JUnit
A staple of Java testing — simple, extensible, and battle-tested.
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Why JUnit?
Java Native
The default unit testing framework for Java with deep JVM integration.
Annotation-Driven
Simplifies test lifecycle control with rich annotations like @Test, @BeforeEach, etc.
Framework Integration
Works seamlessly with Maven, Gradle, Spring, and other Java ecosystems.
Parameterized Tests
Run the same test logic against different inputs with minimal boilerplate.
Mature Ecosystem
Long-standing support, tooling, IDE integration, and community resources.
Where JUnit Shines
Java Backend Testing
Spring Application Testing
CI with Gradle/Maven
Test-Driven Development
Legacy Code Refactoring
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