Convert nested-intersection-union unit test to a schema fixture test

test/inputs/schema/nested-intersection-union.1.fail.union.json

@@ -0,0 +1,8 @@
+{
+    "input": [
+        {
+            "content": "valid item"
+        },
+        ["this array is not a valid item"]
+    ]
+}

test/inputs/schema/nested-intersection-union.1.json

@@ -0,0 +1,20 @@
+{
+    "input": [
+        {
+            "content": "hello",
+            "id": "item-1",
+            "output": "42",
+            "summary": "all fields present"
+        },
+        {
+            "content": "just a message"
+        },
+        {
+            "id": "item-2",
+            "output": "function result"
+        },
+        {
+            "summary": "just reasoning"
+        }
+    ]
+}

test/inputs/schema/nested-intersection-union.schema

@@ -0,0 +1,58 @@
+{
+    "$schema": "http://json-schema.org/draft-07/schema#",
+    "type": "object",
+    "additionalProperties": false,
+    "properties": {
+        "input": {
+            "type": "array",
+            "items": {
+                "oneOf": [
+                    { "$ref": "#/definitions/Message" },
+                    { "$ref": "#/definitions/Item" }
+                ]
+            }
+        }
+    },
+    "required": ["input"],
+    "definitions": {
+        "Message": {
+            "type": "object",
+            "properties": {
+                "content": { "type": "string" }
+            },
+            "required": ["content"]
+        },
+        "Item": {
+            "oneOf": [
+                { "$ref": "#/definitions/FunctionOutput" },
+                { "$ref": "#/definitions/ReasoningItem" }
+            ]
+        },
+        "FunctionOutput": {
+            "allOf": [
+                { "$ref": "#/definitions/BaseItem" },
+                {
+                    "type": "object",
+                    "properties": {
+                        "output": { "type": "string" }
+                    },
+                    "required": ["output"]
+                }
+            ]
+        },
+        "BaseItem": {
+            "type": "object",
+            "properties": {
+                "id": { "type": "string" }
+            },
+            "required": ["id"]
+        },
+        "ReasoningItem": {
+            "type": "object",
+            "properties": {
+                "summary": { "type": "string" }
+            },
+            "required": ["summary"]
+        }
+    }
+}