include both properties and contained nodes in NewNode.copy (#106)

Author: mpollmeier

codegen/src/main/scala/overflowdb/codegen/CodeGen.scala

@@ -1674,8 +1674,8 @@ class CodeGen(schema: Schema) {
           }
       }.mkString("\n")
 
-      val copyPropertiesImpl = properties.map { property =>
-        val memberName = camelCase(property.name)
+      val copyFieldsImpl = fieldDescriptions.map { field =>
+        val memberName = field.name
         s"newInstance.$memberName = this.$memberName"
       }.mkString("\n")
 
@@ -1697,7 +1697,7 @@ class CodeGen(schema: Schema) {
          |
          |  override def copy: this.type = {
          |    val newInstance = new New$nodeClassName
-         |    $copyPropertiesImpl
+         |    $copyFieldsImpl
          |    newInstance.asInstanceOf[this.type]
          |  }
          |

integration-tests/tests/src/test/scala/Schema04Test.scala

@@ -168,4 +168,21 @@ class Schema04Test extends AnyWordSpec with Matchers {
     node1.intList shouldBe IndexedSeq(1,2,3)
     edge1.intList shouldBe IndexedSeq(3,4,5)
   }
+
+  "NewNode.copy includes contained nodes" in {
+    val node1 = NewNode1()
+      .bool(true)
+      .str("foo")
+      .intList(Seq(1,2,3): Seq[Integer])
+
+    val node2 = NewNode1().node1Inner(node1)
+
+    val node1Copy = node1.copy
+    node1Copy.bool shouldBe true
+    node1Copy.str shouldBe "foo"
+    node1Copy.intList shouldBe Seq(1,2,3)
+
+    val node2Copy = node2.copy
+    node2Copy.node1Inner shouldBe node1
+  }
 }