HIVE-11959 : add simple test case for TestTableIterable (Thejas M Nair via Ashutosh Chauhan)
Project: http://git-wip-us.apache.org/repos/asf/hive/repo Commit: http://git-wip-us.apache.org/repos/asf/hive/commit/42fa60af Tree: http://git-wip-us.apache.org/repos/asf/hive/tree/42fa60af Diff: http://git-wip-us.apache.org/repos/asf/hive/diff/42fa60af Branch: refs/heads/llap Commit: 42fa60af4af204227a8c69d91084282c7a66dfc8 Parents: 010157e Author: Thejas Nair <the...@hortonworks.com> Authored: Sun Apr 10 17:30:38 2016 -0700 Committer: Thejas Nair <the...@hortonworks.com> Committed: Sun Apr 10 17:30:38 2016 -0700 ---------------------------------------------------------------------- .../hive/ql/metadata/TestTableIterable.java | 67 ++++++++++++++++++++ 1 file changed, 67 insertions(+) ---------------------------------------------------------------------- http://git-wip-us.apache.org/repos/asf/hive/blob/42fa60af/ql/src/test/org/apache/hadoop/hive/ql/metadata/TestTableIterable.java ---------------------------------------------------------------------- diff --git a/ql/src/test/org/apache/hadoop/hive/ql/metadata/TestTableIterable.java b/ql/src/test/org/apache/hadoop/hive/ql/metadata/TestTableIterable.java new file mode 100644 index 0000000..f6ebcce --- /dev/null +++ b/ql/src/test/org/apache/hadoop/hive/ql/metadata/TestTableIterable.java @@ -0,0 +1,67 @@ +/** + * 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.hadoop.hive.ql.metadata; + +import java.util.ArrayList; +import java.util.Arrays; +import java.util.Iterator; +import java.util.List; + +import org.apache.hadoop.hive.metastore.HiveMetaStoreClient; +import org.junit.Test; +import org.apache.hadoop.hive.metastore.api.InvalidOperationException; +import org.apache.hadoop.hive.metastore.api.MetaException; +import org.apache.hadoop.hive.metastore.api.Table; +import org.apache.hadoop.hive.metastore.api.UnknownDBException; +import org.apache.thrift.TException; + +import static org.junit.Assert.*; +import static org.mockito.Mockito.*; +/** + * Unit tests for TableIterable + */ +public class TestTableIterable { + + @Test + public void testNumReturned() throws MetaException, InvalidOperationException, UnknownDBException, TException { + HiveMetaStoreClient msc = mock(HiveMetaStoreClient.class); + + + // create a mocked metastore client that returns 3 table objects every time it is called + // will use same size for TableIterable batch fetch size + List<Table> threeTables = Arrays.asList(new Table(), new Table(), new Table()); + when(msc.getTableObjectsByName(anyString(), anyListOf(String.class))).thenReturn(threeTables); + + List<String> tableNames = Arrays.asList("a", "b", "c", "d", "e", "f"); + TableIterable tIterable = new TableIterable(msc, "dummy", tableNames, threeTables.size()); + tIterable.iterator(); + + Iterator<Table> tIter = tIterable.iterator(); + int size = 0; + while(tIter.hasNext()) { + size++; + tIter.next(); + } + assertEquals("Number of table objects returned", size, tableNames.size()); + + verify(msc).getTableObjectsByName("dummy", Arrays.asList("a","b","c")); + verify(msc).getTableObjectsByName("dummy", Arrays.asList("d","e","f")); + + } +}
