reproduce getkin#542

Signed-off-by: Pierre Fenoll <pierrefenoll@gmail.com>

openapi3/issue542_test.go

@@ -0,0 +1,19 @@
+package openapi3
+
+import (
+	"testing"
+
+	"github.com/stretchr/testify/require"
+)
+
+func TestIssue542(t *testing.T) {
+	sl := NewLoader()
+
+	doc, err := sl.LoadFromFile("testdata/issue542.yml")
+	require.NoError(t, err)
+
+	err = doc.Validate(sl.Context)
+	require.NoError(t, err)
+
+	require.Empty(t, doc.Components.Schemas["Cat"].Value.AnyOf[1].Value.Properties["offspring"])
+}

openapi3/testdata/issue542.yml

@@ -0,0 +1,37 @@
+openapi: "3.0.0"
+info:
+  version: 1.0.0
+  title: Swagger Petstore
+  license:
+    name: MIT
+servers:
+  - url: http://petstore.swagger.io/v1
+paths:
+  /pets:
+    patch:
+      requestBody:
+        content:
+          application/json:
+            schema:
+              oneOf:
+                - $ref: '#/components/schemas/Cat'
+                - $ref: '#/components/schemas/Kitten'
+              discriminator:
+                propertyName: pet_type
+      responses:
+        '200':
+          description: Updated
+components:
+  schemas:
+    Cat:
+      anyOf:
+        - $ref: '#/components/schemas/Kitten'
+        - type: object
+          properties:
+            hunts:
+              type: boolean
+            age:
+              type: integer
+            offspring:
+    Kitten:
+      $ref: '#/components/schemas/Cat'