diff --git a/plugins/clang/tests/test_files.cpp b/plugins/clang/tests/test_files.cpp
index 84844f7952..a27e32c4d9 100644
--- a/plugins/clang/tests/test_files.cpp
+++ b/plugins/clang/tests/test_files.cpp
@@ -1,118 +1,130 @@
 /*************************************************************************************
  *  Copyright (C) 2013 by Milian Wolff <mail@milianw.de>                             *
  *  Copyright (C) 2013 Olivier de Gaalon <olivier.jg@gmail.com>                      *
  *                                                                                   *
  *  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; either version 2                   *
  *  of the License, or (at your option) any later version.                           *
  *                                                                                   *
  *  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, write to the Free Software                      *
  *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA   *
  *************************************************************************************/
 
 #include "test_files.h"
 
 #include <language/duchain/duchain.h>
 #include <language/duchain/problem.h>
 #include <language/codegen/coderepresentation.h>
 #include <language/backgroundparser/backgroundparser.h>
 
 #include <tests/testcore.h>
 #include <tests/autotestshell.h>
 #include <tests/json/declarationvalidator.h>
 
 #include "testfilepaths.h"
 #include "testprovider.h"
 
 //Include all used json tests, otherwise "Test not found"
 #include <tests/json/jsondeclarationtests.h>
 #include <tests/json/jsonducontexttests.h>
 #include <tests/json/jsontypetests.h>
 #include <interfaces/ilanguagecontroller.h>
 
 #include <QTest>
 #include <QLoggingCategory>
+#include <QProcess>
 
 using namespace KDevelop;
 
 QTEST_MAIN(TestFiles)
 
+namespace {
+bool isCudaAvailable()
+{
+    return QProcess::execute(QStringLiteral("clang"), {QStringLiteral("-xcuda"), QStringLiteral("-fsyntax-only"), QProcess::nullDevice()}) == 0;
+}
+}
+
 void TestFiles::initTestCase()
 {
     qputenv("KDEV_CLANG_JSON_TEST_RUN", "1");
     qputenv("KDEV_CLANG_EXTRA_ARGUMENTS", "-Wno-unused-variable -Wno-unused-parameter -Wno-unused-comparison -Wno-unused-value -Wno-unused-private-field -Wno-ignored-attributes");
 
     QLoggingCategory::setFilterRules(QStringLiteral("*.debug=false\ndefault.debug=true\nkdevelop.plugins.clang.debug=true\n"));
     QVERIFY(qputenv("KDEV_CLANG_DISPLAY_DIAGS", "1"));
     AutoTestShell::init({"kdevclangsupport"});
     TestCore::initialize(Core::NoUi);
     DUChain::self()->disablePersistentStorage();
     Core::self()->languageController()->backgroundParser()->setDelay(0);
     CodeRepresentation::setDiskChangesForbidden(true);
 
     m_provider = new TestEnvironmentProvider;
     IDefinesAndIncludesManager::manager()->registerBackgroundProvider(m_provider);
 }
 
 void TestFiles::cleanupTestCase()
 {
     delete m_provider;
     TestCore::shutdown();
 }
 
 void TestFiles::cleanup()
 {
     m_provider->clear();
 }
 
 void TestFiles::testFiles_data()
 {
     QTest::addColumn<QString>("fileName");
     const QString testDirPath = TEST_FILES_DIR;
-    const QStringList files = QDir(testDirPath).entryList({"*.h", "*.cpp", "*.c", "*.cl", "*.cu"}, QDir::Files);
+    auto patterns = QStringList{"*.h", "*.cpp", "*.c", "*.cl"};
+    if (isCudaAvailable()) {
+        patterns.append("*.cu");
+    }
+    const QStringList files = QDir(testDirPath).entryList(patterns, QDir::Files);
     for (const QString& file : files) {
         QTest::newRow(file.toUtf8().constData()) << QString(testDirPath + '/' + file);
     }
 }
 
 void TestFiles::testFiles()
 {
     QFETCH(QString, fileName);
 
     if (QTest::currentDataTag() == QLatin1String("lambdas.cpp")) {
         m_provider->parserArguments += "-std=c++14";
     }
 
     const IndexedString indexedFileName(fileName);
     ReferencedTopDUContext top =
         DUChain::self()->waitForUpdate(indexedFileName, TopDUContext::AllDeclarationsContextsAndUses);
     if (strcmp("test.cl", QTest::currentDataTag()) == 0) {
         if (!top) {
             QSKIP("Likely outdated shared-mime-info around, which doesn't know about the text/x-opencl-src mime type");
         }
     }
 
     QVERIFY(top);
     DUChainReadLocker lock;
     DeclarationValidator validator;
     top->visit(validator);
 
     const auto problems = top->problems();
     for (auto& problem : problems) {
         qDebug() << problem;
     }
 
     QEXPECT_FAIL("lambdas.cpp", "capture with identifier and initializer aren't visited apparently", Abort);
     QVERIFY(validator.testsPassed());
 
     if (!QTest::currentDataTag() || strcmp("invalid.cpp", QTest::currentDataTag()) != 0) {
         QVERIFY(top->problems().isEmpty());
     }
 }