Merge pull request #2203 in HDFFV/hdf5 from ~LRKNOX/hdf5_lrk:1.10/master to 1.10/masterhdf5-1_10_6

* commit 'e0fa36bfe008c03365ce8ea94d705f8fdebccdf0': (166 commits)
  Update release date strings in README.txt and release_docs/RELEASE.txt
  Add release note about using ompio instead of romio when collective writes fail with OpenMPI.
  Fixed typos, grammatical errors, etc. Expanded entry for S3 and HDFS VFDs. Moved Mac 10.11 and 10.12 from Supported Platforms to More Platforms Tested.
  Add qualification to RELEASE.txt regarding performance improvements
  Standalone doesn't use h5test implementation.
  Add missing note
  Update COPYING file with new HDF5 license.
  Update bin/config.guess and config.sub to current version available from git.savannah.gnu.org.
  Fix include to correct memory calls - big-endian issue.
  Revert BLDLIBDIR value in junit.sh.in.
  Corrections to CMake functions
  Update version for HDF5 1.10.6 release. Remove autom4te.cache directory that shouldn't have been added.
  Remove duplicate instance
  Fix merge issue
  HDFFV-10979 - fix global name clash
  Correct clang search and java include
  Latest date first in RELEASE.txt
  Update RELEASE.txt with performance improvements and Steven Varga's bugfix.
  Update version numbers for shared lib files according to api compatibility report.
  Created hdf5_1_10_6 branch for HDF5 1.10.6 release preparation. Set version to 1.10.6-pre1. Switched default  maintainer mode to disabled and default build mode to production. Added files produced by autogen.sh to commit except for src/H5config.h.in~ and src/H5public.h~.
  ...

1 files changed, 1937 insertions, 0 deletions

diff --git a/test/ros3.c b/test/ros3.c
new file mode 100644
index 0000000..73b6ac2
--- /dev/null
+++ b/test/ros3.c
@@ -0,0 +1,1937 @@
+/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
+ * 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://support.hdfgroup.org/ftp/HDF5/releases.  *
+ * If you do not have access to either file, you may request a copy from     *
+ * help@hdfgroup.org.                                                        *
+ * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
+
+/*
+ * Read-Only S3 Virtual File Driver (VFD)
+ *
+ * Purpose:
+ *
+ *     Verify behavior for Read-Only S3 VFD
+ *     at the VFL (virtual file layer) level.
+ *
+ *     Demonstrates basic use cases and fapl/dxpl interaction.
+ *
+ * Programmer: Jacob Smith <jake.smith@hdfgroup.org>
+ *             2017-10-11
+ */
+
+#include "h5test.h"
+
+#include "H5FDprivate.h" /* Virtual File Driver utilities */
+#include "H5FDros3.h"    /* this file driver's utilities */
+#include "H5FDs3comms.h" /* for loading of credentials */
+
+#ifdef H5_HAVE_ROS3_VFD
+
+/* only include the testing macros if needed */
+
+/*****************************************************************************
+ *
+ * FILE-LOCAL TESTING MACROS
+ *
+ * Purpose:
+ *
+ *     1) Upon test failure, goto-jump to single-location teardown in test
+ *        function. E.g., `error:` (consistency with HDF corpus) or
+ *        `failed:` (reflects purpose).
+ *            >>> using "error", in part because `H5E_BEGIN_TRY` expects it.
+ *     2) Increase clarity and reduce overhead found with `TEST_ERROR`.
+ *        e.g., "if(somefunction(arg, arg2) < 0) TEST_ERROR:"
+ *        requires reading of entire line to know whether this if/call is
+ *        part of the test setup, test operation, or a test unto itself.
+ *     3) Provide testing macros with optional user-supplied failure message;
+ *        if not supplied (NULL), generate comparison output in the spirit of
+ *        test-driven development. E.g., "expected 5 but was -3"
+ *        User messages clarify test's purpose in code, encouraging description
+ *        without relying on comments.
+ *     4) Configurable expected-actual order in generated comparison strings.
+ *        Some prefer `VERIFY(expected, actual)`, others
+ *        `VERIFY(actual, expected)`. Provide preprocessor ifdef switch
+ *        to satifsy both parties, assuming one paradigm per test file.
+ *        (One could #undef and redefine the flag through the file as desired,
+ *         but _why_.)
+ *
+ *     Provided as courtesy, per consideration for inclusion in the library
+ *     proper.
+ *
+ *     Macros:
+ *
+ *         JSVERIFY_EXP_ACT - ifdef flag, configures comparison order
+ *         FAIL_IF()        - check condition
+ *         FAIL_UNLESS()    - check _not_ condition
+ *         JSVERIFY()       - long-int equality check; prints reason/comparison
+ *         JSVERIFY_NOT()   - long-int inequality check; prints
+ *         JSVERIFY_STR()   - string equality check; prints
+ *
+ * Programmer: Jacob Smith
+ *             2017-10-24
+ *
+ *****************************************************************************/
+
+
+/*----------------------------------------------------------------------------
+ *
+ * ifdef flag: JSVERIFY_EXP_ACT
+ *
+ * JSVERIFY macros accept arguments as (EXPECTED, ACTUAL[, reason])
+ *   default, if this is undefined, is (ACTUAL, EXPECTED[, reason])
+ *
+ *----------------------------------------------------------------------------
+ */
+#define JSVERIFY_EXP_ACT 1L
+
+
+/*----------------------------------------------------------------------------
+ *
+ * Macro: JSFAILED_AT()
+ *
+ * Purpose:
+ *
+ *     Preface a test failure by printing "*FAILED*" and location to stdout
+ *     Similar to `H5_FAILED(); AT();` from h5test.h
+ *
+ *     *FAILED* at somefile.c:12 in function_name()...
+ *
+ * Programmer: Jacob Smith
+ *             2017-10-24
+ *
+ *----------------------------------------------------------------------------
+ */
+#define JSFAILED_AT() {                                                   \
+    HDprintf("*FAILED* at %s:%d in %s()...\n", __FILE__, __LINE__, FUNC); \
+}
+
+
+/*----------------------------------------------------------------------------
+ *
+ * Macro: FAIL_IF()
+ *
+ * Purpose:
+ *
+ *     Make tests more accessible and less cluttered than
+ *         `if (thing == otherthing()) TEST_ERROR`
+ *         paradigm.
+ *
+ *     The following lines are roughly equivalent:
+ *
+ *         `if (myfunc() < 0) TEST_ERROR;` (as seen elsewhere in HDF tests)
+ *         `FAIL_IF(myfunc() < 0)`
+ *
+ *     Prints a generic "FAILED AT" line to stdout and jumps to `error`,
+ *     similar to `TEST_ERROR` in h5test.h
+ *
+ * Programmer: Jacob Smith
+ *             2017-10-23
+ *
+ *----------------------------------------------------------------------------
+ */
+#define FAIL_IF(condition) \
+if (condition) {           \
+    JSFAILED_AT()          \
+    goto error;           \
+}
+
+
+/*----------------------------------------------------------------------------
+ *
+ * Macro: FAIL_UNLESS()
+ *
+ * Purpose:
+ *
+ *     TEST_ERROR wrapper to reduce cognitive overhead from "negative tests",
+ *     e.g., "a != b".
+ *
+ *     Opposite of FAIL_IF; fails if the given condition is _not_ true.
+ *
+ *     `FAIL_IF( 5 != my_op() )`
+ *     is equivalent to
+ *     `FAIL_UNLESS( 5 == my_op() )`
+ *     However, `JSVERIFY(5, my_op(), "bad return")` may be even clearer.
