Table of Contents
Intermediate Assessment on JUnit
1.In JUnit 4, all core classes reside in org.junit package.
1) False
2) True
Correct Answer of above question is:
Answer: 2)True
2.Which of the following is not an optional parameter defined for the @Test annotation?
1) None of the options
2) timeout
3) expected
4) threadcount
Correct Answer of above question is:
Answer: 4)threadcount
3.Which of the following annotation causes that method run after each test methods?
1) @test
2) @BeforeAll
3) @AfterAll
4) @AfterEach
Correct Answer of above question is:
Answer: 4)@AfterEach
Intermediate Assessment on JUnit
1.Which JUnit annotation allows you to define order of execution for the test methods?
1) @FixMethodOrder
2) @DefineOrder
3) @Rule
4) @Ignore
Correct Answer of above question is:
Answer: 1) @FixMethodOrder
2.Logical collection of test classes can be bundled together to form a __.
1) Fixture
2) Suite
3) Runner
4) Filter
Correct Answer of above question is:
Answer: 2)Suite
3.Test cases are executed with a fixed state of object which can be a baseline for running tests to ensure the results are repeatable, such object are called __.
1) Froster
2) Frontier
3) Fixture
4) StableSet
Correct Answer of above question is:
Answer: 3)Fixture
Quiz on Mockito
1.Mockito framework offers _ to compute on-the-fly results.
1) Stubbing
2) AdaptiveResponse
3) Setbacks
4) Callbacks
Correct Answer of above question is:
Answer: 4)Callbacks
2.Mockito can mock private methods.
1) True
2) False
Correct Answer of above question is:
Answer: 2)False
3.Mockito can throw an exception using which of the following?
1) when().thenReturn()
2) doWhen().thenThrow()
3) when().thenAnswer()
4) when().thenThrow()
Correct Answer of above question is:
Answer: 4)when().thenThrow()
Quiz on Mock MVC
1.Integration of JUnit and the Spring Test context framework is done by _ runner.
1) HierarchicalContextRunner
2) MockitoJUnitRunner
3) SpringJUnit4ClassRunner
4) Cucumber Runner
Correct Answer of above question is:
Answer: 3)SpringJUnit4ClassRunner
2._ forms the integral part of Spring Testing framework.
1) PowerMVC
2) PowerMock
3) MockMVC
4) Mockito
Correct Answer of above question is:
Answer: 3)MockMVC
3.MockMvc builder __ tests one controller at a time.
1) annotationConfigSetup
2) webAppContextSetup
3) standaloneSetup
4) xmlConfigSetup
Correct Answer of above question is:
Answer: 3)standaloneSetup
JaCoCo – Quiz
1.JaCoCo is an open source code coverage tool that generates coverage reports by instrumenting Java byte code.
1) True
2) False
Correct Answer of above question is:
Answer: 1) True
2.JaCoCo collects events from __ for performing code coverage analysis.
1) JVM TI
2) ASM
3) JDK
4) Java agent
Correct Answer of above question is:
Answer: 1) JVM TI
3.JaCoCo can be integrated with which Continuous Integration tools?
1) Jenkins
2) Travis
3) None of the options
4) Codeship Inc
Correct Answer of above question is:
Answer: 1) Jenkins
Quiz on FindBugs
1.FindBugs tool analyzes Java source code.
1) True
2) False
Correct Answer of above question is:
Answer: 2)False
2.Bugs ranking from Rank 1 to 4 are classified as __.
1) Troubling
2) Scariest
3) OfConcern
4) Scary
Correct Answer of above question is:
Answer: 2)Scariest
3.This comes under which category of a bug: “Using string concatenation in a loop rather than using a StringBuffer?”
1) Bad Practice
2) Dodgy code
3) All the options
4) Performance
Correct Answer of above question is:
Answer: 4)Performance
Final Assessment on Java8 Qualis Interview Questions & Answers
1.100% code coverage guarantees effective testing.
1) True
2) False
Correct Answer of above question is:
Answer: 2)False
2.Which among the following is a Java mocking framework?
