Refactor tag encoder to optimize buffer reuse, simplify tag marshaling, and improve event handling; enhance tests with additional coverage and example validation.

pkg/encoders/event/event_test.go

@@ -1,16 +1,21 @@
 package event
 
 import (
+	"bufio"
+	"bytes"
 	"encoding/json"
 	"testing"
 	"time"
 
 	"lol.mleku.dev/chk"
+	"lol.mleku.dev/log"
 	"lukechampine.com/frand"
+	"next.orly.dev/pkg/encoders/event/examples"
 	"next.orly.dev/pkg/encoders/hex"
 	"next.orly.dev/pkg/encoders/tag"
 	"next.orly.dev/pkg/utils"
 	"next.orly.dev/pkg/utils/bufpool"
+	"next.orly.dev/pkg/utils/units"
 )
 
 func TestMarshalJSONUnmarshalJSON(t *testing.T) {
@@ -35,13 +40,12 @@ func TestMarshalJSONUnmarshalJSON(t *testing.T) {
 `)
 		ev.Sig = frand.Bytes(64)
 		// log.I.S(ev)
-		b, err := ev.MarshalJSON()
+		// b, err := ev.MarshalJSON()
+		var err error
+		var b []byte
 		if b, err = json.Marshal(ev); chk.E(err) {
 			t.Fatal(err)
 		}
-		if err != nil {
-			t.Fatal(err)
-		}
 		var bc []byte
 		bc = append(bc, b...)
 		ev2 := New()
@@ -49,7 +53,7 @@ func TestMarshalJSONUnmarshalJSON(t *testing.T) {
 			t.Fatal(err)
 		}
 		var b2 []byte
-		if b2, err = ev.MarshalJSON(); err != nil {
+		if b2, err = json.Marshal(ev2); err != nil {
 			t.Fatal(err)
 		}
 		if !utils.FastEqual(bc, b2) {
@@ -65,5 +69,30 @@ func TestMarshalJSONUnmarshalJSON(t *testing.T) {
 }
 
 func TestExamplesCache(t *testing.T) {
-
+	scanner := bufio.NewScanner(bytes.NewBuffer(examples.Cache))
+	scanner.Buffer(make([]byte, 0, 4*units.Mb), 4*units.Mb)
+	var err error
+	for scanner.Scan() {
+		b := scanner.Bytes()
+		c := bufpool.Get()
+		c = c[:0]
+		c = append(c, b...)
+		ev := New()
+		if err = ev.UnmarshalJSON(b); chk.E(err) {
+			t.Fatal(err)
+		}
+		var b2 []byte
+		if b2, err = ev.MarshalJSON(); err != nil {
+			t.Fatal(err)
+		}
+		if !utils.FastEqual(c, b2) {
+			log.I.F("\n%s\n%s", c, b2)
+			t.Fatalf("failed to re-marshal back original")
+		}
+		ev.Free()
+		// Don't return scanner.Bytes() to the pool as it's not a buffer we own
+		// bufpool.PutBytes(b)
+		bufpool.PutBytes(b2)
+		bufpool.PutBytes(c)
+	}
 }