This commit is contained in:
Loredana 2020-09-18 12:04:36 +03:00
commit 4a7cde7d32
52 changed files with 788 additions and 32 deletions

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@ -1,6 +1,8 @@
package com.baeldung.date;
import static org.junit.Assert.assertEquals;
import org.joda.time.Days;
import org.joda.time.Minutes;
import org.junit.Test;
import java.text.ParseException;
import java.text.SimpleDateFormat;
@ -16,7 +18,7 @@ import java.util.Locale;
import java.util.TimeZone;
import java.util.concurrent.TimeUnit;
import org.junit.Test;
import static org.junit.Assert.*;
public class DateDiffUnitTest {
@ -29,18 +31,39 @@ public class DateDiffUnitTest {
long diffInMillies = Math.abs(secondDate.getTime() - firstDate.getTime());
long diff = TimeUnit.DAYS.convert(diffInMillies, TimeUnit.MILLISECONDS);
assertEquals(diff, 6);
assertEquals(6, diff);
}
@Test
public void givenTwoDatesInJava8_whenDifferentiating_thenWeGetSix() {
LocalDate now = LocalDate.now();
LocalDate sixDaysBehind = now.minusDays(6);
public void givenTwoDatesInJava8_whenUsingPeriodGetDays_thenWorks() {
LocalDate aDate = LocalDate.of(2020, 9, 11);
LocalDate sixDaysBehind = aDate.minusDays(6);
Period period = Period.between(now, sixDaysBehind);
Period period = Period.between(aDate, sixDaysBehind);
int diff = Math.abs(period.getDays());
assertEquals(diff, 6);
assertEquals(6, diff);
}
@Test
public void givenTwoDatesInJava8_whenUsingPeriodGetDays_thenDoesNotWork() {
LocalDate aDate = LocalDate.of(2020, 9, 11);
LocalDate sixtyDaysBehind = aDate.minusDays(60);
Period period = Period.between(aDate, sixtyDaysBehind);
int diff = Math.abs(period.getDays());
//not equals
assertNotEquals(60, diff);
}
@Test
public void givenTwoDatesInJava8_whenUsingPeriod_thenWeGet0Year1Month29Days() {
LocalDate aDate = LocalDate.of(2020, 9, 11);
LocalDate sixtyDaysBehind = aDate.minusDays(60);
Period period = Period.between(aDate, sixtyDaysBehind);
int years = Math.abs(period.getYears());
int months = Math.abs(period.getMonths());
int days = Math.abs(period.getDays());
assertArrayEquals(new int[] { 0, 1, 29 }, new int[] { years, months, days });
}
@Test
@ -51,7 +74,7 @@ public class DateDiffUnitTest {
Duration duration = Duration.between(now, sixMinutesBehind);
long diff = Math.abs(duration.toMinutes());
assertEquals(diff, 6);
assertEquals(6, diff);
}
@Test
@ -61,7 +84,7 @@ public class DateDiffUnitTest {
long diff = ChronoUnit.SECONDS.between(now, tenSecondsLater);
assertEquals(diff, 10);
assertEquals(10, diff);
}
@Test
@ -69,9 +92,9 @@ public class DateDiffUnitTest {
LocalDateTime ldt = LocalDateTime.now();
ZonedDateTime now = ldt.atZone(ZoneId.of("America/Montreal"));
ZonedDateTime sixDaysBehind = now.withZoneSameInstant(ZoneId.of("Asia/Singapore"))
.minusDays(6);
.minusDays(6);
long diff = ChronoUnit.DAYS.between(sixDaysBehind, now);
assertEquals(diff, 6);
assertEquals(6, diff);
}
@Test
@ -81,7 +104,7 @@ public class DateDiffUnitTest {
long diff = now.until(tenSecondsLater, ChronoUnit.SECONDS);
assertEquals(diff, 10);
assertEquals(10, diff);
}
@Test
@ -89,10 +112,9 @@ public class DateDiffUnitTest {
org.joda.time.LocalDate now = org.joda.time.LocalDate.now();
org.joda.time.LocalDate sixDaysBehind = now.minusDays(6);
org.joda.time.Period period = new org.joda.time.Period(now, sixDaysBehind);
long diff = Math.abs(period.getDays());
long diff = Math.abs(Days.daysBetween(now, sixDaysBehind).getDays());
assertEquals(diff, 6);
assertEquals(6, diff);
}
@Test
@ -100,8 +122,9 @@ public class DateDiffUnitTest {
org.joda.time.LocalDateTime now = org.joda.time.LocalDateTime.now();
org.joda.time.LocalDateTime sixMinutesBehind = now.minusMinutes(6);
org.joda.time.Period period = new org.joda.time.Period(now, sixMinutesBehind);
long diff = Math.abs(period.getDays());
long diff = Math.abs(Minutes.minutesBetween(now, sixMinutesBehind).getMinutes());
assertEquals(6, diff);
}
@Test
@ -111,6 +134,6 @@ public class DateDiffUnitTest {
long diff = Math.abs(now.numDaysFrom(sixDaysBehind));
assertEquals(diff, 6);
assertEquals(6, diff);
}
}
}

