/**
     * {@inheritDoc}
     *
     * @see jcifs.CIFSContext#close()
     */
    @Override
    public boolean close() throws CIFSException {
        boolean inUse = super.close();
        inUse |= this.transportPool.close();
        return inUse;
    }

    @ParameterizedTest
    @DisplayName("isInUse reflects current mocked state")
    @ValueSource(booleans = { true, false })
    void isInUse_variants(boolean inUse) {
        when(session.isInUse()).thenReturn(inUse);

        boolean result = session.isInUse();

        assertEquals(inUse, result);
        verify(session, times(1)).isInUse();
    }

    // Happy path + edge: getSessionKey returns bytes, empty and null
    @Test

     *
     * @param hard if true, force immediate disconnection
     * @param inuse whether the connection is currently in use
     * @return whether the connection was in use
     * @throws IOException if an I/O error occurs during disconnection
     */
    boolean disconnect(boolean hard, boolean inuse) throws IOException;

    /**
     * Ensures the transport is connected to the remote server.
     *

    }

    @Override
    public boolean isDisconnected() {
        return delegate.isDisconnected();
    }

    @Override
    public boolean disconnect(boolean hard, boolean inuse) throws IOException {
        synchronized (connectionLock) {
            if (rdmaConnection != null) {
                try {
                    rdmaConnection.close();
                } catch (Exception e) {

	Get(ctx context.Context, object string, rv remoteVersionID, opts WarmBackendGetOpts) (io.ReadCloser, error)
	Remove(ctx context.Context, object string, rv remoteVersionID) error
	InUse(ctx context.Context) (bool, error)
}

const probeObject = "probeobject"

// checkWarmBackend checks if tier config credentials have sufficient privileges
// to perform all operations defined in the WarmBackend interface.

	if rv != "" {
		ropts.VersionID = string(rv)
	}
	err := s3.client.RemoveObject(ctx, s3.Bucket, s3.getDest(object), ropts)
	return s3.ToObjectError(err, object)
}

func (s3 *warmBackendS3) InUse(ctx context.Context) (bool, error) {
	result, err := s3.core.ListObjectsV2(s3.Bucket, s3.Prefix, "", "", slashSeparator, 1)
	if err != nil {
		return false, s3.ToObjectError(err)
	}

            if (connectFails) {
                throw new IOException("Connect failed");
            }
        }

        @Override
        protected boolean doDisconnect(boolean hard, boolean inUse) throws IOException {
            return disconnectResult;
        }

        // Test control methods
        public void setState(int state) {
            this.state = state;
        }

	_, err := az.clnt.DeleteBlob(ctx, az.Bucket, az.getDest(object), &azblob.DeleteBlobOptions{})
	return azureToObjectError(err, az.Bucket, az.getDest(object))
}

func (az *warmBackendAzure) InUse(ctx context.Context) (bool, error) {
	maxResults := int32(1)
	pager := az.clnt.NewListBlobsFlatPager(az.Bucket, &azblob.ListBlobsFlatOptions{
		Prefix:     &az.Prefix,
		MaxResults: &maxResults,
	})

	err := gcs.client.Bucket(gcs.Bucket).Object(gcs.getDest(key)).Delete(ctx)
	return gcsToObjectError(err, gcs.Bucket, key)
}

func (gcs *warmBackendGCS) InUse(ctx context.Context) (bool, error) {
	it := gcs.client.Bucket(gcs.Bucket).Objects(ctx, &storage.Query{
		Delimiter: "/",
		Prefix:    gcs.Prefix,
		Versions:  false,
	})
	pager := iterator.NewPager(it, 1, "")

	AssertEqual(t, ok, true)
	AssertEqual(t, len(conn.Stmts.Keys()), 2)
	for _, stmt := range conn.Stmts.Keys() {
		if stmt == "" {
			t.Fatalf("stmt cannot bee nil")
		}
	}

	AssertEqual(t, sqlDB.Stats().InUse, 0)
}

func TestPreparedStmtInTransaction(t *testing.T) {
	user := User{Name: "jinzhu"}

	if err := DB.Transaction(func(tx *gorm.DB) error {
		tx.Session(&gorm.Session{PrepareStmt: true}).Create(&user)