fix: support multiple nested allOf (multiple-allOf.yml)

Author: ivangsa

src/main/java/io/zenwave360/jsonrefparser/$RefParser.java

@@ -154,12 +154,25 @@ private void mergeAllOf(Object value, String[] paths, URI currentFileURL) {
             for (int i = 0; i < allOf.size(); i++) {
                 if(allOf.get(i) instanceof Map) {
                     Map<String, Object> item = (Map<String, Object>) allOf.get(i);
-                    mergedAllOfObject.putAll(item);
-                    if(item.containsKey("properties")) {
-                        properties.putAll((Map) item.get("properties"));
-                    }
-                    if(item.containsKey("required")) {
-                        required.addAll((List) item.get("required"));
+                    if(item.keySet().size() == 1 && item.containsKey("allOf")) {
+                        List<Map<String, Object>> items = (List) item.get("allOf");
+                        for (Map<String, Object> innerItem : items) {
+                            mergedAllOfObject.putAll(innerItem);
+                            if(innerItem.containsKey("properties")) {
+                                properties.putAll((Map) innerItem.get("properties"));
+                            }
+                            if(innerItem.containsKey("required")) {
+                                required.addAll((List) innerItem.get("required"));
+                            }
+                        }
+                    } else {
+                        mergedAllOfObject.putAll(item);
+                        if(item.containsKey("properties")) {
+                            properties.putAll((Map) item.get("properties"));
+                        }
+                        if(item.containsKey("required")) {
+                            required.addAll((List) item.get("required"));
+                        }
                     }
                 } else {
                     throw new RuntimeException("Could not understand allOf: " + allOf.get(i));

src/test/java/io/zenwave360/jsonrefparser/ParserTest.java

@@ -16,6 +16,8 @@
 import java.io.File;
 import java.io.IOException;
 import java.net.URI;
+import java.util.List;
+import java.util.Map;
 
 import static io.zenwave360.jsonrefparser.$RefParserOptions.OnCircular.FAIL;
 
@@ -162,6 +164,18 @@ public void testDereferenceAndMergeAllOf() throws IOException {
         assertNoRefs(refs.schema());
     }
 
+    @Test
+    public void testDereferenceAndMerge_MultipleAllOf() throws IOException {
+        File file = new File("src/test/resources/asyncapi/multiple-allOf.yml");
+        $RefParser parser = new $RefParser(file).parse();
+        $Refs refs = parser.dereference().mergeAllOf().getRefs();
+        //        Assert.assertFalse(refs.circular);
+        //        System.out.println(mapper.writerWithDefaultPrettyPrinter().writeValueAsString(refs.schema()));
+        assertNoRefs(refs.schema());
+        var properties = (Map) refs.get("$.components.schemas.Test.properties");
+        Assert.assertEquals(4, properties.size());
+    }
+
     @Test
     public void testDereference() throws IOException {
         File file = new File("src/test/resources/openapi/allOf.yml");

src/test/resources/asyncapi/multiple-allOf.yml

@@ -0,0 +1,44 @@
+asyncapi: 3.0.0
+info:
+  title: Test-API
+  version: '1.0'
+channels:
+  testTopic:
+    messages:
+      test:
+        name: Test
+        payload:
+          $ref: '#/components/schemas/Test'
+operations:
+  publishTest:
+    action: send
+    summary: publish events
+    channel:
+      $ref: '#/channels/testTopic'
+components:
+  schemas:
+    Test1:
+      allOf:
+        - type: object
+          properties:
+            test1a:
+              type: string
+        - type: object
+          properties:
+            test1b:
+              type: string
+    Test2:
+      allOf:
+        - type: object
+          properties:
+            test2a:
+              type: string
+        - type: object
+          properties:
+            test2b:
+              type: string
+    Test:
+      type: object
+      allOf:
+        - $ref: '#/components/schemas/Test1'
+        - $ref: '#/components/schemas/Test2'