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junit 5 extensions (eugenp#2233)
* junit 5 extensions * fix exceptions * add back parent
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-38
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lines changed

‎junit5/pom.xml‎

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Original file line numberDiff line numberDiff line change
@@ -9,7 +9,7 @@
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<name>junit5</name>
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<description>Intro to JUnit 5</description>
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<parent>
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<groupId>com.baeldung</groupId>
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<artifactId>parent-modules</artifactId>
@@ -19,16 +19,24 @@
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<properties>
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<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
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<java.version>1.8</java.version>
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<junit.jupiter.version>5.0.0-M4</junit.jupiter.version>
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<junit.platform.version>1.0.0-M4</junit.platform.version>
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<junit.vintage.version>4.12.0-M4</junit.vintage.version>
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<junit4.version>4.12</junit4.version>
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<junit.jupiter.version>5.0.0-M5</junit.jupiter.version>
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<junit.platform.version>1.0.0-M5</junit.platform.version>
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<junit.vintage.version>4.12.0-M5</junit.vintage.version>
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<log4j2.version>2.8.2</log4j2.version>
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<h2.version>1.4.196</h2.version>
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<maven-compiler-plugin.version>3.6.0</maven-compiler-plugin.version>
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<maven-surefire-plugin.version>2.19.1</maven-surefire-plugin.version>
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<junit4.version>4.12</junit4.version>
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</properties>
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<build>
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<resources>
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<resource>
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<directory>src/test/resources</directory>
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<filtering>true</filtering>
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</resource>
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</resources>
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<plugins>
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<plugin>
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<artifactId>maven-compiler-plugin</artifactId>
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</dependency>
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</dependencies>
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</plugin>
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<plugin>
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<groupId>org.codehaus.mojo</groupId>
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<artifactId>exec-maven-plugin</artifactId>
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<version>1.6.0</version>
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<executions>
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<execution>
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<goals>
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<goal>java</goal>
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</goals>
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</execution>
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</executions>
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<configuration>
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<mainClass>com.baeldung.TestLauncher</mainClass>
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</configuration>
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</plugin>
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</plugins>
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</build>
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<dependencies>
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<dependency>
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<groupId>junit</groupId>
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<artifactId>junit</artifactId>
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<version>${junit4.version}</version>
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<scope>test</scope>
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</dependency>
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<dependency>
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<groupId>org.junit.jupiter</groupId>
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<artifactId>junit-jupiter-api</artifactId>
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<version>${junit.jupiter.version}</version>
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<scope>test</scope>
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</dependency>
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<dependency>
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<groupId>org.junit.jupiter</groupId>
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<artifactId>junit-jupiter-engine</artifactId>
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<version>${junit.jupiter.version}</version>
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<scope>test</scope>
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</dependency>
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<dependency>
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<groupId>org.junit.platform</groupId>
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<artifactId>junit-platform-runner</artifactId>
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<version>${junit.platform.version}</version>
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<scope>test</scope>
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</dependency>
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<!-- <dependency>
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<groupId>org.junit.vintage</groupId>
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<artifactId>junit-vintage-engine</artifactId>
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<version>${junit.vintage.version}</version>
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<scope>test</scope>
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</dependency> -->
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<groupId>org.junit.platform</groupId>
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<artifactId>junit-platform-runner</artifactId>
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<version>${junit.platform.version}</version>
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<scope>test</scope>
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</dependency>
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<dependency>
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<groupId>org.junit.vintage</groupId>
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<artifactId>junit-vintage-engine</artifactId>
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<version>${junit.vintage.version}</version>
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<scope>test</scope>
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</dependency>
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<dependency>
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<groupId>org.apache.logging.log4j</groupId>
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<artifactId>log4j-core</artifactId>
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<version>${log4j2.version}</version>
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</dependency>
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<dependency>
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<groupId>com.h2database</groupId>
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<artifactId>h2</artifactId>
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<version>${h2.version}</version>
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</dependency>
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<dependency>
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<groupId>junit</groupId>
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<artifactId>junit</artifactId>
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<version>${junit4.version}</version>
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<scope>test</scope>
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</dependency>
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</dependencies>
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</project>