+ *         (see JSVERIFY)
+ *
+ * Programmer: Jacob Smith
+ *             2017-10-24
+ *
+ *----------------------------------------------------------------------------
+ */
+#if 0 /* UNUSED */
+#define FAIL_UNLESS(condition) \
+if (!(condition)) {            \
+    JSFAILED_AT()              \
+    goto error;                \
+}
+#endif
+
+
+/*----------------------------------------------------------------------------
+ *
+ * Macro: JSERR_LONG()
+ *
+ * Purpose:
+ *
+ *     Print an failure message for long-int arguments.
+ *     ERROR-AT printed first.
+ *     If `reason` is given, it is printed on own line and newlined after
+ *     else, prints "expected/actual" aligned on own lines.
+ *
+ *     *FAILED* at myfile.c:488 in somefunc()...
+ *     forest must be made of trees.
+ *
+ *     or
+ *
+ *     *FAILED* at myfile.c:488 in somefunc()...
+ *       ! Expected 425
+ *       ! Actual   3
+ *
+ * Programmer: Jacob Smith
+ *             2017-10-24
+ *
+ *----------------------------------------------------------------------------
+ */
+#define JSERR_LONG(expected, actual, reason) {           \
+    JSFAILED_AT()                                        \
+    if (reason!= NULL) {                                 \
+        HDprintf("%s\n", (reason));                      \
+    } else {                                             \
+        HDprintf("  ! Expected %ld\n  ! Actual   %ld\n", \
+                  (long)(expected), (long)(actual));     \
+    }                                                    \
+}
+
+
+/*----------------------------------------------------------------------------
+ *
+ * Macro: JSERR_STR()
+ *
+ * Purpose:
+ *
+ *     Print an failure message for string arguments.
+ *     ERROR-AT printed first.
+ *     If `reason` is given, it is printed on own line and newlined after
+ *     else, prints "expected/actual" aligned on own lines.
+ *
+ *     *FAILED*  at myfile.c:421 in myfunc()...
+ *     Blue and Red strings don't match!
+ *
+ *     or
+ *
+ *     *FAILED*  at myfile.c:421 in myfunc()...
+ *     !!! Expected:
+ *     this is my expected
+ *     string
+ *     !!! Actual:
+ *     not what I expected at all
+ *
+ * Programmer: Jacob Smith
+ *             2017-10-24
+ *
+ *----------------------------------------------------------------------------
+ */
+#define JSERR_STR(expected, actual, reason) {           \
+    JSFAILED_AT()                                       \
+    if ((reason) != NULL) {                             \
+        HDprintf("%s\n", (reason));                     \
+    } else {                                            \
+        HDprintf("!!! Expected:\n%s\n!!!Actual:\n%s\n", \
+                 (expected), (actual));                 \
+    }                                                   \
+}
+
+
+
+#ifdef JSVERIFY_EXP_ACT
+
+
+/*----------------------------------------------------------------------------
+ *
+ * Macro: JSVERIFY()
+ *
+ * Purpose:
+ *
+ *     Verify that two long integers are equal.
+ *     If unequal, print failure message
+ *     (with `reason`, if not NULL; expected/actual if NULL)
+ *     and jump to `error` at end of function
+ *
+ * Programmer: Jacob Smith
+ *             2017-10-24
+ *
+ *----------------------------------------------------------------------------
+ */
+#define JSVERIFY(expected, actual, reason)     \
+if ((long)(actual) != (long)(expected)) {      \
+    JSERR_LONG((expected), (actual), (reason)) \
+    goto error;                                \
+} /* JSVERIFY */
+
+
+/*----------------------------------------------------------------------------
+ *
+ * Macro: JSVERIFY_NOT()
+ *
+ * Purpose:
+ *
+ *     Verify that two long integers are _not_ equal.
+ *     If equal, print failure message
+ *     (with `reason`, if not NULL; expected/actual if NULL)
+ *     and jump to `error` at end of function
+ *
+ * Programmer: Jacob Smith
+ *             2017-10-24
+ *
+ *----------------------------------------------------------------------------
+ */
+#define JSVERIFY_NOT(expected, actual, reason) \
+if ((long)(actual) == (long)(expected)) {      \
+    JSERR_LONG((expected), (actual), (reason)) \
+    goto error;                                \
+} /* JSVERIFY_NOT */
+
+
+/*----------------------------------------------------------------------------
+ *
+ * Macro: JSVERIFY_STR()
+ *
+ * Purpose:
+ *
+ *     Verify that two strings are equal.
+ *     If unequal, print failure message
+ *     (with `reason`, if not NULL; expected/actual if NULL)
+ *     and jump to `error` at end of function
+ *
+ * Programmer: Jacob Smith
+ *             2017-10-24
+ *
+ *----------------------------------------------------------------------------
+ */
+#define JSVERIFY_STR(expected, actual, reason) \
+if (strcmp((actual), (expected)) != 0) {       \
+    JSERR_STR((expected), (actual), (reason)); \
+    goto error;                                \
+} /* JSVERIFY_STR */
+
+
+#else
+/* JSVERIFY_EXP_ACT not defined
+ *
+ * Repeats macros above, but with actual/expected parameters reversed.
+ */
+
+
+/*----------------------------------------------------------------------------
+ * Macro: JSVERIFY()
+ * See: JSVERIFY documentation above.
+ * Programmer: Jacob Smith
+ *             2017-10-14
+ *----------------------------------------------------------------------------
+ */
+#define JSVERIFY(actual, expected, reason)      \
+if ((long)(actual) != (long)(expected)) {       \
+    JSERR_LONG((expected), (actual), (reason)); \
+    goto error;                                 \
+} /* JSVERIFY */
+
+
+/*----------------------------------------------------------------------------
+ * Macro: JSVERIFY_NOT()
+ * See: JSVERIFY_NOT documentation above.
+ * Programmer: Jacob Smith
+ *             2017-10-14
+ *----------------------------------------------------------------------------
+ */
+#define JSVERIFY_NOT(actual, expected, reason) \
+if ((long)(actual) == (long)(expected)) {      \
+    JSERR_LONG((expected), (actual), (reason)) \
+    goto error;                                \
+} /* JSVERIFY_NOT */
+
+
+/*----------------------------------------------------------------------------
+ * Macro: JSVERIFY_STR()
+ * See: JSVERIFY_STR documentation above.
+ * Programmer: Jacob Smith
+ *             2017-10-14
+ *----------------------------------------------------------------------------
+ */
+#define JSVERIFY_STR(actual, expected, reason) \
+if (strcmp((actual), (expected)) != 0) {       \
+    JSERR_STR((expected), (actual), (reason)); \
+    goto error;                                \
+} /* JSVERIFY_STR */
+
+#endif /* ifdef/else JSVERIFY_EXP_ACT */
+
+/********************************
+ * OTHER MACROS AND DEFINITIONS *
+ ********************************/
+
+#define MAXADDR (((haddr_t)1<<(8*sizeof(HDoff_t)-1))-1)
+
+#define S3_TEST_PROFILE_NAME "ros3_vfd_test"
+
+#define S3_TEST_MAX_URL_SIZE 256
+
+#define S3_TEST_RESOURCE_TEXT_RESTRICTED "t8.shakespeare.txt"
+#define S3_TEST_RESOURCE_TEXT_PUBLIC "Poe_Raven.txt"
+#define S3_TEST_RESOURCE_H5_PUBLIC "GMODO-SVM01.h5"
+#define S3_TEST_RESOURCE_MISSING "missing.csv"
+
+static char    url_text_restricted[S3_TEST_MAX_URL_SIZE] = "";
+static char    url_text_public[S3_TEST_MAX_URL_SIZE]     = "";
+static char    url_h5_public[S3_TEST_MAX_URL_SIZE]       = "";
+static char    url_missing[S3_TEST_MAX_URL_SIZE]         = "";
+static char    s3_test_bucket_url[S3_TEST_MAX_URL_SIZE]  = "";
+static hbool_t s3_test_bucket_defined                    = FALSE;
+
+/* Global variables for aws test profile.
