org.apache.beam.sdk.extensions.sql.meta.provider.text.TextTableProviderTest.java Source code

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Here is the source code for org.apache.beam.sdk.extensions.sql.meta.provider.text.TextTableProviderTest.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.beam.sdk.extensions.sql.meta.provider.text;

import static org.apache.beam.sdk.schemas.Schema.toSchema;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertNotNull;
import static org.junit.Assert.assertTrue;

import com.alibaba.fastjson.JSONObject;
import java.util.stream.Stream;
import org.apache.beam.sdk.extensions.sql.BeamSqlTable;
import org.apache.beam.sdk.extensions.sql.meta.Table;
import org.apache.beam.sdk.schemas.Schema;
import org.apache.commons.csv.CSVFormat;
import org.junit.Test;

/** UnitTest for {@link TextTableProvider}. */
public class TextTableProviderTest {
    private TextTableProvider provider = new TextTableProvider();

    @Test
    public void testGetTableType() throws Exception {
        assertEquals("text", provider.getTableType());
    }

    @Test
    public void testBuildBeamSqlTable() throws Exception {
        Table table = mockTable("hello", null);
        BeamSqlTable sqlTable = provider.buildBeamSqlTable(table);

        assertNotNull(sqlTable);
        assertTrue(sqlTable instanceof BeamTextCSVTable);

        BeamTextCSVTable csvTable = (BeamTextCSVTable) sqlTable;
        assertEquals(CSVFormat.DEFAULT, csvTable.getCsvFormat());
        assertEquals("/home/admin/hello", csvTable.getFilePattern());
    }

    @Test
    public void testBuildBeamSqlTable_customizedFormat() throws Exception {
        Table table = mockTable("hello", "Excel");
        BeamSqlTable sqlTable = provider.buildBeamSqlTable(table);

        assertNotNull(sqlTable);
        assertTrue(sqlTable instanceof BeamTextCSVTable);

        BeamTextCSVTable csvTable = (BeamTextCSVTable) sqlTable;
        assertEquals(CSVFormat.EXCEL, csvTable.getCsvFormat());
    }

    private static Table mockTable(String name, String format) {
        JSONObject properties = new JSONObject();
        if (format != null) {
            properties.put("format", format);
        }
        return Table.builder().name(name).comment(name + " table").location("/home/admin/" + name)
                .schema(Stream.of(Schema.Field.nullable("id", Schema.FieldType.INT32),
                        Schema.Field.nullable("name", Schema.FieldType.STRING)).collect(toSchema()))
                .type("text").properties(properties).build();
    }
}