import org.junit.jupiter.api.Test; import static org.hamcrest.MatcherAssert.assertThat; import static org.hamcrest.Matchers.*; class MatrixGrayImageTest { @Test void getWidth() { assertThat(new MatrixGrayImage(0,0).getWidth(), is(equalTo(0))); assertThat(new MatrixGrayImage(10,20).getWidth(), is(equalTo(10))); assertThat(new MatrixGrayImage(400,300).getWidth(), is(equalTo(400))); } @Test void getHeight() { assertThat(new MatrixGrayImage(0,0).getWidth(), is(equalTo(0))); assertThat(new MatrixGrayImage(10,20).getWidth(), is(equalTo(20))); assertThat(new MatrixGrayImage(400,300).getWidth(), is(equalTo(300))); } }