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@ -1,16 +1,16 @@
<?xml version="1.0" encoding="UTF-8"?>
<hazelcast xsi:schemaLocation="http://www.hazelcast.com/schema/config hazelcast-config-3.7.xsd"
xmlns="http://www.hazelcast.com/schema/config"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<hazelcast xmlns="http://www.hazelcast.com/schema/config"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://www.hazelcast.com/schema/config
http://www.hazelcast.com/schema/config/hazelcast-config-4.0.xsd">
<network>
<port auto-increment="true" port-count="20">5701</port>
<join>
<multicast enabled="false">
</multicast>
<tcp-ip enabled="true">
<member>machine1</member>
<member>localhost</member>
</tcp-ip>
<multicast enabled="false"/>
<tcp-ip enabled="true">
<member>machine1</member>
<member>localhost</member>
</tcp-ip>
</join>
</network>
</hazelcast>

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@ -99,6 +99,8 @@
<artifactId>maven-surefire-plugin</artifactId>
<version>${surefire-plugin.version}</version>
<configuration>
<forkCount>1</forkCount>
<reuseForks>true</reuseForks>
<systemProperties>
<java.util.logging.manager>org.jboss.logmanager.LogManager</java.util.logging.manager>
</systemProperties>

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@ -32,6 +32,10 @@
<groupId>org.thymeleaf.extras</groupId>
<artifactId>thymeleaf-extras-springsecurity5</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-jersey</artifactId>
</dependency>
<!-- oauth2 -->
<dependency>
@ -63,7 +67,7 @@
<scope>test</scope>
</dependency>
</dependencies>
<properties>
<start-class>com.baeldung.oauth2.SpringOAuthApplication</start-class>
</properties>

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@ -0,0 +1,13 @@
package com.baeldung.jersey;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.context.annotation.PropertySource;
@SpringBootApplication
@PropertySource("classpath:jersey-application.properties")
public class JerseyApplication {
public static void main(String[] args) {
SpringApplication.run(JerseyApplication.class, args);
}
}

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@ -0,0 +1,30 @@
package com.baeldung.jersey;
import org.springframework.security.oauth2.client.authentication.OAuth2AuthenticationToken;
import org.springframework.security.oauth2.core.OAuth2AuthenticatedPrincipal;
import javax.ws.rs.GET;
import javax.ws.rs.Path;
import javax.ws.rs.Produces;
import javax.ws.rs.core.Context;
import javax.ws.rs.core.MediaType;
import javax.ws.rs.core.SecurityContext;
@Path("/")
public class JerseyResource {
@GET
@Path("login")
@Produces(MediaType.TEXT_HTML)
public String login() {
return "Log in with <a href=\"/oauth2/authorization/github\">GitHub</a>";
}
@GET
@Produces(MediaType.TEXT_PLAIN)
public String home(@Context SecurityContext securityContext) {
OAuth2AuthenticationToken authenticationToken = (OAuth2AuthenticationToken) securityContext.getUserPrincipal();
OAuth2AuthenticatedPrincipal authenticatedPrincipal = authenticationToken.getPrincipal();
String userName = authenticatedPrincipal.getAttribute("login");
return "Hello " + userName;
}
}

