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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.poi.integration;
import static org.junit.jupiter.api.Assertions.assertEquals;
import static org.junit.jupiter.api.Assertions.assertTrue;
import java.io.PrintStream;
import java.io.UnsupportedEncodingException;
import java.nio.charset.StandardCharsets;
import org.apache.commons.io.output.UnsynchronizedByteArrayOutputStream;
import org.apache.poi.examples.xssf.eventusermodel.XLSX2CSV;
import org.apache.poi.openxml4j.opc.OPCPackage;
import org.apache.poi.openxml4j.opc.PackageAccess;
import org.apache.poi.xssf.XSSFTestDataSamples;
import org.junit.jupiter.api.AfterEach;
import org.junit.jupiter.api.BeforeEach;
import org.junit.jupiter.api.Test;
public class TestXLSX2CSV {
private PrintStream err;
private final UnsynchronizedByteArrayOutputStream errorBytes = new UnsynchronizedByteArrayOutputStream();
@BeforeEach
public void setUp() throws UnsupportedEncodingException {
// remember and replace default error streams
err = System.err;
PrintStream error = new PrintStream(errorBytes, true, StandardCharsets.UTF_8.name());
System.setErr(error);
}
@AfterEach
public void tearDown() {
// restore output-streams again
System.setErr(err);
// Print out found error
if (errorBytes.size() > 0) {
System.err.println("Had stderr: " + errorBytes.toString(StandardCharsets.UTF_8));
}
}
@Test
public void testNoArgument() throws Exception {
// returns with some System.err
XLSX2CSV.main(new String[0]);
String output = errorBytes.toString(StandardCharsets.UTF_8);
assertTrue(output.contains("XLSX2CSV <xlsx file>"), "Had: " + output);
}
@Test
public void testInvalidFile() throws Exception {
// returns with some System.err
XLSX2CSV.main(new String[] { "not-existing-file.xlsx" });
String output = errorBytes.toString(StandardCharsets.UTF_8);
assertTrue(output.contains("Not found or not a file: not-existing-file.xlsx"), "Had: " + output);
}
@Test
public void testSampleFile() throws Exception {
final UnsynchronizedByteArrayOutputStream outputBytes = new UnsynchronizedByteArrayOutputStream();
PrintStream out = new PrintStream(outputBytes, true, StandardCharsets.UTF_8.name());
// The package open is instantaneous, as it should be.
try (OPCPackage p = OPCPackage.open(XSSFTestDataSamples.getSampleFile("sample.xlsx").getAbsolutePath(), PackageAccess.READ)) {
XLSX2CSV xlsx2csv = new XLSX2CSV(p, out, -1);
xlsx2csv.process();
}
String errorOutput = errorBytes.toString(StandardCharsets.UTF_8);
assertEquals("", errorOutput);
String output = outputBytes.toString(StandardCharsets.UTF_8);
assertTrue(output.contains("\"Lorem\",111"), "Had: " + output);
assertTrue(output.contains(",\"hello, xssf\",,\"hello, xssf\""), "Had: " + output);
}
@Test
public void testMinColumns() throws Exception {
final UnsynchronizedByteArrayOutputStream outputBytes = new UnsynchronizedByteArrayOutputStream();
PrintStream out = new PrintStream(outputBytes, true, StandardCharsets.UTF_8.name());
// The package open is instantaneous, as it should be.
try (OPCPackage p = OPCPackage.open(XSSFTestDataSamples.getSampleFile("sample.xlsx").getAbsolutePath(), PackageAccess.READ)) {
XLSX2CSV xlsx2csv = new XLSX2CSV(p, out, 5);
xlsx2csv.process();
}
String errorOutput = errorBytes.toString(StandardCharsets.UTF_8);
assertEquals("", errorOutput);
String output = outputBytes.toString(StandardCharsets.UTF_8);
assertTrue(output.contains("\"Lorem\",111,,,"), "Had: " + output);
assertTrue(output.contains(",\"hello, xssf\",,\"hello, xssf\","), "Had: " + output);
}
}
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