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logging_test.go
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// SPDX-License-Identifier: Apache-2.0
package logging
import (
"bytes"
"fmt"
slogLogger "log/slog"
"testing"
"time"
"github.com/rs/zerolog"
"github.com/stretchr/testify/assert"
"github.com/loopholelabs/logging/loggers/slog"
)
var (
zeroTime = time.Time{}
)
func init() {
slog.ReplaceAttr = func(_ []string, a slogLogger.Attr) slogLogger.Attr {
switch a.Key {
case slogLogger.TimeKey:
return slogLogger.Attr{}
}
return a
}
zerolog.TimestampFunc = func() time.Time {
return zeroTime
}
}
func fillZerologTestFields(t *testing.T, format string) string {
return fmt.Sprintf(format, zeroTime.Format(zerolog.TimeFieldFormat), t.Name())
}
func fillZerologSubloggerTestFields(t *testing.T, format string, depth int) string {
args := make([]interface{}, 0, depth+2)
args = append(args, zeroTime.Format(zerolog.TimeFieldFormat), t.Name())
for i := 0; i < depth; i++ {
args = append(args, t.Name())
}
return fmt.Sprintf(format, args...)
}
func fillSlogTestFields(t *testing.T, format string) string {
return fmt.Sprintf(format, t.Name())
}
func fillSlogSubloggerTestFields(t *testing.T, format string, depth int) string {
args := make([]interface{}, 0, depth+1)
args = append(args, t.Name())
for i := 0; i < depth; i++ {
args = append(args, t.Name())
}
return fmt.Sprintf(format, args...)
}
func TestInfo(t *testing.T) {
t.Run("empty", func(t *testing.T) {
t.Run("noop", func(t *testing.T) {
out := &bytes.Buffer{}
log := New(Noop, t.Name(), out)
log.Info().Msg("")
log.Debug().Msg("") // Should not be logged.
assert.Equal(t, "", out.String())
})
t.Run("zerolog", func(t *testing.T) {
out := &bytes.Buffer{}
log := New(Zerolog, t.Name(), out)
log.Info().Msg("")
log.Debug().Msg("") // Should not be logged.
assert.Equal(t, fillZerologTestFields(t, "{\"level\":\"info\",\"time\":\"%s\",\"source\":\"%s\"}\n"), out.String())
})
t.Run("slog", func(t *testing.T) {
out := &bytes.Buffer{}
log := New(Slog, t.Name(), out)
log.Info().Msg("")
log.Debug().Msg("") // Should not be logged.
assert.Equal(t, fillSlogTestFields(t, "level=INFO msg=\"\" source=%s\n"), out.String())
})
})
t.Run("one-field", func(t *testing.T) {
t.Run("noop", func(t *testing.T) {
out := &bytes.Buffer{}
log := New(Noop, t.Name(), out)
log.Info().Str("foo", "bar").Msg("")
log.Debug().Str("foo", "bar").Msg("") // Should not be logged.
assert.Equal(t, "", out.String())
})
t.Run("zerolog", func(t *testing.T) {
out := &bytes.Buffer{}
log := New(Zerolog, t.Name(), out)
log.Info().Str("foo", "bar").Msg("")
log.Debug().Str("foo", "bar").Msg("") // Should not be logged.
assert.Equal(t, fillZerologTestFields(t, "{\"level\":\"info\",\"time\":\"%s\",\"source\":\"%s\",\"foo\":\"bar\"}\n"), out.String())
})
t.Run("slog", func(t *testing.T) {
out := &bytes.Buffer{}
log := New(Slog, t.Name(), out)
log.Info().Str("foo", "bar").Msg("")
log.Debug().Str("foo", "bar").Msg("") // Should not be logged.
assert.Equal(t, fillSlogTestFields(t, "level=INFO msg=\"\" source=%s foo=bar\n"), out.String())
})
})
t.Run("two-field", func(t *testing.T) {
t.Run("noop", func(t *testing.T) {
out := &bytes.Buffer{}
log := New(Noop, t.Name(), out)
log.Info().
Str("foo", "bar").
Int("n", 123).
