Testing

• org.junit.Assert.assertEquals(expected, input), deprecated
• org.junit.Assert.assertArrayEquals(expected, input)

Unit Testing

• Idea = write tests for every "unit"

Test-Driven Development (TDD)

• Test-Driven Development = write unit tests before code
• Identify new feature
• Write test for feature → run test → should fail
• Write code that passes test
• Refactor code to make it faster/cleaner/etc.

Complementary Approach to Unit Testing: Integration Testing

• Idea = tests cover many units at once (entire program)
• Not JUnit's focus, but can be used
• Unit testing not enough to ensure modules interact properly or that system works as expected