*/
    private SmbResource createMockResource() {
        return mock(SmbResource.class);
    }

    @BeforeEach
    void setUp() {
        // Reset mocks to ensure clean state for each test
        reset(mockResource, mockLocator, mockContext);
    }

    @Nested
    @DisplayName("Interface Contract Tests")
    class InterfaceContractTests {

        @Test

* and from it, import the function `get_token_header`.

But that file doesn't exist, our dependencies are in a file at `app/dependencies.py`.

Remember how our app/file structure looks like:

<img src="/img/tutorial/bigger-applications/package.drawio.svg">

---

The two dots `..`, like in:

```Python
from ..dependencies import get_token_header
```

mean:

                        }

                        if (dfd == null || !dfd.isValid()) {
                            // don't reopen the file for every round if it's not necessary, keep the lock
                            dfd = openCopyTargetFile(dest, src.getAttributes(), !write);
                        }

      case SATISFIED_BEFORE_WAITING:
        guard.setSatisfied(true);
        break;
      case SATISFIED_WHILE_WAITING:
        guard.setSatisfied(false);
        enterSatisfyGuardAndLeaveInAnotherThread(); // enter blocks until we call waitFor
        break;
      case UNSATISFIED_BEFORE_AND_WHILE_WAITING:
        guard.setSatisfied(false);
        break;
      case SATISFIED_AND_INTERRUPTED_BEFORE_WAITING:

        @Test
        @DisplayName("Should handle typical Linux ext4 configuration")
        void shouldHandleTypicalExt4Configuration() throws SMBProtocolDecodingException {
            // Given - typical ext4: 4KB blocks
            long totalBlocks = 26214400L; // 100GB / 4KB
            long freeBlocks = 5242880L; // 20GB / 4KB

            ByteBuffer buffer = ByteBuffer.allocate(32);
            buffer.order(ByteOrder.LITTLE_ENDIAN);

                    response.adjustOffset(n);
                }

            } while (len > effectiveBlockSize && n == r);

            // Optimization: Continue reading if we have small remaining data and got full blocks
            // This reduces round trips for slightly larger reads
            if (len > 0 && len <= (effectiveBlockSize / 4) && n == r) {
                try {
                    if (th.isSMB2()) {

        void testStaticToByteArrayNull() {
            assertThrows(NullPointerException.class, () -> SID.toByteArray(null));
        }
    }

    @Nested
    @DisplayName("Tests requiring mocks")
    @ExtendWith(MockitoExtension.class)
    class MockedTests {
        @Mock
        CIFSContext mockCtx;

        @Mock
        SidResolver mockResolver;

        @BeforeEach

	MediumBlock = 128 * humanize.KiByte // Default r/w block size for medium sized objects.
	LargeBlock  = 1 * humanize.MiByte   // Default r/w block size for normal objects.
)

// AlignedBytePool is a pool of fixed size aligned blocks
type AlignedBytePool struct {
	size int
	p    bpool.Pool[*[]byte]
}

// NewAlignedBytePool creates a new pool with the specified size.
func NewAlignedBytePool(sz int) *AlignedBytePool {

import java.util.Locale;
import java.util.concurrent.TimeUnit;
import org.jspecify.annotations.Nullable;

/**
 * A rate limiter. Conceptually, a rate limiter distributes permits at a configurable rate. Each
 * {@link #acquire()} blocks if necessary until a permit is available, and then takes it. Once
 * acquired, permits need not be released.
 *
 * <p>{@code RateLimiter} is safe for concurrent use: It will restrict the total rate of calls from

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