Adding upstream version 7.0.6-dfsg.upstream/7.0.6-dfsgupstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

6 files changed, 620 insertions, 0 deletions

diff --git a/src/VBox/GuestHost/DragAndDrop/testcase/Makefile.kmk b/src/VBox/GuestHost/DragAndDrop/testcase/Makefile.kmk
new file mode 100644
index 00000000..537009e3
--- /dev/null
+++ b/src/VBox/GuestHost/DragAndDrop/testcase/Makefile.kmk
@@ -0,0 +1,81 @@
+# $Id: Makefile.kmk $
+## @file
+# Sub-Makefile for the DnD testcases.
+#
+
+#
+# Copyright (C) 2020-2022 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>.
+#
+# SPDX-License-Identifier: GPL-3.0-only
+#
+
+SUB_DEPTH = ../../../../..
+include $(KBUILD_PATH)/subheader.kmk
+
+if defined(VBOX_WITH_TESTCASES) && !defined(VBOX_ONLY_ADDITIONS) && !defined(VBOX_ONLY_SDK)
+
+  if defined(VBOX_WITH_QTGUI)
+   include $(PATH_SUB_CURRENT)/tstDragAndDropQt/Makefile.kmk
+  endif
+
+  PROGRAMS += tstDnDTransferObject tstDnDTransferList tstDnDPath
+  TESTING  += \
+  	$(tstDnDTransferObject_0_OUTDIR)/tstDnDTransferObject.run \
+  	$(tstDnDTransferList_0_OUTDIR)/tstDnDTransferList.run \
+  	$(tstDnDTransferPath_0_OUTDIR)/tstDnDPath.run
+
+  tstDnDTransferObject_TEMPLATE  = VBOXR3TSTEXE
+  tstDnDTransferObject_DEFS      = UNIT_TEST TESTCASE
+  tstDnDTransferObject_SOURCES   = \
+		tstDnDTransferObject.cpp \
+		../DnDTransferObject.cpp \
+		../DnDPath.cpp
+  tstDnDTransferObject_CLEAN     = $(tstDnDTransferObject_0_OUTDIR)/tstDnDTransferObject.run
+
+  $$(tstDnDTransferObject_0_OUTDIR)/tstDnDTransferObject.run: $$(tstDnDTransferObject_1_STAGE_TARGET)
+	export VBOX_LOG_DEST=nofile; $(tstDnDTransferObject_1_STAGE_TARGET) quiet
+	$(QUIET)$(APPEND) -t "$@" "done"
+
+  tstDnDTransferList_TEMPLATE  = VBOXR3TSTEXE
+  tstDnDTransferList_DEFS      = UNIT_TEST TESTCASE
+  tstDnDTransferList_SOURCES   = \
+		tstDnDTransferList.cpp \
+		../DnDTransferObject.cpp \
+		../DnDTransferList.cpp \
+		../DnDPath.cpp
+  tstDnDTransferList_CLEAN     = $(tstDnDTransferList_0_OUTDIR)/tstDnDTransferList.run
+
+  $$(tstDnDTransferList_0_OUTDIR)/tstDnDTransferList.run: $$(tstDnDTransferList_1_STAGE_TARGET)
+	export VBOX_LOG_DEST=nofile; $(tstDnDTransferList_1_STAGE_TARGET) quiet
+	$(QUIET)$(APPEND) -t "$@" "done"
+
+  tstDnDPath_TEMPLATE = VBOXR3TSTEXE
+  tstDnDPath_DEFS     = UNIT_TEST TESTCASE
+  tstDnDPath_SOURCES  = \
+		tstDnDPath.cpp \
+		../DnDPath.cpp
+  tstDnDPath_CLEAN    = $(tstDnDPath_0_OUTDIR)/tstDnDPath.run
+
+  $$(tstDnDPath_0_OUTDIR)/tstDnDPath.run: $$(tstDnDPath_1_STAGE_TARGET)
+	export VBOX_LOG_DEST=nofile; $(tstDnDPath_1_STAGE_TARGET) quiet
+	$(QUIET)$(APPEND) -t "$@" "done"
+
+endif
+
+include $(FILE_KBUILD_SUB_FOOTER)
diff --git a/src/VBox/GuestHost/DragAndDrop/testcase/tstDnDPath.cpp b/src/VBox/GuestHost/DragAndDrop/testcase/tstDnDPath.cpp
new file mode 100644
index 00000000..5fb2ffc1
--- /dev/null
+++ b/src/VBox/GuestHost/DragAndDrop/testcase/tstDnDPath.cpp
@@ -0,0 +1,100 @@
+/* $Id: tstDnDPath.cpp $ */
+/** @file
+ * DnD path tests.
