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YuCheng Hu
2024-04-30 12:21:36 -04:00
parent a4683ce0d6
commit c18eb6d2ed
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persistence-modules/spring-data-mongodb-reactive/README.md
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## Spring Data Reactive Project
This module contains articles about reactive Spring 5 Data
### The Course
The "REST With Spring" Classes: http://bit.ly/restwithspring
### Relevant Articles
- [Spring Data Reactive Repositories with MongoDB](https://www.baeldung.com/spring-data-mongodb-reactive)
- [Spring Data MongoDB Tailable Cursors](https://www.baeldung.com/spring-data-mongodb-tailable-cursors)
persistence-modules/spring-data-mongodb-reactive/pom.xml
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<?xml version="1.0" encoding="UTF-8"?>
<project xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns="http://maven.apache.org/POM/4.0.0"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<artifactId>spring-data-mongodb-reactive</artifactId>
<name>spring-data-mongodb-reactive</name>
<packaging>jar</packaging>
<parent>
<groupId>com.baeldung</groupId>
<artifactId>parent-boot-2</artifactId>
<version>0.0.1-SNAPSHOT</version>
<relativePath>../../parent-boot-2</relativePath>
</parent>
<dependencies>
<dependency>
<groupId>io.projectreactor</groupId>
<artifactId>reactor-core</artifactId>
<version>${reactor-core.version}</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-mongodb-reactive</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-mongodb</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
</dependency>
<dependency>
<groupId>io.projectreactor</groupId>
<artifactId>reactor-test</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>io.reactivex.rxjava2</groupId>
<artifactId>rxjava</artifactId>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-test</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>de.flapdoodle.embed</groupId>
<artifactId>de.flapdoodle.embed.mongo</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-webflux</artifactId>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-tx</artifactId>
<version>${spring-tx.version}</version>
</dependency>
<dependency>
<groupId>com.h2database</groupId>
<artifactId>h2</artifactId>
</dependency>
<dependency>
<groupId>org.apache.httpcomponents</groupId>
<artifactId>httpclient</artifactId>
<version>${httpclient.version}</version>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<configuration>
<source>${java.version}</source>
<target>${java.version}</target>
</configuration>
<executions>
<!-- Replacing default-compile as it is treated specially by maven -->
<execution>
<id>default-compile</id>
<phase>none</phase>
</execution>
<!-- Replacing default-testCompile as it is treated specially by maven -->
<execution>
<id>default-testCompile</id>
<phase>none</phase>
</execution>
<execution>
<id>java-compile</id>
<phase>compile</phase>
<goals>
<goal>compile</goal>
</goals>
</execution>
<execution>
<id>java-test-compile</id>
<phase>test-compile</phase>
<goals>
<goal>testCompile</goal>
</goals>
</execution>
</executions>
</plugin>
</plugins>
</build>
<properties>
<spring-tx.version>5.3.15</spring-tx.version>
<httpclient.version>4.5.2</httpclient.version>
<reactor-core.version>3.3.1.RELEASE</reactor-core.version>
</properties>
</project>
persistence-modules/spring-data-mongodb-reactive/src/test/java/com/baeldung/SpringContextTest.java
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package com.baeldung;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.test.context.junit4.SpringRunner;
import com.baeldung.reactive.Spring5ReactiveApplication;
@RunWith(SpringRunner.class)
@SpringBootTest(classes = Spring5ReactiveApplication.class)
public class SpringContextTest {
@Test
public void whenSpringContextIsBootstrapped_thenNoExceptions() {
}
}
persistence-modules/spring-data-mongodb-reactive/src/test/resources/application.properties
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spring.mongodb.embedded.version=4.4.9
testing-modules/.project
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<?xml version="1.0" encoding="UTF-8"?>
<projectDescription>
<name>testing-modules</name>