+ * An attempt is made to read ~/.aws/credentials and ~/.aws/config upon test
+ * startup -- if unable to open either file or cannot load region, id, and key,
+ * tests connecting with S3 will not be run
+ */
+static int  s3_test_credentials_loaded = 0;
+static char s3_test_aws_region[16];
+static char s3_test_aws_access_key_id[64];
+static char s3_test_aws_secret_access_key[128];
+
+H5FD_ros3_fapl_t restricted_access_fa = {
+            H5FD_CURR_ROS3_FAPL_T_VERSION, /* fapl version      */
+            TRUE,                           /* authenticate      */
+            "",             /* aws region        */
+            "",      /* access key id     */
+            ""}; /* secret access key */
+
+H5FD_ros3_fapl_t anonymous_fa = {
+            H5FD_CURR_ROS3_FAPL_T_VERSION,
+            FALSE, "", "", "" };
+
+
+/*---------------------------------------------------------------------------
+ *
+ * Function: test_fapl_config_validation()
+ *
+ * Purpose:
+ *
+ *     Test data consistency of fapl configuration.
+ *     Tests `H5FD_ros3_validate_config` indirectly through `H5Pset_fapl_ros3`.
+ *
+ * Return:
+ *
+ *     PASSED : 0
+ *     FAILED : 1
+ *
+ * Programmer: Jacob Smith
+ *             2017-10-23
+ *
+ *---------------------------------------------------------------------------
+ */
+static int
+test_fapl_config_validation(void)
+{
+
+    /*********************
+     * test-local macros *
+     *********************/
+
+    /*************************
+     * test-local structures *
+     *************************/
+
+    struct testcase {
+        const char       *msg;
+        herr_t            expected;
+        H5FD_ros3_fapl_t  config;
+    };
+
+    /************************
+     * test-local variables *
+     ************************/
+
+    hid_t            fapl_id     = -1;   /* file access property list ID */
+    H5FD_ros3_fapl_t config;
+    H5FD_ros3_fapl_t fa_fetch;
+    herr_t           success     = SUCCEED;
+    unsigned int     i           = 0;
+    unsigned int     ncases      = 8;    /* should equal number of cases */
+    struct testcase *case_ptr    = NULL; /* dumb work-around for possible     */
+                                         /* dynamic cases creation because    */
+                                         /* of compiler warnings Wlarger-than */
+    struct testcase  cases_arr[] = {
+        {   "non-authenticating config allows empties.\n",
+            SUCCEED,
+            {   H5FD_CURR_ROS3_FAPL_T_VERSION, /* version      */
+                FALSE,                          /* authenticate */
+                "",                             /* aws_region   */
+                "",                             /* secret_id    */
+                "",                             /* secret_key   */
+            },
+        },
+        {   "authenticating config asks for populated strings.\n",
+            FAIL,
+            {   H5FD_CURR_ROS3_FAPL_T_VERSION,
+                TRUE,
+                "",
+                "",
+                "",
+            },
+        },
+        {   "populated strings; key is the empty string?\n",
+            SUCCEED,
+            {   H5FD_CURR_ROS3_FAPL_T_VERSION,
+                TRUE,
+                "region",
+                "me",
+                "",
+            },
+        },
+        {   "id cannot be empty.\n",
+            FAIL,
+            {   H5FD_CURR_ROS3_FAPL_T_VERSION,
+                TRUE,
+                "",
+                "me",
+                "",
+            },
+        },
+        {   "region cannot be empty.\n",
+            FAIL,
+            {   H5FD_CURR_ROS3_FAPL_T_VERSION,
+                TRUE,
+                "where",
+                "",
+                "",
+            },
+        },
+        {   "all strings populated.\n",
+            SUCCEED,
+            {   H5FD_CURR_ROS3_FAPL_T_VERSION,
+                TRUE,
+                "where",
+                "who",
+                "thisIsA GREAT seeeecrit",
+            },
+        },
+        {   "incorrect version should fail\n",
+            FAIL,
+            {   12345,
+                FALSE,
+                "",
+                "",
+                "",
+            },
+        },
+        {   "non-authenticating config cares not for (de)population"
+            "of strings.\n",
+            SUCCEED,
+            {   H5FD_CURR_ROS3_FAPL_T_VERSION,
+                FALSE,
+                "someregion",
+                "someid",
+                "somekey",
+            },
+        },
+    };
+
+    TESTING("ROS3 fapl configuration validation");
+
+    /*********
+     * TESTS *
+     *********/
+
+    if (FALSE == s3_test_bucket_defined) {
+        SKIPPED();
+        puts("    environment variable HDF5_ROS3_TEST_BUCKET_URL not defined");
+        fflush(stdout);
+        return 0;
+    }
+
+    for (i = 0; i < ncases; i++) {
+
+        /*---------------
+         * per-test setup
+         *---------------
+         */
+        case_ptr = &cases_arr[i];
+        fapl_id = H5Pcreate(H5P_FILE_ACCESS);
+        FAIL_IF( fapl_id < 0 ) /* sanity-check */
+
+        /*-----------------------------------
+         * Actually test.
+         * Mute stack trace in failure cases.
+         *-----------------------------------
+         */
+        H5E_BEGIN_TRY {
+            /* `H5FD_ros3_validate_config(...)` is static/private
+             * to src/ros3.c and cannot (and should not?) be tested directly?
+             * Instead, validate config through public api.
+             */
+            success = H5Pset_fapl_ros3(fapl_id, &case_ptr->config);
+        } H5E_END_TRY;
+
+        JSVERIFY( case_ptr->expected, success, case_ptr->msg )
+
+        /* Make sure we can get back what we put in.
+         * Only valid if the fapl configuration does not result in error.
+         */
+        if (success == SUCCEED) {
+            config = case_ptr->config;
+            JSVERIFY( SUCCEED,
+                      H5Pget_fapl_ros3(fapl_id, &fa_fetch),
+                      "unable to get fapl" )
+
+            JSVERIFY( H5FD_CURR_ROS3_FAPL_T_VERSION,
+                      fa_fetch.version,
+                      "invalid version number" )
+            JSVERIFY( config.version,
+                      fa_fetch.version,
+                      "version number mismatch" )
+            JSVERIFY( config.authenticate,
+                      fa_fetch.authenticate,
+                      "authentication flag mismatch" )
+            JSVERIFY_STR( config.aws_region,
+                          fa_fetch.aws_region,
+                          NULL )
+            JSVERIFY_STR( config.secret_id,
+                          fa_fetch.secret_id,
+                          NULL )
+            JSVERIFY_STR( config.secret_key,
+                          fa_fetch.secret_key,
+                          NULL )
+        }
+
+        /*-----------------------------
+         * per-test sanitation/teardown
+         *-----------------------------
+         */
+        FAIL_IF( FAIL == H5Pclose(fapl_id) )
+        fapl_id = -1;
+
+    } /* for each test case */
+
+    PASSED();
+    return 0;
+
+error:
+    /***********
+     * CLEANUP *
+     ***********/
+
+    if (fapl_id < 0) {
+        H5E_BEGIN_TRY {
+            (void)H5Pclose(fapl_id);
+        } H5E_END_TRY;
+    }
+    return 1;
+} /* test_fapl_config_validation */
+
+
+/*-------------------------------------------------------------------------
+ *
+ * Function:    test_ros3_fapl()
+ *
+ * Purpose:     Tests the file handle interface for the ROS3 driver
+ *
+ *              As the ROS3 driver is 1) read only, 2) requires access
+ *              to an S3 server, this test is quite
+ *              different from the other tests.
+ *
+ *              For now, test only fapl & flags.  Extend as the
+ *              work on the VFD continues.