+ */
+
+/*
+ * Copyright (C) 2020-2022 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>.
+ *
+ * SPDX-License-Identifier: GPL-3.0-only
+ */
+
+#include <iprt/assert.h>
+#include <iprt/env.h>
+#include <iprt/errcore.h>
+#include <iprt/path.h>
+#include <iprt/string.h>
+#include <iprt/test.h>
+
+#include <VBox/GuestHost/DragAndDrop.h>
+
+
+static void tstPathRebase(RTTEST hTest)
+{
+    static struct
+    {
+        char const *pszPath;
+        char const *pszPathOld;
+        char const *pszPathNew;
+        int rc;
+        char const *pszResult;
+    } const s_aTests[] = {
+        /* Invalid stuff. */
+        { NULL, NULL, NULL, VERR_INVALID_POINTER, NULL },
+        { "foo", "old", NULL, VERR_INVALID_POINTER, NULL },
+        /* Actual rebasing. */
+        { "old/foo", "old", "new", VINF_SUCCESS, "new/foo" },
+        /* Note: DnDPathRebase intentionally does not do any path conversions. */
+#ifdef RT_OS_WINDOWS
+        { "old\\foo", "old", "new", VINF_SUCCESS, "new/foo" },
+        { "\\totally\\different\\path\\foo", "/totally/different/path", "/totally/different/path", VINF_SUCCESS, "/totally/different/path/foo" },
+        { "\\old\\path\\foo", "", "/new/root/", VINF_SUCCESS, "/new/root/old/path/foo" },
+        { "\\\\old\\path\\\\foo", "", "/new/root/", VINF_SUCCESS, "/new/root/old/path\\\\foo" }
+#else
+        { "old/foo", "old", "new", VINF_SUCCESS, "new/foo" },
+        { "/totally/different/path/foo", "/totally/different/path", "/totally/different/path", VINF_SUCCESS, "/totally/different/path/foo" },
+        { "/old/path/foo", "", "/new/root/", VINF_SUCCESS, "/new/root/old/path/foo" },
+        { "//old/path//foo", "", "/new/root/", VINF_SUCCESS, "/new/root/old/path//foo" }
+#endif
+    };
+
+    char *pszPath = NULL;
+    for (size_t i = 0; i < RT_ELEMENTS(s_aTests); i++)
+    {
+        RTTestDisableAssertions(hTest);
+        RTTEST_CHECK_RC(hTest, DnDPathRebase(s_aTests[i].pszPath, s_aTests[i].pszPathOld, s_aTests[i].pszPathNew, &pszPath),
+                        s_aTests[i].rc);
+        RTTestRestoreAssertions(hTest);
+        if (RT_SUCCESS(s_aTests[i].rc))
+        {
+            if (s_aTests[i].pszResult)
+                RTTEST_CHECK_MSG(hTest, RTPathCompare(pszPath, s_aTests[i].pszResult) == 0,
+                                 (hTest, "Test #%zu failed: Got '%s', expected '%s'", i, pszPath, s_aTests[i].pszResult));
+            RTStrFree(pszPath);
+            pszPath = NULL;
+        }
+    }
+}
+
+int main()
+{
+    /*
+     * Init the runtime, test and say hello.
+     */
+    RTTEST hTest;
+    int rc = RTTestInitAndCreate("tstDnDPath", &hTest);
+    if (rc)
+        return rc;
+    RTTestBanner(hTest);
+
+    tstPathRebase(hTest);
+
+    return RTTestSummaryAndDestroy(hTest);
+}
+
diff --git a/src/VBox/GuestHost/DragAndDrop/testcase/tstDnDTransferList.cpp b/src/VBox/GuestHost/DragAndDrop/testcase/tstDnDTransferList.cpp
new file mode 100644
index 00000000..c5ef61f7
--- /dev/null
+++ b/src/VBox/GuestHost/DragAndDrop/testcase/tstDnDTransferList.cpp
@@ -0,0 +1,191 @@
+/* $Id: tstDnDTransferList.cpp $ */
+/** @file
+ * DnD transfer list  tests.
