mirror of
				https://github.com/tailscale/tailscale.git
				synced 2025-11-04 10:11:18 +01:00 
			
		
		
		
	Updates #11058 Change-Id: I35e7ef9b90e83cac04ca93fd964ad00ed5b48430 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
		
			
				
	
	
		
			557 lines
		
	
	
		
			20 KiB
		
	
	
	
		
			Go
		
	
	
	
	
	
			
		
		
	
	
			557 lines
		
	
	
		
			20 KiB
		
	
	
	
		
			Go
		
	
	
	
	
	
// Copyright (c) Tailscale Inc & AUTHORS
 | 
						|
// SPDX-License-Identifier: BSD-3-Clause
 | 
						|
 | 
						|
package logtail
 | 
						|
 | 
						|
import (
 | 
						|
	"bytes"
 | 
						|
	"context"
 | 
						|
	"encoding/json"
 | 
						|
	"io"
 | 
						|
	"net/http"
 | 
						|
	"net/http/httptest"
 | 
						|
	"strings"
 | 
						|
	"testing"
 | 
						|
	"time"
 | 
						|
 | 
						|
	"github.com/go-json-experiment/json/jsontext"
 | 
						|
	"tailscale.com/envknob"
 | 
						|
	"tailscale.com/tstest"
 | 
						|
	"tailscale.com/tstime"
 | 
						|
	"tailscale.com/util/must"
 | 
						|
)
 | 
						|
 | 
						|
func TestFastShutdown(t *testing.T) {
 | 
						|
	ctx, cancel := context.WithCancel(context.Background())
 | 
						|
	cancel()
 | 
						|
 | 
						|
	testServ := httptest.NewServer(http.HandlerFunc(
 | 
						|
		func(w http.ResponseWriter, r *http.Request) {}))
 | 
						|
	defer testServ.Close()
 | 
						|
 | 
						|
	l := NewLogger(Config{
 | 
						|
		BaseURL: testServ.URL,
 | 
						|
	}, t.Logf)
 | 
						|
	err := l.Shutdown(ctx)
 | 
						|
	if err != nil {
 | 
						|
		t.Error(err)
 | 
						|
	}
 | 
						|
}
 | 
						|
 | 
						|
// maximum number of times a test will call l.Write()
 | 
						|
const logLines = 3
 | 
						|
 | 
						|
type LogtailTestServer struct {
 | 
						|
	srv      *httptest.Server // Log server
 | 
						|
	uploaded chan []byte
 | 
						|
}
 | 
						|
 | 
						|
func NewLogtailTestHarness(t *testing.T) (*LogtailTestServer, *Logger) {
 | 
						|
	ts := LogtailTestServer{}
 | 
						|
 | 
						|
	// max channel backlog = 1 "started" + #logLines x "log line" + 1 "closed"
 | 
						|
	ts.uploaded = make(chan []byte, 2+logLines)
 | 
						|
 | 
						|
	ts.srv = httptest.NewServer(http.HandlerFunc(
 | 
						|
		func(w http.ResponseWriter, r *http.Request) {
 | 
						|
			body, err := io.ReadAll(r.Body)
 | 
						|
			if err != nil {
 | 
						|
				t.Error("failed to read HTTP request")
 | 
						|
			}
 | 
						|
			ts.uploaded <- body
 | 
						|
		}))
 | 
						|
 | 
						|
	t.Cleanup(ts.srv.Close)
 | 
						|
 | 
						|
	l := NewLogger(Config{BaseURL: ts.srv.URL}, t.Logf)
 | 
						|
 | 
						|
	// There is always an initial "logtail started" message
 | 
						|
	body := <-ts.uploaded
 | 
						|
	if !strings.Contains(string(body), "started") {
 | 
						|
		t.Errorf("unknown start logging statement: %q", string(body))
 | 
						|
	}
 | 
						|
 | 
						|
	return &ts, l
 | 
						|
}
 | 
						|
 | 
						|
func TestDrainPendingMessages(t *testing.T) {
 | 
						|
	ts, l := NewLogtailTestHarness(t)
 | 
						|
 | 
						|
	for range logLines {
 | 
						|
		l.Write([]byte("log line"))
 | 
						|
	}
 | 
						|
 | 
						|
	// all of the "log line" messages usually arrive at once, but poll if needed.
 | 
						|
	body := ""
 | 
						|
	for i := 0; i <= logLines; i++ {
 | 
						|
		body += string(<-ts.uploaded)
 | 
						|
		count := strings.Count(body, "log line")
