From e66bf948a7acba0ddc76239f6d02f17c8b10eb0f Mon Sep 17 00:00:00 2001
From: Dana Robinson <derobins@hdfgroup.org>
Date: Fri, 26 Apr 2019 12:10:54 -0700
Subject: Fix for split VFD and file cleanup when testing H5Fis_hdf5 and
 H5Fis_accessible in tfile.c.

---
 test/h5test.c | 30 ++++++++++++++++++++++++++----
 test/tfile.c  |  6 ++++++
 2 files changed, 32 insertions(+), 4 deletions(-)

diff --git a/test/h5test.c b/test/h5test.c
index 3b17c72..dba8cf7 100644
--- a/test/h5test.c
+++ b/test/h5test.c
@@ -574,6 +574,7 @@ h5_fixname_real(const char *base_name, hid_t fapl, const char *_suffix,
     char *fullname, size_t size, hbool_t nest_printf, hbool_t subst_for_superblock)
 {
     const char     *prefix = NULL;
+    const char     *env = NULL;    /* HDF5_DRIVER environment variable     */
     char           *ptr, last = '\0';
     const char     *suffix = _suffix;
     size_t          i, j;
@@ -598,10 +599,31 @@ h5_fixname_real(const char *base_name, hid_t fapl, const char *_suffix,
                     suffix = nest_printf ? "%%05d.h5" : "%05d.h5";
             }
             else if (H5FD_MULTI == driver) {
-                if(subst_for_superblock)
-                    suffix = "-s.h5";
-                else
-                    suffix = NULL;
+
+                /* Get the environment variable, if it exists, in case
+                 * we are using the split driver since both of those
+                 * use the multi VFD under the hood.
+                 */
+                env = HDgetenv("HDF5_DRIVER");
+#ifdef HDF5_DRIVER
+                /* Use the environment variable, then the compile-time constant */
+                if(!env)
+                    env = HDF5_DRIVER;
+#endif
+                if(!HDstrcmp(env, "split")) {
+                    /* split VFD */
+                    if(subst_for_superblock)
+                        suffix = "-m.h5";
+                    else
+                        suffix = NULL;
+                }
+                else {
+                    /* multi VFD */
+                    if(subst_for_superblock)
+                        suffix = "-s.h5";
+                    else
+                        suffix = NULL;
+                }
             }
         }
     }
diff --git a/test/tfile.c b/test/tfile.c
index adeec94..695d437 100644
--- a/test/tfile.c
+++ b/test/tfile.c
@@ -1715,6 +1715,9 @@ test_file_is_accessible(const char *env_h5_drvr)
     VERIFY(is_hdf5, FALSE, "H5Fis_accessible (non-HDF5 file)");
 
 
+    /* Clean up files */
+    h5_delete_test_file(filename, fapl_id);
+
     /* Close property list */
     ret = H5Pclose(fapl_id);
     CHECK(ret, FAIL, "H5Pclose");
@@ -1837,6 +1840,9 @@ test_file_ishdf5(const char *env_h5_drvr)
     VERIFY(is_hdf5, FALSE, "H5Fis_hdf5");
 
 
+    /* Clean up files */
+    h5_delete_test_file(filename, fapl_id);
+
     /* Close property list */
     ret = H5Pclose(fapl_id);
     CHECK(ret, FAIL, "H5Pclose");
-- 
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