package upstreamimpl

import (
	"context"
	"errors"
	"fmt"
	"net/http"
	"net/http/httptest"
	"net/url"
	"strings"
	"testing"
	"time"

	"git.5iot.com/iotlcm-public/iotlcm-upstream-chan/internal/model"
	"git.5iot.com/iotlcm-public/iotlcm-upstream-chan/internal/model/entity"
)

func TestYdLegacyPollingHardDeadlineCancelsInflightRequest(t *testing.T) {
	defer shortenYdBatchPoll(50 * time.Millisecond)()
	server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
		select {
		case <-r.Context().Done():
		case <-time.After(time.Second):
			_, _ = w.Write([]byte(`{"status":"0","result":[{"jobStatus":"1"}]}`))
		}
	}))
	defer server.Close()
	started := time.Now()
	result := queryBatchResultYD(context.Background(), newYdApnChannelWithServer(server), "deadline-job")
	if result.finished || time.Since(started) > 500*time.Millisecond || !strings.Contains(result.reason, "deadline") {
		t.Fatalf("轮询没有硬截止：elapsed=%s result=%+v", time.Since(started), result)
	}
}

func TestYdAsyncCheckpointFailureStopsFurtherCarrierWrites(t *testing.T) {
	for _, tc := range []struct {
		name      string
		keys      []*model.SimKey
		firstPath string
		firstLen  int
	}{
		{name: "single_then_single", keys: ydSimKeysWithMsisdn(2), firstPath: ydCommunicationServicePath, firstLen: 1},
		{name: "batch_then_single", keys: func() []*model.SimKey {
			keys := ydSimKeysWithMsisdn(11)
			keys[10].MSISDN = ""
			return keys
		}(), firstPath: ydCommunicationFunctionBatchPath, firstLen: 10},
	} {
		t.Run(tc.name, func(t *testing.T) {
			capture := &ydApnCapture{}
			channel, closeServer := newYdApnTestChannel(capture)
			defer closeServer()
			sentinel := errors.New("checkpoint unavailable")
			checkpoints := 0
			ctx := context.WithValue(context.Background(), model.ApnOperationCheckpointKey{}, func(output model.SimCardOperateChangeApnOutput) error {
				checkpoints++
				if len(output) != tc.firstLen {
					t.Errorf("checkpoint contains %d results, want %d", len(output), tc.firstLen)
				}
				return sentinel
			})
			items, err := changeSimApnFunctionYD(ctx, channel, &model.SimCardOperateChangeApnInput{
				SimKeys: tc.keys, ReqData: model.SimCardOperateChangeApnInputItem{OperType: "0", SubmitOnly: true, OperationID: "test-operation"},
			})
			if !errors.Is(err, sentinel) || checkpoints != 1 || len(items) != tc.firstLen {
				t.Fatalf("checkpoint failure not propagated: err=%v checkpoints=%d items=%d", err, checkpoints, len(items))
			}
			if len(capture.paths) != 1 || !strings.HasSuffix(capture.paths[0], tc.firstPath) {
				t.Fatalf("wrote another carrier request after checkpoint failure: %v", capture.paths)
			}
		})
	}
}

func TestYdAsyncSubmitReturnsJobWithoutQuery(t *testing.T) {
	capture := &ydApnCapture{}
	channel, closeServer := newYdApnTestChannel(capture)
	defer closeServer()
	checkpoints := 0
	ctx := context.WithValue(context.Background(), model.ApnOperationCheckpointKey{}, func(output model.SimCardOperateChangeApnOutput) error {
		checkpoints++
		if output[0].ResData.OrderNum != "JOB1" {
			t.Fatal("checkpoint缺少jobId")
		}
		return nil
	})
	items, err := changeSimApnFunctionYD(ctx, channel, &model.SimCardOperateChangeApnInput{
		SimKeys: ydSimKeysWithMsisdn(100),
		ReqData: model.SimCardOperateChangeApnInputItem{OperType: "1", SubmitOnly: true},
	})
	if checkpoints != 1 {
		t.Fatalf("拿jobId后未立即持久化：%d", checkpoints)
	}
	if err != nil || len(items) != 100 || len(capture.paths) != 1 {
		t.Fatalf("提交应仅调用一次，items=%d paths=%v err=%v", len(items), capture.paths, err)
	}
	for _, item := range items {
		if !item.ResData.Pending || item.ResData.OrderNum != "JOB1" || item.ResData.Uncertain {
			t.Fatalf("受理状态错误：%+v", item)
		}
	}
}

