normally.................you can download junit.jar file and add to the project.
But in maven project, You should add the following dependency for download junit.jar file
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>${junit.version}</version>
<scope>test</scope>
</dependency>
This is small Testing Example...................................
import java.util.ArrayList;
import java.util.List;
public class StringConverter {
/*if input is String List, you can get Comma seperated String by using this method*/
public String convertToString(List<String> stringList) {
StringBuilder concatanatedString = new StringBuilder();
for(String string : stringList) {
concatanatedString.append(string);
concatanatedString.append(",");
}
String commaSeperatedString;
try{
commaSeperatedString = concatanatedString.toString().substring(0,
concatanatedString.toString().length() - 1);
}catch (Exception e){
commaSeperatedString ="";
}
return commaSeperatedString;
}
/*if input is comma seperated string, you can get String List by using this method*/
public List<String> convertToSet(String commaSeperatedList) {
String[] StringArray = commaSeperatedList.split(",");
List<String> stringList = new ArrayList<String>();
for (int i = 0; i < StringArray.length ;i++){
stringList.add(StringArray[i].trim());
}
return stringList;
}
}
This unit Testing class for StringConverter......................
@BeforeClass ------------------> Setup all variable
@Test---------------------------> run test method.............
import org.testng.annotations.AfterClass;
import org.testng.annotations.BeforeClass;
import org.testng.annotations.Test;
import org.testng.Assert;
import java.util.ArrayList;
import java.util.HashSet;
import java.util.List;
public class StringConverterTest {
private StringConverter converter;
private List<String> List1;
private String stringComma;
@BeforeClass
public void setup() {
converter = new StringConverter();
List1 = new ArrayList<String>();
List1.add("st1");
List1.add("st2");
List1.add("st3");
List1.add("st4");
List1.add("st5");
List1.add("st6");
stringComma = "aa,bb,pp,dd,ee,ff,mm";
}
@AfterClass
public void tearDown() {
}
@Test
public void testConvertToStringSuccess() {
String out = converter.convertToString(List1);
Assert.assertEquals("st1,st2,st3,st4,st5,st6", out);
}
@Test
public void testConvertToListSuccess() {
List<String> stringList = converter.convertToSet(stringComma);
Assert.assertEquals("aa", stringList.get(0));
Assert.assertEquals("pp", stringList.get(2));
Assert.assertEquals("ee", stringList.get(4));
Assert.assertEquals("mm", stringList.get(6));
}
}
But in maven project, You should add the following dependency for download junit.jar file
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>${junit.version}</version>
<scope>test</scope>
</dependency>
This is small Testing Example...................................
import java.util.ArrayList;
import java.util.List;
public class StringConverter {
/*if input is String List, you can get Comma seperated String by using this method*/
public String convertToString(List<String> stringList) {
StringBuilder concatanatedString = new StringBuilder();
for(String string : stringList) {
concatanatedString.append(string);
concatanatedString.append(",");
}
String commaSeperatedString;
try{
commaSeperatedString = concatanatedString.toString().substring(0,
concatanatedString.toString().length() - 1);
}catch (Exception e){
commaSeperatedString ="";
}
return commaSeperatedString;
}
/*if input is comma seperated string, you can get String List by using this method*/
public List<String> convertToSet(String commaSeperatedList) {
String[] StringArray = commaSeperatedList.split(",");
List<String> stringList = new ArrayList<String>();
for (int i = 0; i < StringArray.length ;i++){
stringList.add(StringArray[i].trim());
}
return stringList;
}
}
This unit Testing class for StringConverter......................
@BeforeClass ------------------> Setup all variable
@Test---------------------------> run test method.............
import org.testng.annotations.AfterClass;
import org.testng.annotations.BeforeClass;
import org.testng.annotations.Test;
import org.testng.Assert;
import java.util.ArrayList;
import java.util.HashSet;
import java.util.List;
public class StringConverterTest {
private StringConverter converter;
private List<String> List1;
private String stringComma;
@BeforeClass
public void setup() {
converter = new StringConverter();
List1 = new ArrayList<String>();
List1.add("st1");
List1.add("st2");
List1.add("st3");
List1.add("st4");
List1.add("st5");
List1.add("st6");
stringComma = "aa,bb,pp,dd,ee,ff,mm";
}
@AfterClass
public void tearDown() {
}
@Test
public void testConvertToStringSuccess() {
String out = converter.convertToString(List1);
Assert.assertEquals("st1,st2,st3,st4,st5,st6", out);
}
@Test
public void testConvertToListSuccess() {
List<String> stringList = converter.convertToSet(stringComma);
Assert.assertEquals("aa", stringList.get(0));
Assert.assertEquals("pp", stringList.get(2));
Assert.assertEquals("ee", stringList.get(4));
Assert.assertEquals("mm", stringList.get(6));
}
}
If you want to run single test you can use following command
mvn clean -Dtestcase=<testcase-class-name> test:single
If you want to run all test case, you can usemvn clean install Dileepa Sisila Chandrasekera
Computer Science & Engineering
University of Moratuwa
Trainee at hsenid mobile solution (pvt) Ltd.