<comment></comment>
<projects>
</projects>
<buildSpec>
<buildCommand>
<name>org.eclipse.m2e.core.maven2Builder</name>
<arguments>
</arguments>
</buildCommand>
</buildSpec>
<natures>
<nature>org.eclipse.m2e.core.maven2Nature</nature>
</natures>
</projectDescription>
testing-modules/.settings/org.eclipse.core.resources.prefs
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eclipse.preferences.version=1
encoding/<project>=UTF-8
testing-modules/assertion-libraries/.classpath
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<?xml version="1.0" encoding="UTF-8"?>
<classpath>
<classpathentry kind="src" output="target/classes" path="src/main/java">
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<attribute name="m2e-apt" value="true"/>
<attribute name="test" value="true"/>
</attributes>
</classpathentry>
<classpathentry kind="output" path="target/classes"/>
</classpath>
testing-modules/assertion-libraries/.project
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<?xml version="1.0" encoding="UTF-8"?>
<projectDescription>
<name>assertion-libraries</name>
<comment></comment>
<projects>
</projects>
<buildSpec>
<buildCommand>
<name>org.eclipse.jdt.core.javabuilder</name>
<arguments>
</arguments>
</buildCommand>
<buildCommand>
<name>org.eclipse.m2e.core.maven2Builder</name>
<arguments>
</arguments>
</buildCommand>
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<natures>
<nature>org.eclipse.jdt.core.javanature</nature>
<nature>org.eclipse.m2e.core.maven2Nature</nature>
</natures>
</projectDescription>
testing-modules/assertion-libraries/.settings/org.eclipse.core.resources.prefs
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eclipse.preferences.version=1
encoding//src/main/java=UTF-8
encoding//src/test/java=UTF-8
encoding/<project>=UTF-8
testing-modules/assertion-libraries/.settings/org.eclipse.jdt.apt.core.prefs
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eclipse.preferences.version=1
org.eclipse.jdt.apt.aptEnabled=false
testing-modules/assertion-libraries/.settings/org.eclipse.jdt.core.prefs
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eclipse.preferences.version=1
org.eclipse.jdt.core.compiler.codegen.targetPlatform=11
org.eclipse.jdt.core.compiler.compliance=11
org.eclipse.jdt.core.compiler.problem.enablePreviewFeatures=disabled
org.eclipse.jdt.core.compiler.problem.forbiddenReference=warning
org.eclipse.jdt.core.compiler.problem.reportPreviewFeatures=ignore
org.eclipse.jdt.core.compiler.processAnnotations=disabled
org.eclipse.jdt.core.compiler.release=enabled
org.eclipse.jdt.core.compiler.source=11
testing-modules/junit-5-basics/.classpath
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<?xml version="1.0" encoding="UTF-8"?>
<classpath>
<classpathentry kind="src" output="target/classes" path="src/main/java">
<attributes>
<attribute name="optional" value="true"/>
<attribute name="maven.pomderived" value="true"/>
</attributes>
</classpathentry>
<classpathentry excluding="**" kind="src" output="target/test-classes" path="src/test/resources">
<attributes>
<attribute name="maven.pomderived" value="true"/>
<attribute name="test" value="true"/>
<attribute name="optional" value="true"/>
</attributes>
</classpathentry>
<classpathentry excluding="**" kind="src" output="target/classes" path="src/main/resources">
<attributes>
<attribute name="maven.pomderived" value="true"/>
<attribute name="optional" value="true"/>
</attributes>
</classpathentry>
<classpathentry kind="src" output="target/test-classes" path="src/test/java">
<attributes>
<attribute name="optional" value="true"/>
<attribute name="maven.pomderived" value="true"/>
<attribute name="test" value="true"/>
</attributes>
</classpathentry>
<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-11">
<attributes>
<attribute name="maven.pomderived" value="true"/>
</attributes>
</classpathentry>
<classpathentry kind="con" path="org.eclipse.m2e.MAVEN2_CLASSPATH_CONTAINER">
<attributes>
<attribute name="maven.pomderived" value="true"/>
</attributes>
</classpathentry>
<classpathentry kind="src" path="target/generated-sources/annotations">
<attributes>
<attribute name="optional" value="true"/>
<attribute name="maven.pomderived" value="true"/>