+ *
+ * Return:      Success:        0
+ *              Failure:        1
+ *
+ * Programmer:  John Mainzer
+ *              7/12/17
+ *
+ *-------------------------------------------------------------------------
+ */
+static int
+test_ros3_fapl(void)
+{
+    /************************
+     * test-local variables *
+     ************************/
+
+    hid_t             fapl_id        = -1;  /* file access property list ID */
+    hid_t             driver_id      = -1;  /* ID for this VFD              */
+    unsigned long     driver_flags   =  0;  /* VFD feature flags            */
+    H5FD_ros3_fapl_t  ros3_fa_0      = {
+        H5FD_CURR_ROS3_FAPL_T_VERSION, /* version       */
+        FALSE,                          /* authenticate  */
+        "",                             /* aws_region    */
+        "",                             /* secret_id     */
+        "plugh",                        /* secret_key    */
+    };
+
+    TESTING("ROS3 fapl ");
+
+    /* Set property list and file name for ROS3 driver.
+     */
+    fapl_id = H5Pcreate(H5P_FILE_ACCESS);
+    FAIL_IF( fapl_id < 0 )
+
+    FAIL_IF( FAIL == H5Pset_fapl_ros3(fapl_id, &ros3_fa_0) )
+
+    driver_id = H5Pget_driver(fapl_id);
+    FAIL_IF( driver_id < 0 )
+
+    /****************
+     * Check that the VFD feature flags are correct
+     * SPEC MAY CHANGE
+     ******************/
+
+    FAIL_IF( H5FDdriver_query(driver_id, &driver_flags) < 0 )
+
+    JSVERIFY_NOT( 0, (driver_flags & H5FD_FEAT_DATA_SIEVE),
+                  "bit(s) in `driver_flags` must align with "
+                  "H5FD_FEAT_DATA_SIEVE" )
+
+    JSVERIFY( H5FD_FEAT_DATA_SIEVE, driver_flags,
+              "H5FD_FEAT_DATA_SIEVE should be the only supported flag")
+
+    PASSED();
+    return 0;
+
+error:
+    H5E_BEGIN_TRY {
+        (void)H5Pclose(fapl_id);
+    } H5E_END_TRY;
+
+    return 1;
+
+} /* test_ros3_fapl() */
+
+
+/*---------------------------------------------------------------------------
+ *
+ * Function: test_vfd_open()
+ *
+ * Purpose:
+ *
+ *     Demonstrate/specify VFD-level "Open" failure cases
+ *
+ * Return:
+ *
+ *     PASSED : 0
+ *     FAILED : 1
+ *
+ * Programmer: Jacob Smith
+ *             1027-11-03
+ *
+ *---------------------------------------------------------------------------
+ */
+static int
+test_vfd_open(void)
+{
+
+    /*********************
+     * test-local macros *
+     *********************/
+
+
+#define FAPL_H5P_DEFAULT -2
+#define FAPL_FILE_ACCESS -3
+#define FAPL_ROS3_ANON   -4
+
+    /*************************
+     * test-local structures *
+     *************************/
+
+    struct test_condition {
+        const char *message;
+        const char *url;
+        unsigned    flags;
+        int         which_fapl;
+        haddr_t     maxaddr;
+    };
+
+    /************************
+     * test-local variables *
+     ************************/
+
+    struct test_condition tests[] = {
+        {   "default property list (H5P_DEFAULT) is invalid",
+            url_text_public,
+            H5F_ACC_RDONLY,
+            FAPL_H5P_DEFAULT,
+            MAXADDR,
+        },
+        {   "generic file access property list is invalid",
+            url_text_public,
+            H5F_ACC_RDONLY,
+            FAPL_FILE_ACCESS,
+            MAXADDR,
+        },
+        {   "filename cannot be null",
+            NULL,
+            H5F_ACC_RDONLY,
+            FAPL_ROS3_ANON,
+            MAXADDR,
+        },
+        {   "filename cannot be empty",
+            "",
+            H5F_ACC_RDONLY,
+            FAPL_ROS3_ANON,
+            MAXADDR,
+        },
+        {   "filename must exist",
+            url_missing,
+            H5F_ACC_RDONLY,
+            FAPL_ROS3_ANON,
+            MAXADDR,
+        },
+        {   "read-write flag not supported",
+            url_text_public,
+            H5F_ACC_RDWR,
+            FAPL_ROS3_ANON,
+            MAXADDR,
+        },
+        {   "truncate flag not supported",
+            url_text_public,
+            H5F_ACC_TRUNC,
+            FAPL_ROS3_ANON,
+            MAXADDR,
+        },
+        {   "create flag not supported",
+            url_text_public,
+            H5F_ACC_CREAT,
+            FAPL_ROS3_ANON,
+            MAXADDR,
+        },
+        {   "EXCL flag not supported",
+            url_text_public,
+            H5F_ACC_EXCL,
+            FAPL_ROS3_ANON,
+            MAXADDR,
+        },
+        {   "maxaddr cannot be 0 (caught in `H5FD_open()`)",
+            url_text_public,
+            H5F_ACC_RDONLY,
+            FAPL_ROS3_ANON,
+            0,
+        },
+    };
+    H5FD_t   *fd         = NULL;
+    hbool_t   curl_ready = FALSE;
+    hid_t     fapl_id    = -1;
+    hid_t     fapl_file_access = -1;
+    unsigned  i                = 0;
+    unsigned  tests_count      = 10;
+
+    TESTING("ROS3 VFD-level open");
+
+    if (FALSE == s3_test_bucket_defined) {
+        SKIPPED();
+        puts("    environment variable HDF5_ROS3_TEST_BUCKET_URL not defined");
+        fflush(stdout);
+        return 0;
+    }
+
+    FAIL_IF( CURLE_OK != curl_global_init(CURL_GLOBAL_DEFAULT) )
+    curl_ready = TRUE;
+
+    fapl_file_access = H5Pcreate(H5P_FILE_ACCESS);
+    FAIL_IF( fapl_file_access < 0 )
+
+    fapl_id = H5Pcreate(H5P_FILE_ACCESS);
+    FAIL_IF( fapl_id < 0 )
+    FAIL_IF( FAIL == H5Pset_fapl_ros3(fapl_id, &anonymous_fa) )
+
+    /*********
+     * TESTS *
+     *********/
+
+    /* all the test cases that will _not_ open
+     */
+    for (i = 0; i < tests_count; i++) {
+        struct test_condition T = tests[i];
+        hid_t _fapl_id = H5P_DEFAULT;
+
+        fd = NULL;
+
+        if (T.which_fapl == FAPL_FILE_ACCESS)
+            _fapl_id = fapl_file_access;
+        else if (T.which_fapl == FAPL_ROS3_ANON)
+            _fapl_id = fapl_id;
+
+        H5E_BEGIN_TRY {
+            fd = H5FDopen(T.url, T.flags, _fapl_id, T.maxaddr);
+        } H5E_END_TRY;
+        if (NULL != fd)
+            JSVERIFY(1, 0, T.message); /* wrapper to print message and fail */
+    }
+
+    FAIL_IF( NULL != fd )
+
+    /* finally, show that a file can be opened
+     */
+    fd = H5FDopen(
+            url_text_public,
+            H5F_ACC_RDONLY,
+            fapl_id,
+            MAXADDR);
+    FAIL_IF( NULL == fd )
+
+    /************
+     * TEARDOWN *
+     ************/
+
+    FAIL_IF( FAIL == H5FDclose(fd) )
+    fd = NULL;
+
+    FAIL_IF( FAIL == H5Pclose(fapl_id) )
+    fapl_id = -1;
+
+    FAIL_IF( FAIL == H5Pclose(fapl_file_access) )
+    fapl_file_access = -1;
+
+    curl_global_cleanup();
+    curl_ready = FALSE;
+
+    PASSED();
+    return 0;
+
+error:
+    /***********
+     * CLEANUP *
+     ***********/
+
+    if (fd) {
+        (void)H5FDclose(fd);
+    }
+    if (fapl_id >= 0) {
+        H5E_BEGIN_TRY {
+            (void)H5Pclose(fapl_id);
+        } H5E_END_TRY;
+    }
+    if (fapl_file_access >= 0) {
+        H5E_BEGIN_TRY {
+            (void)H5Pclose(fapl_file_access);
+        } H5E_END_TRY;
+    }
+    if (curl_ready == TRUE) {
+        curl_global_cleanup();
+    }
+
+    return 1;
+
+#undef FAPL_FILE_ACCESS
+#undef FAPL_H5P_DEFAULT
+#undef FAPL_ROS3_ANON
+
+} /* test_vfd_open */
+
+
+/*---------------------------------------------------------------------------
+ *
+ * Function: test_eof_eoa()
+ *
+ * Purpose:
+ *
+ *     Demonstrate behavior of get_eof, get_eoa, and set_eoa.
