Add tests for to/fromJson methods in PublicKeyCredentialCreationOptions and AssertionRequest

Author: emlun

webauthn-server-core/src/main/java/com/yubico/webauthn/AssertionRequest.java

@@ -101,6 +101,14 @@ public String toCredentialsGetJson() throws JsonProcessingException {
     return publicKeyCredentialRequestOptions.toCredentialsGetJson();
   }
 
+  public String toJson() throws JsonProcessingException {
+    return "";
+  }
+
+  public static AssertionRequest fromJson(String json) throws JsonProcessingException {
+    return null;
+  }
+
   public static AssertionRequestBuilder.MandatoryStages builder() {
     return new AssertionRequestBuilder.MandatoryStages();
   }

webauthn-server-core/src/main/java/com/yubico/webauthn/data/PublicKeyCredentialCreationOptions.java

@@ -169,6 +169,14 @@ public String toCredentialsCreateJson() throws JsonProcessingException {
     return json.writeValueAsString(result);
   }
 
+  public String toJson() throws JsonProcessingException {
+    return "";
+  }
+
+  public static PublicKeyCredentialCreationOptions fromJson(String json) throws JsonProcessingException {
+    return null;
+  }
+
   public Optional<Long> getTimeout() {
     return Optional.ofNullable(timeout);
   }

webauthn-server-core/src/test/scala/com/yubico/webauthn/data/JsonIoSpec.scala

@@ -384,6 +384,38 @@ class JsonIoSpec
         ) should equal(pkcco)
       }
     }
+
+    describe("has a toJson() method and a fromJson(String) factory method") {
+      it("which behave like a Jackson ObjectMapper.") {
+        forAll { req: PublicKeyCredentialCreationOptions =>
+          println(req)
+          val json1 = req.toJson
+          val json2 = JacksonCodecs.json.writeValueAsString(req)
+          json1 should equal(json2)
+
+          val parsed1 = PublicKeyCredentialCreationOptions.fromJson(json1)
+          val parsed2 = JacksonCodecs.json.readValue(
+            json2,
+            classOf[PublicKeyCredentialCreationOptions],
+          )
+          parsed1 should equal(parsed2)
+        }
+      }
+
+      it("which are stable over multiple serialization round-trips.") {
+        forAll { req: PublicKeyCredentialCreationOptions =>
+          println(req)
+          val encoded = req.toJson
+          val decoded = PublicKeyCredentialCreationOptions.fromJson(encoded)
+          val reencoded = decoded.toJson
+          val redecoded = PublicKeyCredentialCreationOptions.fromJson(reencoded)
+
+          decoded should equal(req)
+          redecoded should equal(req)
+          encoded should equal(reencoded)
+        }
+      }
+    }
   }
 
   describe("The class PublicKeyCredentialRequestOptions") {
@@ -413,6 +445,36 @@ class JsonIoSpec
         ) should equal(req.getPublicKeyCredentialRequestOptions)
       }
     }
+
+    describe("has a toJson() method and a fromJson(String) factory method") {
+      it("which behave like a Jackson ObjectMapper.") {
+        forAll { req: AssertionRequest =>
+          println(req)
+          val json1 = req.toJson
+          val json2 = JacksonCodecs.json.writeValueAsString(req)
+
+          val parsed1 = AssertionRequest.fromJson(json1)
+          val parsed2 =
+            JacksonCodecs.json.readValue(json2, classOf[AssertionRequest])
+          json1 should equal(json2)
+          parsed1 should equal(parsed2)
+        }
+      }
+
+      it("which are stable over multiple serialization round-trips.") {
+        forAll { req: AssertionRequest =>
+          println(req)
+          val encoded = req.toJson
+          val decoded = AssertionRequest.fromJson(encoded)
+          val reencoded = decoded.toJson
+          val redecoded = AssertionRequest.fromJson(reencoded)
+
+          decoded should equal(req)
+          redecoded should equal(req)
+          encoded should equal(reencoded)
+        }
+      }
+    }
   }
 
 }