Beginner in Java using JUnit to test an ArrayList size

Question

    @Test
    @DisplayName("Get all Points in Shape is working and gets the correct number output")
    public void test_Get_All_Points_On_Shape()
    {
        ArrayList<Point> points = new ArrayList<Point>(Arrays.asList(new Point[4]));
        assertEquals(points.size() == 4);
    }

the above code gives an error

The method assertEquals(short, short) in the type Assertions is not applicable for the arguments (boolean)

How to resolve this problem?

Answer 1

Either you use

assertTrue(points.size() == 4);

or

assertEquals(4, points.size());

Answer 2

If you use assertThat() from org.assertj.core.api.AssertionsForClassTypes.assertThat or from org.assertj.core.api.Assertions.assertThat

then you can use:

assertThat(points).hasSize(4);