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sink_test.go
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sink_test.go
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package zapr
import (
"bytes"
"encoding/json"
"flag"
"log"
"strconv"
"strings"
"testing"
"bursavich.dev/zapr/encoding"
"github.com/go-logr/logr"
"go.uber.org/zap/zapcore"
)
func TestLogger(t *testing.T) {
buf := bytes.NewBuffer(nil)
log, _ := NewLogger(
WithEncoder(encoding.JSONEncoder()),
WithLineEnding("\n"),
WithCallerEncoder(encoding.ShortCallerEncoder()),
WithCallerKey("caller"),
WithLevelEncoder(encoding.UppercaseLevelEncoder()),
WithLevelKey("level"),
WithMessageKey("message"),
WithWriteSyncer(zapcore.AddSync(buf)),
)
log.Info("hello", "foo", "world", "bar", 42)
t.Log("\n" + strings.TrimSpace(buf.String())) // help debugging
var entry struct {
Level string `json:"level"`
Caller string `json:"caller"`
Message string `json:"message"`
Foo string `json:"foo"`
Bar int `json:"bar"`
}
if err := json.Unmarshal(buf.Bytes(), &entry); err != nil {
t.Fatal(err)
}
if want, got := "INFO", entry.Level; got != want {
t.Errorf("unexpected level: want: %q; got: %q", want, got)
}
if want, got := "zapr/sink_test.go:", entry.Caller; !strings.HasPrefix(got, want) {
t.Errorf("unexpected caller: want prefix: %q; got: %q", want, got)
}
if want, got := "hello", entry.Message; got != want {
t.Errorf("unexpected message: want: %q; got: %q", want, got)
}
if want, got := "world", entry.Foo; got != want {
t.Errorf("unexpected foo: want: %q; got: %q", want, got)
}
if want, got := 42, entry.Bar; got != want {
t.Errorf("unexpected bar: want: %v; got: %v", want, got)
}
}
func TestFlag(t *testing.T) {
fs := flag.NewFlagSet("test", flag.ContinueOnError)
opts := RegisterFlags(fs, AllOptions()...)
if err := fs.Parse([]string{"--log-development"}); err != nil {
t.Fatal(err)
}
c := configWithOptions(opts)
if want, got := true, c.development; got != want {
t.Errorf("unexpected development: want: %v; got: %v", want, got)
}
}
func TestStdLog(t *testing.T) {
tests := []struct {
name string
ctor func(logr.CallDepthLogSink) *log.Logger
lvl string
}{
{
name: "NewStdInfoLogger",
ctor: NewStdInfoLogger,
lvl: "INFO",
},
{
name: "NewStdErrorLogger",
ctor: NewStdErrorLogger,
lvl: "ERROR",
},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
buf := bytes.NewBuffer(nil)
_, sink := NewLogger(
WithEncoder(encoding.JSONEncoder()),
WithLineEnding("\n"),
WithCallerEncoder(encoding.ShortCallerEncoder()),
WithCallerKey("caller"),
WithLevelEncoder(encoding.UppercaseLevelEncoder()),
WithLevelKey("level"),
WithMessageKey("message"),
WithWriteSyncer(zapcore.AddSync(buf)),
)
logger := tt.ctor(sink)
logger.Printf("can be on any line")
logger.Printf("must be on the next line")
t.Log("\n" + strings.TrimSpace(buf.String())) // help debugging
var lines [2]int
dec := json.NewDecoder(buf)
for i := range lines {
var entry struct {
Level string `json:"level"`
Caller string `json:"caller"`
Message string `json:"message"`
}
if err := dec.Decode(&entry); err != nil {
t.Fatalf("failed to decode entry: %v", err)
}
if want, got := tt.lvl, entry.Level; want != got {
t.Errorf("unexpected level; want: %q; got: %q", want, got)
}
const prefix = "zapr/sink_test.go:"
if !strings.HasPrefix(entry.Caller, prefix) {
t.Fatalf("unexpected caller; want prefix: %q; got: %q", prefix, entry.Caller)
}
line, err := strconv.Atoi(strings.TrimPrefix(entry.Caller, prefix))
if err != nil {
t.Fatalf("failed to parse line from caller: %q; err: %v", entry.Caller, err)
}
lines[i] = line
}
if lines[1]-lines[0] != 1 {
t.Fatalf("unexpected caller lines: got: %d, %d", lines[0], lines[1])
}
})
}
}