issues/258 - Fix for option with byte array child.

build.gradle

@@ -14,7 +14,7 @@ apply plugin: 'java'
 
 group = 'network.casper'
 // Version number update for release
-version='2.5.2'
+version='2.5.3'
 sourceCompatibility = 1.8
 targetCompatibility = 1.8
 

src/main/java/com/casper/sdk/model/clvalue/AbstractCLValueWithChildren.java

@@ -38,10 +38,10 @@ protected void childTypesSet() {
     protected void populateChildTypesFromParent(final AbstractCLValue<?, ?> child, final AbstractCLType type) {
         if (type instanceof AbstractCLTypeWithChildren) {
             if (child.getClType() instanceof AbstractCLTypeWithChildren) {
-                ((AbstractCLTypeWithChildren) child.getClType()).setChildTypes(((AbstractCLTypeWithChildren)type).getChildTypes());
-            } else if (child instanceof CLValueByteArray) {
-                ((CLValueByteArray) child).setClType((CLTypeByteArray) ((AbstractCLTypeWithChildren)type).getChildTypes().get(0));
+                ((AbstractCLTypeWithChildren) child.getClType()).setChildTypes(((AbstractCLTypeWithChildren) type).getChildTypes());
             }
+        } else if (type instanceof CLTypeByteArray) {
+            ((CLValueByteArray) child).setClType((CLTypeByteArray) type);
         }
     }
 

src/main/java/com/casper/sdk/model/clvalue/cltype/AbstractCLTypeWithChildren.java

@@ -40,6 +40,10 @@ protected void setChildTypeObjects(final List<Object> childTypeObjects)
         this.loadCLTypes(childTypeObjects);
     }
 
+    public List<AbstractCLType> getChildTypes() {
+        return childTypes == null ? this.childTypes = new ArrayList<>() : childTypes;
+    }
+
     protected List<Object> getChildTypeObjects() {
         if (this.childTypeObjects == null) {
             this.childTypeObjects = new ArrayList<>();

src/main/java/com/casper/sdk/model/clvalue/cltype/CLTypeOption.java

@@ -69,7 +69,8 @@ public void serializeChildTypes(final SerializerBuffer ser) throws NoSuchTypeExc
     }
 
     @Override
-    public void deserializeChildTypes(final DeserializerBuffer deser) throws ValueDeserializationException, NoSuchTypeException, DynamicInstanceException {
+    public void deserializeChildTypes(final DeserializerBuffer deser) throws
+            ValueDeserializationException, NoSuchTypeException, DynamicInstanceException {
         setOptionType(deserializeChildType(deser));
     }
 }

src/test/java/com/casper/sdk/model/clvalue/CLValueTests.java

@@ -7,6 +7,7 @@
 import com.casper.sdk.model.clvalue.serde.Target;
 import com.casper.sdk.model.deploy.NamedArg;
 import com.casper.sdk.model.key.PublicKey;
+import com.fasterxml.jackson.databind.ObjectMapper;
 import com.syntifi.crypto.key.AbstractPublicKey;
 import com.syntifi.crypto.key.Ed25519PrivateKey;
 import com.syntifi.crypto.key.Secp256k1PrivateKey;
@@ -384,4 +385,52 @@ void nestedOptionWithMap() throws Exception {
         final CLValueOption deserialized = (CLValueOption) clValueOption.deserialize(new DeserializerBuffer(bytes), Target.BYTE);
         assertThat(deserialized.getBytes(), is(clValueOption.getBytes()));
     }
+
+    @Test
+    void testOptionByteTypeSerialization() throws Exception {
+
+        final String hexBytes = "d2029649";
+        CLValueOption clValueOption = new CLValueOption(Optional.of(new CLValueByteArray(Hex.decode(hexBytes))));
+        final SerializerBuffer ser = new SerializerBuffer();
+        assertThat(clValueOption.getBytes(), is("01" + hexBytes));
+        clValueOption.serialize(ser, Target.BYTE);
+
+        final byte[] bytes = ser.toByteArray();
+
+        assertThat(bytes, is(Hex.decode("0500000001d20296490D0F04000000")));
+
+        final String json = "{\n" +
+                "  \"cl_type\" : {\n" +
+                "    \"Option\" : {\n" +
+                "      \"ByteArray\" : 4\n" +
+                "    }\n" +
+                "    },\n" +
+                "    \"bytes\" : \"01d2029649\",\n" +
+                "    \"parsed\" : \"d2029649\"\n" +
+                "}";
+
+        final ObjectMapper objectMapper = new ObjectMapper();
+        final CLValueOption fromJson = objectMapper.reader().readValue(json, CLValueOption.class);
+        assertThat(fromJson.getBytes(), is("01" + hexBytes));
+    }
+
+    @Test
+    void testEmptyOptionSerialization() throws Exception {
+
+        CLValueOption clValueOption = new CLValueOption(Optional.empty());
+        clValueOption.getClType().setOptionType(new CLTypeString());
+        final SerializerBuffer ser = new SerializerBuffer();
+        assertThat(clValueOption.getBytes(), is("00"));
+        clValueOption.serialize(ser, Target.BYTE);
+
+        final byte[] bytes = ser.toByteArray();
+        assertThat(bytes, is(Hex.decode("01000000000D0A")));
+
+        final CLValueOption deserialized = (CLValueOption) clValueOption.deserialize(new DeserializerBuffer(bytes), Target.BYTE);
+        assertThat(deserialized.getBytes(), is(clValueOption.getBytes()));
+        assertThat(deserialized.getClType().getOptionType().getClTypeData(), is(CLTypeData.STRING));
+
+        clValueOption = new CLValueOption(Optional.empty());
+        assertThat(clValueOption.getBytes(), is("00"));
+    }
 }