 | 
						|
		if count == logLines {
 | 
						|
			break
 | 
						|
		}
 | 
						|
		// if we never find count == logLines, the test will eventually time out.
 | 
						|
	}
 | 
						|
 | 
						|
	err := l.Shutdown(context.Background())
 | 
						|
	if err != nil {
 | 
						|
		t.Error(err)
 | 
						|
	}
 | 
						|
}
 | 
						|
 | 
						|
func TestEncodeAndUploadMessages(t *testing.T) {
 | 
						|
	ts, l := NewLogtailTestHarness(t)
 | 
						|
 | 
						|
	tests := []struct {
 | 
						|
		name string
 | 
						|
		log  string
 | 
						|
		want string
 | 
						|
	}{
 | 
						|
		{
 | 
						|
			"plain text",
 | 
						|
			"log line",
 | 
						|
			"log line",
 | 
						|
		},
 | 
						|
		{
 | 
						|
			"simple JSON",
 | 
						|
			`{"text":"log line"}`,
 | 
						|
			"log line",
 | 
						|
		},
 | 
						|
	}
 | 
						|
 | 
						|
	for _, tt := range tests {
 | 
						|
		io.WriteString(l, tt.log)
 | 
						|
		body := <-ts.uploaded
 | 
						|
 | 
						|
		data := unmarshalOne(t, body)
 | 
						|
		got := data["text"]
 | 
						|
		if got != tt.want {
 | 
						|
			t.Errorf("%s: got %q; want %q", tt.name, got.(string), tt.want)
 | 
						|
		}
 | 
						|
 | 
						|
		ltail, ok := data["logtail"]
 | 
						|
		if ok {
 | 
						|
			logtailmap := ltail.(map[string]any)
 | 
						|
			_, ok = logtailmap["client_time"]
 | 
						|
			if !ok {
 | 
						|
				t.Errorf("%s: no client_time present", tt.name)
 | 
						|
			}
 | 
						|
		} else {
 | 
						|
			t.Errorf("%s: no logtail map present", tt.name)
 | 
						|
		}
 | 
						|
	}
 | 
						|
 | 
						|
	err := l.Shutdown(context.Background())
 | 
						|
	if err != nil {
 | 
						|
		t.Error(err)
 | 
						|
	}
 | 
						|
}
 | 
						|
 | 
						|
func TestLoggerWriteLength(t *testing.T) {
 | 
						|
	lg := &Logger{
 | 
						|
		clock:  tstime.StdClock{},
 | 
						|
		buffer: NewMemoryBuffer(1024),
 | 
						|
	}
 | 
						|
	inBuf := []byte("some text to encode")
 | 
						|
	n, err := lg.Write(inBuf)
 | 
						|
	if err != nil {
 | 
						|
		t.Error(err)
 | 
						|
	}
 | 
						|
	if n != len(inBuf) {
 | 
						|
		t.Errorf("logger.Write wrote %d bytes, expected %d", n, len(inBuf))
 | 
						|
	}
 | 
						|
}
 | 
						|
 | 
						|
func TestParseAndRemoveLogLevel(t *testing.T) {
 | 
						|
	tests := []struct {
 | 
						|
		log       string
 | 
						|
		wantLevel int
 | 
						|
		wantLog   string
 | 
						|
	}{
 | 
						|
		{
 | 
						|
			"no level",
 | 
						|
			0,
 | 
						|
			"no level",
 | 
						|
		},
 | 
						|
		{
 | 
						|
			"[v1] level 1",
 | 
						|
			1,
 | 
						|
			"level 1",
 | 
						|
		},
 | 
						|
		{
 | 
						|
			"level 1 [v1] ",
 | 
						|
			1,
 | 
						|
			"level 1 ",
 | 
						|
		},
 | 
						|
		{
 | 
						|
			"[v2] level 2",
 | 
						|
			2,
 | 
						|
			"level 2",
 | 
						|
		},
 | 
						|
		{
 | 
						|
			"level [v2] 2",
 | 
						|
			2,
 | 
						|
			"level 2",
 | 
						|
		},
 | 
						|
		{
 | 
						|
			"[v3] no level 3",
 | 
						|
			0,
 | 
						|
			"[v3] no level 3",
 | 
						|
		},
 | 
						|
		{
 | 
						|
			"some ignored text then [v\x00JSON]5{\"foo\":1234}",
 | 
						|
			5,
 | 
						|
			`{"foo":1234}`,
 | 
						|
		},
 | 
						|
	}
 | 
						|
 | 
						|
	for _, tt := range tests {
 | 
						|
		gotLevel, gotLog := parseAndRemoveLogLevel([]byte(tt.log))
