@Test(expectedExceptions = IllegalStateException.class)
public void testSetErasableFailsWhenDefaultCategoryAndErasable() {
Category category = Category.defaultCategory("Test");
category.setErasable(true); // This should fail
}
@Test
public void testSetErasableSuceedsWhenDefaultCategoryAndNotErasable() {
Category category = Category.defaultCategory("Test");
category.setErasable(false); // This should work
assertFalse(category.isErasable());
}