func TestYdAsyncQueryOnlyOnceAndPreservesReason(t *testing.T) {
	for _, body := range []string{
		`{"status":"13012","message":"查询限流"}`,
		`{"status":"0","result":[{"jobStatus":"1"}]}`,
		`invalid-json`,
		`{"status":"0","result":[]}`,
	} {
		t.Run(body, func(t *testing.T) {
			calls := 0
			server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
				calls++
				if !strings.Contains(r.URL.Path, "sim-batch-result") || r.URL.Query().Get("jobId") != "persisted-job" {
					t.Errorf("不应重新提交：%s", r.URL.String())
				}
				_, _ = w.Write([]byte(body))
			}))
			defer server.Close()
			items, err := changeSimApnFunctionYD(context.Background(), newYdApnChannelWithServer(server), &model.SimCardOperateChangeApnInput{
				SimKeys: ydSimKeysWithMsisdn(10), ReqData: model.SimCardOperateChangeApnInputItem{QueryJobID: "persisted-job"},
			})
			if err != nil || calls != 1 || len(items) != 10 {
				t.Fatalf("查询次数错误：calls=%d err=%v", calls, err)
			}
			for _, item := range items {
				if !item.ResData.Pending || item.Message == "" || item.ResData.OrderNum != "persisted-job" {
					t.Fatalf("应保留待查状态和具体原因：%+v", item)
				}
			}
		})
	}
}

func TestYdAsyncSubmitUnknownIsNotConfirmedFailure(t *testing.T) {
	for _, body := range []string{`{"status":"0","result":[]}`, `not-json`, `{}`, `{"status":"bad"}`} {
		t.Run(body, func(t *testing.T) {
			server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
				_, _ = w.Write([]byte(body))
			}))
			defer server.Close()
			items, err := changeSimApnFunctionYD(context.Background(), newYdApnChannelWithServer(server), &model.SimCardOperateChangeApnInput{
				SimKeys: ydSimKeysWithMsisdn(10), ReqData: model.SimCardOperateChangeApnInputItem{OperType: "1", SubmitOnly: true},
			})
			if err != nil || len(items) != 10 {
				t.Fatalf("未知提交结果应逐卡返回：%v", err)
			}
			for _, item := range items {
				if !item.ResData.Uncertain || item.Message == "" {
					t.Fatalf("提交结果未知不得确认办理失败：%+v", item)
				}
			}
		})
	}
}

func TestYdAsyncQueryTerminalResults(t *testing.T) {
	keys := ydSimKeysWithMsisdn(10)
	for _, tc := range []struct{ status, want string }{{"2", "0"}, {"3", "4001"}, {"4", "failed"}} {
		t.Run(tc.status, func(t *testing.T) {
			calls := 0
			server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
				calls++
				if !strings.Contains(r.URL.Path, "sim-batch-result") {
					t.Error("查询不得提交")
				}
				_, _ = fmt.Fprintf(w, `{"status":"0","message":"任务完成","result":[{"jobStatus":%q,"resultList":[{"resultId":%q,"status":%q,"message":"逐卡结果"}]}]}`, tc.status, keys[0].MSISDN, tc.want)
			}))
			defer server.Close()
			items, err := newYdApnChannelWithServer(server).QuerySimApnFunctionResult(context.Background(), &model.SimCardOperateChangeApnInput{SimKeys: keys, ReqData: model.SimCardOperateChangeApnInputItem{QueryJobID: "job"}})
			if err != nil || calls != 1 || len(items) != 10 {
				t.Fatalf("终态查询错误：%v", err)
			}
			if items[0].ResData.Pending || items[0].ResData.Uncertain {
				t.Fatalf("已确认结果仍标未知：%+v", items[0])
			}
			if tc.status == "2" && items[0].Code != 0 {
				t.Fatal("成功结果未映射")
			}
			if tc.status == "3" && items[0].Code != 4001 {
				t.Fatal("逐卡失败原因未映射")
			}
			if tc.status == "4" && items[0].Code == 0 {
				t.Fatal("任务失败误报成功")
			}
		})
	}
}

