src/Q1/ReversedSentenceTest.java


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package ca.mokhan.test;

import Q1.*;
import junit.framework.Test;
import junit.framework.TestCase;
import junit.framework.TestSuite;

public class ReversedSentenceTest extends TestCase {
  private ReversedSentence subject;

  public ReversedSentenceTest(String testName) {
    super(testName);
    this.subject = new ReversedSentence();
  }

  public static Test suite() {
    return new TestSuite(ReversedSentenceTest.class);
  }

  public void testTruthy() {
    assertEquals(true, true);
  }

  public void testReverseByCharacter() {
    assertEquals(
        "bmal elttil a dah yram", ReversedSentence.reverseByCharacter("mary had a little lamb"));
  }

  public void testReverseByWord() {
    assertEquals(
        "lamb little a had mary", ReversedSentence.reverseByWord("mary had a little lamb"));
  }

  public void testChange5thPosition() {
    assertEquals(
        "mary zad azlittze lazb", ReversedSentence.change5thPosition("mary had a little lamb"));
  }

  public void testPrintChar2DArray() {
    char[][] matrix = new char[3][80];
    String sentence = "mary had a little lamb";
    matrix[0] = ReversedSentence.reverseByCharacter(sentence).toCharArray();
    matrix[1] = ReversedSentence.reverseByWord(sentence).toCharArray();
    matrix[2] = ReversedSentence.change5thPosition(sentence).toCharArray();

    String expected =
        String.join(
            System.lineSeparator(),
            new String(matrix[0]),
            new String(matrix[1]),
            new String(matrix[2]));
    assertEquals(expected, ReversedSentence.printChar2DArray(matrix));
  }
}