NotAMockException in Junit5 - mockito

I am facing a problem in my test after migrating to junit5. It says that parameter of verifyZeroInteractions is not mock object but actually it is a mock object. I receive NotAMockException.
I cannot understand why I am getting it although it is a mock object.
My test:
#BeforeEach
public void setup() {
mockObject = mock(MyObject.class);
controller = new MyController(mockObject);
}
#Test
public void myTest() {
assertThrows(RuntimeException.class, () -> controller.search(searchRequest));
verifyZeroInteractions(mockObject);
}

Related

How to use the mock object of the test class and call main method from the test class

In the test class trying to test the main method and not sure how to use the mock object here.
How to use the mock object orders to call the main method and it's methods inside the main method
Any suggestions on how this can be done?
public class Orders {
public static void main(String[] s) {
Orders jp = new Orders();
jp.method1();
List<OrderItems> lstOrdItms = jp.getListOrderItems();
jp.processOrderItems( lstOrdItms );
}
public void method1(List<OrderItem> lstOrderItem) {
.........
}
public List<OrderItem> getListOrderItems() {
............
}
public void processOrderItems() {
............
}
}
public class OrdersTest {
#Mocks
Orders orders;
.....
#Before
public void setUp() {
........
}
#Test
public void testMain() throws SQLException {
// Not sure how to test here
// This will actually execute the main method instead of mock.
orders.main(new String[]{});
}
}

how to convert return type of method within when().thenReturn method of Mockito

Below is my code snippet. This is giving me compilation error, as env.getProperty will return String. How do I get integer value. Interger.ParseInt is not working.
when(this.env.getProperty("NeededIntegerValue")).thenReturn(15);
Below is my test class
public class MyclassTest {
Myclass myObj=new Myclass();
#Mock Environment env=Mockito.mock(Environment.class);
#Before
public void init() {
when(this.env.getProperty("StringKey1")).thenReturn("Stringvalue");
when(this.env.getProperty("StringKey2")).thenReturn(intValue);
myObj.setEnvironment(this.env);
}
#Test
public void testTenantIdentifierCutomerTypeCUSTOMER_ACCOUNT() {
assertEquals("Expecteddata",myObj.testMethod(new StringBuilder(inputData),anotherData).toString);
}
}
Below is the Method needs to be tested
public StringBuilder testMethod(StringBuilder inputData, String anotherData)
{
if (anotherData.equals(env.getProperty("StringKey1"))) {
inputData=inputData.append(","+arrayOfInputData[Integer.parseInt(env.getProperty("intValue"))]);
}
}
First, you should mock your env, this way:
when(this.env.getProperty("StringKey1")).thenReturn("StringValue");
when(this.env.getProperty("StringKey2")).thenReturn("StringRepresentationOfYourInt");
Second, pay attention to the method itself, should be
arrayOfInputData[Integer.parseInt(env.getProperty("StringKey2"))
not
arrayOfInputData[Integer.parseInt(env.getProperty("intValue"))
Instead of
myObj.setEnvironment(this.env); in init() method try:
#InjectMocks
Myclass myObj = new Myclass();
Also remove assignment for
#Mock Environment env=Mockito.mock(Environment.class);
it should look
#Mock Environment env;

How to use PowerMock invoke private method and get return value?

I use PowerMockito mock a class instance that contains private method. And I want to verify private method return value is correct, So how to use PowerMock invoke private method and get return value?
This is demo:
class Demo {
public publicMethod1ReturnClass publicMethod1() {
// do something...
}
private privateMethod1ReturnClass privateMethod1() {
// do something
}
}
#RunWith(PowerMockRunner.class)
#PrepareForTest(Demo.class)
class DemoTest {
#Test
public void test() throws Exception {
Demo demo = PowerMockito.spy(new Demo());
privateMethod1ReturnClass result = demo.privateMethod1();
}
}
You can do it using Whitebox like this,
privateMethod1ReturnClass s = Whitebox.invokeMethod(demo, "privateMethod1");
assertEquals(s, "yourExpectedResult");

Mock a decorated Stream using PowerMockito

So I have a class which takes an OutputStream in the constructor and creates a PrintWriter from it inside a method. Question is how do I get this PrintWriter to verify it?
Example public Class(OutputStream output) {}
public void foo() {
PrintWriter writer = new PrintWriter(output);
}
What I try to do is:
PrintWriter writer = PowerMockito.mock(PrintWriter.class)
PowerMockito
.whenNew(PrintWriter.class)
.withArguments(output)
.thenReturn(writer);
However I get that there are no interractions with this writer. Any help would be appreciated.
It will be better if you provided full code snippet with PowerMock configuration. Then I could help you and give advise, now I may only guess what could be wrong, but I'm trying:
The PrintWriterhas several constructors which could accept OutputStreamand PowerMock have a defect that it could incorrect guess which constructor is mocked, when you pass only arguments when a class had overloaded constructors.
Also it could be common mistake, you haven't added the class which create an instance of PrintWriter to #PrepareForTest.
So, worked example in base on my assumption case:
public class PrintWriterCreator {
private final PrintWriter printWriter;
public PrintWriterCreator(OutputStream outputStream) {
this.printWriter = new PrintWriter(outputStream);
}
public void write(String message){
printWriter.write(message);
}
}
Test class:
#RunWith(PowerMockRunner.class)
#PrepareForTest({PrintWriter.class, PrintWriterCreator.class})
public class PrintWriterCreatorTest {
#Mock
private OutputStream outputStream;
#Mock
private PrintWriter printWriterMock;
private PrintWriterCreator printWriterCreator;
#Before
public void setUp() throws Exception {
whenNew(PrintWriter.class).withParameterTypes(OutputStream.class).withArguments(eq(outputStream)).thenReturn
(printWriterMock);
printWriterCreator = new PrintWriterCreator(outputStream);
}
#Test
public void testWrite() throws Exception {
String message = "someMessage";
printWriterCreator.write(message);
verifyNew(PrintWriter.class).withArguments(outputStream);
verify(printWriterMock).write(eq(message));
}
}