func TestYdAsyncMalformedCardStatusIsUnconfirmed(t *testing.T) {
	keys := ydSimKeysWithMsisdn(1)
	cards := toYdBatchCardMap([]ydBatchResultItem{{ResultId: keys[0].MSISDN, Status: "invalid", Message: "bad status"}})
	items := mapYdQueryResult(keys, "job", ydBatchQueryResult{finished: true, cards: cards})
	if !items[0].ResData.Uncertain || items[0].Code == 0 || !strings.Contains(items[0].Message, "invalid") {
		t.Fatalf("无效状态不能按成功处理：%+v", items[0])
	}
}

func TestYdAsyncMissingCardRemainsUnconfirmed(t *testing.T) {
	keys := ydSimKeysWithMsisdn(2)
	items := mapYdQueryResult(keys, "job", ydBatchQueryResult{finished: true, cards: map[string]ydBatchCardResult{keys[0].MSISDN: {code: 0}}})
	if items[0].Code != 0 || !items[1].ResData.Uncertain || items[1].ResData.OrderNum != "job" {
		t.Fatalf("缺失结果应待核对：%+v", items)
	}
}

func TestYdCommunicationBusinessType(t *testing.T) {
	for _, tc := range []struct {
		in    string
		want  string
		valid bool
	}{
		{"0", "0", true}, // 平台 开 -> 7.2.1 businessType 开（同向）
		{"1", "1", true}, // 平台 停 -> 7.2.1 businessType 停
		{"", "", false},
		{"2", "", false},
	} {
		got, ok := convertYdCommunicationBusinessType(context.Background(), tc.in)
		if got != tc.want || ok != tc.valid {
			t.Errorf("businessType(%q) = (%q,%v), want (%q,%v)", tc.in, got, ok, tc.want, tc.valid)
		}
	}
}

func TestYdCommunicationOperType(t *testing.T) {
	for _, tc := range []struct {
		in    string
		want  string
		valid bool
	}{
		{"0", "1", true}, // 平台 开 -> 7.2.2 恢复（翻转）
		{"1", "0", true}, // 平台 停 -> 7.2.2 暂停
		{"", "", false},
		{"9", "", false},
	} {
		got, ok := convertYdCommunicationOperType(context.Background(), tc.in)
		if got != tc.want || ok != tc.valid {
			t.Errorf("operType(%q) = (%q,%v), want (%q,%v)", tc.in, got, ok, tc.want, tc.valid)
		}
	}
}

type ydApnCapture struct {
	paths   []string
	query   []url.Values
	msisdns string
}

// shortenYdBatchPoll 把批量结果轮询周期压缩到毫秒级，返回恢复函数。
func shortenYdBatchPoll(timeout time.Duration) func() {
	oldInterval, oldTimeout := ydBatchResultPollInterval, ydBatchResultPollTimeout
	ydBatchResultPollInterval, ydBatchResultPollTimeout = time.Millisecond, timeout
	return func() { ydBatchResultPollInterval, ydBatchResultPollTimeout = oldInterval, oldTimeout }
}

func newYdApnChannelWithServer(server *httptest.Server) *sSimYD {
	return &sSimYD{
		channelConfig: &model.SimChannelConfigItemCache{Channel: &entity.TSimChannels{ChanKey: "test", AppKey: "test"}},
		tokenProvider: diagnosisTestToken{},
		apiConfig:     &oneLinkAPIConfig{BaseURL: server.URL + "/v5"},
	}
}

func newYdApnTestChannel(capture *ydApnCapture) (*sSimYD, func()) {
	server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
		capture.paths = append(capture.paths, r.URL.Path)
		capture.query = append(capture.query, r.URL.Query())
		switch {
		case strings.Contains(r.URL.Path, "sim-communication-function/batch"):
			capture.msisdns = r.URL.Query().Get("msisdns")
			_, _ = w.Write([]byte(`{"status":"0","message":"正确","result":[{"jobId":"JOB1"}]}`))
		case strings.Contains(r.URL.Path, "sim-batch-result"):
			_, _ = w.Write([]byte(ydBatchResultAllSuccessBody(capture.msisdns)))
		default:
			_, _ = w.Write([]byte(`{"status":"0","message":"正确","result":[{"orderNum":"ORD1"}]}`))
		}
	}))
	return newYdApnChannelWithServer(server), server.Close
}

