From bbf40bb0e4f47860677c7115b2eaa5b3413ce23e Mon Sep 17 00:00:00 2001
From: tidwall <joshbaker77@gmail.com>
Date: Wed, 14 Feb 2024 20:51:40 -0700
Subject: [PATCH] Fix backspace and form-feed for Go 1.22

---
 gjson_test.go | 20 ++++++++++++--------
 1 file changed, 12 insertions(+), 8 deletions(-)

diff --git a/gjson_test.go b/gjson_test.go
index 5fdaf66..61c21f9 100644
--- a/gjson_test.go
+++ b/gjson_test.go
@@ -2578,15 +2578,19 @@ func TestJSONString(t *testing.T) {
 	testJSONString(t, s)
 	testJSONString(t, "R\xfd\xfc\a!\x82eO\x16?_\x0f\x9ab\x1dr")
 	testJSONString(t, "_\xb9\v\xad\xb3|X!\xb6\xd9U&\xa4\x1a\x95\x04")
-	testJSONString(t, "\b\f")
-	rng := rand.New(rand.NewSource(time.Now().UnixNano()))
-	start := time.Now()
-	var buf [16]byte
-	for time.Since(start) < time.Second*2 {
-		if _, err := rng.Read(buf[:]); err != nil {
-			t.Fatal(err)
+	data, _ := json.Marshal("\b\f")
+	if (string(data) == "\"\\b\\f\"") {
+		// Go version 1.22+ encodes "\b" and "\f" correctly.
+		testJSONString(t, "\b\f")
+		rng := rand.New(rand.NewSource(time.Now().UnixNano()))
+		start := time.Now()
+		var buf [16]byte
+		for time.Since(start) < time.Second*2 {
+			if _, err := rng.Read(buf[:]); err != nil {
+				t.Fatal(err)
+			}
+			testJSONString(t, string(buf[:]))
 		}
-		testJSONString(t, string(buf[:]))
 	}
 }