+ *
+ * Return:
+ *
+ *     PASSED : 0
+ *     FAILED : 1
+ *
+ * Programmer: Jacob Smith
+ *             2017-11-08
+ *
+ *---------------------------------------------------------------------------
+ */
+static int
+test_eof_eoa(void)
+{
+
+    /*********************
+     * test-local macros *
+     *********************/
+
+    /*************************
+     * test-local structures *
+     *************************/
+
+    /************************
+     * test-local variables *
+     ************************/
+
+    H5FD_t  *fd_shakespeare  = NULL;
+    hbool_t  curl_ready      = FALSE;
+    hid_t    fapl_id         = -1;
+
+    TESTING("ROS3 eof/eoa gets and sets");
+
+    if (s3_test_credentials_loaded == 0) {
+        SKIPPED();
+        puts("    s3 credentials are not loaded");
+        fflush(stdout);
+        return 0;
+    }
+
+    if (FALSE == s3_test_bucket_defined) {
+        SKIPPED();
+        puts("    environment variable HDF5_ROS3_TEST_BUCKET_URL not defined");
+        fflush(stdout);
+        return 0;
+    }
+
+    /*********
+     * SETUP *
+     *********/
+
+    FAIL_IF( CURLE_OK != curl_global_init(CURL_GLOBAL_DEFAULT) )
+    curl_ready = TRUE;
+
+    fapl_id = H5Pcreate(H5P_FILE_ACCESS);
+    FAIL_IF( 0 > fapl_id )
+    FAIL_IF( FAIL == H5Pset_fapl_ros3(fapl_id, &restricted_access_fa) )
+
+    fd_shakespeare = H5FDopen(
+             url_text_restricted,
+             H5F_ACC_RDONLY,
+             fapl_id,
+             HADDR_UNDEF);
+    FAIL_IF( NULL == fd_shakespeare )
+
+    /*********
+     * TESTS *
+     *********/
+
+    /* verify as found
+     */
+    JSVERIFY( 5458199, H5FDget_eof(fd_shakespeare, H5FD_MEM_DEFAULT), NULL )
+    JSVERIFY( H5FDget_eof(fd_shakespeare, H5FD_MEM_DEFAULT),
+              H5FDget_eof(fd_shakespeare, H5FD_MEM_DRAW),
+              "mismatch between DEFAULT and RAW memory types" )
+    JSVERIFY( 0,
+              H5FDget_eoa(fd_shakespeare, H5FD_MEM_DEFAULT),
+              "EoA should be unset by H5FDopen" )
+
+    /* set EoA below EoF
+     */
+    JSVERIFY( SUCCEED,
+              H5FDset_eoa(fd_shakespeare, H5FD_MEM_DEFAULT, 44442202),
+              "unable to set EoA (lower)" )
+    JSVERIFY( 5458199,
+              H5FDget_eof(fd_shakespeare, H5FD_MEM_DEFAULT),
+              "EoF changed" )
+    JSVERIFY( 44442202,
+              H5FDget_eoa(fd_shakespeare, H5FD_MEM_DEFAULT),
+              "EoA unchanged" )
+
+    /* set EoA above EoF
+     */
+    JSVERIFY( SUCCEED,
+              H5FDset_eoa(fd_shakespeare, H5FD_MEM_DEFAULT, 6789012),
+              "unable to set EoA (higher)" )
+    JSVERIFY( 5458199,
+              H5FDget_eof(fd_shakespeare, H5FD_MEM_DEFAULT),
+              "EoF changed" )
+    JSVERIFY( 6789012,
+              H5FDget_eoa(fd_shakespeare, H5FD_MEM_DEFAULT),
+              "EoA unchanged" )
+
+    /************
+     * TEARDOWN *
+     ************/
+
+    FAIL_IF( FAIL == H5FDclose(fd_shakespeare) )
+
+    FAIL_IF( FAIL == H5Pclose(fapl_id) )
+    fapl_id = -1;
+
+    curl_global_cleanup();
+    curl_ready = FALSE;
+
+    PASSED();
+    return 0;
+
+error:
+    /***********
+     * CLEANUP *
+     ***********/
+
+    if (fd_shakespeare)     (void)H5FDclose(fd_shakespeare);
+    if (TRUE == curl_ready) curl_global_cleanup();
+    if (fapl_id >= 0) {
+        H5E_BEGIN_TRY {
+            (void)H5Pclose(fapl_id);
+        } H5E_END_TRY;
+    }
+
+    return 1;
+
+} /* test_eof_eoa */
+
+
+/*-----------------------------------------------------------------------------
+ *
+ * Function: test_H5FDread_without_eoa_set_fails()
+ *
+ * Purpose:
+ *
+ *     Demonstrate a not-obvious constraint by the library, preventing
+ *     file read before EoA is set
+ *
+ * Programmer: Jacob Smith
+ *             2018-01-26
+ *
+ *-----------------------------------------------------------------------------
+ */
+static int
+test_H5FDread_without_eoa_set_fails(void)
+{
+    char              buffer[256];
+    unsigned int      i                = 0;
+    H5FD_t           *file_shakespeare = NULL;
+    hid_t             fapl_id          = -1;
+
+    TESTING("ROS3 VFD read-eoa temporal coupling library limitation ");
+
+    if (s3_test_credentials_loaded == 0) {
+        SKIPPED();
+        puts("    s3 credentials are not loaded");
+        fflush(stdout);
+        return 0;
+    }
+
+    if (FALSE == s3_test_bucket_defined) {
+        SKIPPED();
+        puts("    environment variable HDF5_ROS3_TEST_BUCKET_URL not defined");
+        fflush(stdout);
+        return 0;
+    }
+
+    /*********
+     * SETUP *
+     *********/
+
+    /* create ROS3 fapl
+     */
+    fapl_id = H5Pcreate(H5P_FILE_ACCESS);
+    FAIL_IF( fapl_id < 0 )
+    FAIL_IF( FAIL == H5Pset_fapl_ros3(fapl_id, &restricted_access_fa) )
+
+    file_shakespeare = H5FDopen(
+            url_text_restricted,
+            H5F_ACC_RDONLY,
+            fapl_id,
+            MAXADDR);
+    FAIL_IF( NULL == file_shakespeare )
+
+    JSVERIFY( 0, H5FDget_eoa(file_shakespeare, H5FD_MEM_DEFAULT),
+              "EoA should remain unset by H5FDopen" )
+
+    for (i = 0; i < 256; i++)
+        buffer[i] = 0; /* zero buffer contents */
+
+    /********
+     * TEST *
+     ********/
+
+    H5E_BEGIN_TRY { /* mute stack trace on expected failure */
+        JSVERIFY( FAIL,
+                  H5FDread(file_shakespeare,
+                       H5FD_MEM_DRAW,
+                       H5P_DEFAULT,
+                       1200699,
+                       102,
+                       buffer),
+                  "cannot read before eoa is set" )
+    } H5E_END_TRY;
+    JSVERIFY_STR( "", buffer, "buffer should remain untouched" )
+
+    /************
+     * TEARDOWN *
+     ************/
+
+    FAIL_IF( FAIL == H5FDclose(file_shakespeare) )
+    file_shakespeare = NULL;
+
+    FAIL_IF( FAIL == H5Pclose(fapl_id) )
+    fapl_id = -1;
+
+    PASSED();
+    return 0;
+