// ydBatchResultAllSuccessBody 依据批量请求的 msisdns 拼一个"全部成功"的结果查询响应。
func ydBatchResultAllSuccessBody(msisdns string) string {
	items := make([]string, 0)
	for _, id := range strings.Split(msisdns, "_") {
		id = strings.TrimSpace(id)
		if id == "" {
			continue
		}
		items = append(items, fmt.Sprintf(`{"status":"0","message":"正确","resultType":"1","resultId":%q}`, id))
	}
	return fmt.Sprintf(`{"status":"0","message":"正确","result":[{"jobStatus":"2","resultList":[%s]}]}`, strings.Join(items, ","))
}

func ydSimKeysWithMsisdn(n int) []*model.SimKey {
	keys := make([]*model.SimKey, 0, n)
	for i := 0; i < n; i++ {
		keys = append(keys, &model.SimKey{
			ICCID:  fmt.Sprintf("898604F41523911%05d", i),
			MSISDN: fmt.Sprintf("14415436%05d", i),
			IMSI:   fmt.Sprintf("46008743601%05d", i),
		})
	}
	return keys
}

func ydApnCounts(paths []string) (batch, single, query int) {
	for _, p := range paths {
		switch {
		case strings.Contains(p, "sim-communication-function/batch"):
			batch++
		case strings.Contains(p, "sim-batch-result"):
			query++
		default:
			single++
		}
	}
	return
}

// 少于 10 张：逐张走 7.2.1 单卡。
func TestYdApnChangeSmallBatchUsesSingle(t *testing.T) {
	defer shortenYdBatchPoll(2 * time.Second)()
	capture := &ydApnCapture{}
	sim, closeFn := newYdApnTestChannel(capture)
	defer closeFn()

	out, err := sim.ChangeSimApnFunction(context.Background(), &model.SimCardOperateChangeApnInput{
		SimKeys: ydSimKeysWithMsisdn(5),
		ReqData: model.SimCardOperateChangeApnInputItem{OperType: "0", ApnName: "CMIOT"},
	})
	if err != nil {
		t.Fatal(err)
	}
	if len(capture.paths) != 5 {
		t.Fatalf("expected 5 single calls, got %d (%v)", len(capture.paths), capture.paths)
	}
	for i, p := range capture.paths {
		if p != "/v5/ec/manage/sim-communication-service" {
			t.Fatalf("call %d unexpected path %s", i, p)
		}
		q := capture.query[i]
		if q.Get("functionType") != "01" || q.Get("businessType") != "0" || q.Get("apn") != "CMIOT" {
			t.Fatalf("call %d unexpected query %v", i, q)
		}
		if q.Get("iccid") == "" || q.Get("transid") == "" {
			t.Fatalf("call %d missing iccid/transid: %v", i, q)
		}
	}
	if len(out) != 5 || out[0].Code != 0 || out[0].ResData.OrderNum != "ORD1" {
		t.Fatalf("unexpected output %+v", out)
	}
}

// 10~100 张：一次走 7.2.2 批量，open 翻成 operType=1；受理后必须回查结果。
func TestYdApnChangeTenToHundredUsesBatch(t *testing.T) {
	defer shortenYdBatchPoll(2 * time.Second)()
	for _, n := range []int{10, 100} {
		capture := &ydApnCapture{}
		sim, closeFn := newYdApnTestChannel(capture)

