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diff --git a/tests/unit/unittest/clangindexingsettingsmanager-test.cpp b/tests/unit/unittest/clangindexingsettingsmanager-test.cpp
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+++ b/tests/unit/unittest/clangindexingsettingsmanager-test.cpp
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+/****************************************************************************
+**
+** Copyright (C) 2019 The Qt Company Ltd.
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of Qt Creator.
+**
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see https://www.qt.io/terms-conditions. For further
+** information use the contact form at https://www.qt.io/contact-us.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3 as published by the Free Software
+** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
+** included in the packaging of this file. Please review the following
+** information to ensure the GNU General Public License requirements will
+** be met: https://www.gnu.org/licenses/gpl-3.0.html.
+**
+****************************************************************************/
+
+#include "googletest.h"
+
+#include <clangindexingsettingsmanager.h>
+#include <projectexplorer/project.h>
+
+namespace {
+class ClangIndexingSettingsManager : public testing::Test
+{
+protected:
+    ClangPchManager::ClangIndexingSettingsManager manager;
+    ProjectExplorer::Project project;
+    ProjectExplorer::Project project2;
+};
+
+TEST_F(ClangIndexingSettingsManager, FetchSettings)
+{
+    auto setting = manager.settings(&project);
+
+    ASSERT_THAT(setting, Not(IsNull()));
+}
+
+TEST_F(ClangIndexingSettingsManager, SettingsAreTheSameForTheSameProject)
+{
+    auto setting1 = manager.settings(&project);
+
+    auto setting2 = manager.settings(&project);
+
+    ASSERT_THAT(setting1, Eq(setting2));
+}
+
+TEST_F(ClangIndexingSettingsManager, SettingsAreTheDifferentForDifferentProjects)
+{
+    manager.settings(&project);
+    manager.settings(&project2);
+
+    auto setting1 = manager.settings(&project);
+
+    auto setting2 = manager.settings(&project2);
+
+    ASSERT_THAT(setting1, Not(Eq(setting2)));
+}
+
+TEST_F(ClangIndexingSettingsManager, RemoveSettings)
+{
+    manager.settings(&project);
+
+    manager.remove(&project);
+
+    ASSERT_FALSE(manager.hasSettings(&project));
+}
+
+TEST_F(ClangIndexingSettingsManager, RemoveNonExistingSettings)
+{
+    manager.remove(&project);
+
+    ASSERT_FALSE(manager.hasSettings(&project));
+}
+} // namespace