tdf#152717: sc: Add UItest

I tried to implement this as a CppUnittest but =DDE formula
returns nothing

Change-Id: I4649a7842de516fc1867ddd214b323ff77f66317
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/145362
Tested-by: Jenkins
Reviewed-by: Xisco Fauli <xiscofauli@libreoffice.org>

sc/qa/uitest/calc_tests8/tdf152717.py

@@ -0,0 +1,30 @@
+# -*- tab-width: 4; indent-tabs-mode: nil; py-indent-offset: 4 -*-
+#
+# This file is part of the LibreOffice project.
+#
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+#
+from uitest.framework import UITestCase
+from uitest.uihelper.common import get_url_for_data_file
+from uitest.uihelper.calc import enter_text_to_cell
+from libreoffice.calc.document import get_cell_by_position
+
+class tdf152717(UITestCase):
+
+    def test_tdf152717(self):
+
+        with self.ui_test.create_doc_in_start_center("calc") as calc_document:
+            calcDoc = self.xUITest.getTopFocusWindow()
+
+            xGridWindow = calcDoc.getChild("grid_window")
+
+            # Use an existing document
+            enter_text_to_cell(xGridWindow, "A1", "=DDE(\"soffice\";\"" + get_url_for_data_file("tdf119954.ods") + "\";\"Sheet1.A1\")")
+
+            # Without the fix in place, this test would have failed with
+            # AssertionError: 1.0 != 0.0
+            self.assertEqual(1.0, get_cell_by_position(calc_document, 0, 0, 0).getValue())
+
+# vim: set shiftwidth=4 softtabstop=4 expandtab: