Add concurrency test

Added a sample solution that makes it easier to reproduce concurrency
issues in parallel builds of Qt/MSBuild projects. A .bat script builds
the sample solution in a loop and records any errors. This script can be
left to run unattended in order to find concurrency issues that occur
infrequently.

Change-Id: I006f8436289caf7e8d784fe73c2d1cb5c2ec73e0
Reviewed-by: Oliver Wolff <oliver.wolff@qt.io>

28 files changed, 885 insertions, 0 deletions

diff --git a/src/tests/concurrency/Solution1/MyPropertySheet.props b/src/tests/concurrency/Solution1/MyPropertySheet.props
new file mode 100644
index 00000000..af2b343c
--- /dev/null
+++ b/src/tests/concurrency/Solution1/MyPropertySheet.props
@@ -0,0 +1,10 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <ImportGroup Label="PropertySheets" />
+  <PropertyGroup Label="UserMacros">
+  </PropertyGroup>
+  <PropertyGroup />
+  <ItemDefinitionGroup />
+  <ItemGroup>
+  </ItemGroup>
+</Project>
\ No newline at end of file
diff --git a/src/tests/concurrency/Solution1/QtClassLibrary1/QtClass.cpp b/src/tests/concurrency/Solution1/QtClassLibrary1/QtClass.cpp
new file mode 100644
index 00000000..c5a77aac
--- /dev/null
+++ b/src/tests/concurrency/Solution1/QtClassLibrary1/QtClass.cpp
@@ -0,0 +1,10 @@
+#include "QtClass.h"
+
+QtClass::QtClass(QObject *parent)
+    : QObject(parent)
+{
+}
+
+QtClass::~QtClass()
+{
+}
diff --git a/src/tests/concurrency/Solution1/QtClassLibrary1/QtClass.h b/src/tests/concurrency/Solution1/QtClassLibrary1/QtClass.h
new file mode 100644
index 00000000..7e9b180d
--- /dev/null
+++ b/src/tests/concurrency/Solution1/QtClassLibrary1/QtClass.h
@@ -0,0 +1,13 @@
+#pragma once
+#include "qtclasslibrary1_global.h"
+
+#include <QObject>
+
+class QTCLASSLIBRARY1_EXPORT QtClass : public QObject
+{
+    Q_OBJECT
+
+public:
+    QtClass(QObject *parent);
+    ~QtClass();
+};
diff --git a/src/tests/concurrency/Solution1/QtClassLibrary1/QtClassLibrary1.cpp b/src/tests/concurrency/Solution1/QtClassLibrary1/QtClassLibrary1.cpp
new file mode 100644
index 00000000..10792c43
--- /dev/null
+++ b/src/tests/concurrency/Solution1/QtClassLibrary1/QtClassLibrary1.cpp
@@ -0,0 +1,5 @@
+#include "QtClassLibrary1.h"
+
+QtClassLibrary1::QtClassLibrary1()
+{
+}
diff --git a/src/tests/concurrency/Solution1/QtClassLibrary1/QtClassLibrary1.h b/src/tests/concurrency/Solution1/QtClassLibrary1/QtClassLibrary1.h
new file mode 100644
index 00000000..68e88384
--- /dev/null
+++ b/src/tests/concurrency/Solution1/QtClassLibrary1/QtClassLibrary1.h
@@ -0,0 +1,9 @@
+#pragma once
+
+#include "qtclasslibrary1_global.h"
+
+class QTCLASSLIBRARY1_EXPORT QtClassLibrary1
+{
+public:
+    QtClassLibrary1();
+};
diff --git a/src/tests/concurrency/Solution1/QtClassLibrary1/QtClassLibrary1.vcxproj b/src/tests/concurrency/Solution1/QtClassLibrary1/QtClassLibrary1.vcxproj
new file mode 100644
index 00000000..5be6d898
--- /dev/null
+++ b/src/tests/concurrency/Solution1/QtClassLibrary1/QtClassLibrary1.vcxproj
@@ -0,0 +1,119 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project DefaultTargets="Build" ToolsVersion="16.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <ItemGroup Label="ProjectConfigurations">
+    <ProjectConfiguration Include="Debug|x64">
+      <Configuration>Debug</Configuration>
+      <Platform>x64</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Release|x64">
+      <Configuration>Release</Configuration>
+      <Platform>x64</Platform>
+    </ProjectConfiguration>
+  </ItemGroup>
+  <PropertyGroup Label="Globals">
+    <ProjectGuid>{CE78EC51-C4A0-465B-A161-21C257BD057B}</ProjectGuid>
+    <Keyword>QtVS_v304</Keyword>
+    <WindowsTargetPlatformVersion Condition="'$(Configuration)|$(Platform)' == 'Debug|x64'">10.0</WindowsTargetPlatformVersion>
+    <WindowsTargetPlatformVersion Condition="'$(Configuration)|$(Platform)' == 'Release|x64'">10.0</WindowsTargetPlatformVersion>