 | 
						|
		if gotLevel != tt.wantLevel {
 | 
						|
			t.Errorf("parseAndRemoveLogLevel(%q): got:%d; want %d",
 | 
						|
				tt.log, gotLevel, tt.wantLevel)
 | 
						|
		}
 | 
						|
		if string(gotLog) != tt.wantLog {
 | 
						|
			t.Errorf("parseAndRemoveLogLevel(%q): got:%q; want %q",
 | 
						|
				tt.log, gotLog, tt.wantLog)
 | 
						|
		}
 | 
						|
	}
 | 
						|
}
 | 
						|
 | 
						|
func unmarshalOne(t *testing.T, body []byte) map[string]any {
 | 
						|
	t.Helper()
 | 
						|
	var entries []map[string]any
 | 
						|
	err := json.Unmarshal(body, &entries)
 | 
						|
	if err != nil {
 | 
						|
		t.Error(err)
 | 
						|
	}
 | 
						|
	if len(entries) != 1 {
 | 
						|
		t.Fatalf("expected one entry, got %d", len(entries))
 | 
						|
	}
 | 
						|
	return entries[0]
 | 
						|
}
 | 
						|
 | 
						|
type simpleMemBuf struct {
 | 
						|
	Buffer
 | 
						|
	buf bytes.Buffer
 | 
						|
}
 | 
						|
 | 
						|
func (b *simpleMemBuf) Write(p []byte) (n int, err error) { return b.buf.Write(p) }
 | 
						|
 | 
						|
func TestEncode(t *testing.T) {
 | 
						|
	tests := []struct {
 | 
						|
		in   string
 | 
						|
		want string
 | 
						|
	}{
 | 
						|
		{
 | 
						|
			"normal",
 | 
						|
			`{"logtail":{"client_time":"1970-01-01T00:02:03.000000456Z","proc_id":7,"proc_seq":1},"text":"normal"}` + "\n",
 | 
						|
		},
 | 
						|
		{
 | 
						|
			"and a [v1] level one",
 | 
						|
			`{"logtail":{"client_time":"1970-01-01T00:02:03.000000456Z","proc_id":7,"proc_seq":1},"v":1,"text":"and a level one"}` + "\n",
 | 
						|
		},
 | 
						|
		{
 | 
						|
			"[v2] some verbose two",
 | 
						|
			`{"logtail":{"client_time":"1970-01-01T00:02:03.000000456Z","proc_id":7,"proc_seq":1},"v":2,"text":"some verbose two"}` + "\n",
 | 
						|
		},
 | 
						|
		{
 | 
						|
			"{}",
 | 
						|
			`{"logtail":{"client_time":"1970-01-01T00:02:03.000000456Z","proc_id":7,"proc_seq":1}}` + "\n",
 | 
						|
		},
 | 
						|
		{
 | 
						|
			`{"foo":"bar"}`,
 | 
						|
			`{"logtail":{"client_time":"1970-01-01T00:02:03.000000456Z","proc_id":7,"proc_seq":1},"foo":"bar"}` + "\n",
 | 
						|
		},
 | 
						|
		{
 | 
						|
			"foo: [v\x00JSON]0{\"foo\":1}",
 | 
						|
			"{\"logtail\":{\"client_time\":\"1970-01-01T00:02:03.000000456Z\",\"proc_id\":7,\"proc_seq\":1},\"foo\":1}\n",
 | 
						|
		},
 | 
						|
		{
 | 
						|
			"foo: [v\x00JSON]2{\"foo\":1}",
 | 
						|
			"{\"logtail\":{\"client_time\":\"1970-01-01T00:02:03.000000456Z\",\"proc_id\":7,\"proc_seq\":1},\"v\":2,\"foo\":1}\n",
 | 
						|
		},
 | 
						|
	}
 | 
						|
	for _, tt := range tests {
 | 
						|
		buf := new(simpleMemBuf)
 | 
						|
		lg := &Logger{
 | 
						|
			clock:        tstest.NewClock(tstest.ClockOpts{Start: time.Unix(123, 456).UTC()}),
 | 
						|
			buffer:       buf,
 | 
						|
			procID:       7,
 | 
						|
			procSequence: 1,
 | 
						|
		}
 | 
						|
		io.WriteString(lg, tt.in)
 | 
						|
		got := buf.buf.String()
 | 
						|
		if got != tt.want {
 | 
						|
			t.Errorf("for %q,\n got: %#q\nwant: %#q\n", tt.in, got, tt.want)
 | 
						|
		}
 | 
						|
		if err := json.Compact(new(bytes.Buffer), buf.buf.Bytes()); err != nil {
 | 
						|
			t.Errorf("invalid output JSON for %q: %s", tt.in, got)
 | 
						|
		}
 | 
						|
	}
 | 
						|
}
 | 
						|
 | 
						|
