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diff --git a/tools/test/misc/vds/UC_2.h b/tools/test/misc/vds/UC_2.h
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+/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
+ * Copyright by The HDF Group.                                               *
+ * All rights reserved.                                                      *
+ *                                                                           *
+ * This file is part of HDF5.  The full HDF5 copyright notice, including     *
+ * terms governing use, modification, and redistribution, is contained in    *
+ * the COPYING file, which can be found at the root of the source code       *
+ * distribution tree, or in https://www.hdfgroup.org/licenses.               *
+ * If you do not have access to either file, you may request a copy from     *
+ * help@hdfgroup.org.                                                        *
+ * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
+
+#ifndef UC_2_H
+#define UC_2_H
+
+#include "hdf5.h"
+
+/*
+ * Definitions for VDS use case 2
+ *
+ * Datasets have a single unlimited dimension and two fixed dimensions. They
+ * are mapped along two dimensions in the VDS with no gaps between them.
+ */
+
+/* virtual dataset <---> source dataset mapping and sizes
+
+   **********************************
+   *       A       *                *
+   *****************        D       *
+   *               *                *
+   *       B       *                *
+   *               ******************
+   *****************        E       *
+   *       C       *                *
+   **********************************
+
+
+        dim[0]
+       /
+      /
+     /
+    -----> dim[2]
+    |
+    |
+    |
+   dim[1]
+
+ */
+
+#define UC_2_N_SOURCES 5
+
+/* Dataset dimensions */
+#define UC_2_A_HEIGHT    2
+#define UC_2_B_HEIGHT    4
+#define UC_2_AB_HEIGHT   6 /* For hyperslab start position */
+#define UC_2_C_HEIGHT    2
+#define UC_2_D_HEIGHT    5
+#define UC_2_E_HEIGHT    3
+#define UC_2_FULL_HEIGHT 8 /* A+B+C and D+E */
+#define UC_2_WIDTH       7
+#define UC_2_FULL_WIDTH  14 /* 2*width */
+
+#define UC_2_N_PLANES_IN_SERIES 3             /* number of planes in a series of sub-images */
+#define UC_2_N_MAX_PLANES       H5S_UNLIMITED /* max number of planes */
+#define UC_2_N_TEST_PLANES      6             /* number of planes we write */
+
+/* Dataset datatypes */
+#define UC_2_SOURCE_DATATYPE H5T_STD_I32LE
+#define UC_2_VDS_DATATYPE    H5T_STD_I32LE
+
+/* Starting size of datasets, both source and VDS */
+static hsize_t UC_2_DIMS[UC_2_N_SOURCES][RANK] = {{0, UC_2_A_HEIGHT, UC_2_WIDTH},
+                                                  {0, UC_2_B_HEIGHT, UC_2_WIDTH},
+                                                  {0, UC_2_C_HEIGHT, UC_2_WIDTH},
+                                                  {0, UC_2_D_HEIGHT, UC_2_WIDTH},
+                                                  {0, UC_2_E_HEIGHT, UC_2_WIDTH}};
+
+/* Maximum size of datasets, both source and VDS */
+static hsize_t UC_2_MAX_DIMS[UC_2_N_SOURCES][RANK] = {{UC_2_N_MAX_PLANES, UC_2_A_HEIGHT, UC_2_WIDTH},
+                                                      {UC_2_N_MAX_PLANES, UC_2_B_HEIGHT, UC_2_WIDTH},
+                                                      {UC_2_N_MAX_PLANES, UC_2_C_HEIGHT, UC_2_WIDTH},
+                                                      {UC_2_N_MAX_PLANES, UC_2_D_HEIGHT, UC_2_WIDTH},
+                                                      {UC_2_N_MAX_PLANES, UC_2_E_HEIGHT, UC_2_WIDTH}};
+
+/* File names for source datasets */
+static char UC_2_FILE_NAMES[UC_2_N_SOURCES][NAME_LEN] = {
+    {"2_a.h5"}, {"2_b.h5"}, {"2_c.h5"}, {"2_d.h5"}, {"2_e.h5"}};
+
+/* VDS file name */
+#define UC_2_VDS_FILE_NAME "2_vds.h5"
+
+/* Dataset names */
+#define UC_2_SOURCE_DSET_NAME "source_dset"
+#define UC_2_SOURCE_DSET_PATH "/source_dset"
+#define UC_2_VDS_DSET_NAME    "vds_dset"
+
+#endif /* UC_2_H */