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Updating code related to the article BAEL-7017 (#15009)

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* Update pom.xml

Update pom with the apache dependency

* Update WriteHashmaptoCVSFileUnitTest.java

Adding a new test method to solve the problem using Apache Commons CSV.
This commit is contained in:
Mo Helmy 2023-10-18 04:59:54 +03:00 committed by GitHub
parent 7d99ed3d2d
commit 3298d5fb96
2 changed files with 26 additions and 17 deletions
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7
core-java-modules/core-java-collections-maps-7/pom.xml
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@ -73,6 +73,11 @@
<version>4.13.1</version> <version>4.13.1</version>
<scope>test</scope> <scope>test</scope>
</dependency> </dependency>
<dependency>
<groupId>org.apache.commons</groupId>
<artifactId>commons-csv</artifactId>
<version>1.5</version>
</dependency>
</dependencies> </dependencies>
</project> </project>

36
core-java-modules/core-java-collections-maps-7/src/test/java/com/baeldung/map/writehashmaptocsvfile/WriteHashmaptoCVSFileUnitTest.java
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@ -10,18 +10,26 @@ import java.nio.file.Paths;
import java.util.HashMap; import java.util.HashMap;
import java.util.Map; import java.util.Map;
import org.apache.commons.csv.CSVFormat;
import org.apache.commons.csv.CSVPrinter;
import static org.junit.Assert.assertEquals; import static org.junit.Assert.assertEquals;
import static org.junit.jupiter.api.Assertions.assertTrue; import static org.junit.jupiter.api.Assertions.assertTrue;
public class WriteHashmaptoCVSFileUnitTest { public class WriteHashmaptoCVSFileUnitTest {
public Map<String, String> employeeData;
@Test public WriteHashmaptoCVSFileUnitTest() {
public void givenEmployeeData_whenWriteToCSV_thenCSVFileIsCreated() { employeeData = new HashMap<>();
Map<String, String> employeeData = new HashMap<>();
employeeData.put("Name", "John Doe"); employeeData.put("Name", "John Doe");
employeeData.put("Title", "Software Engineer"); employeeData.put("Title", "Software Engineer");
employeeData.put("Department", "Engineering"); employeeData.put("Department", "Engineering");
employeeData.put("Salary", "75000"); employeeData.put("Salary", "75000");
}
@Test
public void givenEmployeeData_whenWriteToCSVUsingFileWriter_thenCSVFileIsCreated() {
try (FileWriter csvWriter = new FileWriter("employee_data.csv")) { try (FileWriter csvWriter = new FileWriter("employee_data.csv")) {
// Write header row // Write header row
csvWriter.append("Name,Title,Department,Salary\n"); csvWriter.append("Name,Title,Department,Salary\n");
@ -40,23 +48,19 @@ public class WriteHashmaptoCVSFileUnitTest {
} }
@Test @Test
public void givenCSVFile_whenRead_thenContentsMatchExpected() { public void givenCSVFile_whenWriteToCSVUsingApacheCommons_thenContentsMatchExpected() {
// Read the actual content of the CSV file
StringBuilder actualCsvContent = new StringBuilder();
try {
Files.lines(Paths.get("employee_data.csv"))
.forEach(line -> actualCsvContent.append(line).append("\n"));
// Define the expected CSV content try (CSVPrinter csvPrinter = new CSVPrinter(new FileWriter("employee_data2.csv"), CSVFormat.DEFAULT)) {
String expectedCsvContent = "Name,Title,Department,Salary\n" + // Write header row
"John Doe,Software Engineer,Engineering,75000\n"; csvPrinter.printRecord("Name", "Title", "Department", "Salary");
// Compare the actual content with the expected content // Write data row
assertEquals(expectedCsvContent, actualCsvContent.toString()); csvPrinter.printRecord(employeeData.get("Name"), employeeData.get("Title"), employeeData.get("Department"), employeeData.get("Salary"));
System.out.println("CSV file created successfully.");
} catch (IOException e) { } catch (IOException e) {
e.printStackTrace(); e.printStackTrace();
} }
// Ensure the CSV file exists
assertTrue(new File("employee_data2.csv").exists());
} }
} }