PowerMock
1) All the options
2) Mockito
3) EasyMock
Correct Answer of above question is:
Answer: 2)All the options
3.JUnit can be integrated with build automation tools like Maven, Ant, Gradle etc.
1) False
2) True
Correct Answer of above question is:
Answer: 2)True
4.With the latest JUnit framework, each test class you write should be a sub-class of TestCase class.
1) False
2) True
Correct Answer of above question is:
Answer: 1) False
5.Checkstyle checks for
a. Naming conventions of methods.
b. Space between certain characters.
c. Line length and number of lines in method/class
d. Catching an exception without doing anything.
1) Options: a,c & d
2) Options: a, b & c
3) Options: b,c & d
4) Options: a,b & d
Correct Answer of above question is:
Answer: 2)Options: a, b & c
6.Which of the following ‘id’ is not a feature of JUnit?
1) Plagiarism
2) Fixtures
3) Test Runners
4) Assertion
Correct Answer of above question is:
Answer: 1) Plagiarism
7.Code coverage can be used for _.
1) White box testing
2) Black box testing
3) Bug fixing
4) None of the options
Correct Answer of above question is:
Answer: 1) White box testing
8.FindBugs is an open source static code analysis tool. True or False.
1) True
2) False
Correct Answer of above question is:
Answer: 1) True
9.Which among the following is not a JaCoCo-Maven integration goal?
1) JaCoCo:dump
2) JaCoCo:Prepare-agent
3) JaCoCo:report
4) JaCoCo:separate
Correct Answer of above question is:
Answer: 4)JaCoCo:separate
10.Which annotation helps you to disable a test method?
1) @Hide
2) @Ignore
3) @Test
4) @Disable
Correct Answer of above question is:
Answer: 4)@Disable
11.With Mockito, one can verify that a method has been called n times.
1) True
2) False
Correct Answer of above question is:
Answer: 1) True
12.Select the correct syntax for creating MockMvc instance for EmployeeController,java.
1) this.mockMvc = MockMvcBuilders.standaloneSetup();
2) this.mockMvc = MockMvcBuilders.standaloneSetup (employeeController).build();
3) this.mockMvc = MockMvcBuilders.standaloneSetup (employeeController);
4) this.mockMvc = MockMvcBuilders.standaloneSetup (employeeController).setup();
Correct Answer of above question is:
Answer: 2)this.mockMvc = MockMvcBuilders.standaloneSetup (employeeController).build();
13.@Captor annotation is used for creation of _.
1) ExceptiontCaptor
2) ResponseCaptor
3) ArgumentCaptor
4) MockCaptor
Correct Answer of above question is:
Answer: 3)ArgumentCaptor
14.FindBugs report – findbugs.html will be generated in the folder __ in the project directory with Maven integration.
1) target/test
2) target/bugs
3) target/site
4) target/findbugs
Correct Answer of above question is:
Answer: 3)target/site
15.Which of the following is a static method offered by MockMvcRequestBuilders class.
a. get
b. post
c. patch
d. delete
1) a,b & d
2) c&d
3) a&b
4) a,b,c &d
Correct Answer of above question is:
Answer: 4)a,b,c &d
16.Can FindBugs identify security holes related to SQL injections?
1) False
2) True
Correct Answer of above question is:
Answer: 2)True
17.Which annotation will set ApplicationContext for the test class with the configuration file from class path specified?
1) @ApplicationContext
2) @ClasspathConfiguration
3) @WebAppConfiguration
4) @ContextConfiguration
Correct Answer of above question is:
Answer: 4)@ContextConfiguration
18.MockMvc requests are executed by calling perform methods by passing _ as argument.
1) ResponseBuilder
2) ArguementBuilder
3) ResultBuilder
4) RequestBuilder
Correct Answer of above question is:
Answer: 4)RequestBuilder
19.Which of the following is a JUnit extension?
1) Postgres
2) Cactus
3) Litmus
4) Thymus
Correct Answer of above question is:
Answer: 2)Cactus
20.Assertion methods for test cases are included in which JUnit class?
