Pragmatic Unit Testing in Java with JUnit, 3rd Edition

Adding a New Feature: Suffixes

I moved on to the next code increment, again providing an example for the LLM to translate into a test.

YOU:

Alter both the code and the tests to support suffixes. A suffix appears after a comma at the end of a name.

Examples

input: Martin Luther King, Jr.

output: King, Martin L., Jr.

Here’s what ChatGPT spewed out:

utj3-ai/05/src/test/java/util/NameNormalizerTest.java

@Test
public void nameWithSuffix() {
   assertEquals("King, Martin L., Jr.",
       normalizer.normalizeName("Martin Luther King, Jr."));
}

utj3-ai/05/src/main/java/util/NameNormalizer.java

public class NameNormalizer {

   private String[] nameParts;
   private String suffix = "";

   public String normalizeName(String name) {
  ...