Msg("")
log.Debug(). // Should not be logged.
Str("foo", "bar").
Int("n", 123).
Msg("")
assert.Equal(t, "", out.String())
})
t.Run("zerolog", func(t *testing.T) {
out := &bytes.Buffer{}
log := New(Zerolog, t.Name(), out)
log.Info().
Str("foo", "bar").
Int("n", 123).
Msg("")
log.Debug(). // Should not be logged.
Str("foo", "bar").
Int("n", 123).
Msg("")
assert.Equal(t, fillZerologTestFields(t, "{\"level\":\"info\",\"time\":\"%s\",\"source\":\"%s\",\"foo\":\"bar\",\"n\":123}\n"), out.String())
})
t.Run("slog", func(t *testing.T) {
out := &bytes.Buffer{}
log := New(Slog, t.Name(), out)
log.Info().
Str("foo", "bar").
Int("n", 123).
Msg("")
log.Debug(). // Should not be logged.
Str("foo", "bar").
Int("n", 123).
Msg("")
assert.Equal(t, fillSlogTestFields(t, "level=INFO msg=\"\" source=%s foo=bar n=123\n"), out.String())
})
})
t.Run("with", func(t *testing.T) {
t.Run("noop", func(t *testing.T) {
out := &bytes.Buffer{}
log := New(Noop, t.Name(), out)
logger := log.With().
Str("foo", "bar").
Logger()
logger.Info().Msg("")
assert.Equal(t, "", out.String())
})
t.Run("zerolog", func(t *testing.T) {
out := &bytes.Buffer{}
log := New(Zerolog, t.Name(), out)
logger := log.With().
Str("foo", "bar").
Logger()
logger.Info().Msg("")
assert.Equal(t, fillZerologTestFields(t, "{\"level\":\"info\",\"foo\":\"bar\",\"time\":\"%s\",\"source\":\"%s\"}\n"), out.String())
// Log with per-message attribute.
out.Reset()
logger.Info().Int("n", 123).Msg("")
assert.Equal(t, fillZerologTestFields(t, "{\"level\":\"info\",\"foo\":\"bar\",\"time\":\"%s\",\"source\":\"%s\",\"n\":123}\n"), out.String())
// Retain attributes on sublogger.
out.Reset()
logger2 := logger.With().
Str("foo2", "bar2").
Logger()
logger2.Info().Msg("")
assert.Equal(t, fillZerologTestFields(t, "{\"level\":\"info\",\"foo\":\"bar\",\"foo2\":\"bar2\",\"time\":\"%s\",\"source\":\"%s\"}\n"), out.String())
// Ensure original loggers were not modified.
out.Reset()
log.Info().Msg("")
assert.Equal(t, fillZerologTestFields(t, "{\"level\":\"info\",\"time\":\"%s\",\"source\":\"%s\"}\n"), out.String())
out.Reset()
logger.Info().Msg("")
assert.Equal(t, fillZerologTestFields(t, "{\"level\":\"info\",\"foo\":\"bar\",\"time\":\"%s\",\"source\":\"%s\"}\n"), out.String())
})
t.Run("slog", func(t *testing.T) {
out := &bytes.Buffer{}
log := New(Slog, t.Name(), out)
logger := log.With().
Str("foo", "bar").
Logger()
logger.Info().Msg("")
assert.Equal(t, fillSlogTestFields(t, "level=INFO msg=\"\" source=%s foo=bar\n"), out.String())
// Log with per-message attribute.
out.Reset()
logger.Info().Int("n", 123).Msg("")
assert.Equal(t, fillSlogTestFields(t, "level=INFO msg=\"\" source=%s foo=bar n=123\n"), out.String())
// Retain attributes on sublogger.
out.Reset()
logger2 := logger.With().
Str("foo2", "bar2").
