diff --git a/plugins/autotest/autotestconstants.h b/plugins/autotest/autotestconstants.h
index ed9c4951493..04b4ac04247 100644
--- a/plugins/autotest/autotestconstants.h
+++ b/plugins/autotest/autotestconstants.h
@@ -36,8 +36,18 @@ const char TASK_PARSE[]                 = "AutoTest.Task.Parse";
 const char UNNAMED_QUICKTESTS[]         = QT_TR_NOOP("<unnamed>");
 const char AUTOTEST_SETTINGS_CATEGORY[] = "ZY.Tests";
 
-} // namespace Autotest
 } // namespace Constants
 
+namespace Internal {
+
+enum TestType
+{
+    TestTypeQt,
+    TestTypeGTest
+};
+
+} // namespace Internal
+} // namespace Autotest
+
 #endif // AUTOTESTCONSTANTS_H
 
diff --git a/plugins/autotest/testconfiguration.cpp b/plugins/autotest/testconfiguration.cpp
index 3cf60556586..96ceaf2a98f 100644
--- a/plugins/autotest/testconfiguration.cpp
+++ b/plugins/autotest/testconfiguration.cpp
@@ -43,7 +43,7 @@ TestConfiguration::TestConfiguration(const QString &testClass, const QStringList
       m_unnamedOnly(false),
       m_project(0),
       m_guessedConfiguration(false),
-      m_type(Qt)
+      m_type(TestTypeQt)
 {
     if (testCases.size() != 0)
         m_testCaseCount = testCases.size();
diff --git a/plugins/autotest/testconfiguration.h b/plugins/autotest/testconfiguration.h
index 1b2d34e0873..7b39ae879cb 100644
--- a/plugins/autotest/testconfiguration.h
+++ b/plugins/autotest/testconfiguration.h
@@ -20,6 +20,8 @@
 #ifndef TESTCONFIGURATION_H
 #define TESTCONFIGURATION_H
 
+#include "autotestconstants.h"
+
 #include <utils/environment.h>
 
 #include <QObject>
@@ -37,11 +39,6 @@ class TestConfiguration : public QObject
 {
     Q_OBJECT
 public:
-    enum TestType {
-        Qt,
-        GTest
-    };
-
     explicit TestConfiguration(const QString &testClass, const QStringList &testCases,
                                int testCaseCount = 0, QObject *parent = 0);
     ~TestConfiguration();
diff --git a/plugins/autotest/testresult.cpp b/plugins/autotest/testresult.cpp
index 5885c1c400a..ba75fb5246e 100644
--- a/plugins/autotest/testresult.cpp
+++ b/plugins/autotest/testresult.cpp
@@ -37,7 +37,7 @@ TestResult::TestResult(const QString &className)
     : m_class(className)
     , m_result(Result::Invalid)
     , m_line(0)
-    , m_type(Qt)
+    , m_type(TestTypeQt)
 {
 }
 
@@ -155,7 +155,7 @@ QTestResult::QTestResult(const QString &className)
 GTestResult::GTestResult(const QString &className)
     : TestResult(className)
 {
-    setTestType(GTest);
+    setTestType(TestTypeGTest);
 }
 
 } // namespace Internal
diff --git a/plugins/autotest/testresult.h b/plugins/autotest/testresult.h
index a6c4f3e32a1..b4226da5728 100644
--- a/plugins/autotest/testresult.h
+++ b/plugins/autotest/testresult.h
@@ -20,6 +20,8 @@
 #ifndef TESTRESULT_H
 #define TESTRESULT_H
 