‎junit5/src/test/java/com/baeldung/EmployeesTest.java‎

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package com.baeldung;
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import java.sql.SQLException;
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import org.apache.logging.log4j.Logger;
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import org.junit.jupiter.api.Test;
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import org.junit.jupiter.api.extension.ExtendWith;
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import com.baeldung.extensions.EmployeeDaoParameterResolver;
10+
import com.baeldung.extensions.EmployeeDatabaseSetupExtension;
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import com.baeldung.extensions.EnvironmentExtension;
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import com.baeldung.extensions.IgnoreFileNotFoundExceptionExtension;
13+
import com.baeldung.extensions.LoggingExtension;
14+
import com.baeldung.helpers.Employee;
15+
import com.baeldung.helpers.EmployeeJdbcDao;
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import static org.junit.jupiter.api.Assertions.*;
18+
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@ExtendWith({ EnvironmentExtension.class, EmployeeDatabaseSetupExtension.class, EmployeeDaoParameterResolver.class })
20+
@ExtendWith(LoggingExtension.class)
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@ExtendWith(IgnoreFileNotFoundExceptionExtension.class)
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public class EmployeesTest {
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private EmployeeJdbcDao employeeDao;
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private Logger logger;
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public EmployeesTest(EmployeeJdbcDao employeeDao) {
29+
this.employeeDao = employeeDao;
30+
}
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@Test
33+
public void whenAddEmployee_thenGetEmployee() throws SQLException {
34+
Employee emp = new Employee(1, "john");
35+
employeeDao.add(emp);
36+
assertEquals(1, employeeDao.findAll().size());
37+
}
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@Test
40+
public void whenGetEmployees_thenEmptyList() throws SQLException {
41+
assertEquals(0, employeeDao.findAll().size());
42+
}
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public void setLogger(Logger logger) {
45+
this.logger = logger;
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}
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}

‎junit5/src/test/java/com/baeldung/TestLauncher.java‎

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package com.baeldung;
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import org.junit.platform.launcher.LauncherDiscoveryRequest;
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import org.junit.platform.launcher.TestExecutionListener;
5+
import org.junit.platform.launcher.TestPlan;
6+
import org.junit.platform.launcher.core.LauncherDiscoveryRequestBuilder;
7+
import org.junit.platform.launcher.core.LauncherFactory;
8+
import org.junit.platform.launcher.listeners.SummaryGeneratingListener;
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import static org.junit.platform.engine.discovery.DiscoverySelectors.selectClass;
11+
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import java.io.PrintWriter;
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import org.junit.platform.launcher.Launcher;
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public class TestLauncher {
17+
public static void main(String[] args) {
18+
19+
//@formatter:off
20+
LauncherDiscoveryRequest request = LauncherDiscoveryRequestBuilder.request()
21+
.selectors(selectClass("com.baeldung.EmployeesTest"))
22+
.configurationParameter("junit.conditions.deactivate", "com.baeldung.extensions.*")
23+
.configurationParameter("junit.extensions.autodetection.enabled", "true")
24+
.build();
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//@formatter:on
27+
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TestPlan plan = LauncherFactory.create().discover(request);
29+
Launcher launcher = LauncherFactory.create();
30+
SummaryGeneratingListener summaryGeneratingListener = new SummaryGeneratingListener();
31+
launcher.execute(request, new TestExecutionListener[] { summaryGeneratingListener });
32+
launcher.execute(request);
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summaryGeneratingListener.getSummary().printTo(new PrintWriter(System.out));
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}
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}

‎junit5/src/test/java/com/baeldung/extensions/EmployeeDaoParameterResolver.java‎

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package com.baeldung.extensions;
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import org.junit.jupiter.api.extension.ExtensionContext;
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import org.junit.jupiter.api.extension.ParameterContext;
5+
import org.junit.jupiter.api.extension.ParameterResolutionException;
6+
import org.junit.jupiter.api.extension.ParameterResolver;
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import com.baeldung.helpers.EmployeeJdbcDao;
9+
import com.baeldung.helpers.JdbcConnectionUtil;
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11+
public class EmployeeDaoParameterResolver implements ParameterResolver {
12+
13+
@Override
14+
public boolean supportsParameter(ParameterContext parameterContext, ExtensionContext extensionContext) throws ParameterResolutionException {
15+
return parameterContext.getParameter().getType().equals(EmployeeJdbcDao.class);
16+
}
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@Override
19+
public Object resolveParameter(ParameterContext parameterContext, ExtensionContext extensionContext) throws ParameterResolutionException {
20+
return new EmployeeJdbcDao(JdbcConnectionUtil.getConnection());
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}
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}

‎junit5/src/test/java/com/baeldung/extensions/EmployeeDatabaseSetupExtension.java‎