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@ -0,0 +1,11 @@
package com.baeldung.jersey;
import org.glassfish.jersey.server.ResourceConfig;
import org.springframework.stereotype.Component;
@Component
public class RestConfig extends ResourceConfig {
public RestConfig() {
register(JerseyResource.class);
}
}

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@ -0,0 +1,21 @@
package com.baeldung.jersey;
import org.springframework.context.annotation.Configuration;
import org.springframework.security.config.annotation.web.builders.HttpSecurity;
import org.springframework.security.config.annotation.web.configuration.WebSecurityConfigurerAdapter;
@Configuration
public class SecurityConfig extends WebSecurityConfigurerAdapter {
@Override
protected void configure(HttpSecurity http) throws Exception {
http
.authorizeRequests()
.antMatchers("/login")
.permitAll()
.anyRequest()
.authenticated()
.and()
.oauth2Login()
.loginPage("/login");
}
}

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@ -0,0 +1,3 @@
server.port=8083
spring.security.oauth2.client.registration.github.client-id=<your-client-id>
spring.security.oauth2.client.registration.github.client-secret=<your-client-secret>

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@ -0,0 +1,72 @@
package com.baeldung.jersey;
import org.junit.Before;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.boot.test.web.client.TestRestTemplate;
import org.springframework.boot.web.server.LocalServerPort;
import org.springframework.http.HttpStatus;
import org.springframework.http.ResponseEntity;
import org.springframework.test.context.TestPropertySource;
import org.springframework.test.context.junit4.SpringRunner;
import java.net.URI;
import static org.assertj.core.api.Assertions.assertThat;
import static org.springframework.boot.test.context.SpringBootTest.WebEnvironment.RANDOM_PORT;
import static org.springframework.http.MediaType.TEXT_HTML;
@RunWith(SpringRunner.class)
@SpringBootTest(webEnvironment = RANDOM_PORT)
@TestPropertySource(properties = "spring.security.oauth2.client.registration.github.client-id:test-id")
public class JerseyResourceUnitTest {
@Autowired
private TestRestTemplate restTemplate;
@LocalServerPort
private int port;
private String basePath;
@Before
public void setup() {
basePath = "http://localhost:" + port + "/";
}
@Test
public void whenUserIsUnauthenticated_thenTheyAreRedirectedToLoginPage() {
ResponseEntity<Object> response = restTemplate.getForEntity(basePath, Object.class);
assertThat(response.getStatusCode()).isEqualTo(HttpStatus.FOUND);
assertThat(response.getBody()).isNull();
URI redirectLocation = response.getHeaders().getLocation();
assertThat(redirectLocation).isNotNull();
assertThat(redirectLocation.toString()).isEqualTo(basePath + "login");
}
@Test
public void whenUserAttemptsToLogin_thenAuthorizationPathIsReturned() {
ResponseEntity<String> response = restTemplate.getForEntity(basePath + "login", String.class);
assertThat(response.getHeaders().getContentType()).isEqualTo(TEXT_HTML);
assertThat(response.getBody()).isEqualTo("Log in with <a href=\"/oauth2/authorization/github\">GitHub</a>");
}
@Test
public void whenUserAccessesAuthorizationEndpoint_thenTheyAresRedirectedToProvider() {
ResponseEntity<String> response = restTemplate.getForEntity(basePath + "oauth2/authorization/github", String.class);
assertThat(response.getStatusCode()).isEqualTo(HttpStatus.FOUND);
assertThat(response.getBody()).isNull();
URI redirectLocation = response.getHeaders().getLocation();
assertThat(redirectLocation).isNotNull();
assertThat(redirectLocation.getHost()).isEqualTo("github.com");
assertThat(redirectLocation.getPath()).isEqualTo("/login/oauth/authorize");
String redirectionQuery = redirectLocation.getQuery();
assertThat(redirectionQuery.contains("response_type=code"));
assertThat(redirectionQuery.contains("client_id=test-id"));
assertThat(redirectionQuery.contains("scope=read:user"));
}
}