Logger()
logger2.Info().Msg("")
assert.Equal(t, fillSlogTestFields(t, "level=INFO msg=\"\" source=%s foo=bar foo2=bar2\n"), out.String())
// Ensure original loggers were not modified.
out.Reset()
log.Info().Msg("")
assert.Equal(t, fillSlogTestFields(t, "level=INFO msg=\"\" source=%s\n"), out.String())
out.Reset()
logger.Info().Msg("")
assert.Equal(t, fillSlogTestFields(t, "level=INFO msg=\"\" source=%s foo=bar\n"), out.String())
})
})
}
func TestSubLoggers(t *testing.T) {
t.Run("depth=1", func(t *testing.T) {
t.Run("zerolog", func(t *testing.T) {
out := &bytes.Buffer{}
log := New(Zerolog, t.Name(), out)
sublogger := log.SubLogger(t.Name())
sublogger.Info().Str("foo", "bar").Msg("")
assert.Equal(t, fillZerologSubloggerTestFields(t, "{\"level\":\"info\",\"time\":\"%s\",\"source\":\"%s:%s\",\"foo\":\"bar\"}\n", 1), out.String())
})
t.Run("slog", func(t *testing.T) {
out := &bytes.Buffer{}
log := New(Slog, t.Name(), out)
sublogger := log.SubLogger(t.Name())
sublogger.Info().Str("foo", "bar").Msg("")
assert.Equal(t, fillSlogSubloggerTestFields(t, "level=INFO msg=\"\" source=\"%s:%s\" foo=bar\n", 1), out.String())
})
})
t.Run("depth=2", func(t *testing.T) {
t.Run("zerolog", func(t *testing.T) {
out := &bytes.Buffer{}
log := New(Zerolog, t.Name(), out)
sublogger0 := log.SubLogger(t.Name())
sublogger1 := sublogger0.SubLogger(t.Name())
sublogger1.Info().Str("foo", "bar").Msg("")
assert.Equal(t, fillZerologSubloggerTestFields(t, "{\"level\":\"info\",\"time\":\"%s\",\"source\":\"%s:%s:%s\",\"foo\":\"bar\"}\n", 2), out.String())
})
t.Run("slog", func(t *testing.T) {
out := &bytes.Buffer{}
log := New(Slog, t.Name(), out)
sublogger0 := log.SubLogger(t.Name())
sublogger1 := sublogger0.SubLogger(t.Name())
sublogger1.Info().Str("foo", "bar").Msg("")
assert.Equal(t, fillSlogSubloggerTestFields(t, "level=INFO msg=\"\" source=\"%s:%s:%s\" foo=bar\n", 2), out.String())
})
})
t.Run("depth=3", func(t *testing.T) {
t.Run("zerolog", func(t *testing.T) {
out := &bytes.Buffer{}
log := New(Zerolog, t.Name(), out)
sublogger0 := log.SubLogger(t.Name())
sublogger1 := sublogger0.SubLogger(t.Name())
sublogger2 := sublogger1.SubLogger(t.Name())
sublogger2.Info().Str("foo", "bar").Msg("")
assert.Equal(t, fillZerologSubloggerTestFields(t, "{\"level\":\"info\",\"time\":\"%s\",\"source\":\"%s:%s:%s:%s\",\"foo\":\"bar\"}\n", 3), out.String())
})
t.Run("slog", func(t *testing.T) {
out := &bytes.Buffer{}
log := New(Slog, t.Name(), out)
sublogger0 := log.SubLogger(t.Name())
sublogger1 := sublogger0.SubLogger(t.Name())
sublogger2 := sublogger1.SubLogger(t.Name())
sublogger2.Info().Str("foo", "bar").Msg("")
assert.Equal(t, fillSlogSubloggerTestFields(t, "level=INFO msg=\"\" source=\"%s:%s:%s:%s\" foo=bar\n", 3), out.String())
})
})
t.Run("with", func(t *testing.T) {
t.Run("before-depth=1", func(t *testing.T) {
t.Run("zerolog", func(t *testing.T) {
out := &bytes.Buffer{}
log := New(Zerolog, t.Name(), out).With().Str("foo", "bar").Logger()
sublogger := log.SubLogger(t.Name())
sublogger.Info().Str("foo1", "bar1").Msg("")