<attribute name="ignore_optional_problems" value="true"/>
<attribute name="m2e-apt" value="true"/>
</attributes>
</classpathentry>
<classpathentry kind="src" output="target/test-classes" path="target/generated-test-sources/test-annotations">
<attributes>
<attribute name="optional" value="true"/>
<attribute name="maven.pomderived" value="true"/>
<attribute name="ignore_optional_problems" value="true"/>
<attribute name="m2e-apt" value="true"/>
<attribute name="test" value="true"/>
</attributes>
</classpathentry>
<classpathentry kind="output" path="target/classes"/>
</classpath>
testing-modules/junit-5-basics/.project
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<?xml version="1.0" encoding="UTF-8"?>
<projectDescription>
<name>junit-5-basics</name>
<comment></comment>
<projects>
</projects>
<buildSpec>
<buildCommand>
<name>org.eclipse.jdt.core.javabuilder</name>
<arguments>
</arguments>
</buildCommand>
<buildCommand>
<name>org.eclipse.m2e.core.maven2Builder</name>
<arguments>
</arguments>
</buildCommand>
</buildSpec>
<natures>
<nature>org.eclipse.jdt.core.javanature</nature>
<nature>org.eclipse.m2e.core.maven2Nature</nature>
</natures>
</projectDescription>
testing-modules/junit-5-basics/.settings/org.eclipse.core.resources.prefs
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eclipse.preferences.version=1
encoding//src/main/java=UTF-8
encoding//src/main/resources=UTF-8
encoding//src/test/java=UTF-8
encoding//src/test/resources=UTF-8
encoding/<project>=UTF-8
testing-modules/junit-5-basics/.settings/org.eclipse.jdt.apt.core.prefs
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eclipse.preferences.version=1
org.eclipse.jdt.apt.aptEnabled=false
testing-modules/junit-5-basics/.settings/org.eclipse.jdt.core.prefs
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eclipse.preferences.version=1
org.eclipse.jdt.core.compiler.codegen.targetPlatform=11
org.eclipse.jdt.core.compiler.compliance=11
org.eclipse.jdt.core.compiler.problem.enablePreviewFeatures=disabled
org.eclipse.jdt.core.compiler.problem.forbiddenReference=warning
org.eclipse.jdt.core.compiler.problem.reportPreviewFeatures=ignore
org.eclipse.jdt.core.compiler.processAnnotations=disabled
org.eclipse.jdt.core.compiler.release=enabled
org.eclipse.jdt.core.compiler.source=11
testing-modules/mockito-2/src/main/java/com/baeldung/constructor/PaymentProcessor.java
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package com.baeldung.constructor;
public class PaymentProcessor {
private final PaymentService paymentService;
public PaymentProcessor(PaymentService paymentService) {
this.paymentService = paymentService;
}
public PaymentProcessor() {
this.paymentService = new PaymentService();
}
public PaymentProcessor(String paymentMode) {
this.paymentService = new PaymentService(paymentMode);
}
public String processPayment(){
return paymentService.processPayment();
}
}
testing-modules/mockito-2/src/main/java/com/baeldung/constructor/PaymentService.java
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package com.baeldung.constructor;
public class PaymentService {
private final String paymentMode;
public PaymentService(String paymentMode) {
this.paymentMode = paymentMode;
}
public PaymentService() {
this.paymentMode = "Cash";
}
public String processPayment(){
// simulate processing payment and returns the payment mode
return this.paymentMode;
}
}
testing-modules/mockito-2/src/main/java/com/baeldung/nullmatcher/Helper.java
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package com.baeldung.nullmatcher;
class Helper {
String concat(String a, String b) {
return a + b;
}
}
testing-modules/mockito-2/src/main/java/com/baeldung/nullmatcher/Main.java
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package com.baeldung.nullmatcher;
class Main {
Helper helper = new Helper();
String methodUnderTest() {
return helper.concat("Baeldung", null);
}
}
testing-modules/mockito-2/src/main/java/com/baeldung/onemethodmultipleparams/ExampleService.java
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package com.baeldung.onemethodmultipleparams;
public class ExampleService {
public int getValue(int arg) {
return 1;
}
}
testing-modules/mockito-2/src/main/java/com/baeldung/singleton/CacheManager.java
