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/**
* ============LICENSE_START=======================================================
* org.onap.aai
* ================================================================================
* Copyright © 2017 AT&T Intellectual Property. All rights reserved.
* ================================================================================
* Licensed 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.
* ============LICENSE_END=========================================================
*
* ECOMP is a trademark and service mark of AT&T Intellectual Property.
*/
package org.onap.aai.util;
import org.junit.After;
import org.junit.Before;
import org.junit.Rule;
import org.junit.Test;
import org.powermock.modules.agent.PowerMockAgent;
import org.powermock.modules.junit4.rule.PowerMockRule;
import java.io.*;
import java.nio.file.Files;
import java.nio.file.Paths;
import static org.junit.Assert.assertTrue;
import static org.junit.Assert.fail;
public class AAICSVWriterTest {
@Rule
public PowerMockRule rule = new PowerMockRule();
static {
PowerMockAgent.initializeIfNeeded();
}
Writer writer;
File f;
AAICSVWriter testObj;
String fileName = "test_csvWriter.csv";
String lineEnd = "\n";
char quoteChar = '\"';
String separator = ",";
String str1[], str2[];
/**
* Initialize.
*/
@Before
public void initialize(){
str1 = new String[]{"s0", "s1"};
str2 = new String[]{"t0", "t1"};
try {
f = new File(fileName);
f.createNewFile();
writer = new PrintWriter(f);
testObj = new AAICSVWriter(new FileWriter(fileName), separator, quoteChar, lineEnd);
} catch (FileNotFoundException e) {
fail("Input csv file not found.");
e.printStackTrace();
} catch (IOException e) {
fail("Can't create csv file.");
e.printStackTrace();
}
}
/**
* Test writeNextLine with String arrays.
*/
@Test
public void testWriteNextLine(){
populateAndGetFileSize(false, str1, str2);
String wholeText = str1[0] + separator + str1[1] + lineEnd + str2[0] + separator + str2[1] + lineEnd;
assertTrue("CSV file missing text", allLinesFound(wholeText));
}
/**
* Test writeNextLine with null.
*/
@Test
public void testWriteNextLine_withNull(){
populateAndGetFileSize(false, null, null);
assertTrue("CSV file should not contain any text", f.length() == 0);
}
/**
* Test writeColumn with String arrays.
*/
@Test
public void testWriteColumn(){
populateAndGetFileSize(true, str1, str2);
String wholeText = str1[0] + str1[1] + lineEnd + str2[0] + str2[1] + lineEnd;
assertTrue("CSV file missing text", allLinesFound(wholeText));
}
/**
* Test writeColumn with null.
*/
@Test
public void testWriteColumn_withNull(){
populateAndGetFileSize(true, null, null);
assertTrue("CSV file should not contain any text", f.length() == 0);
}
/**
* Helper method to create file with given data.
*
* @param isColumnWise True if csv file is to be written in column wise, false otherwise
* @param c1 First set of data
* @param c2 Second set of data
*/
private void populateAndGetFileSize(boolean isColumnWise, String c1[], String c2[]){
if ( isColumnWise ){
testObj.writeColumn(c1);
testObj.writeColumn(c2);
} else{
testObj.writeNext(c1, false);
testObj.writeNext(c2, false);
}
try {
testObj.close();
} catch (IOException e) {
fail("Can't close stream");
e.printStackTrace();
}
}
/**
* Helper method to check if a file contains required data.
*
* @param all Data to look for
* @return True if data is found, false otherwise
*/
private boolean allLinesFound(String all){
String fileContents = "";
try {
fileContents = new String(Files.readAllBytes(Paths.get(fileName)));
} catch (IOException e1) {
fail("csv file not found");
e1.printStackTrace();
}
return all.equals(fileContents);
}
/**
* Cleanup.
*/
@After
public void cleanup(){
if ( f.exists() ){
f.delete();
}
}
}
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