1 files changed, 144 insertions, 0 deletions
diff --git a/src/VBox/Runtime/testcase/tstRTDirCreateUniqueNumbered.cpp b/src/VBox/Runtime/testcase/tstRTDirCreateUniqueNumbered.cpp
new file mode 100644
index 00000000..248cf934
--- /dev/null
+++ b/src/VBox/Runtime/testcase/tstRTDirCreateUniqueNumbered.cpp
@@ -0,0 +1,144 @@
+/* $Id: tstRTDirCreateUniqueNumbered.cpp $ */
+/** @file
+ * IPRT Testcase - Unique directory creation.
+ */
+
+/*
+ * Copyright (C) 2011-2023 Oracle and/or its affiliates.
+ *
+ * This file is part of VirtualBox base platform packages, as
+ * available from https://www.virtualbox.org.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation, in version 3 of the
+ * License.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, see <https://www.gnu.org/licenses>.
+ *
+ * The contents of this file may alternatively be used under the terms
+ * of the Common Development and Distribution License Version 1.0
+ * (CDDL), a copy of it is provided in the "COPYING.CDDL" file included
+ * in the VirtualBox distribution, in which case the provisions of the
+ * CDDL are applicable instead of those of the GPL.
+ *
+ * You may elect to license modified versions of this file under the
+ * terms and conditions of either the GPL or the CDDL or both.
+ *
+ * SPDX-License-Identifier: GPL-3.0-only OR CDDL-1.0
+ */
+
+
+/*********************************************************************************************************************************
+*   Header Files                                                                                                                 *
+*********************************************************************************************************************************/
+#include <iprt/dir.h>
+
+#include <iprt/err.h>
+#include <iprt/path.h>
+#include <iprt/mem.h>
+#include <iprt/string.h>
+#include <iprt/test.h>
+
+
+/*********************************************************************************************************************************
+*   Global Variables                                                                                                             *
+*********************************************************************************************************************************/
+static char g_szTempPath[RTPATH_MAX - 50];
+
+
+static void tst1(size_t cTest, size_t cchDigits, char chSep)
+{
+    RTTestISubF("tst #%u (digits: %u; sep: %c)", cTest, cchDigits, chSep ? chSep : ' ');
+
+    /* We try to create max possible + one. */
+    size_t cTimes = 1;
+    for (size_t i = 0; i < cchDigits; ++i)
+        cTimes *= 10;
+
+    /* Allocate the result array. */
+    char **papszNames = (char **)RTMemTmpAllocZ((cTimes + 1) * sizeof(char *));
+    RTTESTI_CHECK_RETV(papszNames != NULL);
+
+    int rc = VERR_INTERNAL_ERROR;
+    /* The test loop. */
+    size_t i;
+    for (i = 0; i < cTimes + 1; i++)
+    {
+        char szName[RTPATH_MAX];
+        RTTESTI_CHECK_RC(rc = RTPathAppend(strcpy(szName, g_szTempPath), sizeof(szName), "RTDirCreateUniqueNumbered"), VINF_SUCCESS);
+        if (RT_FAILURE(rc))
+            break;
+
+        rc = RTDirCreateUniqueNumbered(szName, sizeof(szName), 0700, cchDigits, chSep);
+        if (rc != VINF_SUCCESS)
+        {
+            /* Random selection (system) isn't 100% predictable, so we must give a little
+               leeway for the 2+ digit tests.  (Using random is essential for performance.) */
+            if (cchDigits == 1 || rc != VERR_ALREADY_EXISTS || i < cTimes - 1)
+                RTTestIFailed("RTDirCreateUniqueNumbered(%s) call #%u -> %Rrc\n", szName, i, rc);
+            break;
+        }
+
+        RTTESTI_CHECK(papszNames[i] = RTStrDup(szName));
+        if (!papszNames[i])
+            break;
+
+        RTTestIPrintf(RTTESTLVL_DEBUG, "%s\n", papszNames[i]);
+    }
+
+    /* Try to create one more, which shouldn't be possible. */
+    if (RT_SUCCESS(rc) && i == cTimes + 1)
+    {
+        char szName[RTPATH_MAX];
+        RTTESTI_CHECK_RC(rc = RTPathAppend(strcpy(szName, g_szTempPath), sizeof(szName), "RTDirCreateUniqueNumbered"), VINF_SUCCESS);
+        if (RT_SUCCESS(rc))
+            RTTESTI_CHECK_RC(rc = RTDirCreateUniqueNumbered(szName, sizeof(szName), 0700, cchDigits, chSep), VERR_ALREADY_EXISTS);
+    }
+
+    /* cleanup */
+    while (i-- > 0)
+    {
+        RTTESTI_CHECK_RC(RTDirRemove(papszNames[i]), VINF_SUCCESS);
+        RTStrFree(papszNames[i]);
+    }
+    RTMemTmpFree(papszNames);
+}
+
+
+int main()
+{
+    RTTEST hTest;
+    RTEXITCODE rcExit = RTTestInitAndCreate("tstRTDirCreateUniqueNumbered", &hTest);
+    if (rcExit)
+        return rcExit;
+    RTTestBanner(hTest);
+
+    /*
+     * Get the temp directory (this is essential to the testcase).
+     */
+    int rc;
+    RTTESTI_CHECK_RC(rc = RTPathTemp(g_szTempPath, sizeof(g_szTempPath)), VINF_SUCCESS);
+    if (RT_FAILURE(rc))
+        return RTTestSummaryAndDestroy(hTest);
+
+    /*
+     * Create some test directories.
+     */
+    tst1(1, 1, '\0');
+    tst1(2, 1, '-');
+    tst1(3, 2, '\0');
+    tst1(4, 2, '-');
+
+    /*
+     * Summary.
+     */
+    return RTTestSummaryAndDestroy(hTest);
+}
+