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package com.baeldung.singleton;
import java.util.HashMap;
public class CacheManager {
private final HashMap<String, Object> map;
private static CacheManager instance;
private CacheManager() {
map = new HashMap<>();
}
public static CacheManager getInstance() {
if(instance == null) {
instance = new CacheManager();
}
return instance;
}
public <T> T getValue(String key, Class<T> clazz) {
return clazz.cast(map.get(key));
}
public Object setValue(String key, Object value) {
return map.put(key, value);
}
}
testing-modules/mockito-2/src/main/java/com/baeldung/singleton/Product.java
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package com.baeldung.singleton;
public class Product {
private String name;
private String description;
public Product(String name, String description) {
this.name = name;
this.description = description;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getDescription() {
return description;
}
public void setDescription(String description) {
this.description = description;
}
}
testing-modules/mockito-2/src/main/java/com/baeldung/singleton/ProductDAO.java
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package com.baeldung.singleton;
public class ProductDAO {
public Product getProduct(String productName) {
return new Product(productName, "description");
}
}
testing-modules/mockito-2/src/main/java/com/baeldung/singleton/ProductService.java
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package com.baeldung.singleton;
public class ProductService {
private final ProductDAO productDAO;
private final CacheManager cacheManager;
public ProductService(ProductDAO productDAO) {
this.productDAO = productDAO;
this.cacheManager = CacheManager.getInstance();
}
public ProductService(ProductDAO productDAO, CacheManager cacheManager) {
this.productDAO = productDAO;
this.cacheManager = cacheManager;
}
public Product getProduct(String productName) {
Product product = cacheManager.getValue(productName, Product.class);
if (product == null) {
product = productDAO.getProduct(productName);
}
return product;
}
}
testing-modules/mockito-2/src/main/java/com/baeldung/wantedbutnotinvocked/Helper.java
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package com.baeldung.wantedbutnotinvocked;
class Helper {
String getBaeldungString() {
return "Baeldung";
}
}
testing-modules/mockito-2/src/main/java/com/baeldung/wantedbutnotinvocked/Main.java
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package com.baeldung.wantedbutnotinvocked;
class Main {
Helper helper = new Helper();
String methodUnderTest(int i) {
if (i > 5) {
return helper.getBaeldungString();
}
return "Hello";
}
}
testing-modules/mockito-2/src/test/java/com/baeldung/constructor/PaymentServiceUnitTest.java
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package com.baeldung.constructor;
import static org.mockito.Mockito.when;
import org.junit.jupiter.api.Assertions;
import org.junit.jupiter.api.Test;
import org.mockito.MockedConstruction;
import org.mockito.Mockito;
class PaymentServiceUnitTest {
@Test
void whenConstructorInvokedWithInitializer_ThenMockObjectShouldBeCreated(){
try(MockedConstruction<PaymentService> mockPaymentService = Mockito.mockConstruction(PaymentService.class,(mock,context)-> when(mock.processPayment()).thenReturn("Credit"))){
PaymentProcessor paymentProcessor = new PaymentProcessor();
Assertions.assertEquals(1,mockPaymentService.constructed().size());
Assertions.assertEquals("Credit", paymentProcessor.processPayment());
}
}
@Test
void whenConstructorInvokedWithoutInitializer_ThenMockObjectShouldBeCreatedWithNullFields(){
try(MockedConstruction<PaymentService> mockPaymentService = Mockito.mockConstruction(PaymentService.class)){
PaymentProcessor paymentProcessor = new PaymentProcessor();
Assertions.assertEquals(1,mockPaymentService.constructed().size());
Assertions.assertNull(paymentProcessor.processPayment());
}
}
@Test
void whenConstructorInvokedWithParameters_ThenMockObjectShouldBeCreated(){
try(MockedConstruction<PaymentService> mockPaymentService = Mockito.mockConstruction(PaymentService.class,(mock, context) -> when(mock.processPayment()).thenReturn("Credit"))){