		out, err := sim.ChangeSimApnFunction(context.Background(), &model.SimCardOperateChangeApnInput{
			SimKeys: ydSimKeysWithMsisdn(n),
			ReqData: model.SimCardOperateChangeApnInputItem{OperType: "0", ApnName: "CMIOT"},
		})
		if err != nil {
			t.Fatal(err)
		}
		batch, single, query := ydApnCounts(capture.paths)
		if batch != 1 || single != 0 || query == 0 {
			t.Fatalf("n=%d expected 1 batch + result query, got batch=%d single=%d query=%d (%v)", n, batch, single, query, capture.paths)
		}
		q := capture.query[0]
		if q.Get("serviceType") != "11" || q.Get("operType") != "1" || q.Get("apnName") != "CMIOT" {
			t.Fatalf("n=%d unexpected batch query %v", n, q)
		}
		if got := len(strings.Split(q.Get("msisdns"), "_")); got != n {
			t.Fatalf("n=%d msisdns count = %d", n, got)
		}
		if len(out) != n || out[0].Code != 0 || out[0].ResData.OrderNum != "JOB1" {
			t.Fatalf("n=%d unexpected output %+v", n, out)
		}
		closeFn()
	}
}

// 批量任务部分失败：结果查询返回的失败项必须如实回填，不能整批记成功。
func TestYdApnChangeBatchReflectsPartialFailure(t *testing.T) {
	defer shortenYdBatchPoll(2 * time.Second)()

	keys := ydSimKeysWithMsisdn(10)
	failId := keys[3].MSISDN
	server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
		switch {
		case strings.Contains(r.URL.Path, "sim-communication-function/batch"):
			_, _ = w.Write([]byte(`{"status":"0","message":"正确","result":[{"jobId":"JOB9"}]}`))
		case strings.Contains(r.URL.Path, "sim-batch-result"):
			items := make([]string, 0, len(keys))
			for _, k := range keys {
				if k.MSISDN == failId {
					items = append(items, fmt.Sprintf(`{"status":"12047","message":"用户该服务已经是暂停状态，不能重复暂停","resultType":"1","resultId":%q}`, k.MSISDN))
					continue
				}
				items = append(items, fmt.Sprintf(`{"status":"0","message":"正确","resultType":"1","resultId":%q}`, k.MSISDN))
			}
			_, _ = w.Write([]byte(fmt.Sprintf(`{"status":"0","message":"正确","result":[{"jobStatus":"3","resultList":[%s]}]}`, strings.Join(items, ","))))
		default:
			t.Fatalf("unexpected path %s", r.URL.Path)
		}
	}))
	defer server.Close()

	out, err := newYdApnChannelWithServer(server).ChangeSimApnFunction(context.Background(), &model.SimCardOperateChangeApnInput{
		SimKeys: keys,
		ReqData: model.SimCardOperateChangeApnInputItem{OperType: "0", ApnName: "CMIOT"},
	})
	if err != nil {
		t.Fatal(err)
	}
	if len(out) != 10 {
		t.Fatalf("output len = %d, want 10", len(out))
	}
	failed := 0
	for _, item := range out {
		if item.Code != 0 {
			failed++
			if !strings.Contains(item.Message, "不能重复暂停") {
				t.Fatalf("unexpected failure message %q", item.Message)
			}
		}
	}
	if failed != 1 {
		t.Fatalf("failed count = %d, want 1 (%+v)", failed, out)
	}
}

// 轮询超时：未取得终态时按失败记录，并注明"未确认"，避免误报成功。
func TestYdApnChangeBatchResultTimeout(t *testing.T) {
	defer shortenYdBatchPoll(20 * time.Millisecond)()

	server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
		switch {
		case strings.Contains(r.URL.Path, "sim-communication-function/batch"):
			_, _ = w.Write([]byte(`{"status":"0","message":"正确","result":[{"jobId":"JOB5"}]}`))
		case strings.Contains(r.URL.Path, "sim-batch-result"):
			_, _ = w.Write([]byte(`{"status":"0","message":"正确","result":[{"jobStatus":"1","resultList":[]}]}`))
		default:
			t.Fatalf("unexpected path %s", r.URL.Path)
		}
	}))
	defer server.Close()

	out, err := newYdApnChannelWithServer(server).ChangeSimApnFunction(context.Background(), &model.SimCardOperateChangeApnInput{
		SimKeys: ydSimKeysWithMsisdn(10),
		ReqData: model.SimCardOperateChangeApnInputItem{OperType: "0", ApnName: "CMIOT"},
	})
	if err != nil {
		t.Fatal(err)
	}
	if len(out) != 10 {
		t.Fatalf("output len = %d, want 10", len(out))
	}
	for _, item := range out {
		if item.Code == 0 {
			t.Fatalf("timeout must not be reported as success: %+v", item)
		}
		if !strings.Contains(item.Message, "查询上游通信结果失败") {
			t.Fatalf("unexpected timeout message %q", item.Message)
		}
	}
}

