[HUDI-2757] Implement Hudi AWS Glue sync (#5076)

hudi-common/src/test/java/org/apache/hudi/common/util/TestCollectionUtils.java

@@ -0,0 +1,56 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+package org.apache.hudi.common.util;
+
+import org.junit.jupiter.api.Test;
+
+import java.util.Arrays;
+import java.util.Collections;
+import java.util.List;
+
+import static org.apache.hudi.common.util.CollectionUtils.batches;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertThrows;
+
+class TestCollectionUtils {
+
+  @Test
+  void getBatchesFromList() {
+    assertThrows(IllegalArgumentException.class, () -> {
+      batches(Collections.emptyList(), -1);
+    });
+
+    assertThrows(IllegalArgumentException.class, () -> {
+      batches(Collections.emptyList(), 0);
+    });
+
+    assertEquals(Collections.emptyList(), batches(Collections.emptyList(), 1));
+
+    List<List<Integer>> intsBatches1 = batches(Arrays.asList(1, 2, 3, 4, 5, 6), 3);
+    assertEquals(2, intsBatches1.size());
+    assertEquals(Arrays.asList(1, 2, 3), intsBatches1.get(0));
+    assertEquals(Arrays.asList(4, 5, 6), intsBatches1.get(1));
+
+    List<List<Integer>> intsBatches2 = batches(Arrays.asList(1, 2, 3, 4, 5, 6), 5);
+    assertEquals(2, intsBatches2.size());
+    assertEquals(Arrays.asList(1, 2, 3, 4, 5), intsBatches2.get(0));
+    assertEquals(Collections.singletonList(6), intsBatches2.get(1));
+  }
+}