test(batch): simplify integration test setup

Author: bevzzz

src/it/java/io/weaviate/integration/BatchITest.java

@@ -1,16 +1,13 @@
 package io.weaviate.integration;
 
 import java.io.IOException;
-import java.util.Map;
-import java.util.UUID;
 
 import org.assertj.core.api.Assertions;
 import org.junit.BeforeClass;
 import org.junit.Test;
 
 import io.weaviate.ConcurrentTest;
 import io.weaviate.client6.v1.api.WeaviateClient;
-import io.weaviate.client6.v1.api.collections.Property;
 import io.weaviate.client6.v1.api.collections.WeaviateObject;
 import io.weaviate.containers.Container;
 import io.weaviate.containers.Weaviate;
@@ -27,17 +24,12 @@ public static void __() {
   public void test10_000Objects() throws IOException {
     var nsThings = ns("Things");
 
-    var things = client.collections.create(
-        nsThings,
-        c -> c.properties(Property.text("letter")));
+    var things = client.collections.create(nsThings);
 
     // Act
     try (var batch = things.batch.start()) {
       for (int i = 0; i < 10_000; i++) {
-        String uuid = UUID.randomUUID().toString();
-        batch.add(WeaviateObject.of(builder -> builder
-            .uuid(uuid)
-            .properties(Map.of("letter", uuid.substring(0, 1)))));
+        batch.add(WeaviateObject.of());
       }
     } catch (InterruptedException e) {
     }