QABattle

Java Test Automation / Quiz

Assertion Wars: TestNG vs AssertJ vs Hamcrest

Three dialects, one job. Argument orders, fluent chains, matcher composition, and the SoftAssert that fails silently without assertAll().

Difficulty
Medium
Format
Quiz
Points
150
Estimate
9 min

// MISSION BRIEF

Your Mission

Java test code speaks three assertion dialects: TestNG/JUnit's classic asserts, AssertJ's fluent chains, and hamcrest's composable matchers. Each has a home turf, and one of them has a famous silent failure mode.

This quiz makes you fluent in all three, including the soft-assertion patterns that gather ALL the bad news before failing.

// FIRST CONTACT

Battle teaser

TestNG's Assert.assertEquals parameter order is:

  1. AOrder does not matter, equality is symmetric
  2. BTestNG only accepts a single argument
  3. CassertEquals(expected, actual), same as JUnit
  4. DassertEquals(actual, expected), the reverse of JUnit's (expected, actual); getting it wrong flips every failure message
Answers, scoring, hints, and the full battle stay sealed.

// SKILL TAGS

javaassertionsassertjsoft-asserts