+#include "autotestconstants.h"
+
 #include <QString>
 #include <QColor>
 #include <QMetaType>
@@ -58,12 +60,6 @@ enum Type {
 class TestResult
 {
 public:
-    enum TestType
-    {
-        Qt,
-        GTest
-    };
-
     TestResult();
     TestResult(const QString &className);
 
diff --git a/plugins/autotest/testresultdelegate.cpp b/plugins/autotest/testresultdelegate.cpp
index a1ca6f9fe43..a9a59b7f34e 100644
--- a/plugins/autotest/testresultdelegate.cpp
+++ b/plugins/autotest/testresultdelegate.cpp
@@ -48,9 +48,9 @@ QString TestResultDelegate::outputString(const TestResult &testResult, bool sele
     case Result::UnexpectedPass:
     case Result::BlacklistedFail:
     case Result::BlacklistedPass:
-        if (testResult.type() == TestResult::Qt)
+        if (testResult.type() == TestTypeQt)
             output = testResult.className() + QLatin1String("::") + testResult.testCase();
-        else // TestResult::GTest
+        else // TestTypeGTest
             output = testResult.testCase();
         if (!testResult.dataTag().isEmpty())
             output.append(QString::fromLatin1(" (%1)").arg(testResult.dataTag()));
diff --git a/plugins/autotest/testrunner.cpp b/plugins/autotest/testrunner.cpp
index eae29bec951..84d500ccdcf 100644
--- a/plugins/autotest/testrunner.cpp
+++ b/plugins/autotest/testrunner.cpp
@@ -142,8 +142,8 @@ void performTestRun(QFutureInterface<void> &futureInterface,
         if (connection)
             QObject::disconnect(connection);
 
-        TestConfiguration::TestType testType = testConfiguration->testType();
-        if (testType == TestConfiguration::Qt) {
+        TestType testType = testConfiguration->testType();
+        if (testType == TestTypeQt) {
             connection = QObject::connect(&testProcess, &QProcess::readyRead, &outputReader,
                                           &TestOutputReader::processOutput);
         } else {
@@ -166,14 +166,14 @@ void performTestRun(QFutureInterface<void> &futureInterface,
             continue;
         }
 
-        if (testType == TestConfiguration::Qt) {
+        if (testType == TestTypeQt) {
             QStringList argumentList(QLatin1String("-xml"));
             if (!metricsOption.isEmpty())
                 argumentList << metricsOption;
             if (testConfiguration->testCases().count())
                 argumentList << testConfiguration->testCases();
             testProcess.setArguments(argumentList);
-        } else { // TestConfiguration::GTest
+        } else { // TestTypeGTest
             const QStringList &testSets = testConfiguration->testCases();
             if (testSets.size()) {
                 QStringList argumentList;
diff --git a/plugins/autotest/testtreemodel.cpp b/plugins/autotest/testtreemodel.cpp
index 507e18da20c..49e2070839d 100644
--- a/plugins/autotest/testtreemodel.cpp
+++ b/plugins/autotest/testtreemodel.cpp
@@ -256,7 +256,7 @@ QList<TestConfiguration *> TestTreeModel::getAllTestCases() const
                                                       foundMains.value(proFile));
         tc->setProFile(proFile);
         tc->setProject(project);
-        tc->setTestType(TestConfiguration::GTest);
+        tc->setTestType(TestTypeGTest);
         result << tc;
     }
 
@@ -398,7 +398,7 @@ QList<TestConfiguration *> TestTreeModel::getSelectedTests() const
     foreach (const QString &proFile, proFilesWithEnabledTestSets.keys()) {
         TestConfiguration *tc = new TestConfiguration(QString(),
                                                       proFilesWithEnabledTestSets.value(proFile));
-        tc->setTestType(TestConfiguration::GTest);
+        tc->setTestType(TestTypeGTest);
         tc->setProFile(proFile);
         tc->setProject(project);
         result << tc;
@@ -468,7 +468,7 @@ TestConfiguration *TestTreeModel::getTestConfiguration(const TestTreeItem *item)
             config->setTestCaseCount(childCount);
             config->setProFile(item->childItem(0)->mainFile());
             config->setProject(project);
-            config->setTestType(TestConfiguration::GTest);
+            config->setTestType(TestTypeGTest);
         }
         break;
     }
@@ -478,7 +478,7 @@ TestConfiguration *TestTreeModel::getTestConfiguration(const TestTreeItem *item)
                                        QStringList(parent->name() + QLatin1Char('.') + item->name()));
         config->setProFile(item->mainFile());
         config->setProject(project);
-        config->setTestType(TestConfiguration::GTest);
+        config->setTestType(TestTypeGTest);
         break;
     }
     // not supported items