diff --git a/tests/unit/mockup/projectexplorer/project.h b/tests/unit/mockup/projectexplorer/project.h
index 0cf902c8f91..e193ad404d7 100644
--- a/tests/unit/mockup/projectexplorer/project.h
+++ b/tests/unit/mockup/projectexplorer/project.h
@@ -26,6 +26,7 @@
 #pragma once
 
 #include "target.h"
+#include "taskhub.h"
 
 #include <projectexplorer/kit.h>
 
diff --git a/tests/unit/mockup/projectexplorer/taskhub.h b/tests/unit/mockup/projectexplorer/taskhub.h
new file mode 100644
index 00000000000..b172068c68d
--- /dev/null
+++ b/tests/unit/mockup/projectexplorer/taskhub.h
@@ -0,0 +1,51 @@
+/****************************************************************************
+**
+** Copyright (C) 2020 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.
+**
+****************************************************************************/
+
+#pragma once
+
+#include <projectexplorer/task.h>
+
+namespace ProjectExplorer {
+
+class TaskHub: public QObject
+{
+public:
+
+    static TaskHub *instance()
+    {
+        return nullptr;
+    }
+
+    static void addTask(Task::TaskType type, const QString &description,
+                        Core::Id category)
+    {
+    }
+
+    static void addTask(ProjectExplorer::Task task)
+    {
+    }
+};
+
+} // namespace ProjectExplorer
diff --git a/tests/unit/unittest/CMakeLists.txt b/tests/unit/unittest/CMakeLists.txt
index 029f31ea18a..4e7b97d53b7 100644
--- a/tests/unit/unittest/CMakeLists.txt
+++ b/tests/unit/unittest/CMakeLists.txt
@@ -155,6 +155,7 @@ add_qtc_test(unittest GTEST
     symbolquery-test.cpp
     symbolsfindfilter-test.cpp
     symbolstorage-test.cpp
+    task.cpp
     taskscheduler-test.cpp
     testenvironment.h
     tokenprocessor-test.cpp
diff --git a/tests/unit/unittest/task.cpp b/tests/unit/unittest/task.cpp
new file mode 100644
index 00000000000..88a2a80539b
--- /dev/null
+++ b/tests/unit/unittest/task.cpp
@@ -0,0 +1,33 @@
+/****************************************************************************
+**
+** Copyright (C) 2020 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 <projectexplorer/task.h>
+
+namespace ProjectExplorer {
+BuildSystemTask::BuildSystemTask(TaskType type, const QString &description,
+                const Utils::FilePath&, int line)
+{
+}
+}
diff --git a/tests/unit/unittest/unittest.pro b/tests/unit/unittest/unittest.pro
index c72d767ee0c..8f7ca8032a5 100644
--- a/tests/unit/unittest/unittest.pro
+++ b/tests/unit/unittest/unittest.pro
@@ -107,6 +107,7 @@ SOURCES += \
     symbolindexertaskqueue-test.cpp \
     refactoringprojectupdater-test.cpp \
     processormanager-test.cpp \
+    task.cpp \
     taskscheduler-test.cpp \
     compileroptionsbuilder-test.cpp \
     progresscounter-test.cpp \