", SenderMode: SenderTwin})
	if unapproved.StatusCode != http.StatusForbidden {
		t.Fatalf("expected 403 for non-whitelisted topic at L2 without approval, got %d", unapproved.StatusCode)
	}

	approved := postJSON(t, convPath, sendMessageRequest{SenderID: senderID, Text: "주말에 영화 볼래?", SenderMode: SenderTwin, Approved: true})
	if approved.StatusCode != http.StatusOK {
		t.Fatalf("expected 200 for non-whitelisted topic at L2 with approval, got %d", approved.StatusCode)
	}
}

func TestEscalationOverridesAutonomyLevelAndWhitelist(t *testing.T) {
	server, db := setupTestServer(t)

	signupResp := postJSON(t, server.URL+"/auth/signup", signupRequest{InviteCode: "twin-l2-esc", DisplayName: "은서"})
	var user map[string]interface{}
	json.NewDecoder(signupResp.Body).Decode(&user)
	senderID := uint(user["id"].(float64))
	setAutonomyLevel(t, server.URL, senderID, AutonomyL2)
	// Whitelisted keyword happens to be the same word that also triggers
	// the money escalation pattern in the mock AI service.
	db.Create(&WhitelistRule{UserID: senderID, TopicKeyword: "계좌"})

	conv := Conversation{IsGroup: false}
	if err := db.Create(&conv).Error; err != nil {
		t.Fatalf("create conversation: %v", err)
	}

	resp := postJSON(t, server.URL+"/conversations/"+strconv.FormatUint(uint64(conv.ID), 10)+"/messages", sendMessageRequest{
		SenderID: senderID, Text: "계좌번호 알려줄게", SenderMode: SenderTwin, Approved: true,
	})
	if resp.StatusCode != http.StatusForbidden {
		t.Fatalf("expected 403: escalation must override L2 whitelist match and approved:true, got %d", resp.StatusCode)
	}

	var count int64
	db.Model(&Message{}).Where("conversation_id = ?", conv.ID).Count(&count)
	if count != 0 {
		t.Fatalf("escalated message must never be sent regardless of level/whitelist/approval, found %d rows", count)
	}
}

func TestHumanMessageBypassesEscalationGate(t *testing.T) {
	server, db := setupTestServer(t)

	signupResp := postJSON(t, server.URL+"/auth/signup", signupRequest{InviteCode: "human1", DisplayName: "재민"})
	var user map[string]interface{}
	json.NewDecoder(signupResp.Body).Decode(&user)
	senderID := uint(user["id"].(float64))

	conv := Conversation{IsGroup: false}
	if err := db.Create(&conv).Error; err != nil {
		t.Fatalf("create conversation: %v", err)
	}

	// A human typing their own money-related message is never gated --
	// only unattended (twin) sends are.
	resp := postJSON(t, server.URL+"/conversations/"+strconv.FormatUint(uint64(conv.ID), 10)+"/messages", sendMessageRequest{
		SenderID:   senderID,
		Text:       "계좌번호 불러줄게",
		SenderMode: SenderHuman,
	})
	if resp.StatusCode != http.StatusOK {
		t.Fatalf("expected 200 for human-authored send, got %d", resp.StatusCode)
	}
}

func TestTwinMessageFailsClosedWhenAIServiceUnreachable(t *testing.T) {
	dbPath := t.TempDir() + "/test.db"
	db, err := gorm.Open(sqlite.Open(dbPath), &gorm.Config{})
	if err != nil {
		t.Fatalf("open db: %v", err)
	}
	if err := db.AutoMigrate(allModels...); err != nil {
		t.Fatalf("migrate: %v", err)
	}

	unreachable := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {}))
	unreachable.Close() // closed immediately -- BaseURL now points at nothing listening

	ai := &AIServiceClient{BaseURL: unreachable.URL, HTTP: http.DefaultClient}
	gin.SetMode(gin.TestMode)
	router := setupRouter(db, newConnectionManager(), ai)
	server := httptest.NewServer(router)
	t.Cleanup(server.Close)

	signupResp := postJSON(t, server.URL+"/auth/signup", signupRequest{InviteCode: "twin3", DisplayName: "소연"})
	var user map[string]interface{}
	json.NewDecoder(signupResp.Body).Decode(&user)
	senderID := uint(user["id"].(float64))

	conv := Conversation{IsGroup: false}
	if err := db.Create(&conv).Error; err != nil {
		t.Fatalf("create conversation: %v", err)
	}

	resp := postJSON(t, server.URL+"/conversations/"+strconv.FormatUint(uint64(conv.ID), 10)+"/messages", sendMessageRequest{
		SenderID:   senderID,
		Text:       "ㅇㅇ 알겠어",
		SenderMode: SenderTwin,
	})
	if resp.StatusCode != http.StatusBadGateway {
		t.Fatalf("expected 502 fail-closed when escalation gate is unreachable, got %d", resp.StatusCode)
	}

	var count int64
	db.Model(&Message{}).Where("conversation_id = ?", conv.ID).Count(&count)
	if count != 0 {
		t.Fatalf("must not persist a twin message when the safety gate couldn't be checked, found %d rows", count)
	}
}

func TestDeleteUserPurgesData(t *testing.T) {
	server, db := setupTestServer(t)

