Test Execution and Validation

Name: test-execution
Rating: 76
Author: comeredon

Maven Commands

bash

mvn test                    # Unit tests only
mvn verify                  # Unit + integration tests
mvn test -Dtest=ClassName   # Specific class
mvn test -Dtest=Class#method # Specific method
mvn package -DskipTests     # Build without tests

JaCoCo Coverage Setup

xml

<plugin>
    <groupId>org.jacoco</groupId>
    <artifactId>jacoco-maven-plugin</artifactId>
    <version>0.8.11</version>
    <executions>
        <execution><goals><goal>prepare-agent</goal></goals></execution>
        <execution>
            <id>report</id><phase>test</phase>
            <goals><goal>report</goal></goals>
        </execution>
    </executions>
</plugin>

bash

mvn clean test jacoco:report   # Generate report at target/site/jacoco/index.html

Coverage Goals

Component	Minimum
Business Logic	90%
Data Models	95%
I/O Operations	80%
Utilities	70%

Analyzing Failures

•Check target/surefire-reports/TEST-*.txt for details
•Look for expected:<X> but was:<Y> in assertion errors
•Re-run specific test: mvn test -Dtest=Class#method

Common Issues

Problem	Fix
"Tests Run: 0"	Class name must end with `Test`
NoClassDefFoundError	Missing test dependency in pom.xml
Flaky tests	Use `@BeforeEach` to reset state