test: add encoded ref test

lib/compile/codegen/code.ts

@@ -1,3 +1,4 @@
+// eslint-disable-next-line @typescript-eslint/no-extraneous-class
 export abstract class _CodeOrName {
   abstract readonly str: string
   abstract readonly names: UsedNames

spec/resolve.spec.ts

@@ -16,7 +16,7 @@ uriResolvers.forEach((resolver) => {
   } else {
     describeTitle = "fast-uri resolver"
   }
-  describe(describeTitle, () => {
+  describe.only(describeTitle, () => {
     describe("resolve", () => {
       let instances: AjvCore[]
 
@@ -180,6 +180,41 @@ uriResolvers.forEach((resolver) => {
         })
       })
 
+      describe("URIs with encoded characters (issue #2447)", () => {
+        it("should resolve the ref", () => {
+          const schema = {
+            $ref: "#/definitions/Record%3Cstring%2CPerson%3E",
+            $schema: "http://json-schema.org/draft-07/schema#",
+            definitions: {
+              Person: {
+                type: "object",
+                properties: {
+                  firstName: {
+                    type: "string",
+                    description: "The person's first name.",
+                  },
+                },
+              },
+              "Record<string,Person>": {
+                type: "object",
+                additionalProperties: {
+                  $ref: "#/definitions/Person",
+                },
+              },
+            },
+          }
+          const data = {
+            joe: {
+              firstName: "Joe",
+            },
+          }
+          instances.forEach((ajv) => {
+            const validate = ajv.compile(schema)
+            validate(data).should.equal(true)
+          })
+        })
+      })
+
       describe("missing schema error", function () {
         this.timeout(4000)