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junit 5 extensions (#2233) 

* junit 5 extensions

* fix exceptions

* add back parent
This commit is contained in:
lor6 2017-07-11 08:54:52 +03:00 committed by Grzegorz Piwowarek
parent e6a0bbe090
commit dfae14537b
15 changed files with 376 additions and 38 deletions
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90
junit5/pom.xml
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@ -9,7 +9,7 @@
<name>junit5</name>
<description>Intro to JUnit 5</description>
<parent>
<groupId>com.baeldung</groupId>
<artifactId>parent-modules</artifactId>
@ -19,16 +19,24 @@
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<java.version>1.8</java.version>
<junit.jupiter.version>5.0.0-M4</junit.jupiter.version>
<junit.platform.version>1.0.0-M4</junit.platform.version>
<junit.vintage.version>4.12.0-M4</junit.vintage.version>
<junit4.version>4.12</junit4.version>
<junit.jupiter.version>5.0.0-M5</junit.jupiter.version>
<junit.platform.version>1.0.0-M5</junit.platform.version>
<junit.vintage.version>4.12.0-M5</junit.vintage.version>
<log4j2.version>2.8.2</log4j2.version>
<h2.version>1.4.196</h2.version>
<maven-compiler-plugin.version>3.6.0</maven-compiler-plugin.version>
<maven-surefire-plugin.version>2.19.1</maven-surefire-plugin.version>
<junit4.version>4.12</junit4.version>
</properties>
<build>
<resources>
<resource>
<directory>src/test/resources</directory>
<filtering>true</filtering>
</resource>
</resources>
<plugins>
<plugin>
<artifactId>maven-compiler-plugin</artifactId>
@ -49,44 +57,60 @@
</dependency>
</dependencies>
</plugin>
<plugin>
<groupId>org.codehaus.mojo</groupId>
<artifactId>exec-maven-plugin</artifactId>
<version>1.6.0</version>
<executions>
<execution>
<goals>
<goal>java</goal>
</goals>
</execution>
</executions>
<configuration>
<mainClass>com.baeldung.TestLauncher</mainClass>
</configuration>
</plugin>
</plugins>
</build>
<dependencies>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>${junit4.version}</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.junit.jupiter</groupId>
<artifactId>junit-jupiter-api</artifactId>
<version>${junit.jupiter.version}</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.junit.jupiter</groupId>
<artifactId>junit-jupiter-engine</artifactId>
<version>${junit.jupiter.version}</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.junit.platform</groupId>
<artifactId>junit-platform-runner</artifactId>
<version>${junit.platform.version}</version>
<scope>test</scope>
</dependency>
<!-- <dependency>
<groupId>org.junit.vintage</groupId>
<artifactId>junit-vintage-engine</artifactId>
<version>${junit.vintage.version}</version>
<scope>test</scope>
</dependency> -->
<groupId>org.junit.platform</groupId>
<artifactId>junit-platform-runner</artifactId>
<version>${junit.platform.version}</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.junit.vintage</groupId>
<artifactId>junit-vintage-engine</artifactId>
<version>${junit.vintage.version}</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.apache.logging.log4j</groupId>
<artifactId>log4j-core</artifactId>
<version>${log4j2.version}</version>
</dependency>
<dependency>
<groupId>com.h2database</groupId>
<artifactId>h2</artifactId>
<version>${h2.version}</version>
</dependency>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>${junit4.version}</version>
<scope>test</scope>
</dependency>
</dependencies>
</project>

