@Test
public void a_failing_screenshot_records_the_error_message() {
Screenshot screenshot =
new Screenshot("step_1.png", "Step 1", 800, new AssertionError("Element not found"));
assertThat(screenshot.getErrorMessage(), is("Element not found"));
}
@Test
public void a_screenshot_without_an_error_message__returns_an_empty_string() {
Screenshot screenshot = new Screenshot("step_1.png", "Step 1", 800);
assertThat(screenshot.getErrorMessage(), is(""));
}