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@ -0,0 +1,29 @@
package com.baeldung.inmemory;
import org.springframework.context.annotation.Configuration;
import org.springframework.security.config.annotation.authentication.builders.AuthenticationManagerBuilder;
import org.springframework.security.config.annotation.web.builders.HttpSecurity;
import org.springframework.security.config.annotation.web.configuration.WebSecurityConfigurerAdapter;
//@Configuration
public class InMemoryNoOpAuthWebSecurityConfigurer extends WebSecurityConfigurerAdapter {
@Override
protected void configure(AuthenticationManagerBuilder auth) throws Exception {
auth.inMemoryAuthentication()
.withUser("spring")
.password("{noop}secret")
.roles("USER");
}
@Override
protected void configure(HttpSecurity http) throws Exception {
http.authorizeRequests()
.antMatchers("/private/**")
.authenticated()
.antMatchers("/public/**")
.permitAll()
.and()
.httpBasic();
}
}

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@ -22,6 +22,10 @@
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-validation</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-thymeleaf</artifactId>
@ -37,4 +41,4 @@
<commons-io.version>2.7</commons-io.version>
</properties>
</project>
</project>

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@ -0,0 +1,12 @@
package com.baeldung.springvalidation;
import org.springframework.boot.builder.SpringApplicationBuilder;
import org.springframework.boot.web.servlet.support.SpringBootServletInitializer;
public class ServletInitializer extends SpringBootServletInitializer {
@Override
protected SpringApplicationBuilder configure(SpringApplicationBuilder application) {
return application.sources(SpringValidationApplication.class);
}
}

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@ -0,0 +1,13 @@
package com.baeldung.springvalidation;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
@SpringBootApplication
public class SpringValidationApplication {
public static void main(String[] args) {
SpringApplication.run(SpringValidationApplication.class, args);
}
}

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@ -0,0 +1,44 @@
package com.baeldung.springvalidation.controller;
import javax.validation.Valid;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.ui.ModelMap;
import org.springframework.validation.BindingResult;
import org.springframework.validation.annotation.Validated;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.ModelAttribute;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import com.baeldung.springvalidation.domain.UserAccount;
import com.baeldung.springvalidation.interfaces.BasicInfo;
@Controller
public class UserAccountController {
@GetMapping("/getUserForm")
public String showUserForm(Model theModel) {
UserAccount theUser = new UserAccount();
theModel.addAttribute("useraccount", theUser);
return "userHome";
}
@RequestMapping(value = "/saveBasicInfo", method = RequestMethod.POST)
public String saveBasicInfo(@Valid @ModelAttribute("useraccount") UserAccount useraccount, BindingResult result, ModelMap model) {
if (result.hasErrors()) {
return "error";
}
return "success";
}
@RequestMapping(value = "/saveBasicInfoStep1", method = RequestMethod.POST)
public String saveBasicInfoStep1(@Validated(BasicInfo.class) @ModelAttribute("useraccount") UserAccount useraccount, BindingResult result, ModelMap model) {
if (result.hasErrors()) {
return "error";
}
return "success";
}
}

