From b65b5a46d93220b32c8add2106092b3592440cf4 Mon Sep 17 00:00:00 2001
From: eric kertz <erickertz@gmail.com>
Date: Wed, 2 Feb 2022 10:37:45 -0500
Subject: [PATCH] Fix panic on test op

---
 patch.go         | 2 +-
 patch_test.go    | 6 ++++++
 v5/patch.go      | 2 +-
 v5/patch_test.go | 7 +++++++
 4 files changed, 15 insertions(+), 2 deletions(-)

diff --git a/patch.go b/patch.go
index dc2b7e5..bc58f59 100644
--- a/patch.go
+++ b/patch.go
@@ -688,7 +688,7 @@ func (p Patch) test(doc *container, op Operation) error {
 	}
 
 	if val == nil {
-		if op.value().raw == nil {
+		if op.value() == nil || op.value().raw == nil {
 			return nil
 		}
 		return errors.Wrapf(ErrTestFailed, "testing value %s failed", path)
diff --git a/patch_test.go b/patch_test.go
index 84e2996..98c14ea 100644
--- a/patch_test.go
+++ b/patch_test.go
@@ -496,6 +496,12 @@ var TestCases = []TestCase{
 		false,
 		"/foo",
 	},
+	{
+		`{ "baz": [] }`,
+		`[ { "op": "test", "path": "/foo"} ]`,
+		true,
+		"/foo",
+	},
 }
 
 func TestAllTest(t *testing.T) {
diff --git a/v5/patch.go b/v5/patch.go
index 97aedcf..15443ea 100644
--- a/v5/patch.go
+++ b/v5/patch.go
@@ -965,7 +965,7 @@ func (p Patch) test(doc *container, op Operation, options *ApplyOptions) error {
 	}
 
 	if val == nil {
-		if op.value().raw == nil {
+		if op.value() == nil || op.value().raw == nil {
 			return nil
 		}
 		return errors.Wrapf(ErrTestFailed, "testing value %s failed", path)
diff --git a/v5/patch_test.go b/v5/patch_test.go
index 3fa079e..cb346de 100644
--- a/v5/patch_test.go
+++ b/v5/patch_test.go
@@ -571,6 +571,13 @@ var Cases = []Case{
 }`,
 		false, true,
 	},
+	{
+		`{"baz": []}`,
+		`[ { "op": "test", "path": "/foo" } ]`,
+		`{"baz": []}`,
+		false,
+		false,
+	},
 }
 
 type BadCase struct {