github.com/demonoid81/moby@v0.0.0-20200517203328-62dd8e17c460/daemon/logger/jsonfilelog/jsonlog/jsonlogbytes_test.go (about)

     1  package jsonlog // import "github.com/demonoid81/moby/daemon/logger/jsonfilelog/jsonlog"
     2  
     3  import (
     4  	"bytes"
     5  	"encoding/json"
     6  	"fmt"
     7  	"regexp"
     8  	"testing"
     9  	"time"
    10  
    11  	"gotest.tools/v3/assert"
    12  )
    13  
    14  func TestJSONLogsMarshalJSONBuf(t *testing.T) {
    15  	logs := map[*JSONLogs]string{
    16  		{Log: []byte(`"A log line with \\"`)}:                  `^{\"log\":\"\\\"A log line with \\\\\\\\\\\"\",\"time\":`,
    17  		{Log: []byte("A log line")}:                            `^{\"log\":\"A log line\",\"time\":`,
    18  		{Log: []byte("A log line with \r")}:                    `^{\"log\":\"A log line with \\r\",\"time\":`,
    19  		{Log: []byte("A log line with & < >")}:                 `^{\"log\":\"A log line with \\u0026 \\u003c \\u003e\",\"time\":`,
    20  		{Log: []byte("A log line with utf8 : 🚀 ψ ω β")}:        `^{\"log\":\"A log line with utf8 : 🚀 ψ ω β\",\"time\":`,
    21  		{Stream: "stdout"}:                                     `^{\"stream\":\"stdout\",\"time\":`,
    22  		{Stream: "stdout", Log: []byte("A log line")}:          `^{\"log\":\"A log line\",\"stream\":\"stdout\",\"time\":`,
    23  		{Created: time.Date(2017, 9, 1, 1, 1, 1, 1, time.UTC)}: `^{\"time\":"2017-09-01T01:01:01.000000001Z"}$`,
    24  
    25  		{}: `^{\"time\":"0001-01-01T00:00:00Z"}$`,
    26  		// These ones are a little weird
    27  		{Log: []byte("\u2028 \u2029")}: `^{\"log\":\"\\u2028 \\u2029\",\"time\":`,
    28  		{Log: []byte{0xaF}}:            `^{\"log\":\"\\ufffd\",\"time\":`,
    29  		{Log: []byte{0x7F}}:            `^{\"log\":\"\x7f\",\"time\":`,
    30  		// with raw attributes
    31  		{Log: []byte("A log line"), RawAttrs: []byte(`{"hello":"world","value":1234}`)}: `^{\"log\":\"A log line\",\"attrs\":{\"hello\":\"world\",\"value\":1234},\"time\":`,
    32  		// with Tag set
    33  		{Log: []byte("A log line with tag"), RawAttrs: []byte(`{"hello":"world","value":1234}`)}: `^{\"log\":\"A log line with tag\",\"attrs\":{\"hello\":\"world\",\"value\":1234},\"time\":`,
    34  	}
    35  	for jsonLog, expression := range logs {
    36  		var buf bytes.Buffer
    37  		err := jsonLog.MarshalJSONBuf(&buf)
    38  		assert.NilError(t, err)
    39  
    40  		assert.Assert(t, regexP(buf.String(), expression))
    41  		assert.NilError(t, json.Unmarshal(buf.Bytes(), &map[string]interface{}{}))
    42  	}
    43  }
    44  
    45  func regexP(value string, pattern string) func() (bool, string) {
    46  	return func() (bool, string) {
    47  		re := regexp.MustCompile(pattern)
    48  		msg := fmt.Sprintf("%q did not match pattern %q", value, pattern)
    49  		return re.MatchString(value), msg
    50  	}
    51  }