CppunitTest --headless is not the same as soffice --headless

...they just "happen" to have the same name

Change-Id: Ia602f9a62e07c3af6fba2ffb84a858e1fb4b09ce

test/source/bootstrapfixture.cxx

@@ -30,6 +30,8 @@
 #include <osl/file.hxx>
 #include <unotools/tempfile.hxx>
 
+#include <isheadless.hxx>
+
 #include <boost/scoped_array.hpp>
 #include <cstring>
 
@@ -100,7 +102,7 @@ SAL_DLLPUBLIC_EXPORT void test_init(lang::XMultiServiceFactory *pFactory)
         LanguageTag::setConfiguredSystemLanguage(LANGUAGE_ENGLISH_US);
 
         InitVCL();
-        if (Application::IsHeadlessModeRequested())
+        if (test::isHeadless())
             Application::EnableHeadlessMode(true);
 
         test_init_impl(false, true, pFactory);

test/source/isheadless.hxx

+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-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/.
+ */
+
+#ifndef INCLUDED_TEST_SOURCE_ISHEADLESS_HXX
+#define INCLUDED_TEST_SOURCE_ISHEADLESS_HXX
+
+#include <sal/config.h>
+
+#include <rtl/process.h>
+#include <sal/types.h>
+
+namespace test {
+
+inline bool isHeadless() {
+    sal_uInt32 n = rtl_getAppCommandArgCount();
+    for (sal_uInt32 i = 0; i != n; ++i) {
+        OUString arg;
+        rtl_getAppCommandArg(i, &arg.pData);
+        if (arg == "--headless") {
+            return true;
+        }
+    }
+    return false;
+}
+
+}
+
+#endif
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */

test/source/vclbootstrapprotector.cxx

@@ -25,6 +25,8 @@
 #include <unotools/syslocaleoptions.hxx>
 #include <vcl/svapp.hxx>
 
+#include <isheadless.hxx>
+
 namespace {
 
 class Protector: public CppUnit::Protector, private boost::noncopyable {
@@ -38,7 +40,7 @@ public:
         MsLangId::setConfiguredSystemUILanguage(LANGUAGE_ENGLISH_US);
         LanguageTag::setConfiguredSystemLanguage(LANGUAGE_ENGLISH_US);
         InitVCL();
-        if (Application::IsHeadlessModeRequested()) {
+        if (test::isHeadless()) {
             Application::EnableHeadlessMode(true);
         }
         Application::setDeInitHook(STATIC_LINK(this, Protector, deinitHook));