LinkedHashMap issue... Anyone help me out

While executing this test case, following error I'm facing...
Please anyone suggests me in overcoming this issue.
AbortedJobImportTest
testAbortedJobAddedSuccessfullyToExcludedRun
Unknown entity: java.util.LinkedHashMap
org.hibernate.MappingException: Unknown entity: java.util.LinkedHashMap
at com.rsa.test.crawler.CrawlerTestBase.setUp(CrawlerTestBase.groovy:42)
at com.rsa.test.crawler.AbortedJobImportTest.setUp(AbortedJobImportTest.groovy:19)
/*
***
CrawlerTestBase
public class CrawlerTestBase extends GroovyTestCase {
static transactional = false;
def productsModel;
protected JenkinsJobCrawlerDTO jenkinsCrawlerDTO;
def jenkinsJobService;
def httpClientService;
def sessionFactory;
def productModelsService;
protected String JENKINS_URL = "http://10.101.43.253:8080/jenkins/";
protected String JENKINS_JOB_CONSTANT= "job";
protected String JUNIT_TEST_PARAMETERS = "type=junit";
protected String CUSTOM_JUNIT_SELENIUM_TEST_PARAMETERS = "type=selenium,outputfile=Custom-junit-report*";
protected String DEFAULT_PRODUCT = "AM";
public void setUp(){
deleteDataFromTables();
Date date = new Date();
productsModel = new ProductModel(product:DEFAULT_PRODUCT,jenkinsServers:"10.101.43.253",date:date);
if (productsModel.validate()) {
productsModel.save(flush:true);
log.info("Added entry for prodct model for "+DEFAULT_PRODUCT);
}
else {
productsModel.errors.allErrors.each { log.error it }
}
jenkinsCrawlerDTO = new JenkinsJobCrawlerDTO();
productModelsService.reinitialise();
sessionFactory.currentSession.save(flush:true);
sessionFactory.currentSession.clear();
}
public void tearDown(){
deleteDataFromTables();
}
protected void deleteDataFromTables(){
Set<String> tablesToDeleteData = new HashSet<String>();
tablesToDeleteData.add("ExcludedJenkinsRuns");
tablesToDeleteData.add("TestRuns");
tablesToDeleteData.add("ProductModel");
tablesToDeleteData.add("SystemEvents");
tablesToDeleteData.add("JenkinsJobsToCrawl");
tablesToDeleteData.add("TestSuitesInViewList");
tablesToDeleteData.add("JenkinsJobsToCrawl");
(ApplicationHolder.application.getArtefacts("Domain") as List).each {
if(tablesToDeleteData.contains(it.getName())){
log.info("Deleting data from ${it.getName()}");
it.newInstance().list()*.delete()
}
}
sessionFactory.currentSession.flush();
sessionFactory.currentSession.clear();
}
public void oneTimeSetUp(){
}
public void oneTimeTearDown(){
}
}
AbortedJobImportTest
public class AbortedJobImportTest extends CrawlerTestBase {
private String jobUrl = JENKINS_URL+JENKINS_JOB_CONSTANT+"/am-java-source-build/69/";
#Before
public void setUp() {
super.setUp();
jenkinsCrawlerDTO.setJobUrl(jobUrl);
}
#After
public void cleanup() {
super.tearDown();
}
#Test
public void testAbortedJobAddedSuccessfullyToExcludedRun() {
int countBeforeImport = ExcludedJenkinsRuns.count();
jenkinsJobService.handleTestResults(jobUrl,JUNIT_TEST_PARAMETERS);
int countAfterImport = ExcludedJenkinsRuns.count();
Assert.assertEquals(countBeforeImport+1, countAfterImport);
ExcludedJenkinsRuns excludedRun = ExcludedJenkinsRuns.findByJobNameLike(jenkinsCrawlerDTO.jobName);
Assert.assertNotNull(excludedRun);
Assert.assertEquals(jobUrl, excludedRun.jobUrl);
Assert.assertEquals(jenkinsCrawlerDTO.jobName, excludedRun.jobName);
Assert.assertEquals(jenkinsCrawlerDTO.jenkinsServer, excludedRun.jenkinsServer);
Assert.assertEquals(jenkinsCrawlerDTO.buildNumber.toInteger(), excludedRun.buildNumber);
Assert.assertEquals("Build Aborted", excludedRun.exclusionReason);
}
}
*/
I cant figure out the issue in this code. Can anyone help me?
While executing this test case, following error I'm facing...
Please anyone suggests me in overcoming this issue.
It means that you try to put a LinkedHashMap in constructor of Product Model but there is no constructor with LinkedHashMap parameter.
I guess the problem is your Unit Test. The Model constructor will be added by grails framework. You aren`t running grails framework in your Unit Test, because you use GroovyTestCase instead of Spock.
Lock here https://grails.github.io/grails-doc/3.0.5/guide/single.html#unitTesting

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