+error:
+    /***********
+     * CLEANUP *
+     ***********/
+
+    if (file_shakespeare)   { (void)H5FDclose(file_shakespeare); }
+    if (fapl_id >= 0) {
+        H5E_BEGIN_TRY {
+           (void)H5Pclose(fapl_id);
+        } H5E_END_TRY;
+    }
+
+    return 1;
+
+} /* test_H5FDread_without_eoa_set_fails */
+
+
+
+/*---------------------------------------------------------------------------
+ *
+ * Function: test_read()
+ *
+ * Purpose:
+ *
+ * Return:
+ *
+ *     PASSED : 0
+ *     FAILED : 1
+ *
+ * Programmer: Jacob Smith
+ *             2017-11-06
+ *
+ *---------------------------------------------------------------------------
+ */
+static int
+test_read(void)
+{
+
+    /*********************
+     * test-local macros *
+     *********************/
+
+    /*************************
+     * test-local structures *
+     *************************/
+    struct testcase {
+        const char *message;  /* purpose of test case */
+        haddr_t     eoa_set;  /* set file EOA to this prior to read */
+        size_t      addr;     /* offset of read in file */
+        size_t      len;      /* length of read in file */
+        herr_t      success;  /* expected return value of read function */
+        const char *expected; /* expected contents of buffer; failure ignores */
+    };
+
+    /************************
+     * test-local variables *
+     ************************/
+    struct testcase cases[] = {
+        {   "successful range-get",
+            6464,
+            5691,
+            32, /* fancy quotes are three bytes each(?) */
+            SUCCEED,
+            "Quoth the Raven “Nevermore.”",
+        },
+        {   "read past EOA fails (EOA < EOF < addr)",
+            3000,
+            4000,
+            100,
+            FAIL,
+            NULL,
+        },
+        {   "read overlapping EOA fails (EOA < addr < EOF < (addr+len))",
+            3000,
+            8000,
+            100,
+            FAIL,
+            NULL,
+        },
+        {   "read past EOA/EOF fails ((EOA==EOF) < addr)",
+            6464,
+            7000,
+            100,
+            FAIL,
+            NULL,
+        },
+        {   "read overlapping EOA/EOF fails (addr < (EOA==EOF) < (addr+len))",
+            6464,
+            6400,
+            100,
+            FAIL,
+            NULL,
+        },
+        {   "read between EOF and EOA fails (EOF < addr < (addr+len) < EOA)",
+            8000,
+            7000,
+            100,
+            FAIL,
+            NULL,
+        },
+    };
+    unsigned          testcase_count   = 6;
+    unsigned          test_i           = 0;
+    struct testcase   test;
+    herr_t            open_return      = FAIL;
+    char              buffer[S3_TEST_MAX_URL_SIZE];
+    unsigned int      i                = 0;
+    H5FD_t           *file_raven       = NULL;
+    hid_t             fapl_id          = -1;
+
+    TESTING("ROS3 VFD read/range-gets");
+
+    if (s3_test_credentials_loaded == 0) {
+        SKIPPED();
+        puts("    s3 credentials are not loaded");
+        fflush(stdout);
+        return 0;
+    }
+
+    if (FALSE == s3_test_bucket_defined) {
+        SKIPPED();
+        puts("    environment variable HDF5_ROS3_TEST_BUCKET_URL not defined");
+        fflush(stdout);
+        return 0;
+    }
+
+    /*********
+     * SETUP *
+     *********/
+
+    /* create ROS3 fapl
+     */
+    fapl_id = H5Pcreate(H5P_FILE_ACCESS);
+    FAIL_IF( fapl_id < 0 )
+    FAIL_IF( FAIL == H5Pset_fapl_ros3(fapl_id, &restricted_access_fa) )
+
+    /* open file
+     */
+    file_raven = H5FDopen( /* will open with "authenticating" fapl */
+            url_text_public, /* TODO: check return state: anon access of restricted says OK? (not NULL) */
+            H5F_ACC_RDONLY,
+            fapl_id,
+            HADDR_UNDEF); /* Demonstrate success with "automatic" value */
+    FAIL_IF( NULL == file_raven )
+
+    JSVERIFY( 6464, H5FDget_eof(file_raven, H5FD_MEM_DEFAULT), NULL )
+
+    /*********
+     * TESTS *
+     *********/
+
+    for (test_i = 0; test_i < testcase_count; test_i++) {
+
+        /* -------------- *
+         * per-test setup *
+         * -------------- */
+
+        test        = cases[test_i];
+        open_return = FAIL;
+
+        FAIL_IF( S3_TEST_MAX_URL_SIZE < test.len ) /* buffer too small! */
+
+        FAIL_IF( FAIL ==
+                 H5FD_set_eoa( file_raven, H5FD_MEM_DEFAULT, test.eoa_set) )
+
+        for (i = 0; i < S3_TEST_MAX_URL_SIZE; i++) /* zero buffer contents */
+            buffer[i] = 0;
+
+        /* ------------ *
+         * conduct test *
+         * ------------ */
+
+        H5E_BEGIN_TRY {
+            open_return = H5FDread(
+                    file_raven,
+                    H5FD_MEM_DRAW,
+                    H5P_DEFAULT,
+                    test.addr,
+                    test.len,
+                    buffer);
+        } H5E_END_TRY;
+
+        JSVERIFY( test.success,
+                  open_return,
+                  test.message )
+        if (open_return == SUCCEED)
+            JSVERIFY_STR( test.expected, buffer, NULL )
+
+    } /* for each testcase */
+
+    /************
+     * TEARDOWN *
+     ************/
+
+    FAIL_IF( FAIL == H5FDclose(file_raven) )
+    file_raven = NULL;
+
+    FAIL_IF( FAIL == H5Pclose(fapl_id) )
+    fapl_id = -1;
+
+    PASSED();
+    return 0;
+
+error:
+    /***********
+     * CLEANUP *
+     ***********/
+
+    if (file_raven)
+        (void)H5FDclose(file_raven);
+    if (fapl_id >= 0) {
+        H5E_BEGIN_TRY {
+           (void)H5Pclose(fapl_id);
+        } H5E_END_TRY;
+    }
+
+    return 1;
+
+} /* test_read */
+
+
+/*---------------------------------------------------------------------------
+ *
+ * Function: test_noops_and_autofails()
+ *
+ * Purpose:
+ *
+ *     Demonstrate the unavailable and do-nothing routines unique to
+ *     Read-Only VFD.