// 停用数据：批量 operType 翻成 0，单卡 businessType=1。
func TestYdApnChangeStopDirection(t *testing.T) {
	defer shortenYdBatchPoll(2 * time.Second)()
	capture := &ydApnCapture{}
	sim, closeFn := newYdApnTestChannel(capture)
	defer closeFn()

	if _, err := sim.ChangeSimApnFunction(context.Background(), &model.SimCardOperateChangeApnInput{
		SimKeys: ydSimKeysWithMsisdn(10),
		ReqData: model.SimCardOperateChangeApnInputItem{OperType: "1", ApnName: "CMIOT"},
	}); err != nil {
		t.Fatal(err)
	}
	capture2 := &ydApnCapture{}
	sim2, closeFn2 := newYdApnTestChannel(capture2)
	defer closeFn2()
	if _, err := sim2.ChangeSimApnFunction(context.Background(), &model.SimCardOperateChangeApnInput{
		SimKeys: ydSimKeysWithMsisdn(3),
		ReqData: model.SimCardOperateChangeApnInputItem{OperType: "1", ApnName: "CMIOT"},
	}); err != nil {
		t.Fatal(err)
	}
	if capture.query[0].Get("operType") != "0" {
		t.Fatalf("batch stop operType = %q, want 0", capture.query[0].Get("operType"))
	}
	if capture2.query[0].Get("businessType") != "1" {
		t.Fatalf("single stop businessType = %q, want 1", capture2.query[0].Get("businessType"))
	}
}

// 超过 100 张：按 100 拆块，不足 10 的尾块退回单卡。
func TestYdApnChangeOverHundredSplits(t *testing.T) {
	defer shortenYdBatchPoll(2 * time.Second)()
	capture := &ydApnCapture{}
	sim, closeFn := newYdApnTestChannel(capture)
	defer closeFn()

	out, err := sim.ChangeSimApnFunction(context.Background(), &model.SimCardOperateChangeApnInput{
		SimKeys: ydSimKeysWithMsisdn(105),
		ReqData: model.SimCardOperateChangeApnInputItem{OperType: "0", ApnName: "CMIOT"},
	})
	if err != nil {
		t.Fatal(err)
	}
	batch, single, _ := ydApnCounts(capture.paths)
	if batch != 1 || single != 5 {
		t.Fatalf("expected 1 batch + 5 singles, got batch=%d single=%d (%v)", batch, single, capture.paths)
	}
	if len(out) != 105 {
		t.Fatalf("output len = %d, want 105", len(out))
	}
}

// 批量里有卡缺 msisdn：缺号降级走 7.2.1，其余凑够 10 张仍走 7.2.2。
func TestYdApnChangeMissingMsisdnFallsBackToSingle(t *testing.T) {
	defer shortenYdBatchPoll(2 * time.Second)()
	capture := &ydApnCapture{}
	sim, closeFn := newYdApnTestChannel(capture)
	defer closeFn()

	keys := ydSimKeysWithMsisdn(15)
	keys[0].MSISDN = ""
	keys[5].MSISDN = ""
	keys[14].MSISDN = ""

	out, err := sim.ChangeSimApnFunction(context.Background(), &model.SimCardOperateChangeApnInput{
		SimKeys: keys,
		ReqData: model.SimCardOperateChangeApnInputItem{OperType: "0", ApnName: "CMIOT"},
	})
	if err != nil {
		t.Fatal(err)
	}
	batch, single, _ := ydApnCounts(capture.paths)
	if batch != 1 || single != 3 {
		t.Fatalf("expected 1 batch + 3 singles, got batch=%d single=%d (%v)", batch, single, capture.paths)
	}
	if len(out) != 15 {
		t.Fatalf("output len = %d, want 15", len(out))
	}
	for _, item := range out {
		if item.Code != 0 {
			t.Fatalf("unexpected failure item %+v", item)
		}
	}
}