+ */
+
+/*
+ * Copyright (C) 2020-2022 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>.
+ *
+ * SPDX-License-Identifier: GPL-3.0-only
+ */
+
+#include <iprt/assert.h>
+#include <iprt/env.h>
+#include <iprt/err.h>
+#include <iprt/path.h>
+#include <iprt/string.h>
+#include <iprt/test.h>
+
+#include <VBox/GuestHost/DragAndDrop.h>
+
+
+int main()
+{
+    /*
+     * Init the runtime, test and say hello.
+     */
+    RTTEST hTest;
+    int rc = RTTestInitAndCreate("tstDnDTransferList", &hTest);
+    if (rc)
+        return rc;
+    RTTestBanner(hTest);
+
+    char szPathWellKnown[RTPATH_MAX];
+    RTStrCopy(szPathWellKnown, sizeof(szPathWellKnown),
+#ifdef RT_OS_WINDOWS
+              "C:\\Windows\\System32\\Boot\\");
+#else
+              "/bin/");
+#endif
+
+    char szPathWellKnownURI[RTPATH_MAX];
+    RTStrPrintf(szPathWellKnownURI, sizeof(szPathWellKnownURI), "file:///%s", szPathWellKnown);
+
+    DNDTRANSFERLIST list;
+    RT_ZERO(list);
+
+    /* Invalid stuff. */
+    RTTestDisableAssertions(hTest);
+    RTTEST_CHECK_RC(hTest, DnDTransferListInitEx(&list, "", DNDTRANSFERLISTFMT_NATIVE), VERR_INVALID_PARAMETER);
+    RTTEST_CHECK_RC(hTest, DnDTransferListInitEx(&list, szPathWellKnown, DNDTRANSFERLISTFMT_NATIVE), VINF_SUCCESS);
+    RTTEST_CHECK_RC(hTest, DnDTransferListInitEx(&list, szPathWellKnown, DNDTRANSFERLISTFMT_NATIVE), VERR_WRONG_ORDER);
+    RTTestRestoreAssertions(hTest);
+    DnDTransferListDestroy(&list);
+
+    /* Empty. */
+    RTTEST_CHECK_RC(hTest, DnDTransferListInit(&list), VINF_SUCCESS);
+    DnDTransferListDestroy(&list);
+
+    /* Initial status. */
+    RTTEST_CHECK_RC(hTest, DnDTransferListInitEx(&list, szPathWellKnown, DNDTRANSFERLISTFMT_NATIVE), VINF_SUCCESS);
+    RTTEST_CHECK(hTest, DnDTransferListGetRootCount(&list) == 0);
+    RTTEST_CHECK(hTest, DnDTransferListObjCount(&list) == 0);
+    RTTEST_CHECK(hTest, DnDTransferListObjTotalBytes(&list) == 0);
+    RTTEST_CHECK(hTest, DnDTransferListObjGetFirst(&list) == NULL);
+    DnDTransferListDestroy(&list);
+
+    char szPathTest[RTPATH_MAX];
+
+    /* Root path handling. */
+    RTTEST_CHECK_RC(hTest, DnDTransferListInitEx(&list, szPathWellKnown, DNDTRANSFERLISTFMT_NATIVE), VINF_SUCCESS);
+    RTTEST_CHECK_RC(hTest, DnDTransferListAppendPath(&list, DNDTRANSFERLISTFMT_NATIVE, "/wrong/root/path", DNDTRANSFERLIST_FLAGS_NONE), VERR_INVALID_PARAMETER);
+    rc = RTPathJoin(szPathTest, sizeof(szPathTest), szPathWellKnown, "/non/existing");
+    AssertRCReturn(rc, RTEXITCODE_FAILURE);
+    RTTEST_CHECK_RC(hTest, DnDTransferListAppendPath(&list, DNDTRANSFERLISTFMT_NATIVE, szPathTest, DNDTRANSFERLIST_FLAGS_NONE), VERR_PATH_NOT_FOUND);
+    DnDTransferListDestroy(&list);
+
+    /* Adding native stuff. */
+    /* No root path set yet and non-recursive -> will set root path to szPathWellKnown, but without any entries added. */
+    RTTEST_CHECK_RC(hTest, DnDTransferListInitEx(&list, szPathWellKnown, DNDTRANSFERLISTFMT_NATIVE), VINF_SUCCESS);
+    RTTEST_CHECK_RC(hTest, DnDTransferListAppendPath(&list, DNDTRANSFERLISTFMT_NATIVE, szPathWellKnown, DNDTRANSFERLIST_FLAGS_NONE), VINF_SUCCESS);
+    RTTEST_CHECK(hTest, DnDTransferListGetRootCount(&list));
+    RTTEST_CHECK(hTest, DnDTransferListObjCount(&list));
+
+    /* Add szPathWellKnown again, this time recursively. */
+    RTTEST_CHECK_RC(hTest, DnDTransferListAppendPath(&list, DNDTRANSFERLISTFMT_NATIVE, szPathWellKnown, DNDTRANSFERLIST_FLAGS_RECURSIVE), VINF_SUCCESS);
+    RTTEST_CHECK(hTest, DnDTransferListGetRootCount(&list));
+    RTTEST_CHECK(hTest, DnDTransferListObjCount(&list));
+
+    char *pszString = NULL;
+    size_t cbString = 0;
+    RTTEST_CHECK_RC_OK(hTest, DnDTransferListGetRoots(&list, DNDTRANSFERLISTFMT_NATIVE, &pszString, &cbString));
+    RTTestPrintf(hTest, RTTESTLVL_DEBUG, "Roots:\n%s\n\n", pszString);
+    RTStrFree(pszString);
+
+    PDNDTRANSFEROBJECT pObj;
+    while ((pObj = DnDTransferListObjGetFirst(&list)))
+    {
+        RTTestPrintf(hTest, RTTESTLVL_DEBUG, "Obj: %s\n", DnDTransferObjectGetDestPath(pObj));
+        DnDTransferListObjRemoveFirst(&list);
+    }
+    DnDTransferListDestroy(&list);
+
+    char  *pszBuf;
+    size_t cbBuf;
+
+    /* To URI data. */
+    RTTEST_CHECK_RC(hTest, DnDTransferListInitEx(&list, szPathWellKnownURI, DNDTRANSFERLISTFMT_URI), VINF_SUCCESS);
+    RTStrPrintf(szPathTest, sizeof(szPathTest), "%s/foo", szPathWellKnownURI);
+    RTTEST_CHECK_RC(hTest, DnDTransferListAppendPath(&list, DNDTRANSFERLISTFMT_URI, szPathWellKnownURI, DNDTRANSFERLIST_FLAGS_NONE), VINF_SUCCESS);
+    RTTEST_CHECK_RC(hTest, DnDTransferListAppendPath(&list, DNDTRANSFERLISTFMT_URI, szPathTest, DNDTRANSFERLIST_FLAGS_NONE), VERR_PATH_NOT_FOUND);
+    RTTEST_CHECK_RC(hTest, DnDTransferListGetRootsEx(&list, DNDTRANSFERLISTFMT_NATIVE, "" /* pszBasePath */, "\n", &pszBuf, &cbBuf), VINF_SUCCESS);
+    RTTestPrintf(hTest, RTTESTLVL_DEBUG, "Roots (native):\n%s\n", pszBuf);
