if err != nil {
		t.Fatalf("Stat failed with %s expected to pass.", err)
	}

	// Get umask of the bits stored.
	currentUmask := 0o777 - uint32(st.Mode().Perm())

	// Verify if umask is correct.
	if int(currentUmask) != testCase.expectedUmask {
		t.Fatalf("Umask check failed expected %d, got %d", testCase.expectedUmask, currentUmask)
	}
}

// Tests if the file creations happen with proper umask.

    }

    @Test
    @DisplayName("Test decode reads correct number of bytes")
    void testDecodeReadsCorrectBytes() throws SMBProtocolDecodingException {
        // Prepare test data
        byte[] buffer = new byte[22];

        // Fill with pattern to verify we read correct bytes
        for (int i = 0; i < buffer.length; i++) {
            buffer[i] = (byte) (i + 1);
        }

import org.junit.jupiter.api.DisplayName;
import org.junit.jupiter.api.Test;

@DisplayName("Smb2LeaseKey Tests")
class Smb2LeaseKeyTest {

    @Test
    @DisplayName("Should generate random lease key with correct size")
    void testRandomLeaseKeyGeneration() {
        Smb2LeaseKey key = new Smb2LeaseKey();

        assertNotNull(key.getKey());
        assertEquals(16, key.getKey().length);
        assertFalse(key.isZero());

Verás la documentación automática de la API para la sub-aplicación, incluyendo solo sus propias _path operations_, todas bajo el prefijo correcto del sub-path `/subapi`:

<img src="/img/tutorial/sub-applications/image02.png">

    @BeforeEach
    void setUp() {
        testCache = new TestBufferCacheImpl(5, 1024); // 5 buffers of 1KB each
    }

    @Test
    @DisplayName("BufferCache interface should define correct method signatures")
    void testInterfaceContract() {
        // Given
        BufferCache cache = mockBufferCache;

        // When & Then - verify interface methods exist and can be called

                        + " but there is no POM in this directory (" + session.getExecutionRootDirectory() + ")."
                        + " Please verify you invoked Maven from the correct directory.");
            }

            List<TaskSegment> taskSegments = lifecycleTaskSegmentCalculator.calculateTaskSegments(session);

  }

  private static void assertPutString(char[] chars) {
    Hasher h1 = new NonStreamingVersion().newHasher();
    Hasher h2 = new NonStreamingVersion().newHasher();
    String s = new String(chars);
    // this is the correct implementation of the spec
    for (int i = 0; i < s.length(); i++) {
      h1.putChar(s.charAt(i));
    }
    h2.putUnencodedChars(s);
    assertEquals(h1.hash(), h2.hash());
  }

    assertThat(frameLog(true, 3, 10000, TYPE_DATA, 0x20))
      .isEqualTo("<< 0x00000003 10000 DATA          COMPRESSED")
  }

  /**
   * Ensures that valid flag combinations appear visually correct, and invalid show in hex.  This
   * also demonstrates how sparse the lookup table is.
   */
  @Test
  fun allFormattedFlagsWithValidBits() {

        String inner = s.substring("SmbComLogoffAndX[".length(), s.length() - 1);
        assertFalse(inner.isEmpty(), "inner part of toString should not be empty");
    }

    @Test
    @DisplayName("constructor sets correct command value")
    void constructorSetsCorrectCommand() {
        SmbComLogoffAndX msg = new SmbComLogoffAndX(null);
        assertNotNull(msg, "Message should not be null");
        // SMB_COM_LOGOFF_ANDX = 0x74

You will see the automatic API docs for the sub-application, including only its own _path operations_, all under the correct sub-path prefix `/subapi`:

<img src="/img/tutorial/sub-applications/image02.png">