+    <QtMsBuild Condition="Exists('$(MSBuildProjectDirectory)\..\..\..\..\qtmsbuild')"
+      >$([System.IO.Path]::GetFullPath(
+        $(MSBuildProjectDirectory)\..\..\..\..\qtmsbuild\QtMsBuild))</QtMsBuild>
+    <QtMsBuild Condition="'$(QtMsBuild)'=='' OR !Exists('$(QtMsBuild)\qt.targets')">$(MSBuildProjectDirectory)\QtMsBuild</QtMsBuild>
+  </PropertyGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)' == 'Debug|x64'" Label="Configuration">
+    <ConfigurationType>DynamicLibrary</ConfigurationType>
+    <PlatformToolset>v142</PlatformToolset>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)' == 'Release|x64'" Label="Configuration">
+    <ConfigurationType>DynamicLibrary</ConfigurationType>
+    <PlatformToolset>v142</PlatformToolset>
+  </PropertyGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
+  <ImportGroup Condition="Exists('$(QtMsBuild)\qt_defaults.props')">
+    <Import Project="$(QtMsBuild)\qt_defaults.props" />
+  </ImportGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)' == 'Debug|x64'" Label="QtSettings">
+    <QtInstall>$(DefaultQtVersion)</QtInstall>
+    <QtModules>core</QtModules>
+    <QtBuildConfig>debug</QtBuildConfig>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)' == 'Release|x64'" Label="QtSettings">
+    <QtInstall>$(DefaultQtVersion)</QtInstall>
+    <QtModules>core</QtModules>
+    <QtBuildConfig>release</QtBuildConfig>
+  </PropertyGroup>
+  <Target Name="QtMsBuildNotFound" BeforeTargets="CustomBuild;ClCompile" Condition="!Exists('$(QtMsBuild)\qt.targets') or !Exists('$(QtMsBuild)\qt.props')">
+    <Message Importance="High" Text="QtMsBuild: could not locate qt.targets, qt.props; project may not build correctly." />
+  </Target>
+  <ImportGroup Label="ExtensionSettings" />
+  <ImportGroup Label="Shared" />
+  <ImportGroup Label="PropertySheets" Condition="'$(Configuration)|$(Platform)' == 'Debug|x64'">
+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
+    <Import Project="..\MyPropertySheet.props" />
+    <Import Project="$(QtMsBuild)\Qt.props" />
+  </ImportGroup>
+  <ImportGroup Label="PropertySheets" Condition="'$(Configuration)|$(Platform)' == 'Release|x64'">
+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
+    <Import Project="..\MyPropertySheet.props" />
+    <Import Project="$(QtMsBuild)\Qt.props" />
+  </ImportGroup>
+  <PropertyGroup Label="UserMacros" />
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)' == 'Debug|x64'">
+    <AllProjectIncludesArePublic>true</AllProjectIncludesArePublic>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)' == 'Release|x64'">
+    <AllProjectIncludesArePublic>true</AllProjectIncludesArePublic>
+  </PropertyGroup>
+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">
+    <ProjectReference>
+      <UseLibraryDependencyInputs>true</UseLibraryDependencyInputs>
+    </ProjectReference>
+  </ItemDefinitionGroup>
+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
+    <ProjectReference>
+      <UseLibraryDependencyInputs>true</UseLibraryDependencyInputs>
+    </ProjectReference>
+  </ItemDefinitionGroup>
+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)' == 'Debug|x64'" Label="Configuration">
+    <ClCompile>
+      <TreatWChar_tAsBuiltInType>true</TreatWChar_tAsBuiltInType>
+      <MultiProcessorCompilation>true</MultiProcessorCompilation>
+      <DebugInformationFormat>ProgramDatabase</DebugInformationFormat>
+      <Optimization>Disabled</Optimization>
+      <RuntimeLibrary>MultiThreadedDebugDLL</RuntimeLibrary>
+      <PreprocessorDefinitions>QTCLASSLIBRARY1_LIB;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+    </ClCompile>
+    <Link>
+      <SubSystem>Windows</SubSystem>
+      <GenerateDebugInformation>true</GenerateDebugInformation>
+    </Link>
+  </ItemDefinitionGroup>