1) Assertions
2) Assume
3) CoreMatchers
4) Test
Correct Answer of above question is:
Answer: 1) Assertions
Java8 Qualis Fresco Play Handson Solutions from 2022
Course Path: Microservices/Construction/Java8 Qualis
Suggestion: Just Copy whole code from below and replace with existing code on hackerrank.
- Welcome to Hands On – Junit
File Name – SolutionTest.java (under src->test folder)
package com.tcs.fresco;
import static junit. framework.Assert.*;
import java.util.HashMap;
import java.util.Map;
import org.junit.After;
import org.junit.Before;
import junit.framework.Test;
import junit.framework.TestCase;
import junit.framework.TestSuite;
public class SolutionTest extends TestCase{
Map<Integer, String> customerTag = null;
int custId = 0;
Solution solution = new Solution();
@Before
public void setUp() throws Exception {
custId = 10511;
customerTag = new HashMap<Integer, String>();
}
//Write your test cases here
public void test() {
assertTrue( true );
}
@org.junit.Test
public void testValidUser(){
solution.saveCustomer(this.custId, "Tej");
assertTrue(solution.isCustomerExist("Tej"));
}
@org.junit.Test
public void testinValidUser(){
solution.saveCustomer(this.custId, "Tej");
assertFalse(solution.isCustomerExist("Tej1"));
}
@After
public void tearDown() throws Exception {
customerTag.clear();
}}
2.Hands-on Mockito
File Name- UserAuthenticatorTest.java
package com.tcs.fresco;
/* Write static mocks for Assert and Mockito classes. -Q1 */
import static org.junit.Assert.*;
import static org.mockito.Mockito.doThrow;
//Write import statements for Mockito classes.
import static org.mockito.Mockito.mock;
import static org.mockito.Mockito.when;
import org.junit.Before;
import org.junit.BeforeClass;
import org.junit.Test;
public class UserAuthenticatorTest {
UserAuthenticator authenticator = new UserAuthenticator();
public static UserAuthenticatorInterface authenticatorMock;
@BeforeClass
public static void setUp() {
/* Create mock object using static mock configuration -Q2 */
//Write your code here
authenticatorMock = mock(UserAuthenticatorInterface.class);
}
@Before
public void setUpAuthenticator() {
authenticator.setUserAuthenticator(authenticatorMock);
}
/*Complete the test case with the expected exception -Q3 */
// Write your code here@Test(expected = FailedToAuthenticateException.class)
public void testAuthenticate_InvalidCredentials() throws FailedToAuthenticateException {
String username = "User1";
String password = "wrong password";
String errorMessage = "Invalid credentials .Authentication Failed";
/*Throw exception using doThrow...when configuration - Q4*/
// Write your code here
doThrow(new FailedToAuthenticateException(errorMessage)).when(authenticatorMock).authenticateUser("User1", "wrong password");
authenticator.authenticateUser(username, password);
}
@Test
public void testAuthenticate_ValidCredentials() throws FailedToAuthenticateException {
String username = "User1";
String password = "Password";
/*Configure Returning True with when...thenReturn configuration on mock Object - Q5*/
//Write your code here
when(authenticatorMock.authenticateUser(username, password)).thenReturn(true);
assertTrue(authenticator.authenticateUser(username, password));
}
@Test(expected=FailedToAuthenticateException.class)
public void testAuthenticate_EmptyCredentials() throws FailedToAuthenticateException {
String username = "";
String password = "";
String errorMessage= "Credentials cannot be empty";
/*Configure Throwing exception using when...thenThrow configuration on mock Object - Q6*/
//Write your code here
when(authenticatorMock.authenticateUser(username, password)).thenThrow(new FailedToAuthenticateException(errorMessage));
authenticator.authenticateUser(username, password);
authenticator.authenticateUser(username, password);
}
@Test()
public void dummytest(){
assertEquals(1,1);
}}
3.MockMvc: Hands-on
No need to write code just submit and it will clear.
4.Checkstyle: Hands-on
No need to write code just submit and it will clear.
5.FindBugs: Hands-on
No need to write code just submit and it will clear.
6.JaCoCo: Hands-on
No need to write code just submit and it will clear.