+    RTStrFree(pszBuf);
+    RTTEST_CHECK_RC(hTest, DnDTransferListGetRootsEx(&list, DNDTRANSFERLISTFMT_URI, "" /* pszBasePath */, "\n", &pszBuf, &cbBuf), VINF_SUCCESS);
+    RTTestPrintf(hTest, RTTESTLVL_DEBUG, "Roots (URI):\n%s\n", pszBuf);
+    RTStrFree(pszBuf);
+    RTTEST_CHECK_RC(hTest, DnDTransferListGetRootsEx(&list, DNDTRANSFERLISTFMT_URI, "\\new\\base\\path", "\n", &pszBuf, &cbBuf), VINF_SUCCESS);
+    RTTestPrintf(hTest, RTTESTLVL_ALWAYS, "Roots (URI, new base):\n%s\n", pszBuf);
+    RTStrFree(pszBuf);
+    RTTEST_CHECK_RC(hTest, DnDTransferListGetRootsEx(&list, DNDTRANSFERLISTFMT_URI, "\\..\\invalid\\path", "\n", &pszBuf, &cbBuf), VERR_INVALID_PARAMETER);
+    DnDTransferListDestroy(&list);
+
+    /* From URI data. */
+#ifdef RT_OS_WINDOWS
+    RTStrPrintf(szPathTest, sizeof(szPathTest),  "C:/Windows/");
+    const char szURI[] =
+        "file:///C:/Windows/System32/Boot/\r\n"
+        "file:///C:/Windows/System/\r\n";
+#else
+    RTStrPrintf(szPathTest, sizeof(szPathTest), "/usr/");
+    const char szURI[] =
+        "file:///usr/bin/\r\n"
+        "file:///usr/lib/\r\n";
+#endif
+
+    RTTEST_CHECK_RC(hTest, DnDTransferListAppendPathsFromBuffer(&list, DNDTRANSFERLISTFMT_URI, szURI, sizeof(szURI), "\r\n",
+                                                                DNDTRANSFERLIST_FLAGS_NONE), VINF_SUCCESS);
+    RTTEST_CHECK(hTest, DnDTransferListGetRootCount(&list) == 2);
+    RTTEST_CHECK(hTest, RTPathCompare(DnDTransferListGetRootPathAbs(&list), szPathTest) == 0);
+
+    /* Validate returned lengths. */
+    pszBuf = NULL;
+    RTTEST_CHECK_RC(hTest, DnDTransferListGetRootsEx(&list, DNDTRANSFERLISTFMT_URI, "/base/", "\r\n", &pszBuf, &cbBuf), VINF_SUCCESS);
+    RTTEST_CHECK_MSG(hTest, RTStrCmp(pszBuf, "file:///base/bin/\r\nfile:///base/lib/\r\n") == 0, (hTest, "Got '%s'", pszBuf));
+    RTTEST_CHECK_MSG(hTest, cbBuf == strlen(pszBuf) + 1, (hTest, "Got %d, expected %d\n", cbBuf, strlen(pszBuf) + 1));
+    RTStrFree(pszBuf);
+
+    pszBuf = NULL;
+    RTTEST_CHECK_RC(hTest, DnDTransferListGetRootsEx(&list, DNDTRANSFERLISTFMT_NATIVE, "/base/", "\r\n", &pszBuf, &cbBuf), VINF_SUCCESS);
+    RTTEST_CHECK_MSG(hTest, RTStrCmp(pszBuf, "/base/bin/\r\n/base/lib/\r\n") == 0, (hTest, "Got '%s'", pszBuf));
+    RTTEST_CHECK_MSG(hTest, cbBuf == strlen(pszBuf) + 1, (hTest, "Got %d, expected %d\n", cbBuf, strlen(pszBuf) + 1));
+    RTStrFree(pszBuf);
+
+    /* Validate roots with a new base. */
+    pszBuf = NULL;
