From 7d77f9da942499f38399f05dc3cd116253e985fb Mon Sep 17 00:00:00 2001
From: Ivan Tymoshenko <bugagashenkj@gmail.com>
Date: Tue, 5 Jul 2022 09:35:41 +0300
Subject: [PATCH] fix: set hash sign as default json pointer (#485)

* fix: set hash sign as default json pointer

* change test name
---
 index.js         |  2 +-
 test/ref.test.js | 27 +++++++++++++++++++++++++++
 2 files changed, 28 insertions(+), 1 deletion(-)

diff --git a/index.js b/index.js
index 083f0fc2..69b1bac6 100644
--- a/index.js
+++ b/index.js
@@ -55,7 +55,7 @@ function resolveRef (location, ref) {
   }
 
   const schemaId = ref.slice(0, hashIndex) || location.schemaId
-  const jsonPointer = ref.slice(hashIndex)
+  const jsonPointer = ref.slice(hashIndex) || '#'
 
   const schemaRef = schemaId + jsonPointer
 
diff --git a/test/ref.test.js b/test/ref.test.js
index fce9d20e..3158b6aa 100644
--- a/test/ref.test.js
+++ b/test/ref.test.js
@@ -1926,3 +1926,30 @@ test('anyOf inside allOf', (t) => {
 
   t.equal(output, JSON.stringify(object))
 })
+
+test('should resolve absolute $refs', (t) => {
+  t.plan(1)
+
+  const externalSchema = {
+    FooSchema: {
+      $id: 'FooSchema',
+      type: 'object',
+      properties: {
+        type: {
+          anyOf: [
+            { type: 'string', const: 'bar' },
+            { type: 'string', const: 'baz' }
+          ]
+        }
+      }
+    }
+  }
+
+  const schema = { $ref: 'FooSchema' }
+
+  const object = { type: 'bar' }
+  const stringify = build(schema, { schema: externalSchema })
+  const output = stringify(object)
+
+  t.equal(output, JSON.stringify(object))
+})