48
junit5/src/test/java/com/baeldung/EmployeesTest.java Normal file
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@ -0,0 +1,48 @@
package com.baeldung;
import java.sql.SQLException;
import org.apache.logging.log4j.Logger;
import org.junit.jupiter.api.Test;
import org.junit.jupiter.api.extension.ExtendWith;
import com.baeldung.extensions.EmployeeDaoParameterResolver;
import com.baeldung.extensions.EmployeeDatabaseSetupExtension;
import com.baeldung.extensions.EnvironmentExtension;
import com.baeldung.extensions.IgnoreFileNotFoundExceptionExtension;
import com.baeldung.extensions.LoggingExtension;
import com.baeldung.helpers.Employee;
import com.baeldung.helpers.EmployeeJdbcDao;
import static org.junit.jupiter.api.Assertions.*;
@ExtendWith({ EnvironmentExtension.class, EmployeeDatabaseSetupExtension.class, EmployeeDaoParameterResolver.class })
@ExtendWith(LoggingExtension.class)
@ExtendWith(IgnoreFileNotFoundExceptionExtension.class)
public class EmployeesTest {
private EmployeeJdbcDao employeeDao;
private Logger logger;
public EmployeesTest(EmployeeJdbcDao employeeDao) {
this.employeeDao = employeeDao;
}
@Test
public void whenAddEmployee_thenGetEmployee() throws SQLException {
Employee emp = new Employee(1, "john");
employeeDao.add(emp);
assertEquals(1, employeeDao.findAll().size());
}
@Test
public void whenGetEmployees_thenEmptyList() throws SQLException {
assertEquals(0, employeeDao.findAll().size());
}
public void setLogger(Logger logger) {
this.logger = logger;
}
}

37
junit5/src/test/java/com/baeldung/TestLauncher.java Normal file
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@ -0,0 +1,37 @@
package com.baeldung;
import org.junit.platform.launcher.LauncherDiscoveryRequest;
import org.junit.platform.launcher.TestExecutionListener;
import org.junit.platform.launcher.TestPlan;
import org.junit.platform.launcher.core.LauncherDiscoveryRequestBuilder;
import org.junit.platform.launcher.core.LauncherFactory;
import org.junit.platform.launcher.listeners.SummaryGeneratingListener;
import static org.junit.platform.engine.discovery.DiscoverySelectors.selectClass;
import java.io.PrintWriter;
import org.junit.platform.launcher.Launcher;
public class TestLauncher {
public static void main(String[] args) {
//@formatter:off
LauncherDiscoveryRequest request = LauncherDiscoveryRequestBuilder.request()
.selectors(selectClass("com.baeldung.EmployeesTest"))
.configurationParameter("junit.conditions.deactivate", "com.baeldung.extensions.*")
.configurationParameter("junit.extensions.autodetection.enabled", "true")
.build();
//@formatter:on
TestPlan plan = LauncherFactory.create().discover(request);
Launcher launcher = LauncherFactory.create();
SummaryGeneratingListener summaryGeneratingListener = new SummaryGeneratingListener();
launcher.execute(request, new TestExecutionListener[] { summaryGeneratingListener });
launcher.execute(request);
summaryGeneratingListener.getSummary().printTo(new PrintWriter(System.out));
}
}

23
junit5/src/test/java/com/baeldung/extensions/EmployeeDaoParameterResolver.java Normal file
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@ -0,0 +1,23 @@
package com.baeldung.extensions;
import org.junit.jupiter.api.extension.ExtensionContext;
import org.junit.jupiter.api.extension.ParameterContext;
import org.junit.jupiter.api.extension.ParameterResolutionException;
import org.junit.jupiter.api.extension.ParameterResolver;
import com.baeldung.helpers.EmployeeJdbcDao;
import com.baeldung.helpers.JdbcConnectionUtil;
public class EmployeeDaoParameterResolver implements ParameterResolver {
@Override
public boolean supportsParameter(ParameterContext parameterContext, ExtensionContext extensionContext) throws ParameterResolutionException {
return parameterContext.getParameter().getType().equals(EmployeeJdbcDao.class);
}
@Override
public Object resolveParameter(ParameterContext parameterContext, ExtensionContext extensionContext) throws ParameterResolutionException {
return new EmployeeJdbcDao(JdbcConnectionUtil.getConnection());
}
}

