// Test that an IOException is thrown if the input stream does not provide enough bytes.
        // Simulate reading less than 6 bytes.
        when(mockInputStream.read(any(byte[].class), anyInt(), anyInt())).thenReturn(5); // Simulate reading only 5 bytes

        SessionRetargetResponsePacket packet = new SessionRetargetResponsePacket();
        byte[] buffer = new byte[6];

     * Test getting the domain SID.
     *
     * @throws SmbException if the SID string is invalid
     */
    @Test
    void testGetDomainSid() throws SmbException {
        // Create a mock RPC SID to simulate a user SID
        rpc.sid_t rpcSid = new rpc.sid_t();
        rpcSid.revision = 1;
        rpcSid.sub_authority_count = 5; // Fixed: should be 5 for domain SID with RID

        byte[] encodeBufferOut = new byte[1024];
        NdrBuffer dstOut = new NdrBuffer(encodeBufferOut, 0);

        // Simulate info pointer (non-null)
        dstOut.enc_ndr_long(1); // Non-null pointer for info
        info.encode(dstOut); // Encode the info structure

        // Simulate totalentries pointer (non-null)
        dstOut.enc_ndr_long(1); // Non-null pointer for totalentries

    }

    // Test handling of processing exception
    @Test
    public void test_execute_withProcessingException() {
        // Create a mock that returns 0 to simulate processing error
        SearchEngineClient errorClient = new SearchEngineClient() {
            @Override
            public long updateByQuery(String index,

import org.mockito.Mock;
import org.mockito.junit.jupiter.MockitoExtension;

import jcifs.CIFSContext;
import jcifs.Configuration;

/**
 * Integration tests for witness protocol implementation.
 * Uses mock services to simulate witness behavior.
 */
@ExtendWith(MockitoExtension.class)
public class WitnessIntegrationTest {

    @Mock
    private CIFSContext mockContext;

    @Mock
    private Configuration mockConfig;

#define TENSORFLOW_C_EAGER_C_API_REMOTE_TEST_UTIL_H_

// Run a function containing a MatMul op and check its output.
// If heavy_load_on_streaming_rpc is true, send some rpc requests before the one
// which creates a remote input, to simulate a scenario that the remote input
// is not ready when we start running an op or a function.
void TestRemoteExecuteSilentCopies(bool async, bool remote, bool func,
                                   bool heavy_load_on_streaming_rpc,

		"00000000-0000-0000-0000-0000000000f1",
		"00000000-0000-0000-0000-0000000000f2",
	}
	// Simulate overwrite of null version
	newtierfi := tierfi
	newtierfi.SetTierFreeVersionID(fvIDs[0])
	fatalErr(xl.AddFreeVersion(newtierfi))
	report()
	fatalErr(xl.AddVersion(newtierfi))
	report()

	// Simulate removal of null version
	newtierfi.TransitionTier = ""
	newtierfi.TransitionedObjName = ""

		t.Fatal(err)
	}

	// Get object info to capture the ETag
	objInfo, err := obj.GetObjectInfo(ctx, bucket, object, ObjectOptions{})
	if err != nil {
		t.Fatal(err)
	}
	existingETag := objInfo.ETag

	// Simulate read quorum failure by taking enough disks offline
	// With 16 disks (EC 8+8), read quorum is 9. Taking 8 disks offline leaves only 8,
	// which is below read quorum.
	erasureDisks := xl.getDisks()

        SmbTree tree = new SmbTree(session, "testShare", "testService");

        // Mock transport.connect() to succeed
        doNothing().when(transport).connect();

        // Simulate failed tree connect
        doThrow(new SmbException("Connection failed")).when(session).send(any(ServerMessageBlock.class), any(ServerMessageBlock.class));

Then you can use this new class in `response_class=PNGStreamingResponse` in your *path operation function*:

{* ../../docs_src/stream_data/tutorial002_py310.py ln[23:27] hl[23] *}

### Simulate a File { #simulate-a-file }

In this example, we are simulating a file with `io.BytesIO`, which is a file-like object that lives only in memory, but lets us use the same interface.