+    RTTEST_CHECK_RC(hTest, DnDTransferListGetRootsEx(&list, DNDTRANSFERLISTFMT_NATIVE, "/native/base/path", "\n", &pszBuf, &cbBuf), VINF_SUCCESS);
+    RTTestPrintf(hTest, RTTESTLVL_ALWAYS, "Roots (URI, new base):\n%s\n", pszBuf);
+    RTStrFree(pszBuf);
+
+    pszBuf = NULL;
+    RTTEST_CHECK_RC(hTest, DnDTransferListGetRootsEx(&list, DNDTRANSFERLISTFMT_NATIVE, "\\windows\\path", "\n", &pszBuf, &cbBuf), VINF_SUCCESS);
+    RTTestPrintf(hTest, RTTESTLVL_ALWAYS, "Roots (URI, new base):\n%s\n", pszBuf);
+    RTStrFree(pszBuf);
+
+    pszBuf = NULL;
+    RTTEST_CHECK_RC(hTest, DnDTransferListGetRootsEx(&list, DNDTRANSFERLISTFMT_NATIVE, "\\\\windows\\\\path", "\n", &pszBuf, &cbBuf), VINF_SUCCESS);
+    RTTestPrintf(hTest, RTTESTLVL_ALWAYS, "Roots (URI, new base):\n%s\n", pszBuf);
+    RTStrFree(pszBuf);
+
+    DnDTransferListDestroy(&list);
+    DnDTransferListDestroy(&list); /* Doing this twice here is intentional. */
+
+    return RTTestSummaryAndDestroy(hTest);
+}
+
diff --git a/src/VBox/GuestHost/DragAndDrop/testcase/tstDnDTransferObject.cpp b/src/VBox/GuestHost/DragAndDrop/testcase/tstDnDTransferObject.cpp
new file mode 100644
index 00000000..b6a09981
--- /dev/null
+++ b/src/VBox/GuestHost/DragAndDrop/testcase/tstDnDTransferObject.cpp
@@ -0,0 +1,128 @@
+/* $Id: tstDnDTransferObject.cpp $ */
+/** @file
+ * DnD URI object (DNDTRANSFEROBJECT) tests.
+ */
+
+/*
+ * Copyright (C) 2020-2022 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>.
+ *
+ * SPDX-License-Identifier: GPL-3.0-only
+ */
+
+#include <iprt/assert.h>
+#include <iprt/env.h>
+#include <iprt/errcore.h>
+#include <iprt/mem.h>
+#include <iprt/string.h>
+#include <iprt/test.h>
+
+#include <VBox/GuestHost/DragAndDrop.h>
+
+
+static void tstPaths(RTTEST hTest)
+{
+    RTTestSub(hTest, "Testing path handling");
+
+    char szBuf[64];
+
+    DNDTRANSFEROBJECT Obj;
+    RT_ZERO(Obj);
+
+    /*
+     * Initialization handling.
+     */
+    RTTEST_CHECK(hTest, DnDTransferObjectGetSourcePath(&Obj) == NULL);
+    RTTEST_CHECK_RC(hTest, DnDTransferObjectGetDestPathEx(&Obj, DNDTRANSFEROBJPATHSTYLE_TRANSPORT, szBuf, sizeof(szBuf)), VERR_NOT_FOUND);
+    RTTEST_CHECK(hTest, DnDTransferObjectGetMode(&Obj) == 0);
+    RTTEST_CHECK(hTest, DnDTransferObjectGetSize(&Obj) == 0);
+    RTTEST_CHECK(hTest, DnDTransferObjectGetProcessed(&Obj) == 0);
+    RTTEST_CHECK(hTest, DnDTransferObjectGetType(&Obj) == DNDTRANSFEROBJTYPE_UNKNOWN);
+
+    /*
+     * Paths handling.