46
junit5/src/test/java/com/baeldung/extensions/EmployeeDatabaseSetupExtension.java Normal file
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@ -0,0 +1,46 @@
package com.baeldung.extensions;
import java.sql.Connection;
import java.sql.SQLException;
import java.sql.Savepoint;
import org.junit.jupiter.api.extension.AfterAllCallback;
import org.junit.jupiter.api.extension.AfterEachCallback;
import org.junit.jupiter.api.extension.BeforeAllCallback;
import org.junit.jupiter.api.extension.BeforeEachCallback;
import org.junit.jupiter.api.extension.ExtensionContext;
import com.baeldung.helpers.EmployeeJdbcDao;
import com.baeldung.helpers.JdbcConnectionUtil;
public class EmployeeDatabaseSetupExtension implements BeforeAllCallback, AfterAllCallback, BeforeEachCallback, AfterEachCallback {
private Connection con = JdbcConnectionUtil.getConnection();
private EmployeeJdbcDao employeeDao = new EmployeeJdbcDao(con);
private Savepoint savepoint;
@Override
public void afterAll(ExtensionContext context) throws SQLException {
if (con != null) {
con.close();
}
}
@Override
public void beforeAll(ExtensionContext context) throws SQLException {
employeeDao.createTable();
}
@Override
public void afterEach(ExtensionContext context) throws SQLException {
con.rollback(savepoint);
}
@Override
public void beforeEach(ExtensionContext context) throws SQLException {
con.setAutoCommit(false);
savepoint = con.setSavepoint("before");
}
}

27
junit5/src/test/java/com/baeldung/extensions/EnvironmentExtension.java Normal file
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@ -0,0 +1,27 @@
package com.baeldung.extensions;
import java.io.IOException;
import java.util.Properties;
import org.junit.jupiter.api.extension.ConditionEvaluationResult;
import org.junit.jupiter.api.extension.ExecutionCondition;
import org.junit.jupiter.api.extension.ExtensionContext;
public class EnvironmentExtension implements ExecutionCondition {
@Override
public ConditionEvaluationResult evaluateExecutionCondition(ExtensionContext context) {
Properties props = new Properties();
try {
props.load(EnvironmentExtension.class.getResourceAsStream("application.properties"));
String env = props.getProperty("env");
if ("qa".equalsIgnoreCase(env)) {
return ConditionEvaluationResult.disabled("Test disabled on QA environment");
}
} catch (IOException e) {
e.printStackTrace();
}
return ConditionEvaluationResult.enabled("Test enabled on QA environment");
}
}

23
junit5/src/test/java/com/baeldung/extensions/IgnoreFileNotFoundExceptionExtension.java Normal file
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@ -0,0 +1,23 @@
package com.baeldung.extensions;
import java.io.FileNotFoundException;
import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
import org.junit.jupiter.api.extension.ExtensionContext;
import org.junit.jupiter.api.extension.TestExecutionExceptionHandler;
public class IgnoreFileNotFoundExceptionExtension implements TestExecutionExceptionHandler {
Logger logger = LogManager.getLogger(IgnoreFileNotFoundExceptionExtension.class);
@Override
public void handleTestExecutionException(ExtensionContext context, Throwable throwable) throws Throwable {
if (throwable instanceof FileNotFoundException) {
logger.error("File not found:" + throwable.getMessage());
return;
}
throw throwable;
}
}

16
junit5/src/test/java/com/baeldung/extensions/LoggingExtension.java Normal file
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@ -0,0 +1,16 @@
package com.baeldung.extensions;
import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
import org.junit.jupiter.api.extension.ExtensionContext;
import org.junit.jupiter.api.extension.TestInstancePostProcessor;
public class LoggingExtension implements TestInstancePostProcessor {
@Override
public void postProcessTestInstance(Object testInstance, ExtensionContext context) throws Exception {
Logger logger = LogManager.getLogger(testInstance.getClass());
testInstance.getClass().getMethod("setLogger", Logger.class).invoke(testInstance, logger);
}
}

