Github user arina-ielchiieva commented on a diff in the pull request: https://github.com/apache/drill/pull/877#discussion_r129782338 --- Diff: exec/java-exec/src/test/java/org/apache/drill/exec/store/parquet/TestParquetMetadataVersion.java --- @@ -0,0 +1,130 @@ +/* + * 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.drill.exec.store.parquet; + +import org.apache.drill.common.exceptions.DrillRuntimeException; +import org.junit.Test; + +import static org.junit.Assert.assertEquals; +import static org.junit.Assert.assertTrue; + + +public class TestParquetMetadataVersion { + + @Test + public void testCorrectOnlyMajorVersion() throws Exception { + MetadataVersion parsedMetadataVersion = new MetadataVersion(MetadataVersion.Constants.V1); + MetadataVersion expectedMetadataVersion = new MetadataVersion(1, 0); + assertEquals("Parquet metadata version is parsed incorrectly", expectedMetadataVersion, parsedMetadataVersion); + } + + @Test + public void testCorrectMajorMinorVersions() throws Exception { + MetadataVersion parsedMetadataVersion = new MetadataVersion(MetadataVersion.Constants.V3_1); + MetadataVersion expectedMetadataVersion = new MetadataVersion(3, 1); + assertEquals("Parquet metadata version is parsed incorrectly", expectedMetadataVersion, parsedMetadataVersion); + } + + @Test + public void testTwoDigitNumberMajorVersion() throws Exception { + String twoDigitNumberMajorVersion = "v10.2"; + MetadataVersion parsedMetadataVersion = new MetadataVersion(twoDigitNumberMajorVersion); + MetadataVersion expectedMetadataVersion = new MetadataVersion(10, 2); + assertEquals("Parquet metadata version is parsed incorrectly", expectedMetadataVersion, parsedMetadataVersion); + } + + @Test + public void testCorrectTwoDigitNumberMinorVersion() throws Exception { + String twoDigitNumberMinorVersion = "v3.10"; + MetadataVersion parsedMetadataVersion = new MetadataVersion(twoDigitNumberMinorVersion); + MetadataVersion expectedMetadataVersion = new MetadataVersion(3, 10); + assertEquals("Parquet metadata version is parsed incorrectly", expectedMetadataVersion, parsedMetadataVersion); + } + + @Test(expected = DrillRuntimeException.class) + public void testVersionWithoutFirstLetter() throws Exception { + String versionWithoutFirstLetter = "3.1"; + try { + new MetadataVersion(versionWithoutFirstLetter); + } catch (DrillRuntimeException e) { + assertTrue("Not expected exception is obtained while parsing parquet metadata version", + e.getMessage().contains("Could not parse metadata")); + throw new DrillRuntimeException(e); --- End diff -- 1. `throw e`, no need to wrap it again in `DrillRuntimeException` 2. You can check that error message also contains corrupted version: `contains(String.format("Could not parse metadata version %s", versionWithoutFirstLetter)));` Please correct here and in tests below.
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