Testing-Lab/AverageTest.java at master · wsilverio11/Testing-Lab · GitHub

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import junit.framework.TestCase;


public class AverageTest extends TestCase {


  public void testNewAverage() {
    Average avg = new Average ();

    assertEquals(0, avg.getCount());
    assertEquals(0.0, avg.getAverage(), 0.001);
  }

  public void testSingleValue() {
    Average avg = new Average();

    avg.addValue(5.5);

    assertEquals(5.5, avg.getAverage(), 0.001);
    assertEquals(1, avg.getCount());
  }

    public void testFiveValuesNonZeroAverage() {
      Average avg = new Average ();

      avg.addValue(5.5);
      avg.addValue(2.5);
      avg.addValue(3.5);
      avg.addValue(1.5);
      avg.addValue(4.0);

      assertEquals(3.4, avg.getAverage(), 0.001);
      assertEquals(5, avg.getCount());
    }
    public void testFiveValuesZeroAverage() {
      Average avg = new Average ();

      avg.addValue(-1);
      avg.addValue(0);
      avg.addValue(-2);
      avg.addValue(1);
      avg.addValue(2);

      assertEquals(0, avg.getAverage(), 0.001);
      assertEquals(5, avg.getCount());
    }
    public void testFiveValuesSameAverage() {
      Average avg = new Average ();

      avg.addValue(5);
      avg.addValue(5);
      avg.addValue(5);
      avg.addValue(5);
      avg.addValue(5);

      assertEquals(5, avg.getAverage(), 0.001);
      assertEquals(5, avg.getCount());
    }
}