// Test that even if Logger.Write modifies the input buffer, we still return the
 | 
						|
// length of the input buffer, not what we shrank it down to. Otherwise the
 | 
						|
// caller will think we did a short write, violating the io.Writer contract.
 | 
						|
func TestLoggerWriteResult(t *testing.T) {
 | 
						|
	buf := NewMemoryBuffer(100)
 | 
						|
	lg := &Logger{
 | 
						|
		clock:  tstest.NewClock(tstest.ClockOpts{Start: time.Unix(123, 0)}),
 | 
						|
		buffer: buf,
 | 
						|
	}
 | 
						|
 | 
						|
	const in = "[v1] foo"
 | 
						|
	n, err := lg.Write([]byte(in))
 | 
						|
	if err != nil {
 | 
						|
		t.Fatal(err)
 | 
						|
	}
 | 
						|
	if got, want := n, len(in); got != want {
 | 
						|
		t.Errorf("Write = %v; want %v", got, want)
 | 
						|
	}
 | 
						|
	back, err := buf.TryReadLine()
 | 
						|
	if err != nil {
 | 
						|
		t.Fatal(err)
 | 
						|
	}
 | 
						|
	if got, want := string(back), `{"logtail":{"client_time":"1970-01-01T00:02:03Z"},"v":1,"text":"foo"}`+"\n"; got != want {
 | 
						|
		t.Errorf("mismatch.\n got: %#q\nwant: %#q", back, want)
 | 
						|
	}
 | 
						|
}
 | 
						|
func TestRedact(t *testing.T) {
 | 
						|
	envknob.Setenv("TS_OBSCURE_LOGGED_IPS", "true")
 | 
						|
	tests := []struct {
 | 
						|
		in   string
 | 
						|
		want string
 | 
						|
	}{
 | 
						|
		// tests for ipv4 addresses
 | 
						|
		{
 | 
						|
			"120.100.30.47",
 | 
						|
			"120.100.x.x",
 | 
						|
		},
 | 
						|
		{
 | 
						|
			"192.167.0.1/65",
 | 
						|
			"192.167.x.x/65",
 | 
						|
		},
 | 
						|
		{
 | 
						|
			"node [5Btdd] d:e89a3384f526d251 now using 10.0.0.222:41641 mtu=1360 tx=d81a8a35a0ce",
 | 
						|
			"node [5Btdd] d:e89a3384f526d251 now using 10.0.x.x:41641 mtu=1360 tx=d81a8a35a0ce",
 | 
						|
		},
 | 
						|
		//tests for ipv6 addresses
 | 
						|
		{
 | 
						|
			"2001:0db8:85a3:0000:0000:8a2e:0370:7334",
 | 
						|
			"2001:0db8:x",
 | 
						|
		},
 | 
						|
		{
 | 
						|
			"2345:0425:2CA1:0000:0000:0567:5673:23b5",
 | 
						|
			"2345:0425:x",
 | 
						|
		},
 | 
						|
		{
 | 
						|
			"2601:645:8200:edf0::c9de/64",
 | 
						|
			"2601:645:x/64",
 | 
						|
		},
 | 
						|
		{
 | 
						|
			"node [5Btdd] d:e89a3384f526d251 now using 2051:0000:140F::875B:131C mtu=1360 tx=d81a8a35a0ce",
 | 
						|
			"node [5Btdd] d:e89a3384f526d251 now using 2051:0000:x mtu=1360 tx=d81a8a35a0ce",
 | 
						|
		},
 | 
						|
		{
 | 
						|
			"2601:645:8200:edf0::c9de/64 2601:645:8200:edf0:1ce9:b17d:71f5:f6a3/64",
 | 
						|
			"2601:645:x/64 2601:645:x/64",
 | 
						|
		},
 | 
						|
		//tests for tailscale ip addresses
 | 
						|
		{
 | 
						|
			"100.64.5.6",
 | 
						|
			"100.64.5.6",
 | 
						|
		},
 | 
						|
		{
 | 
						|
			"fd7a:115c:a1e0::/96",
 | 
						|
			"fd7a:115c:a1e0::/96",
 | 
						|
		},
 | 
						|
		//tests for ipv6 and ipv4 together
 | 
						|
		{
 | 
						|
			"192.167.0.1 2001:0db8:85a3:0000:0000:8a2e:0370:7334",
 | 
						|
			"192.167.x.x 2001:0db8:x",
 | 
						|
		},
 | 
						|
		{
 | 
						|
			"node [5Btdd] d:e89a3384f526d251 now using 10.0.0.222:41641 mtu=1360 tx=d81a8a35a0ce 2345:0425:2CA1::0567:5673:23b5",
 | 
						|
			"node [5Btdd] d:e89a3384f526d251 now using 10.0.x.x:41641 mtu=1360 tx=d81a8a35a0ce 2345:0425:x",
 | 
						|
		},
 | 
						|
		{
 | 
						|
			"100.64.5.6 2091:0db8:85a3:0000:0000:8a2e:0370:7334",