+ *
+ * Return:
+ *
+ *     PASSED : 0
+ *     FAILED : 1
+ *
+ * Programmer: Jacob Smith
+ *             2017-11-06
+ *
+ *---------------------------------------------------------------------------
+ */
+static int
+test_noops_and_autofails(void)
+{
+    /*********************
+     * test-local macros *
+     *********************/
+
+    /*************************
+     * test-local structures *
+     *************************/
+
+    /************************
+     * test-local variables *
+     ************************/
+
+    hbool_t           curl_ready = FALSE;
+    hid_t             fapl_id    = -1;
+    H5FD_t           *file       = NULL;
+    const char        data[36]   = "The Force shall be with you, always";
+
+    TESTING("ROS3 VFD always-fail and no-op routines");
+
+
+    if (FALSE == s3_test_bucket_defined) {
+        SKIPPED();
+        puts("    environment variable HDF5_ROS3_TEST_BUCKET_URL not defined");
+        fflush(stdout);
+        return 0;
+    }
+
+    /*********
+     * SETUP *
+     *********/
+
+    FAIL_IF( CURLE_OK != curl_global_init(CURL_GLOBAL_DEFAULT) )
+    curl_ready = TRUE;
+
+    /* create ROS3 fapl
+     */
+    fapl_id = H5Pcreate(H5P_FILE_ACCESS);
+    FAIL_IF( fapl_id < 0 )
+    JSVERIFY( SUCCEED, H5Pset_fapl_ros3(fapl_id, &anonymous_fa), NULL )
+
+    /* open file
+     */
+    file = H5FDopen(
+            url_text_public,
+            H5F_ACC_RDONLY,
+            fapl_id,
+            HADDR_UNDEF);
+    FAIL_IF( NULL == file )
+
+    /*********
+     * TESTS *
+     *********/
+
+    /* auto-fail calls to write and truncate
+     */
+    H5E_BEGIN_TRY {
+        JSVERIFY( FAIL,
+                  H5FDwrite(file, H5FD_MEM_DRAW, H5P_DEFAULT, 1000, 35, data),
+                  "write must fail" )
+    } H5E_END_TRY;
+
+    H5E_BEGIN_TRY {
+        JSVERIFY( FAIL,
+                  H5FDtruncate(file, H5P_DEFAULT, FALSE),
+                  "truncate must fail" )
+    } H5E_END_TRY;
+
+    H5E_BEGIN_TRY {
+        JSVERIFY( FAIL,
+                  H5FDtruncate(file, H5P_DEFAULT, TRUE),
+                  "truncate must fail (closing)" )
+    } H5E_END_TRY;
+
+    /* no-op calls to `lock()` and `unlock()`
+     */
+    JSVERIFY( SUCCEED,
+              H5FDlock(file, TRUE),
+              "lock always succeeds; has no effect" )
+    JSVERIFY( SUCCEED,
+              H5FDlock(file, FALSE),
+              NULL )
+    JSVERIFY( SUCCEED,
+              H5FDunlock(file),
+              NULL )
+    /* Lock/unlock with null file or similar error crashes tests.
+     * HDassert in calling heirarchy, `H5FD[un]lock()` and `H5FD_[un]lock()`
+     */
+
+    /************
+     * TEARDOWN *
+     ************/
+
+    FAIL_IF( FAIL == H5FDclose(file) )
+    file = NULL;
+
+    FAIL_IF( FAIL == H5Pclose(fapl_id) )
+    fapl_id = -1;
+
+    curl_global_cleanup();
+    curl_ready = FALSE;
+
+    PASSED();
+    return 0;
+
+error:
+    /***********
+     * CLEANUP *
+     ***********/
+
+    if (fapl_id >= 0) {
+        H5E_BEGIN_TRY {
+           (void)H5Pclose(fapl_id);
+        } H5E_END_TRY;
+    }
+    if (file)               { (void)H5FDclose(file); }
+    if (curl_ready == TRUE) { curl_global_cleanup(); }
+
+    return 1;
+
+} /* test_noops_and_autofails*/
+
+
+/*---------------------------------------------------------------------------
+ *
+ * Function: test_cmp()
+ *
+ * Purpose:
+ *
+ *     Verify "file comparison" behavior.
+ *
+ * Return:
+ *
+ *     PASSED : 0
+ *     FAILED : 1
+ *
+ * Programmer: Jacob Smith
+ *             2017-11-06
+ *
+ *---------------------------------------------------------------------------
+ */
+static int
+test_cmp(void)
+{
+
+    /*********************
+     * test-local macros *
+     *********************/
+
+    /*************************
+     * test-local structures *
+     *************************/
+
+    /************************
+     * test-local variables *
+     ************************/
+
+    H5FD_t           *fd_raven   = NULL;
+    H5FD_t           *fd_shakes  = NULL;
+    H5FD_t           *fd_raven_2 = NULL;
+    hbool_t           curl_ready = FALSE;
+    hid_t             fapl_id    = -1;
+
+    TESTING("ROS3 cmp (comparison)");
+
+    if (s3_test_credentials_loaded == 0) {
+        SKIPPED();
+        puts("    s3 credentials are not loaded");
+        fflush(stdout);
+        return 0;
+    }
+
+    if (FALSE == s3_test_bucket_defined) {
+        SKIPPED();
+        puts("    environment variable HDF5_ROS3_TEST_BUCKET_URL not defined");
+        fflush(stdout);
+        return 0;
+    }
+
+    /*********
+     * SETUP *
+     *********/
+
+    FAIL_IF( CURLE_OK != curl_global_init(CURL_GLOBAL_DEFAULT) )
+    curl_ready = TRUE;
+
+    fapl_id = H5Pcreate(H5P_FILE_ACCESS);
+    FAIL_IF( 0 > fapl_id )
+    JSVERIFY( SUCCEED, H5Pset_fapl_ros3(fapl_id, &restricted_access_fa), NULL )
+
+    fd_raven = H5FDopen(
+            url_text_public,
+            H5F_ACC_RDONLY,
+            fapl_id,
+            HADDR_UNDEF);
+    FAIL_IF( NULL == fd_raven )
+
+    fd_shakes = H5FDopen(
+            url_text_restricted,
+            H5F_ACC_RDONLY,
+            fapl_id,
+            HADDR_UNDEF);
+    FAIL_IF( NULL == fd_shakes )
+
+    fd_raven_2 = H5FDopen(
+            url_text_public,
+            H5F_ACC_RDONLY,
+            fapl_id,
+            HADDR_UNDEF);
+    FAIL_IF( NULL == fd_raven_2 )
+
+    /*********
+     * TESTS *
+     *********/
+
+    JSVERIFY(  0, H5FDcmp(fd_raven,  fd_raven_2), NULL )
+    JSVERIFY( -1, H5FDcmp(fd_raven,  fd_shakes),  NULL )
+    JSVERIFY( -1, H5FDcmp(fd_shakes, fd_raven_2), NULL )
+
+    /************
+     * TEARDOWN *
+     ************/
+
+    FAIL_IF( FAIL == H5FDclose(fd_raven) )
+    fd_raven = NULL;
+    FAIL_IF( FAIL == H5FDclose(fd_shakes) )
+    fd_shakes = NULL;
+    FAIL_IF( FAIL == H5FDclose(fd_raven_2) )
+    fd_raven_2 = NULL;
+    FAIL_IF( FAIL == H5Pclose(fapl_id) )
+    fapl_id = -1;
+
+    curl_global_cleanup();
+    curl_ready = FALSE;
+
+    PASSED();
+    return 0;
+
+error:
+    /***********
+     * CLEANUP *
+     ***********/
+
+    if (fd_raven   != NULL)  (void)H5FDclose(fd_raven);
+    if (fd_raven_2 != NULL)  (void)H5FDclose(fd_raven_2);
+    if (fd_shakes  != NULL)  (void)H5FDclose(fd_shakes);
+    if (TRUE == curl_ready)  curl_global_cleanup();
+    if (fapl_id >= 0) {
+        H5E_BEGIN_TRY {
+            (void)H5Pclose(fapl_id);
+        } H5E_END_TRY;
+    }
+
+    return 1;
+
+} /* test_cmp */
+
+
+/*---------------------------------------------------------------------------
+ *
+ * Function: test_H5F_integration()
+ *
+ * Purpose:
+ *
+ *     Demonstrate S3 file-open through H5F API.
