Syncs validation properties for arraymodels (#7357)

* Syncs validation properties for arraymodels

* Adds arrayModelHasValidation test

modules/openapi-generator/src/main/java/org/openapitools/codegen/DefaultCodegen.java

@@ -2272,6 +2272,7 @@ public class DefaultCodegen implements CodegenConfig {
             m.isArrayModel = true;
             m.arrayModelType = fromProperty(name, schema).complexType;
             addParentContainer(m, name, schema);
+            ModelUtils.syncValidationProperties(schema, m);
         } else if (schema instanceof ComposedSchema) {
             final ComposedSchema composed = (ComposedSchema) schema;
             Map<String, Schema> properties = new LinkedHashMap<String, Schema>();

modules/openapi-generator/src/test/java/org/openapitools/codegen/DefaultCodegenTest.java

@@ -2253,4 +2253,17 @@ public class DefaultCodegenTest {
         assertEquals(openAPI.getComponents().getSchemas().size(), 2);
         assertNull(cm.getDiscriminator());
     }
+
+    @Test
+    public void arrayModelHasValidation() {
+        final OpenAPI openAPI = TestUtils.parseFlattenSpec("src/test/resources/3_0/issue7356.yaml");
+        final DefaultCodegen codegen = new DefaultCodegen();
+        codegen.setOpenAPI(openAPI);
+
+        String modelName = "ArrayWithValidations";
+        Schema sc = openAPI.getComponents().getSchemas().get(modelName);
+        CodegenModel cm = codegen.fromModel(modelName, sc);
+        assertEquals((int) cm.getMinItems(), 1);
+    }
+
 }

modules/openapi-generator/src/test/resources/3_0/issue7356.yaml

@@ -0,0 +1,14 @@
+openapi: 3.0.1
+info:
+  title: My title
+  description: API under test
+  version: 1.0.7
+servers:
+  - url: https://localhost:9999/root
+paths:
+components:
+  schemas:
+    ArrayWithValidations:
+      type: array
+      minItems: 1
+      items: {}