[JAVA-18754] Upgraded to the latest version of commons-csv + Replaced… (#13496)

panos-kakos · web-flow · commit 73a6c2c83269 · 2023-02-23T22:42:26.000+05:30
* [JAVA-18754] Upgraded to the latest version of commons-csv + Replaced deprecated method

* [JAVA-18754]  Removed setUp method
diff --git a/libraries-apache-commons-io/pom.xml b/libraries-apache-commons-io/pom.xml
@@ -26,7 +26,7 @@
     </dependencies>
 
     <properties>
-        <commons-csv.version>1.9.0</commons-csv.version>
+        <commons-csv.version>1.10.0</commons-csv.version>
     </properties>
 
 </project>
diff --git a/libraries-apache-commons-io/src/test/java/com/baeldung/commons/io/csv/CSVReaderWriterUnitTest.java b/libraries-apache-commons-io/src/test/java/com/baeldung/commons/io/csv/CSVReaderWriterUnitTest.java
@@ -1,9 +1,11 @@
 package com.baeldung.commons.io.csv;
 
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import org.junit.jupiter.api.Test;
+
 import org.apache.commons.csv.CSVFormat;
 import org.apache.commons.csv.CSVPrinter;
 import org.apache.commons.csv.CSVRecord;
-import org.junit.Test;
 
 import java.io.FileReader;
 import java.io.IOException;
@@ -13,9 +15,7 @@
 import java.util.LinkedHashMap;
 import java.util.Map;
 
-import static org.junit.Assert.assertEquals;
-
-public class CSVReaderWriterUnitTest {
+class CSVReaderWriterUnitTest {
 
     public static final Map<String, String> AUTHOR_BOOK_MAP = Collections.unmodifiableMap(new LinkedHashMap<String, String>() {
         {
@@ -24,12 +24,24 @@ public class CSVReaderWriterUnitTest {
         }
     });
     public static final String[] HEADERS = { "author", "title" };
+
+    enum BookHeaders{
+        author, title
+    }
+
     public static final String EXPECTED_FILESTREAM = "author,title\r\n" + "Dan Simmons,Hyperion\r\n" + "Douglas Adams,The Hitchhiker's Guide to the Galaxy";
 
     @Test
-    public void givenCSVFile_whenRead_thenContentsAsExpected() throws IOException {
+    void givenCSVFile_whenReadWithArrayHeader_thenContentsAsExpected() throws IOException {
         Reader in = new FileReader("src/test/resources/book.csv");
-        Iterable<CSVRecord> records = CSVFormat.DEFAULT.withHeader(HEADERS).withFirstRecordAsHeader().parse(in);
+
+        CSVFormat csvFormat = CSVFormat.DEFAULT.builder()
+            .setHeader(HEADERS)
+            .setSkipHeaderRecord(true)
+            .build();
+
+        Iterable<CSVRecord> records = csvFormat.parse(in);
+
         for (CSVRecord record : records) {
             String author = record.get("author");
             String title = record.get("title");
@@ -38,9 +50,32 @@ public void givenCSVFile_whenRead_thenContentsAsExpected() throws IOException {
     }
 
     @Test
-    public void givenAuthorBookMap_whenWrittenToStream_thenOutputStreamAsExpected() throws IOException {
+    void givenCSVFile_whenReadWithEnumHeader_thenContentsAsExpected() throws IOException {
+        Reader in = new FileReader("src/test/resources/book.csv");
+
+        CSVFormat csvFormat = CSVFormat.DEFAULT.builder()
+            .setHeader(BookHeaders.class)
+            .setSkipHeaderRecord(true)
+            .build();
+
+        Iterable<CSVRecord> records = csvFormat.parse(in);
+
+        for (CSVRecord record : records) {
+            String author = record.get(BookHeaders.author);
+            String title = record.get(BookHeaders.title);
+            assertEquals(AUTHOR_BOOK_MAP.get(author), title);
+        }
+    }
+
+    @Test
+    void givenAuthorBookMap_whenWrittenToStream_thenOutputStreamAsExpected() throws IOException {
         StringWriter sw = new StringWriter();
-        try (final CSVPrinter printer = new CSVPrinter(sw, CSVFormat.DEFAULT.withHeader(HEADERS))) {
+
+        CSVFormat csvFormat = CSVFormat.DEFAULT.builder()
+            .setHeader(BookHeaders.class)
+            .build();
+
+        try (final CSVPrinter printer = new CSVPrinter(sw, csvFormat)) {
             AUTHOR_BOOK_MAP.forEach((author, title) -> {
                 try {
                     printer.printRecord(author, title);
@@ -49,7 +84,8 @@ public void givenAuthorBookMap_whenWrittenToStream_thenOutputStreamAsExpected()
                 }
             });
         }
-        assertEquals(EXPECTED_FILESTREAM, sw.toString().trim());
+        assertEquals(EXPECTED_FILESTREAM, sw.toString()
+            .trim());
     }
 
 }