+     */
+    RTTEST_CHECK_RC_OK(hTest, DnDTransferObjectInitEx(&Obj, DNDTRANSFEROBJTYPE_FILE, "", "/rel/path/to/dst"));
+    RTTestDisableAssertions(hTest);
+    RTTEST_CHECK_RC   (hTest, DnDTransferObjectInitEx(&Obj, DNDTRANSFEROBJTYPE_FILE, "", "/rel/path/to/dst"), VERR_WRONG_ORDER);
+    RTTestRestoreAssertions(hTest);
+    DnDTransferObjectReset(&Obj);
+
+    RTTEST_CHECK_RC_OK(hTest, DnDTransferObjectInitEx(&Obj, DNDTRANSFEROBJTYPE_FILE, "/src/path1", "dst/path2"));
+    RTTEST_CHECK(hTest, RTStrCmp(DnDTransferObjectGetSourcePath(&Obj), "/src/path1/dst/path2") == 0);
+    RTTEST_CHECK(hTest, RTStrCmp(DnDTransferObjectGetDestPath(&Obj), "dst/path2") == 0);
+    RTTEST_CHECK(hTest,    DnDTransferObjectGetDestPathEx(&Obj, DNDTRANSFEROBJPATHSTYLE_DOS, szBuf, sizeof(szBuf)) == VINF_SUCCESS
+                        && RTStrCmp(szBuf, "dst\\path2") == 0);
+    DnDTransferObjectReset(&Obj);
+    RTTEST_CHECK_RC_OK(hTest, DnDTransferObjectInitEx(&Obj, DNDTRANSFEROBJTYPE_FILE, "", "dst/with/ending/slash/"));
+    RTTEST_CHECK(hTest, RTStrCmp(DnDTransferObjectGetDestPath(&Obj), "dst/with/ending/slash/") == 0);
+    RTTEST_CHECK(hTest,    DnDTransferObjectGetDestPathEx(&Obj, DNDTRANSFEROBJPATHSTYLE_TRANSPORT, szBuf, sizeof(szBuf)) == VINF_SUCCESS
+                        && RTStrCmp(szBuf, "dst/with/ending/slash/") == 0);
+    DnDTransferObjectReset(&Obj);
+    RTTEST_CHECK_RC_OK(hTest, DnDTransferObjectInitEx(&Obj, DNDTRANSFEROBJTYPE_DIRECTORY, "", "dst/path2"));
+    RTTEST_CHECK(hTest, RTStrCmp(DnDTransferObjectGetSourcePath(&Obj), "dst/path2/") == 0);
+    RTTEST_CHECK(hTest, RTStrCmp(DnDTransferObjectGetDestPath(&Obj), "dst/path2/") == 0);
+    DnDTransferObjectReset(&Obj);
+    RTTEST_CHECK_RC_OK(hTest, DnDTransferObjectInitEx(&Obj, DNDTRANSFEROBJTYPE_DIRECTORY, "", "dst\\to\\path2"));
+    RTTEST_CHECK(hTest, RTStrCmp(DnDTransferObjectGetSourcePath(&Obj), "dst/to/path2/") == 0);
+    RTTEST_CHECK(hTest, RTStrCmp(DnDTransferObjectGetDestPath(&Obj), "dst/to/path2/") == 0);
+    DnDTransferObjectReset(&Obj);
+    /* Test that the destination does not have a beginning slash. */
+    RTTEST_CHECK_RC_OK(hTest, DnDTransferObjectInitEx(&Obj, DNDTRANSFEROBJTYPE_DIRECTORY, "/src/path2", "/dst/to/path2/"));
+    RTTEST_CHECK(hTest, RTStrCmp(DnDTransferObjectGetSourcePath(&Obj), "/src/path2/dst/to/path2/") == 0);
+    RTTEST_CHECK(hTest, RTStrCmp(DnDTransferObjectGetDestPath(&Obj), "dst/to/path2/") == 0);
+    DnDTransferObjectReset(&Obj);
+    RTTEST_CHECK_RC_OK(hTest, DnDTransferObjectInitEx(&Obj, DNDTRANSFEROBJTYPE_DIRECTORY, "/src/path2", "//////dst/to/path2/"));
+    RTTEST_CHECK(hTest, RTStrCmp(DnDTransferObjectGetDestPath(&Obj), "dst/to/path2/") == 0);
+
+    /*
+     * Invalid stuff.
+     */
+    DnDTransferObjectReset(&Obj);
+    RTTestDisableAssertions(hTest);
+    RTTEST_CHECK(hTest, DnDTransferObjectInitEx(&Obj, DNDTRANSFEROBJTYPE_DIRECTORY, "/src/path3", "../../dst/path3") == VERR_INVALID_PARAMETER);
+    RTTEST_CHECK(hTest, DnDTransferObjectInitEx(&Obj, DNDTRANSFEROBJTYPE_DIRECTORY, "/src/../../path3", "dst/path3") == VERR_INVALID_PARAMETER);
+    RTTestRestoreAssertions(hTest);
+
+    /*
+     * Reset handling.
+     */
+    DnDTransferObjectReset(&Obj);
+    RTTEST_CHECK(hTest, DnDTransferObjectGetSourcePath(&Obj) == NULL);
+    RTTEST_CHECK(hTest, DnDTransferObjectGetDestPath(&Obj) == NULL);
+
+    DnDTransferObjectDestroy(&Obj);
+    DnDTransferObjectDestroy(&Obj); /* Doing this twice here is intentional. */
+}
+
+int main()
+{
+    /*
+     * Init the runtime, test and say hello.
