public static HealthStateScope forMaterial(Material material) {
        return new HealthStateScope(ScopeType.MATERIAL, material.getAttributesForScope().toString());
    }
@Test
    public void shouldHaveDifferentScopeForDifferentMaterials() {
        HealthStateScope scope1 = HealthStateScope.forMaterial(MATERIAL1);
        HealthStateScope scope2 = HealthStateScope.forMaterial(MATERIAL2);
        assertThat(scope1, not(scope2));
    }