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CsvFormatFilesystemStatisticsReportTest.java
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CsvFormatFilesystemStatisticsReportTest.java
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/*
* 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.flink.formats.csv;
import org.apache.flink.table.plan.stats.TableStats;
import org.apache.flink.table.planner.plan.stats.FlinkStatistic;
import org.apache.flink.table.types.DataType;
import org.junit.jupiter.api.BeforeEach;
import org.junit.jupiter.api.Test;
import org.junit.jupiter.api.io.TempDir;
import java.io.File;
import java.util.concurrent.ExecutionException;
import static org.assertj.core.api.Assertions.assertThat;
/**
* Test for statistics functionality in {@link CsvFormatFactory} in the case of file system source.
*/
class CsvFormatFilesystemStatisticsReportTest extends CsvFormatStatisticsReportTest {
@Override
@BeforeEach
public void setup(@TempDir File file) throws Exception {
super.setup(file);
}
@Test
void testCsvFileSystemStatisticsReport() throws ExecutionException, InterruptedException {
// insert data and get statistics by get plan.
DataType dataType = tEnv.from("sourceTable").getResolvedSchema().toPhysicalRowDataType();
tEnv.fromValues(dataType, getData()).executeInsert("sourceTable").await();
FlinkStatistic statistic = getStatisticsFromOptimizedPlan("select * from sourceTable");
assertThat(statistic.getTableStats()).isEqualTo(new TableStats(3));
}
}