PaymentProcessor paymentProcessor = new PaymentProcessor("Debit");
Assertions.assertEquals(1,mockPaymentService.constructed().size());
Assertions.assertEquals("Credit", paymentProcessor.processPayment());
}
}
@Test
void whenMultipleConstructorsInvoked_ThenMultipleMockObjectsShouldBeCreated(){
try(MockedConstruction<PaymentService> mockPaymentService = Mockito.mockConstruction(PaymentService.class)){
PaymentProcessor paymentProcessor = new PaymentProcessor();
PaymentProcessor secondPaymentProcessor = new PaymentProcessor();
PaymentProcessor thirdPaymentProcessor = new PaymentProcessor("Debit");
when(mockPaymentService.constructed().get(0).processPayment()).thenReturn("Credit");
when(mockPaymentService.constructed().get(1).processPayment()).thenReturn("Online Banking");
Assertions.assertEquals(3,mockPaymentService.constructed().size());
Assertions.assertEquals("Credit", paymentProcessor.processPayment());
Assertions.assertEquals("Online Banking", secondPaymentProcessor.processPayment());
Assertions.assertNull(thirdPaymentProcessor.processPayment());
}
}
@Test
void whenDependencyInjectionIsUsed_ThenMockObjectShouldBeCreated(){
PaymentService mockPaymentService = Mockito.mock(PaymentService.class);
PaymentProcessor paymentProcessor = new PaymentProcessor(mockPaymentService);
when(mockPaymentService.processPayment()).thenReturn("Online Banking");
Assertions.assertEquals("Online Banking", paymentProcessor.processPayment());
}
}
testing-modules/mockito-2/src/test/java/com/baeldung/nullmatcher/MainUnitTest.java
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package com.baeldung.nullmatcher;
import static org.mockito.ArgumentMatchers.any;
import static org.mockito.ArgumentMatchers.isNull;
import org.junit.jupiter.api.BeforeEach;
import org.junit.jupiter.api.Test;
import org.mockito.InjectMocks;
import org.mockito.Mock;
import org.mockito.Mockito;
import org.mockito.MockitoAnnotations;
class MainUnitTest {
@Mock
Helper helper;
@InjectMocks
Main main;
@BeforeEach
void openMocks() {
MockitoAnnotations.openMocks(this);
}
@Test
void whenMethodUnderTest_thenSecondParameterNull() {
main.methodUnderTest();
Mockito.verify(helper)
.concat("Baeldung", null);
}
@Test
void whenMethodUnderTest_thenSecondParameterNullWithMatchers() {
main.methodUnderTest();
Mockito.verify(helper)
.concat(any(), isNull());
}
}
testing-modules/mockito-2/src/test/java/com/baeldung/onemethodmultipleparams/OneMethodMultipleParamsUnitTest.java
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package com.baeldung.onemethodmultipleparams;
import static org.junit.Assert.assertEquals;
import static org.mockito.ArgumentMatchers.anyInt;
import static org.mockito.Mockito.when;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.mockito.Mock;
import org.mockito.junit.MockitoJUnitRunner;
@RunWith(MockitoJUnitRunner.class)
public class OneMethodMultipleParamsUnitTest {
@Mock
ExampleService exampleService;
@Test
public void givenAMethod_whenStubbingForMultipleArguments_thenExpectDifferentResults() {
when(exampleService.getValue(10)).thenReturn(100);
when(exampleService.getValue(20)).thenReturn(200);
when(exampleService.getValue(30)).thenReturn(300);
assertEquals(100, exampleService.getValue(10));
assertEquals(200, exampleService.getValue(20));
assertEquals(300, exampleService.getValue(30));
}
@Test
public void givenAMethod_whenUsingThenAnswer_thenExpectDifferentReults() {
when(exampleService.getValue(anyInt())).thenAnswer(invocation -> {
int argument = (int) invocation.getArguments()[0];
int result;
switch (argument) {
case 25:
result = 125;
break;
case 50:
result = 150;
break;
case 75:
result = 175;
break;
default:
result = 0;
}
return result;
});
assertEquals(125, exampleService.getValue(25));
assertEquals(150, exampleService.getValue(50));
assertEquals(175, exampleService.getValue(75));
}
@Test
public void givenAMethod_whenUsingConsecutiveStubbing_thenExpectResultsInOrder() {
when(exampleService.getValue(anyInt())).thenReturn(9, 18, 27);
assertEquals(9, exampleService.getValue(1));
assertEquals(18, exampleService.getValue(1));
assertEquals(27, exampleService.getValue(1));
assertEquals(27, exampleService.getValue(1));
}
}

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