assert.Equal(t, fillZerologSubloggerTestFields(t, "{\"level\":\"info\",\"foo\":\"bar\",\"time\":\"%s\",\"source\":\"%s:%s\",\"foo1\":\"bar1\"}\n", 1), out.String())
})
t.Run("slog", func(t *testing.T) {
out := &bytes.Buffer{}
log := New(Slog, t.Name(), out).With().Str("foo", "bar").Logger()
sublogger := log.SubLogger(t.Name())
sublogger.Info().Str("foo1", "bar1").Msg("")
assert.Equal(t, fillSlogSubloggerTestFields(t, "level=INFO msg=\"\" source=\"%s:%s\" foo=bar foo1=bar1\n", 1), out.String())
})
})
t.Run("before-depth=2", func(t *testing.T) {
t.Run("zerolog", func(t *testing.T) {
out := &bytes.Buffer{}
log := New(Zerolog, t.Name(), out).With().Str("foo", "bar").Logger()
sublogger0 := log.SubLogger(t.Name())
sublogger1 := sublogger0.SubLogger(t.Name())
sublogger1.Info().Str("foo1", "bar1").Msg("")
assert.Equal(t, fillZerologSubloggerTestFields(t, "{\"level\":\"info\",\"foo\":\"bar\",\"time\":\"%s\",\"source\":\"%s:%s:%s\",\"foo1\":\"bar1\"}\n", 2), out.String())
})
t.Run("slog", func(t *testing.T) {
out := &bytes.Buffer{}
log := New(Slog, t.Name(), out).With().Str("foo", "bar").Logger()
sublogger0 := log.SubLogger(t.Name())
sublogger1 := sublogger0.SubLogger(t.Name())
sublogger1.Info().Str("foo1", "bar1").Msg("")
assert.Equal(t, fillSlogSubloggerTestFields(t, "level=INFO msg=\"\" source=\"%s:%s:%s\" foo=bar foo1=bar1\n", 2), out.String())
})
})
t.Run("after-depth=1", func(t *testing.T) {
t.Run("zerolog", func(t *testing.T) {
out := &bytes.Buffer{}
log := New(Zerolog, t.Name(), out)
sublogger := log.SubLogger(t.Name()).With().Str("foo", "bar").Logger()
sublogger.Info().Str("foo1", "bar1").Msg("")
assert.Equal(t, fillZerologSubloggerTestFields(t, "{\"level\":\"info\",\"foo\":\"bar\",\"time\":\"%s\",\"source\":\"%s:%s\",\"foo1\":\"bar1\"}\n", 1), out.String())
})
t.Run("slog", func(t *testing.T) {
out := &bytes.Buffer{}
log := New(Slog, t.Name(), out)
sublogger := log.SubLogger(t.Name()).With().Str("foo", "bar").Logger()
sublogger.Info().Str("foo1", "bar1").Msg("")
assert.Equal(t, fillSlogSubloggerTestFields(t, "level=INFO msg=\"\" source=\"%s:%s\" foo=bar foo1=bar1\n", 1), out.String())
})
})
t.Run("after-depth=2", func(t *testing.T) {
t.Run("zerolog", func(t *testing.T) {
out := &bytes.Buffer{}
log := New(Zerolog, t.Name(), out)
sublogger0 := log.SubLogger(t.Name())
sublogger1 := sublogger0.SubLogger(t.Name()).With().Str("foo", "bar").Logger()
sublogger1.Info().Str("foo1", "bar1").Msg("")
assert.Equal(t, fillZerologSubloggerTestFields(t, "{\"level\":\"info\",\"foo\":\"bar\",\"time\":\"%s\",\"source\":\"%s:%s:%s\",\"foo1\":\"bar1\"}\n", 2), out.String())
})
t.Run("slog", func(t *testing.T) {
out := &bytes.Buffer{}
log := New(Slog, t.Name(), out)
sublogger0 := log.SubLogger(t.Name())
sublogger1 := sublogger0.SubLogger(t.Name()).With().Str("foo", "bar").Logger()
sublogger1.Info().Str("foo1", "bar1").Msg("")
assert.Equal(t, fillSlogSubloggerTestFields(t, "level=INFO msg=\"\" source=\"%s:%s:%s\" foo=bar foo1=bar1\n", 2), out.String())
})
})
})
}