 | 
						|
			"100.64.5.6 2091:0db8:x",
 | 
						|
		},
 | 
						|
		{
 | 
						|
			"192.167.0.1 120.100.30.47 2041:0000:140F::875B:131B",
 | 
						|
			"192.167.x.x 120.100.x.x 2041:0000:x",
 | 
						|
		},
 | 
						|
		{
 | 
						|
			"fd7a:115c:a1e0::/96 192.167.0.1 2001:0db8:85a3:0000:0000:8a2e:0370:7334",
 | 
						|
			"fd7a:115c:a1e0::/96 192.167.x.x 2001:0db8:x",
 | 
						|
		},
 | 
						|
	}
 | 
						|
 | 
						|
	for _, tt := range tests {
 | 
						|
		gotBuf := redactIPs([]byte(tt.in))
 | 
						|
		if string(gotBuf) != tt.want {
 | 
						|
			t.Errorf("for %q,\n got: %#q\nwant: %#q\n", tt.in, gotBuf, tt.want)
 | 
						|
		}
 | 
						|
	}
 | 
						|
}
 | 
						|
 | 
						|
func TestAppendMetadata(t *testing.T) {
 | 
						|
	var l Logger
 | 
						|
	l.clock = tstest.NewClock(tstest.ClockOpts{Start: time.Date(2000, 01, 01, 0, 0, 0, 0, time.UTC)})
 | 
						|
	l.metricsDelta = func() string { return "metrics" }
 | 
						|
 | 
						|
	for _, tt := range []struct {
 | 
						|
		skipClientTime bool
 | 
						|
		skipMetrics    bool
 | 
						|
		procID         uint32
 | 
						|
		procSeq        uint64
 | 
						|
		errDetail      string
 | 
						|
		errData        jsontext.Value
 | 
						|
		level          int
 | 
						|
		want           string
 | 
						|
	}{
 | 
						|
		{want: `"logtail":{"client_time":"2000-01-01T00:00:00Z"},"metrics":"metrics",`},
 | 
						|
		{skipClientTime: true, want: `"metrics":"metrics",`},
 | 
						|
		{skipMetrics: true, want: `"logtail":{"client_time":"2000-01-01T00:00:00Z"},`},
 | 
						|
		{skipClientTime: true, skipMetrics: true, want: ``},
 | 
						|
		{skipClientTime: true, skipMetrics: true, procID: 1, want: `"logtail":{"proc_id":1},`},
 | 
						|
		{skipClientTime: true, skipMetrics: true, procSeq: 2, want: `"logtail":{"proc_seq":2},`},
 | 
						|
		{skipClientTime: true, skipMetrics: true, procID: 1, procSeq: 2, want: `"logtail":{"proc_id":1,"proc_seq":2},`},
 | 
						|
		{skipMetrics: true, procID: 1, procSeq: 2, want: `"logtail":{"client_time":"2000-01-01T00:00:00Z","proc_id":1,"proc_seq":2},`},
 | 
						|
		{skipClientTime: true, skipMetrics: true, errDetail: "error", want: `"logtail":{"error":{"detail":"error"}},`},
 | 
						|
		{skipClientTime: true, skipMetrics: true, errData: jsontext.Value("null"), want: `"logtail":{"error":{"bad_data":null}},`},
 | 
						|
		{skipClientTime: true, skipMetrics: true, level: 5, want: `"v":5,`},
 | 
						|
		{procID: 1, procSeq: 2, errDetail: "error", errData: jsontext.Value(`["something","bad","happened"]`), level: 2,
 | 
						|
			want: `"logtail":{"client_time":"2000-01-01T00:00:00Z","proc_id":1,"proc_seq":2,"error":{"detail":"error","bad_data":["something","bad","happened"]}},"metrics":"metrics","v":2,`},
 | 
						|
	} {
 | 
						|
		got := string(l.appendMetadata(nil, tt.skipClientTime, tt.skipMetrics, tt.procID, tt.procSeq, tt.errDetail, tt.errData, tt.level))
 | 
						|
		if got != tt.want {
 | 
						|
			t.Errorf("appendMetadata(%v, %v, %v, %v, %v, %v, %v):\n\tgot  %s\n\twant %s", tt.skipClientTime, tt.skipMetrics, tt.procID, tt.procSeq, tt.errDetail, tt.errData, tt.level, got, tt.want)
 | 
						|
		}
 | 
						|
		gotObj := "{" + strings.TrimSuffix(got, ",") + "}"
 | 
						|
		if !jsontext.Value(gotObj).IsValid() {
 | 
						|
			t.Errorf("`%s`.IsValid() = false, want true", gotObj)