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@ -0,0 +1,80 @@
package com.baeldung.springvalidation.domain;
import javax.validation.Valid;
import javax.validation.constraints.Min;
import javax.validation.constraints.NotBlank;
import javax.validation.constraints.NotNull;
import javax.validation.constraints.Size;
import com.baeldung.springvalidation.interfaces.AdvanceInfo;
import com.baeldung.springvalidation.interfaces.BasicInfo;
public class UserAccount {
@NotNull(groups = BasicInfo.class)
@Size(min = 4, max = 15, groups = BasicInfo.class)
private String password;
@NotBlank(groups = BasicInfo.class)
private String name;
@Min(value = 18, message = "Age should not be less than 18", groups = AdvanceInfo.class)
private int age;
@NotBlank(groups = AdvanceInfo.class)
private String phone;
@Valid
@NotNull(groups = AdvanceInfo.class)
private UserAddress useraddress;
public UserAddress getUseraddress() {
return useraddress;
}
public void setUseraddress(UserAddress useraddress) {
this.useraddress = useraddress;
}
public UserAccount() {
}
public UserAccount(String email, String password, String name, int age) {
this.password = password;
this.name = name;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getPassword() {
return password;
}
public void setPassword(String password) {
this.password = password;
}
public int getAge() {
return age;
}
public void setAge(int age) {
this.age = age;
}
public String getPhone() {
return phone;
}
public void setPhone(String phone) {
this.phone = phone;
}
}

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@ -0,0 +1,17 @@
package com.baeldung.springvalidation.domain;
import javax.validation.constraints.NotBlank;
public class UserAddress {
@NotBlank
private String countryCode;
public String getCountryCode() {
return countryCode;
}
public void setCountryCode(String countryCode) {
this.countryCode = countryCode;
}
}

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@ -0,0 +1,6 @@
package com.baeldung.springvalidation.interfaces;
public interface AdvanceInfo {
// validation group marker interface
}

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@ -0,0 +1,6 @@
package com.baeldung.springvalidation.interfaces;
public interface BasicInfo {
// validation group marker interface
}

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@ -0,0 +1,2 @@
spring.mvc.view.prefix=/WEB-INF/views/
spring.mvc.view.suffix=.html

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@ -0,0 +1,10 @@
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<title>SpringValidation</title>
</head>
<body>
<h3>Error!!!</h3>
</body>
</html>

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@ -0,0 +1,10 @@
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<title>SpringValidation</title>
</head>
<body>
<h3>SUCCESS!!!</h3>
</body>
</html>

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@ -0,0 +1,57 @@
package com.baeldung.springvalidation;
import static org.springframework.test.web.servlet.result.MockMvcResultHandlers.print;
import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.model;
import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.status;
import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.view;
import org.junit.jupiter.api.Test;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.autoconfigure.web.servlet.AutoConfigureMockMvc;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.http.MediaType;
import org.springframework.test.web.servlet.MockMvc;
import org.springframework.test.web.servlet.request.MockMvcRequestBuilders;
@SpringBootTest(webEnvironment = SpringBootTest.WebEnvironment.RANDOM_PORT)
@AutoConfigureMockMvc
public class UserAccountUnitTest {
@Autowired
private MockMvc mockMvc;
@Test
public void givenSaveBasicInfo_whenCorrectInput_thenSuccess() throws Exception {
this.mockMvc.perform(MockMvcRequestBuilders.post("/saveBasicInfo")
.accept(MediaType.TEXT_HTML)
.param("name", "test123")
.param("password", "pass"))
.andExpect(view().name("success"))
.andExpect(status().isOk())
.andDo(print());
}
@Test
public void givenSaveBasicInfoStep1_whenCorrectInput_thenSuccess() throws Exception {
this.mockMvc.perform(MockMvcRequestBuilders.post("/saveBasicInfoStep1")
.accept(MediaType.TEXT_HTML)
.param("name", "test123")
.param("password", "pass"))
.andExpect(view().name("success"))
.andExpect(status().isOk())
.andDo(print());
}
@Test
public void givenSaveBasicInfoStep1_whenIncorrectInput_thenError() throws Exception {
this.mockMvc.perform(MockMvcRequestBuilders.post("/saveBasicInfoStep1")
.accept(MediaType.TEXT_HTML))
// .param("name", "test123")
// .param("password", "pass"))
.andExpect(model().errorCount(2))
// .andExpect(view().name("error"))
.andExpect(status().isOk())
.andDo(print());
}
}

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@ -41,7 +41,8 @@
<module>junit-5-advanced</module>
<module>xmlunit-2</module>
<module>junit-4</module>
<module>testing-libraries</module>
<module>testing-libraries</module>
<module>testing-libraries-2</module>
<module>powermock</module>
</modules>