51
junit5/src/test/java/com/baeldung/helpers/EmployeeJdbcDao.java Normal file
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@ -0,0 +1,51 @@
package com.baeldung.helpers;
import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.util.ArrayList;
import java.util.List;
import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
public class EmployeeJdbcDao {
private Connection con;
public EmployeeJdbcDao(Connection con) {
this.con = con;
}
public void createTable() throws SQLException {
String createQuery = "CREATE TABLE employees(id long primary key, firstName varchar(50))";
PreparedStatement pstmt = con.prepareStatement(createQuery);
pstmt.execute();
}
public void add(Employee emp) throws SQLException {
String insertQuery = "INSERT INTO employees(id, firstName) VALUES(?,?)";
PreparedStatement pstmt = con.prepareStatement(insertQuery);
pstmt.setLong(1, emp.getId());
pstmt.setString(2, emp.getFirstName());
pstmt.executeUpdate();
}
public List<Employee> findAll() throws SQLException {
List<Employee> employees = new ArrayList<>();
String query = "SELECT * FROM employees";
PreparedStatement pstmt = con.prepareStatement(query);
ResultSet rs = pstmt.executeQuery();
while (rs.next()) {
Employee emp = new Employee(rs.getLong("id"), rs.getString("firstName"));
employees.add(emp);
}
return employees;
}
}

32
junit5/src/test/java/com/baeldung/helpers/JdbcConnectionUtil.java Normal file
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@ -0,0 +1,32 @@
package com.baeldung.helpers;
import java.io.IOException;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.SQLException;
import java.util.Properties;
public class JdbcConnectionUtil {
private static Connection con;
public static Connection getConnection() {
if (con == null) {
try {
Properties props = new Properties();
props.load(JdbcConnectionUtil.class.getResourceAsStream("jdbc.properties"));
Class.forName(props.getProperty("jdbc.driver"));
con = DriverManager.getConnection(props.getProperty("jdbc.url"), props.getProperty("jdbc.user"), props.getProperty("jdbc.password"));
return con;
} catch (IOException exc) {
exc.printStackTrace();
} catch (ClassNotFoundException exc) {
exc.printStackTrace();
} catch (SQLException exc) {
exc.printStackTrace();
}
return null;
}
return con;
}
}

6
junit5/src/test/java/com/baeldung/migration/junit5/extensions/TraceUnitExtension.java
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@ -2,17 +2,17 @@ package com.baeldung.migration.junit5.extensions;
import org.junit.jupiter.api.extension.AfterEachCallback;
import org.junit.jupiter.api.extension.BeforeEachCallback;
import org.junit.jupiter.api.extension.TestExtensionContext;
import org.junit.jupiter.api.extension.ExtensionContext;
public class TraceUnitExtension implements AfterEachCallback, BeforeEachCallback {
@Override
public void beforeEach(TestExtensionContext context) throws Exception {
public void beforeEach(ExtensionContext context) throws Exception {
System.out.println("Starting test ... " + context.getDisplayName());
}
@Override
public void afterEach(TestExtensionContext context) throws Exception {
public void afterEach(ExtensionContext context) throws Exception {
System.out.println("... test finished. " + context.getDisplayName());
}

8
junit5/src/test/java/com/baeldung/suites/AllTests.java
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@ -1,7 +1,11 @@
package com.baeldung.suites;
//@RunWith(JUnitPlatform.class)
//@SelectPackages("com.baeldung")
import org.junit.platform.runner.JUnitPlatform;
import org.junit.platform.suite.api.SelectPackages;
import org.junit.runner.RunWith;
@RunWith(JUnitPlatform.class)
@SelectPackages("com.baeldung")
//@SelectClasses({AssertionTest.class, AssumptionTest.class, ExceptionTest.class})
public class AllTests {

1
junit5/src/test/resources/META-INF/services/org.junit.jupiter.api.extension.Extension Normal file
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@ -0,0 +1 @@
com.baeldung.extensions.EmployeeDaoParameterResolver

1
junit5/src/test/resources/com/baeldung/extensions/application.properties Normal file
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@ -0,0 +1 @@
env=dev

5
junit5/src/test/resources/com/baeldung/helpers/jdbc.properties Normal file
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@ -0,0 +1,5 @@
#h2 db
jdbc.driver=org.h2.Driver
jdbc.url=jdbc:h2:mem:myDb;DB_CLOSE_DELAY=-1
jdbc.user=sa
jdbc.password=