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package com.baeldung.extensions;
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import java.sql.Connection;
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import java.sql.SQLException;
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import java.sql.Savepoint;
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import org.junit.jupiter.api.extension.AfterAllCallback;
8+
import org.junit.jupiter.api.extension.AfterEachCallback;
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import org.junit.jupiter.api.extension.BeforeAllCallback;
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import org.junit.jupiter.api.extension.BeforeEachCallback;
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import org.junit.jupiter.api.extension.ExtensionContext;
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import com.baeldung.helpers.EmployeeJdbcDao;
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import com.baeldung.helpers.JdbcConnectionUtil;
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public class EmployeeDatabaseSetupExtension implements BeforeAllCallback, AfterAllCallback, BeforeEachCallback, AfterEachCallback {
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private Connection con = JdbcConnectionUtil.getConnection();
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private EmployeeJdbcDao employeeDao = new EmployeeJdbcDao(con);
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private Savepoint savepoint;
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@Override
23+
public void afterAll(ExtensionContext context) throws SQLException {
24+
if (con != null) {
25+
con.close();
26+
}
27+
}
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@Override
30+
public void beforeAll(ExtensionContext context) throws SQLException {
31+
employeeDao.createTable();
32+
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}
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@Override
36+
public void afterEach(ExtensionContext context) throws SQLException {
37+
con.rollback(savepoint);
38+
}
39+
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@Override
41+
public void beforeEach(ExtensionContext context) throws SQLException {
42+
con.setAutoCommit(false);
43+
savepoint = con.setSavepoint("before");
44+
}
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}

‎junit5/src/test/java/com/baeldung/extensions/EnvironmentExtension.java‎

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package com.baeldung.extensions;
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import java.io.IOException;
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import java.util.Properties;
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import org.junit.jupiter.api.extension.ConditionEvaluationResult;
7+
import org.junit.jupiter.api.extension.ExecutionCondition;
8+
import org.junit.jupiter.api.extension.ExtensionContext;
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public class EnvironmentExtension implements ExecutionCondition {
11+
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@Override
13+
public ConditionEvaluationResult evaluateExecutionCondition(ExtensionContext context) {
14+
Properties props = new Properties();
15+
16+
try {
17+
props.load(EnvironmentExtension.class.getResourceAsStream("application.properties"));
18+
String env = props.getProperty("env");
19+
if ("qa".equalsIgnoreCase(env)) {
20+
return ConditionEvaluationResult.disabled("Test disabled on QA environment");
21+
}
22+
} catch (IOException e) {
23+
e.printStackTrace();
24+
}
25+
return ConditionEvaluationResult.enabled("Test enabled on QA environment");
26+
}
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}

‎junit5/src/test/java/com/baeldung/extensions/IgnoreFileNotFoundExceptionExtension.java‎

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package com.baeldung.extensions;
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import java.io.FileNotFoundException;
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import org.apache.logging.log4j.LogManager;
6+
import org.apache.logging.log4j.Logger;
7+
import org.junit.jupiter.api.extension.ExtensionContext;
8+
import org.junit.jupiter.api.extension.TestExecutionExceptionHandler;
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public class IgnoreFileNotFoundExceptionExtension implements TestExecutionExceptionHandler {
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Logger logger = LogManager.getLogger(IgnoreFileNotFoundExceptionExtension.class);
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@Override
15+
public void handleTestExecutionException(ExtensionContext context, Throwable throwable) throws Throwable {
16+
17+
if (throwable instanceof FileNotFoundException) {
18+
logger.error("File not found:" + throwable.getMessage());
19+
return;
20+
}
21+
throw throwable;
22+
}
23+
}

‎junit5/src/test/java/com/baeldung/extensions/LoggingExtension.java‎

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package com.baeldung.extensions;
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import org.apache.logging.log4j.LogManager;
4+
import org.apache.logging.log4j.Logger;
5+
import org.junit.jupiter.api.extension.ExtensionContext;
6+
import org.junit.jupiter.api.extension.TestInstancePostProcessor;
7+
8+
public class LoggingExtension implements TestInstancePostProcessor {
9+
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@Override
11+
public void postProcessTestInstance(Object testInstance, ExtensionContext context) throws Exception {
12+
Logger logger = LogManager.getLogger(testInstance.getClass());
13+
testInstance.getClass().getMethod("setLogger", Logger.class).invoke(testInstance, logger);
14+
}
15+
16+
}

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