	signupResp := postJSON(t, server.URL+"/auth/signup", signupRequest{InviteCode: "erase1", DisplayName: "유나"})
	var user map[string]interface{}
	json.NewDecoder(signupResp.Body).Decode(&user)
	userID := uint(user["id"].(float64))

	conv := Conversation{IsGroup: false}
	if err := db.Create(&conv).Error; err != nil {
		t.Fatalf("create conversation: %v", err)
	}
	sendResp := postJSON(t, server.URL+"/conversations/"+strconv.FormatUint(uint64(conv.ID), 10)+"/messages", sendMessageRequest{
		SenderID: userID,
		Text:     "안녕",
	})
	if sendResp.StatusCode != http.StatusOK {
		t.Fatalf("expected 200 sending message, got %d", sendResp.StatusCode)
	}
	db.Create(&WhitelistRule{UserID: userID, TopicKeyword: "저녁 약속"})
	db.Create(&EscalationLog{UserID: userID, ConversationID: conv.ID, Reason: "금전", MessageSnippet: "..."})

	req, _ := http.NewRequest(http.MethodDelete, server.URL+"/users/"+strconv.FormatUint(uint64(userID), 10), nil)
	resp, err := http.DefaultClient.Do(req)
	if err != nil {
		t.Fatalf("delete request: %v", err)
	}
	if resp.StatusCode != http.StatusOK {
		t.Fatalf("expected 200, got %d", resp.StatusCode)
	}
	var out map[string]interface{}
	json.NewDecoder(resp.Body).Decode(&out)
	if out["messages_deleted"].(float64) != 1 || out["escalation_logs_deleted"].(float64) != 1 {
		t.Fatalf("unexpected purge summary: %v", out)
	}

	var userCount, msgCount, settingsCount, whitelistCount, logCount int64
	db.Model(&User{}).Where("id = ?", userID).Count(&userCount)
	db.Model(&Message{}).Where("sender_id = ?", userID).Count(&msgCount)
	db.Model(&TwinSettings{}).Where("user_id = ?", userID).Count(&settingsCount)
	db.Model(&WhitelistRule{}).Where("user_id = ?", userID).Count(&whitelistCount)
	db.Model(&EscalationLog{}).Where("user_id = ?", userID).Count(&logCount)
	if userCount != 0 || msgCount != 0 || settingsCount != 0 || whitelistCount != 0 || logCount != 0 {
		t.Fatalf("expected all user-linked rows purged, got user=%d msg=%d settings=%d whitelist=%d log=%d",
			userCount, msgCount, settingsCount, whitelistCount, logCount)
	}

	req2, _ := http.NewRequest(http.MethodDelete, server.URL+"/users/"+strconv.FormatUint(uint64(userID), 10), nil)
	resp2, err := http.DefaultClient.Do(req2)
	if err != nil {
		t.Fatalf("second delete request: %v", err)
	}
	if resp2.StatusCode != http.StatusNotFound {
		t.Fatalf("expected 404 on repeat delete, got %d", resp2.StatusCode)
	}
}

func TestDraftMissingConversation(t *testing.T) {
	server, _ := setupTestServer(t)
	resp := postJSON(t, server.URL+"/conversations/9999/draft", draftMessageRequest{
		ContextLines:  []string{"상대: 오늘 저녁에 뭐 먹을래?"},
		StyleExamples: []string{"ㅇㅇ 좋지"},
	})
	if resp.StatusCode != http.StatusNotFound {
		t.Fatalf("expected 404, got %d", resp.StatusCode)
	}
}

func TestDraftRequiresStyleSource(t *testing.T) {
	server, db := setupTestServer(t)
	conv := Conversation{IsGroup: false}
	if err := db.Create(&conv).Error; err != nil {
		t.Fatalf("create conversation: %v", err)
	}

	resp := postJSON(t, server.URL+"/conversations/"+strconv.FormatUint(uint64(conv.ID), 10)+"/draft", draftMessageRequest{
		ContextLines: []string{"상대: 오늘 저녁에 뭐 먹을래?"},
	})
	if resp.StatusCode != http.StatusBadRequest {
		t.Fatalf("expected 400, got %d", resp.StatusCode)
	}
}

func TestDraftProxiesToAIService(t *testing.T) {
	server, db := setupTestServer(t)
	conv := Conversation{IsGroup: false}
	if err := db.Create(&conv).Error; err != nil {
		t.Fatalf("create conversation: %v", err)
	}

	resp := postJSON(t, server.URL+"/conversations/"+strconv.FormatUint(uint64(conv.ID), 10)+"/draft", draftMessageRequest{
		ContextLines:  []string{"상대: 오늘 저녁에 뭐 먹을래?"},
		StyleExamples: []string{"ㅇㅇ 좋지"},
	})
	if resp.StatusCode != http.StatusOK {
		t.Fatalf("expected 200, got %d", resp.StatusCode)
	}
	var out draftResponse
	if err := json.NewDecoder(resp.Body).Decode(&out); err != nil {
		t.Fatalf("decode response: %v", err)
	}
	if out.Status != "ok" || !strings.Contains(out.Text, "오늘 저녁에 뭐 먹을래") {
		t.Fatalf("unexpected draft response: %+v", out)
	}
}

func TestMain(m *testing.M) {
	os.Exit(m.Run())
}