go.temporal.io/server@v1.23.0/common/log/slog_test.go (about)

     1  // The MIT License
     2  //
     3  // Copyright (c) 2023 Temporal Technologies Inc.  All rights reserved.
     4  //
     5  // Permission is hereby granted, free of charge, to any person obtaining a copy
     6  // of this software and associated documentation files (the "Software"), to deal
     7  // in the Software without restriction, including without limitation the rights
     8  // to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
     9  // copies of the Software, and to permit persons to whom the Software is
    10  // furnished to do so, subject to the following conditions:
    11  //
    12  // The above copyright notice and this permission notice shall be included in
    13  // all copies or substantial portions of the Software.
    14  //
    15  // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
    16  // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
    17  // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
    18  // AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
    19  // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
    20  // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
    21  // THE SOFTWARE.
    22  
    23  package log
    24  
    25  import (
    26  	"context"
    27  	"encoding/json"
    28  	"log/slog"
    29  	"testing"
    30  
    31  	"github.com/stretchr/testify/require"
    32  	"go.temporal.io/server/common/log/tag"
    33  	"go.temporal.io/server/common/quotas"
    34  	"go.uber.org/zap"
    35  	"go.uber.org/zap/zapcore"
    36  )
    37  
    38  type writeBuffer struct {
    39  	buf []byte
    40  }
    41  
    42  var _ zapcore.WriteSyncer = (*writeBuffer)(nil)
    43  
    44  // Sync implements zapcore.WriteSyncer.
    45  func (*writeBuffer) Sync() error {
    46  	return nil
    47  }
    48  
    49  // Write implements zapcore.WriteSyncer.
    50  func (b *writeBuffer) Write(p []byte) (n int, err error) {
    51  	b.buf = append(b.buf, p...)
    52  	return len(p), nil
    53  }
    54  
    55  func TestSlogFromLayeredLogger(t *testing.T) {
    56  	buffer := writeBuffer{nil}
    57  	core := zapcore.NewCore(zapcore.NewJSONEncoder(zap.NewProductionEncoderConfig()), &buffer, zap.InfoLevel)
    58  	l := NewSlogLogger(NewThrottledLogger(With(NewZapLogger(zap.New(core)), tag.ClusterName("corn")), quotas.InfDuration.Hours))
    59  	require.True(t, l.Enabled(context.Background(), slog.LevelInfo))
    60  	require.False(t, l.Enabled(context.Background(), slog.LevelDebug))
    61  	l.With("a", "b").WithGroup("hey").With("ho", "lets").WithGroup("go").With("c", 4).Info("wow", "gg", "wp")
    62  	var record map[string]any
    63  	err := json.Unmarshal(buffer.buf, &record)
    64  	require.NoError(t, err)
    65  	require.Equal(t, "b", record["a"])
    66  	require.Equal(t, "lets", record["hey.ho"])
    67  	require.Equal(t, float64(4), record["hey.go.c"]) // untyped json unmarshals numbers as floats
    68  	require.Equal(t, "wp", record["hey.go.gg"])
    69  	require.Equal(t, "wow", record["msg"])
    70  	require.Equal(t, "corn", record["cluster-name"])
    71  	require.Equal(t, "slog_test.go:61", record["logging-call-at"])
    72  }