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Testing Mastery: JUnit, Mockito & Integration Tests · Lesson

JUnit Assertions & Execution

Learn to use JUnit's assertion methods to validate test outcomes and run tests effectively within your IDE.

What are Assertions?

Assertions are the checks that decide pass or fail: they verify a condition is true, and if it isn’t, the test fails and flags the problem.

Checking for Equality

assertEquals() is the workhorse: pass it the expected value and the actual value, and the test passes only when they match.

All lessons in this course

  1. Introduction to Unit Testing
  2. Basic JUnit 5 Annotations
  3. JUnit Assertions & Execution
  4. Organizing Tests with @DisplayName and Nesting
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