 | 
						|
		}
 | 
						|
	}
 | 
						|
}
 | 
						|
 | 
						|
func TestAppendText(t *testing.T) {
 | 
						|
	var l Logger
 | 
						|
	l.clock = tstest.NewClock(tstest.ClockOpts{Start: time.Date(2000, 01, 01, 0, 0, 0, 0, time.UTC)})
 | 
						|
	l.metricsDelta = func() string { return "metrics" }
 | 
						|
	l.lowMem = true
 | 
						|
 | 
						|
	for _, tt := range []struct {
 | 
						|
		text           string
 | 
						|
		skipClientTime bool
 | 
						|
		procID         uint32
 | 
						|
		procSeq        uint64
 | 
						|
		level          int
 | 
						|
		want           string
 | 
						|
	}{
 | 
						|
		{want: `{"logtail":{"client_time":"2000-01-01T00:00:00Z"},"metrics":"metrics"}`},
 | 
						|
		{skipClientTime: true, want: `{"metrics":"metrics"}`},
 | 
						|
		{skipClientTime: true, procID: 1, procSeq: 2, want: `{"logtail":{"proc_id":1,"proc_seq":2},"metrics":"metrics"}`},
 | 
						|
		{text: "fizz buzz", want: `{"logtail":{"client_time":"2000-01-01T00:00:00Z"},"metrics":"metrics","text":"fizz buzz"}`},
 | 
						|
		{text: "\b\f\n\r\t\"\\", want: `{"logtail":{"client_time":"2000-01-01T00:00:00Z"},"metrics":"metrics","text":"\b\f\n\r\t\"\\"}`},
 | 
						|
		{text: "x" + strings.Repeat("😐", maxSize), want: `{"logtail":{"client_time":"2000-01-01T00:00:00Z"},"metrics":"metrics","text":"x` + strings.Repeat("😐", 1023) + `…+1044484"}`},
 | 
						|
	} {
 | 
						|
		got := string(l.appendText(nil, []byte(tt.text), tt.skipClientTime, tt.procID, tt.procSeq, tt.level))
 | 
						|
		if !strings.HasSuffix(got, "\n") {
 | 
						|
			t.Errorf("`%s` does not end with a newline", got)
 | 
						|
		}
 | 
						|
		got = got[:len(got)-1]
 | 
						|
		if got != tt.want {
 | 
						|
			t.Errorf("appendText(%v, %v, %v, %v, %v):\n\tgot  %s\n\twant %s", tt.text[:min(len(tt.text), 256)], tt.skipClientTime, tt.procID, tt.procSeq, tt.level, got, tt.want)
 | 
						|
		}
 | 
						|
		if !jsontext.Value(got).IsValid() {
 | 
						|
			t.Errorf("`%s`.IsValid() = false, want true", got)
 | 
						|
		}
 | 
						|
	}
 | 
						|
}
 | 
						|
 | 
						|
func TestAppendTextOrJSON(t *testing.T) {
 | 
						|
	var l Logger
 | 
						|
	l.clock = tstest.NewClock(tstest.ClockOpts{Start: time.Date(2000, 01, 01, 0, 0, 0, 0, time.UTC)})
 | 
						|
	l.metricsDelta = func() string { return "metrics" }
 | 
						|
	l.lowMem = true
 | 
						|
 | 
						|
	for _, tt := range []struct {
 | 
						|
		in    string
 | 
						|
		level int
 | 
						|
		want  string
 | 
						|
	}{
 | 
						|
		{want: `{"logtail":{"client_time":"2000-01-01T00:00:00Z"},"metrics":"metrics"}`},
 | 
						|
		{in: "[]", want: `{"logtail":{"client_time":"2000-01-01T00:00:00Z"},"metrics":"metrics","text":"[]"}`},
 | 
						|
		{level: 1, want: `{"logtail":{"client_time":"2000-01-01T00:00:00Z"},"metrics":"metrics","v":1}`},
 | 
						|
		{in: `{}`, want: `{"logtail":{"client_time":"2000-01-01T00:00:00Z"}}`},
 | 
						|
		{in: `{}{}`, want: `{"logtail":{"client_time":"2000-01-01T00:00:00Z"},"metrics":"metrics","text":"{}{}"}`},
 | 
						|
		{in: "{\n\"fizz\"\n:\n\"buzz\"\n}", want: `{"logtail":{"client_time":"2000-01-01T00:00:00Z"},"fizz":"buzz"}`},
 | 
						|
		{in: `{ "logtail" : "duplicate" }`, want: `{"logtail":{"client_time":"2000-01-01T00:00:00Z","error":{"detail":"duplicate logtail member","bad_data":"duplicate"}}}`},
 | 
						|