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@ -0,0 +1,43 @@
<project xmlns="http://maven.apache.org/POM/4.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
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>testing-libraries-2</artifactId>
<name>testing-libraries-2</name>
<parent>
<groupId>com.baeldung</groupId>
<artifactId>testing-modules</artifactId>
<version>1.0.0-SNAPSHOT</version>
</parent>
<dependencies>
<dependency>
<groupId>com.github.stefanbirkner</groupId>
<artifactId>system-rules</artifactId>
<version>${system-rules.version}</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>com.github.stefanbirkner</groupId>
<artifactId>system-lambda</artifactId>
<version>${system-lambda.version}</version>
<scope>test</scope>
</dependency>
</dependencies>
<build>
<finalName>testing-libraries</finalName>
<resources>
<resource>
<directory>src/test/resources</directory>
<filtering>true</filtering>
</resource>
</resources>
</build>
<properties>
<system-rules.version>1.19.0</system-rules.version>
<system-lambda.version>1.0.0</system-lambda.version>
</properties>
</project>

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@ -0,0 +1,19 @@
package com.baeldung.systemrules;
import static org.junit.Assert.assertNull;
import org.junit.Rule;
import org.junit.Test;
import org.junit.contrib.java.lang.system.ClearSystemProperties;
public class ClearSystemPropertiesWithRuleUnitTest {
@Rule
public final ClearSystemProperties userNameIsClearedRule = new ClearSystemProperties("user.name");
@Test
public void givenClearUsernameProperty_whenGetUserName_thenNull() {
assertNull(System.getProperty("user.name"));
}
}

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@ -0,0 +1,26 @@
package com.baeldung.systemrules;
import static com.github.stefanbirkner.systemlambda.SystemLambda.restoreSystemProperties;
import static org.junit.Assert.assertEquals;
import org.junit.jupiter.api.BeforeAll;
import org.junit.jupiter.api.Test;
class ProvidesSystemPropertyUnitTest {
@BeforeAll
static void setUpBeforeClass() throws Exception {
System.setProperty("log_dir", "/tmp/baeldung/logs");
}
@Test
void givenSetSystemProperty_whenGetLogDir_thenLogDirIsProvidedSuccessfully() throws Exception {
restoreSystemProperties(() -> {
System.setProperty("log_dir", "test/resources");
assertEquals("log_dir should be provided", "test/resources", System.getProperty("log_dir"));
});
assertEquals("log_dir should be provided", "/tmp/baeldung/logs", System.getProperty("log_dir"));
}
}

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@ -0,0 +1,44 @@
package com.baeldung.systemrules;
import static org.junit.Assert.assertEquals;
import org.junit.AfterClass;
import org.junit.BeforeClass;
import org.junit.Rule;
import org.junit.Test;
import org.junit.contrib.java.lang.system.ProvideSystemProperty;
public class ProvidesSystemPropertyWithRuleUnitTest {
@Rule
public final ProvideSystemProperty providesSystemPropertyRule = new ProvideSystemProperty("log_dir", "test/resources").and("another_property", "another_value");
@Rule
public final ProvideSystemProperty providesSystemPropertyFromFileRule = ProvideSystemProperty.fromResource("/test.properties");
@BeforeClass
public static void setUpBeforeClass() {
setLogs();
}
@AfterClass
public static void tearDownAfterClass() throws Exception {
System.out.println(System.getProperty("log_dir"));
}
@Test
public void givenProvideSystemProperty_whenGetLogDir_thenLogDirIsProvidedSuccessfully() {
assertEquals("log_dir should be provided", "test/resources", System.getProperty("log_dir"));
}
@Test
public void givenProvideSystemPropertyFromFile_whenGetName_thenNameIsProvidedSuccessfully() {
assertEquals("name should be provided", "baeldung", System.getProperty("name"));
assertEquals("version should be provided", "1.0", System.getProperty("version"));
}
private static void setLogs() {
System.setProperty("log_dir", "/tmp/baeldung/logs");
}
}

