You can create the *path operations* for that module using `APIRouter`.

### Import `APIRouter` { #import-apirouter }

You import it and create an "instance" the same way you would with the class `FastAPI`:

```Python hl_lines="1  3" title="app/routers/users.py"
{!../../docs_src/bigger_applications/app/routers/users.py!}
```

        }

        @Test
        @DisplayName("Should have initial zero state")
        void shouldHaveInitialZeroState() {
            // Given - newly created instance
            FileFsSizeInformation freshInfo = new FileFsSizeInformation();

            // Then
            assertEquals(0L, freshInfo.getCapacity());
            assertEquals(0L, freshInfo.getFree());

        assertEquals(18, length);
    }

    @Test
    void constructor_withNetbiosNameNotNameInstance_shouldNotCopySrcHashCode() {
        // Create a mock NetbiosName that is not a Name instance
        NetbiosName mockNetbiosName = mock(NetbiosName.class);
        when(mockNetbiosName.getName()).thenReturn("MOCKNAME");
        when(mockNetbiosName.getNameType()).thenReturn(0x20);

 */
@ExtendWith(MockitoExtension.class)
@MockitoSettings(strictness = Strictness.LENIENT)
public class SmbRandomAccessFileTest {

    // Helper: build a minimally wired instance with mocks; avoids real I/O
    private SmbRandomAccessFile newInstance(String mode, boolean smb2, boolean ntSmbsCap, boolean unshared) throws CIFSException {
        SmbFile file = mock(SmbFile.class);

            final KuromojiItem entity = new KuromojiItem(0, StringUtil.EMPTY, StringUtil.EMPTY, StringUtil.EMPTY, StringUtil.EMPTY);
            return OptionalEntity.of(entity);
        case CrudMode.EDIT:
            if (form instanceof EditForm) {
                return ComponentUtil.getComponent(KuromojiService.class).getKuromojiItem(form.dictId, ((EditForm) form).id);
            }
            break;
        default:
            break;

  }

  public void testRowMapValuesAreSorted() {
    sortedTable = create("foo", 1, 'a', "bar", 1, 'b', "foo", 3, 'c', "dog", 2, 'd');
    assertTrue(sortedTable.rowMap().get("foo") instanceof SortedMap);
  }

  public void testColumnKeySet_isSorted() {
    table =
        create(
            "a", 2, 'X', "a", 2, 'X', "b", 3, 'X', "b", 2, 'X', "c", 10, 'X', "c", 10, 'X', "c", 20,

    }

    @Test
    @DisplayName("DelegatingConfiguration should implement Configuration interface")
    void testInterfaceImplementation() {
        // Then
        assertTrue(delegatingConfig instanceof Configuration, "DelegatingConfiguration should implement Configuration interface");
    }

    @Test
    @DisplayName("Delegation should work with different delegate implementations")

    }

    @Override
    public boolean equals(Object obj) {
        if (this == obj) {
            return true;
        }
        if (obj instanceof VersionRange other) {
            return Objects.equals(recommendedVersion, other.recommendedVersion)
                    && Objects.equals(restrictions, other.restrictions);
        } else {
            return false;

            final CharMappingItem entity = new CharMappingItem(0, StringUtil.EMPTY_STRINGS, StringUtil.EMPTY);
            return OptionalEntity.of(entity);
        case CrudMode.EDIT:
            if (form instanceof EditForm) {
                return ComponentUtil.getComponent(CharMappingService.class).getCharMappingItem(form.dictId, ((EditForm) form).id);
            }
            break;
        default:
            break;

                entity.setCreatedBy(username);
                entity.setCreatedTime(currentTime);
                return entity;
            });
        case CrudMode.EDIT:
            if (form instanceof EditForm) {
                return ComponentUtil.getComponent(WebAuthenticationService.class).getWebAuthentication(((EditForm) form).id);
            }
            break;
        default:
            break;