		{in: `{ "fizz" : "buzz" , "logtail" : "duplicate" }`, want: `{"logtail":{"client_time":"2000-01-01T00:00:00Z","error":{"detail":"duplicate logtail member","bad_data":"duplicate"}}, "fizz" : "buzz"}`},
 | 
						|
		{in: `{ "logtail" : "duplicate" , "fizz" : "buzz" }`, want: `{"logtail":{"client_time":"2000-01-01T00:00:00Z","error":{"detail":"duplicate logtail member","bad_data":"duplicate"}} , "fizz" : "buzz"}`},
 | 
						|
		{in: `{ "fizz" : "buzz" , "logtail" : "duplicate" , "wizz" : "wuzz" }`, want: `{"logtail":{"client_time":"2000-01-01T00:00:00Z","error":{"detail":"duplicate logtail member","bad_data":"duplicate"}}, "fizz" : "buzz" , "wizz" : "wuzz"}`},
 | 
						|
		{in: `{"long":"` + strings.Repeat("a", maxSize) + `"}`, want: `{"logtail":{"client_time":"2000-01-01T00:00:00Z","error":{"detail":"entry too large: 262155 bytes","bad_data":"{\"long\":\"` + strings.Repeat("a", 43681) + `…+218465"}}}`},
 | 
						|
	} {
 | 
						|
		got := string(l.appendTextOrJSONLocked(nil, []byte(tt.in), tt.level))
 | 
						|
		if !strings.HasSuffix(got, "\n") {
 | 
						|
			t.Errorf("`%s` does not end with a newline", got)
 | 
						|
		}
 | 
						|
		got = got[:len(got)-1]
 | 
						|
		if got != tt.want {
 | 
						|
			t.Errorf("appendTextOrJSON(%v, %v):\n\tgot  %s\n\twant %s", tt.in[:min(len(tt.in), 256)], tt.level, got, tt.want)
 | 
						|
		}
 | 
						|
		if !jsontext.Value(got).IsValid() {
 | 
						|
			t.Errorf("`%s`.IsValid() = false, want true", got)
 | 
						|
		}
 | 
						|
	}
 | 
						|
}
 | 
						|
 | 
						|
var sink []byte
 | 
						|
 | 
						|
func TestAppendTextAllocs(t *testing.T) {
 | 
						|
	lg := &Logger{clock: tstime.StdClock{}}
 | 
						|
	inBuf := []byte("some text to encode")
 | 
						|
	procID := uint32(0x24d32ee9)
 | 
						|
	procSequence := uint64(0x12346)
 | 
						|
	must.Do(tstest.MinAllocsPerRun(t, 0, func() {
 | 
						|
		sink = lg.appendText(sink[:0], inBuf, false, procID, procSequence, 0)
 | 
						|
	}))
 | 
						|
}
 | 
						|
 | 
						|
func TestAppendJSONAllocs(t *testing.T) {
 | 
						|
	lg := &Logger{clock: tstime.StdClock{}}
 | 
						|
	inBuf := []byte(`{"fizz":"buzz"}`)
 | 
						|
	must.Do(tstest.MinAllocsPerRun(t, 1, func() {
 | 
						|
		sink = lg.appendTextOrJSONLocked(sink[:0], inBuf, 0)
 | 
						|
	}))
 | 
						|
}
 | 
						|
 | 
						|
type discardBuffer struct{ Buffer }
 | 
						|
 | 
						|
func (discardBuffer) Write(p []byte) (n int, err error) { return n, nil }
 | 
						|
 | 
						|
var testdataTextLog = []byte(`netcheck: report: udp=true v6=false v6os=true mapvarydest=false hair=false portmap= v4a=174.xxx.xxx.xxx:18168 derp=2 derpdist=1v4:82ms,2v4:18ms,3v4:214ms,4v4:171ms,5v4:196ms,7v4:124ms,8v4:149ms,9v4:56ms,10v4:32ms,11v4:196ms,12v4:71ms,13v4:48ms,14v4:166ms,16v4:85ms,17v4:25ms,18v4:153ms,19v4:176ms,20v4:193ms,21v4:84ms,22v4:182ms,24v4:73ms`)
 | 
						|
var testdataJSONLog = []byte(`{"end":"2024-04-08T21:39:15.715291586Z","nodeId":"nQRJBE7CNTRL","physicalTraffic":[{"dst":"127.x.x.x:2","src":"100.x.x.x:0","txBytes":148,"txPkts":1},{"dst":"127.x.x.x:2","src":"100.x.x.x:0","txBytes":148,"txPkts":1},{"dst":"98.x.x.x:1025","rxBytes":640,"rxPkts":5,"src":"100.x.x.x:0","txBytes":640,"txPkts":5},{"dst":"24.x.x.x:49973","rxBytes":640,"rxPkts":5,"src":"100.x.x.x:0","txBytes":640,"txPkts":5},{"dst":"73.x.x.x:41641","rxBytes":732,"rxPkts":6,"src":"100.x.x.x:0","txBytes":820,"txPkts":7},{"dst":"75.x.x.x:1025","rxBytes":640,"rxPkts":5,"src":"100.x.x.x:0","txBytes":640,"txPkts":5},{"dst":"75.x.x.x:41641","rxBytes":640,"rxPkts":5,"src":"100.x.x.x:0","txBytes":640,"txPkts":5},{"dst":"174.x.x.x:35497","rxBytes":13008,"rxPkts":98,"src":"100.x.x.x:0","txBytes":26688,"txPkts":150},{"dst":"47.x.x.x:41641","rxBytes":640,"rxPkts":5,"src":"100.x.x.x:0","txBytes":640,"txPkts":5},{"dst":"64.x.x.x:41641","rxBytes":640,"rxPkts":5,"src":"100.x.x.x:0","txBytes":640,"txPkts":5}],"start":"2024-04-08T21:39:11.099495616Z","virtualTraffic":[{"dst":"100.x.x.x:33008","proto":6,"src":"100.x.x.x:22","txBytes":1260,"txPkts":10},{"dst":"100.x.x.x:0","proto":1,"rxBytes":420,"rxPkts":5,"src":"100.x.x.x:0","txBytes":420,"txPkts":5},{"dst":"100.x.x.x:32984","proto":6,"src":"100.x.x.x:22","txBytes":1340,"txPkts":10},{"dst":"100.x.x.x:32998","proto":6,"src":"100.x.x.x:22","txBytes":1020,"txPkts":10},{"dst":"100.x.x.x:32994","proto":6,"src":"100.x.x.x:22","txBytes":1260,"txPkts":10},{"dst":"100.x.x.x:32980","proto":6,"src":"100.x.x.x:22","txBytes":1260,"txPkts":10},{"dst":"100.x.x.x:0","proto":1,"rxBytes":420,"rxPkts":5,"src":"100.x.x.x:0","txBytes":420,"txPkts":5},{"dst":"100.x.x.x:0","proto":1,"rxBytes":420,"rxPkts":5,"src":"100.x.x.x:0","txBytes":420,"txPkts":5},{"dst":"100.x.x.x:32950","proto":6,"src":"100.x.x.x:22","txBytes":1340,"txPkts":10},{"dst":"100.x.x.x:22","proto":6,"src":"100.x.x.x:53332","txBytes":60,"txPkts":1},{"dst":"100.x.x.x:0","proto":1,"src":"100.x.x.x:0","txBytes":420,"txPkts":5},{"dst":"100.x.x.x:0","proto":1,"rxBytes":420,"rxPkts":5,"src":"100.x.x.x:0","txBytes":420,"txPkts":5},{"dst":"100.x.x.x:32966","proto":6,"src":"100.x.x.x:22","txBytes":1260,"txPkts":10},{"dst":"100.x.x.x:22","proto":6,"src":"100.x.x.x:57882","txBytes":60,"txPkts":1},{"dst":"100.x.x.x:22","proto":6,"src":"100.x.x.x:53326","txBytes":60,"txPkts":1},{"dst":"100.x.x.x:22","proto":6,"src":"100.x.x.x:57892","txBytes":60,"txPkts":1},{"dst":"100.x.x.x:32934","proto":6,"src":"100.x.x.x:22","txBytes":8712,"txPkts":55},{"dst":"100.x.x.x:0","proto":1,"rxBytes":420,"rxPkts":5,"src":"100.x.x.x:0","txBytes":420,"txPkts":5},{"dst":"100.x.x.x:32942","proto":6,"src":"100.x.x.x:22","txBytes":1260,"txPkts":10},{"dst":"100.x.x.x:0","proto":1,"rxBytes":420,"rxPkts":5,"src":"100.x.x.x:0","txBytes":420,"txPkts":5},{"dst":"100.x.x.x:32964","proto":6,"src":"100.x.x.x:22","txBytes":1260,"txPkts":10},{"dst":"100.x.x.x:0","proto":1,"rxBytes":420,"rxPkts":5,"src":"100.x.x.x:0","txBytes":420,"txPkts":5},{"dst":"100.x.x.x:0","proto":1,"rxBytes":420,"rxPkts":5,"src":"100.x.x.x:0","txBytes":420,"txPkts":5},{"dst":"100.x.x.x:22","proto":6,"src":"100.x.x.x:37238","txBytes":60,"txPkts":1},{"dst":"100.x.x.x:22","proto":6,"src":"100.x.x.x:37252","txBytes":60,"txPkts":1}]}`)
 | 
						|
 | 
						|
func BenchmarkWriteText(b *testing.B) {
 | 
						|
	var l Logger
 | 
						|
	l.clock = tstime.StdClock{}
 | 
						|
	l.buffer = discardBuffer{}
 | 
						|
	b.ReportAllocs()
 | 
						|
	for range b.N {
 | 
						|
		must.Get(l.Write(testdataTextLog))
 | 
						|
	}
 | 
						|
}
 | 
						|
 | 
						|
func BenchmarkWriteJSON(b *testing.B) {
 | 
						|
	var l Logger
 | 
						|
	l.clock = tstime.StdClock{}
 | 
						|
	l.buffer = discardBuffer{}
 | 
						|
	b.ReportAllocs()
 | 
						|
	for range b.N {
 | 
						|
		must.Get(l.Write(testdataJSONLog))
 | 
						|
	}
 | 
						|
}
 |