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@ -0,0 +1,24 @@
package com.baeldung.systemrules;
import static com.github.stefanbirkner.systemlambda.SystemLambda.tapSystemErr;
import org.junit.Assert;
import org.junit.jupiter.api.Test;
class SystemErrPrintlnUnitTest {
@Test
void givenTapSystemErr_whenInvokePrintln_thenOutputIsReturnedSuccessfully() throws Exception {
String text = tapSystemErr(() -> {
printError("An error occurred Baeldung Readers!!");
});
Assert.assertEquals("An error occurred Baeldung Readers!!", text.trim());
}
private void printError(String output) {
System.err.println(output);
}
}

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package com.baeldung.systemrules;
import org.junit.Assert;
import org.junit.Rule;
import org.junit.Test;
import org.junit.contrib.java.lang.system.SystemErrRule;
public class SystemErrPrintlnWithRuleUnitTest {
@Rule
public final SystemErrRule systemErrRule = new SystemErrRule().enableLog();
@Test
public void givenSystemErrRule_whenInvokePrintln_thenLogSuccess() {
printError("An Error occurred Baeldung Readers!!");
Assert.assertEquals("An Error occurred Baeldung Readers!!", systemErrRule.getLog()
.trim());
}
private void printError(String output) {
System.err.println(output);
}
}

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package com.baeldung.systemrules;
import static org.junit.Assert.assertEquals;
import static com.github.stefanbirkner.systemlambda.SystemLambda.catchSystemExit;
import org.junit.jupiter.api.Test;
class SystemExitUnitTest {
@Test
void givenCatchSystemExit_whenAppCallsSystemExit_thenStatusIsReturnedSuccessfully() throws Exception {
int statusCode = catchSystemExit(() -> {
exit();
});
assertEquals("status code should be 1:", 1, statusCode);
}
private void exit() {
System.exit(1);
}
}

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package com.baeldung.systemrules;
import org.junit.Rule;
import org.junit.Test;
import org.junit.contrib.java.lang.system.ExpectedSystemExit;
public class SystemExitWithRuleUnitTest {
@Rule
public final ExpectedSystemExit exitRule = ExpectedSystemExit.none();
@Test
public void givenSystemExitRule_whenAppCallsSystemExit_thenExitRuleWorkssAsExpected() {
exitRule.expectSystemExitWithStatus(1);
exit();
}
private void exit() {
System.exit(1);
}
}

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package com.baeldung.systemrules;
import static com.github.stefanbirkner.systemlambda.SystemLambda.withTextFromSystemIn;
import static org.junit.Assert.assertEquals;
import java.util.Scanner;
import org.junit.jupiter.api.Test;
class SystemInUnitTest {
@Test
void givenTwoNames_whenSystemInMock_thenNamesJoinedTogether() throws Exception {
withTextFromSystemIn("Jonathan", "Cook").execute(() -> {
assertEquals("Names should be concatenated", "Jonathan Cook", getFullname());
});
}
private String getFullname() {
try (Scanner scanner = new Scanner(System.in)) {
String firstName = scanner.next();
String surname = scanner.next();
return String.join(" ", firstName, surname);
}
}
}

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package com.baeldung.systemrules;
import static org.junit.Assert.assertEquals;
import java.util.Scanner;
import org.junit.Rule;
import org.junit.Test;
import org.junit.contrib.java.lang.system.TextFromStandardInputStream;
import static org.junit.contrib.java.lang.system.TextFromStandardInputStream.emptyStandardInputStream;
public class SystemInWithRuleUnitTest {
@Rule
public final TextFromStandardInputStream systemInMock = emptyStandardInputStream();
@Test
public void givenTwoNames_whenSystemInMock_thenNamesJoinedTogether() {
systemInMock.provideLines("Jonathan", "Cook");
assertEquals("Names should be concatenated", "Jonathan Cook", getFullname());
}
private String getFullname() {
try (Scanner scanner = new Scanner(System.in)) {
String firstName = scanner.next();
String surname = scanner.next();
return String.join(" ", firstName, surname);
}
}
}

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name=baeldung
version=1.0