+ *
+ * Return:
+ *
+ *     PASSED : 0
+ *     FAILED : 1
+ *
+ * Programmer: Jacob Smith
+ *             2017-11-07
+ *
+ *---------------------------------------------------------------------------
+ */
+static int
+test_H5F_integration(void)
+{
+    /*********************
+     * test-local macros *
+     *********************/
+
+    /*************************
+     * test-local structures *
+     *************************/
+
+    /************************
+     * test-local variables *
+     ************************/
+
+    hid_t file    = -1;
+    hid_t fapl_id = -1;
+
+    TESTING("S3 file access through HD5F library (H5F API)");
+
+    if (s3_test_credentials_loaded == 0) {
+        SKIPPED();
+        puts("    s3 credentials are not loaded");
+        fflush(stdout);
+        return 0;
+    }
+
+    if (FALSE == s3_test_bucket_defined) {
+        SKIPPED();
+        puts("    environment variable HDF5_ROS3_TEST_BUCKET_URL not defined");
+        fflush(stdout);
+        return 0;
+    }
+
+    /*********
+     * SETUP *
+     *********/
+
+    fapl_id = H5Pcreate(H5P_FILE_ACCESS);
+    FAIL_IF( 0 > fapl_id )
+    FAIL_IF( FAIL == H5Pset_fapl_ros3(fapl_id, &restricted_access_fa) )
+
+    /*********
+     * TESTS *
+     *********/
+
+    /* Read-Write Open access is not allowed with this file driver.
+     */
+    H5E_BEGIN_TRY {
+        FAIL_IF( 0 <= H5Fopen(
+                      url_h5_public,
+                      H5F_ACC_RDWR,
+                      fapl_id) )
+    } H5E_END_TRY;
+
+    /* H5Fcreate() is not allowed with this file driver.
+     */
+    H5E_BEGIN_TRY {
+        FAIL_IF( 0 <= H5Fcreate(
+                      url_missing,
+                      H5F_ACC_RDONLY,
+                      H5P_DEFAULT,
+                      fapl_id) )
+    } H5E_END_TRY;
+
+    /* Successful open.
+     */
+    file = H5Fopen(
+            url_h5_public,
+            H5F_ACC_RDONLY,
+            fapl_id);
+    FAIL_IF( file < 0 )
+
+    /************
+     * TEARDOWN *
+     ************/
+
+    FAIL_IF( FAIL == H5Fclose(file) )
+    file = -1;
+
+    FAIL_IF( FAIL == H5Pclose(fapl_id) )
+    fapl_id = -1;
+
+    PASSED();
+    return 0;
+
+error:
+    /***********
+     * CLEANUP *
+     ***********/
+HDprintf("\nerror!"); fflush(stdout);
+
+    if (fapl_id >= 0) {
+        H5E_BEGIN_TRY {
+           (void)H5Pclose(fapl_id);
+        } H5E_END_TRY;
+    }
+    if (file > 0)
+        (void)H5Fclose(file);
+
+    return 1;
+
+} /* test_H5F_integration */
+
+#endif /* H5_HAVE_ROS3_VFD */
+
+
+/*-------------------------------------------------------------------------
+ *
+ * Function:    main
+ *
+ * Purpose:     Tests the basic features of Virtual File Drivers
+ *
+ * Return:      Success: 0
+ *              Failure: 1
+ *
+ * Programmer:  Jacob Smith
+ *              2017-10-23
+ *
+ *-------------------------------------------------------------------------
+ */
+int
+main(void)
+{
+#ifdef H5_HAVE_ROS3_VFD
+    int nerrors = 0;
+    const char *bucket_url_env = NULL;
+
+#endif /* H5_HAVE_ROS3_VFD */
+
+    HDprintf("Testing ros3 VFD functionality.\n");
+
+#ifdef H5_HAVE_ROS3_VFD
+
+    /************************
+     * initialize test urls *
+     ************************/
+
+    bucket_url_env = HDgetenv("HDF5_ROS3_TEST_BUCKET_URL");
+    if (bucket_url_env == NULL || bucket_url_env[0] == '\0') {
+        HDprintf("WARNING: S3 bucket url is not defined in enviornment " \
+                 "variable 'HDF5_ROS3_TEST_BUCKET_URL'!\n");
+    } else {
+        HDstrncpy(s3_test_bucket_url, bucket_url_env, S3_TEST_MAX_URL_SIZE);
+        s3_test_bucket_defined = TRUE;
+    }
+
+    if (S3_TEST_MAX_URL_SIZE < HDsnprintf(
+            url_text_restricted,
+            (size_t)S3_TEST_MAX_URL_SIZE,
+            "%s/%s",
+            (const char *)s3_test_bucket_url,
+            (const char *)S3_TEST_RESOURCE_TEXT_RESTRICTED))
+    {
+        HDprintf("* ros3 setup failed (text_restricted) ! *\n");
+        return 1;
+    }
+    if (S3_TEST_MAX_URL_SIZE < HDsnprintf(
+            url_text_public,
+            (size_t)S3_TEST_MAX_URL_SIZE,
+            "%s/%s",
+            (const char *)s3_test_bucket_url,
+            (const char *)S3_TEST_RESOURCE_TEXT_PUBLIC))
+    {
+        HDprintf("* ros3 setup failed (text_public) ! *\n");
+        return 1;
+    }
+    if (S3_TEST_MAX_URL_SIZE < HDsnprintf(
+            url_h5_public,
+            (size_t)S3_TEST_MAX_URL_SIZE,
+            "%s/%s",
+            (const char *)s3_test_bucket_url,
+            (const char *)S3_TEST_RESOURCE_H5_PUBLIC))
+    {
+        HDprintf("* ros3 setup failed (h5_public) ! *\n");
+        return 1;
+    }
+    if (S3_TEST_MAX_URL_SIZE < HDsnprintf(
+            url_missing,
+            S3_TEST_MAX_URL_SIZE,
+            "%s/%s",
+            (const char *)s3_test_bucket_url,
+            (const char *)S3_TEST_RESOURCE_MISSING))
+    {
+        HDprintf("* ros3 setup failed (missing) ! *\n");
+        return 1;
+    }
+
+    /**************************************
+     * load credentials and prepare fapls *
+     **************************************/
+
+    /* "clear" profile data strings */
+    s3_test_aws_access_key_id[0]     = '\0';
+    s3_test_aws_secret_access_key[0] = '\0';
+    s3_test_aws_region[0]            = '\0';
+
+    /* attempt to load test credentials
+     * if unable, certain tests will be skipped
+     */
+    if (SUCCEED == H5FD_s3comms_load_aws_profile(
+            S3_TEST_PROFILE_NAME,
+            s3_test_aws_access_key_id,
+            s3_test_aws_secret_access_key,
+            s3_test_aws_region))
+    {
+        s3_test_credentials_loaded = 1;
+        HDstrncpy(restricted_access_fa.aws_region,
+                (const char *)s3_test_aws_region,
+                H5FD_ROS3_MAX_REGION_LEN);
+        HDstrncpy(restricted_access_fa.secret_id,
+                (const char *)s3_test_aws_access_key_id,
+                H5FD_ROS3_MAX_SECRET_ID_LEN);
+        HDstrncpy(restricted_access_fa.secret_key,
+                (const char *)s3_test_aws_secret_access_key,
+                H5FD_ROS3_MAX_SECRET_KEY_LEN);
+    }
+
+    /******************
+     * commence tests *
+     ******************/
+
+    h5_reset();
+
+    nerrors += test_fapl_config_validation();
+    nerrors += test_ros3_fapl();
+    nerrors += test_vfd_open();
+    nerrors += test_eof_eoa();
+    nerrors += test_H5FDread_without_eoa_set_fails();
+    nerrors += test_read();
+    nerrors += test_noops_and_autofails();
+    nerrors += test_cmp();
+    nerrors += test_H5F_integration();
+
+    if (nerrors > 0) {
+        HDprintf("***** %d ros3 TEST%s FAILED! *****\n",
+                 nerrors,
+                 nerrors > 1 ? "S" : "");
+        nerrors = 1;
+    } else {
+        HDprintf("All ros3 tests passed.\n");
+    }
+    return nerrors; /* 0 if no errors, 1 if any errors */
+
+#else
+
+    HDprintf("SKIPPED - read-only S3 VFD not built\n");
+    return EXIT_SUCCESS;
+
+#endif /* H5_HAVE_ROS3_VFD */
+
+} /* main() */
+