fixes problem with joining validation errors with different nesting l…

…evels

src/main/kotlin/com/github/erosb/jsonsKema/ValidationFailure.kt

@@ -64,7 +64,7 @@ internal class AggregatingValidationFailure(
 
     override fun join(parent: Schema, instance: IJsonValue, other: ValidationFailure): ValidationFailure {
         if (instance != this.instance) {
-            TODO("something went wrong: $instance vs ${this.instance}")
+            return AggregatingValidationFailure(parent, instance, _causes + other)
         }
         _causes.add(other)
         return this

src/test/kotlin/com/github/erosb/jsonsKema/Issue109ReproTest.kt

@@ -1,6 +1,7 @@
 package com.github.erosb.jsonsKema
 
 import com.github.erosb.jsonsKema.Validator.Companion.forSchema
+import org.assertj.core.api.Assertions.assertThat
 import org.junit.jupiter.api.Test
 
 class Issue109ReproTest {
@@ -75,7 +76,59 @@ class Issue109ReproTest {
         """.trimIndent()
         ).parse()
 
-        val failure = validator.validate(instance)
-        println(failure)
+        val failure = validator.validate(instance)!!
+
+        assertThat(failure.causes).hasSize(3)
+    }
+
+    @Test
+    fun simpler() {
+        val schemaJson = JsonParser(
+            """
+        {
+          "${'$'}schema": "https://json-schema.org/draft/2020-12/schema",
+          "type": "object",
+          "properties": {
+            "aaa": {
+              "properties": {
+                "aaa1": {
+                   "const": 1
+                },
+                "aaa2": {
+                  "const": 1
+                }
+              }
+            },
+            "bbb": {
+               "const": 1
+            }
+          }
+        }
+        
+        """.trimIndent()
+        ).parse()
+        val schema = SchemaLoader(schemaJson).load()
+        val validator = forSchema(schema)
+        val instance = JsonParser(
+            """
+        {
+            "aaa": {
+                "aaa1": 0,
+                "aaa2": 0
+            },
+            "bbb": 0
+        }
+        
+        """.trimIndent()
+        ).parse()
+
+        val failure = validator.validate(instance)!!
+
+        println(failure.toJSON())
+
+        assertThat(failure.causes).hasSize(3)
+        failure.causes.find { it.instance.location.pointer.toString() == "#/aaa/aaa1" }!!
+        failure.causes.find { it.instance.location.pointer.toString() == "#/aaa/aaa2" }!!
+        failure.causes.find { it.instance.location.pointer.toString() == "#/bbb" }!!
     }
 }