test: add codecov (#1861)

* test: add codecov

* test: add codecov

core/stores/mon/util_test.go

@@ -1,9 +1,13 @@
 package mon
 
 import (
+	"errors"
+	"strings"
 	"testing"
+	"time"
 
 	"github.com/stretchr/testify/assert"
+	"github.com/zeromicro/go-zero/core/logx"
 )
 
 func TestFormatAddrs(t *testing.T) {
@@ -33,3 +37,26 @@ func TestFormatAddrs(t *testing.T) {
 		assert.Equal(t, test.expect, FormatAddr(test.addrs))
 	}
 }
+
+func Test_logDuration(t *testing.T) {
+	var buf strings.Builder
+	w := logx.NewWriter(&buf)
+	o := logx.Reset()
+	logx.SetWriter(w)
+
+	defer func() {
+		logx.Reset()
+		logx.SetWriter(o)
+	}()
+
+	buf.Reset()
+	logDuration("foo", "bar", time.Millisecond, nil)
+	assert.Contains(t, buf.String(), "foo")
+	assert.Contains(t, buf.String(), "bar")
+
+	buf.Reset()
+	logDuration("foo", "bar", time.Millisecond, errors.New("bar"))
+	assert.Contains(t, buf.String(), "foo")
+	assert.Contains(t, buf.String(), "bar")
+	assert.Contains(t, buf.String(), "fail")
+}