+     */
+    RTTEST hTest;
+    int rc = RTTestInitAndCreate("tstDnDTransferObject", &hTest);
+    if (rc)
+        return rc;
+    RTTestBanner(hTest);
+
+    tstPaths(hTest);
+
+    return RTTestSummaryAndDestroy(hTest);
+}
+
diff --git a/src/VBox/GuestHost/DragAndDrop/testcase/tstDragAndDropQt/Makefile.kmk b/src/VBox/GuestHost/DragAndDrop/testcase/tstDragAndDropQt/Makefile.kmk
new file mode 100644
index 00000000..9470c095
--- /dev/null
+++ b/src/VBox/GuestHost/DragAndDrop/testcase/tstDragAndDropQt/Makefile.kmk
@@ -0,0 +1,53 @@
+# $Id: Makefile.kmk $
+## @file
+# Sub-Makefile for tstDragAndDropQt.
+#
+
+#
+# Copyright (C) 2022 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>.
+#
+# SPDX-License-Identifier: GPL-3.0-only
+#
+
+SUB_DEPTH = ../../../../../..
+include $(KBUILD_PATH)/subheader.kmk
+
+#
+# Targets and units.
+#
+USES += qt5
+PROGRAMS.linux += tstDragAndDropQt # Just needed for Linux right now.
+
+#
+# tstDragAndDropQt
+#
+tstDragAndDropQt_TEMPLATE = VBOXQTGUIEXE
+tstDragAndDropQt_DEFS     = UNIT_TEST TESTCASE
+tstDragAndDropQt_NAME     = tstDragAndDropQt
+tstDragAndDropQt_CXXFLAGS = \
+	$(VBOX_GCC_Wno-implicit-fallthrough) \
+	$(VBOX_GCC_Wno-deprecated-declarations)
+
+tstDragAndDropQt_SOURCES = \
+	tstDragAndDropQt.cpp
+
+# The Qt modules we're using.
+tstDragAndDropQt_QT_MODULES = Core Gui Widgets PrintSupport
+
+include $(FILE_KBUILD_SUB_FOOTER)
diff --git a/src/VBox/GuestHost/DragAndDrop/testcase/tstDragAndDropQt/tstDragAndDropQt.cpp b/src/VBox/GuestHost/DragAndDrop/testcase/tstDragAndDropQt/tstDragAndDropQt.cpp
new file mode 100644
index 00000000..6fd5ad4c
--- /dev/null
+++ b/src/VBox/GuestHost/DragAndDrop/testcase/tstDragAndDropQt/tstDragAndDropQt.cpp
@@ -0,0 +1,67 @@
+/* $Id: tstDragAndDropQt.cpp $ */
+/** @file
+ * Drag and drop Qt code test cases.
+ */
+
+/*
+ * Copyright (C) 2022 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>.
+ *
+ * SPDX-License-Identifier: GPL-3.0-only
+ */
+
+#include <QtWidgets>
+
+class DnDWin : public QWidget
+{
+    public:
+
+        explicit DnDWin(QWidget *parent = nullptr) : QWidget(parent)
+        {
+             setMinimumSize(400, 400);
+             setWindowTitle("Drag me!");
+             setAcceptDrops(true);
+        }
+
+        void mouseMoveEvent(QMouseEvent *event)
+        {
+            if(!(event->buttons() & Qt::LeftButton))
+                return DnDWin::mouseMoveEvent(event);
+
+            event->accept();
+
+            QDrag *drag = new QDrag(this);
+
+            QMimeData *mime = new QMimeData();
+            mime->setData("text/plain", QString("/tmp/%1").arg("foo.bar").toLatin1());
+            mime->setData("text/uri-list", QString("file:///tmp/%1").arg("foo.bar").toLatin1());
+
+            drag->setMimeData(mime);
+            drag->exec();
+        }
+};
+
+int main(int argc, char *argv[])
+{
+    QApplication app(argc, argv);
+
+    DnDWin win;
+    win.show();
+
+    app.exec();
+}