+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)' == 'Release|x64'" Label="Configuration">
+    <ClCompile>
+      <TreatWChar_tAsBuiltInType>true</TreatWChar_tAsBuiltInType>
+      <MultiProcessorCompilation>true</MultiProcessorCompilation>
+      <DebugInformationFormat>None</DebugInformationFormat>
+      <Optimization>MaxSpeed</Optimization>
+      <RuntimeLibrary>MultiThreadedDLL</RuntimeLibrary>
+      <PreprocessorDefinitions>QTCLASSLIBRARY1_LIB;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+    </ClCompile>
+    <Link>
+      <SubSystem>Windows</SubSystem>
+      <GenerateDebugInformation>false</GenerateDebugInformation>
+    </Link>
+  </ItemDefinitionGroup>
+  <ItemGroup>
+    <QtMoc Include="QtClass.h" />
+    <ClInclude Include="qtclasslibrary1_global.h" />
+    <ClInclude Include="QtClassLibrary1.h" />
+    <ClCompile Include="QtClass.cpp" />
+    <ClCompile Include="QtClassLibrary1.cpp" />
+  </ItemGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
+  <ImportGroup Condition="Exists('$(QtMsBuild)\qt.targets')">
+    <Import Project="$(QtMsBuild)\qt.targets" />
+  </ImportGroup>
+  <ImportGroup Label="ExtensionTargets">
+  </ImportGroup>
+</Project>
\ No newline at end of file
diff --git a/src/tests/concurrency/Solution1/QtClassLibrary1/QtClassLibrary1.vcxproj.filters b/src/tests/concurrency/Solution1/QtClassLibrary1/QtClassLibrary1.vcxproj.filters
new file mode 100644
index 00000000..5c88d0d9
--- /dev/null
+++ b/src/tests/concurrency/Solution1/QtClassLibrary1/QtClassLibrary1.vcxproj.filters
@@ -0,0 +1,42 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <ItemGroup>
+    <Filter Include="Source Files">
+      <UniqueIdentifier>{4FC737F1-C7A5-4376-A066-2A32D752A2FF}</UniqueIdentifier>
+      <Extensions>cpp;c;cc;cxx;def;odl;idl;hpj;bat;asm;asmx</Extensions>
+    </Filter>
+    <Filter Include="Header Files">
+      <UniqueIdentifier>{93995380-89BD-4b04-88EB-625FBE52EBFB}</UniqueIdentifier>
+      <Extensions>h;hh;hpp;hxx;hm;inl;inc;xsd</Extensions>
+    </Filter>
+    <Filter Include="Resource Files">
+      <UniqueIdentifier>{67DA6AB6-F800-4c08-8B7A-83BB121AAD01}</UniqueIdentifier>
+      <Extensions>qrc;rc;ico;cur;bmp;dlg;rc2;rct;bin;rgs;gif;jpg;jpeg;jpe;resx;tiff;tif;png;wav;mfcribbon-ms</Extensions>
+    </Filter>
+    <Filter Include="Translation Files">
+      <UniqueIdentifier>{639EADAA-A684-42e4-A9AD-28FC9BCB8F7C}</UniqueIdentifier>
+      <Extensions>ts</Extensions>
+    </Filter>
+  </ItemGroup>
+  <ItemGroup>
+    <ClInclude Include="qtclasslibrary1_global.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+    <ClCompile Include="QtClassLibrary1.cpp">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClInclude Include="QtClassLibrary1.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+  </ItemGroup>
+  <ItemGroup>
+    <QtMoc Include="QtClass.h">
+      <Filter>Header Files</Filter>
+    </QtMoc>
+  </ItemGroup>
+  <ItemGroup>
+    <ClCompile Include="QtClass.cpp">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+  </ItemGroup>
+</Project>
\ No newline at end of file
diff --git a/src/tests/concurrency/Solution1/QtClassLibrary1/qtclasslibrary1_global.h b/src/tests/concurrency/Solution1/QtClassLibrary1/qtclasslibrary1_global.h
new file mode 100644
index 00000000..565e06ba
--- /dev/null
+++ b/src/tests/concurrency/Solution1/QtClassLibrary1/qtclasslibrary1_global.h
@@ -0,0 +1,13 @@
+#pragma once
+
+#include <QtCore/qglobal.h>
+
+#ifndef BUILD_STATIC
+# if defined(QTCLASSLIBRARY1_LIB)
+#  define QTCLASSLIBRARY1_EXPORT Q_DECL_EXPORT
+# else
+#  define QTCLASSLIBRARY1_EXPORT Q_DECL_IMPORT
+# endif
+#else
+# define QTCLASSLIBRARY1_EXPORT
+#endif
diff --git a/src/tests/concurrency/Solution1/QtWidgetsApplication1/QtWidgetsApplication1.cpp b/src/tests/concurrency/Solution1/QtWidgetsApplication1/QtWidgetsApplication1.cpp
new file mode 100644
index 00000000..3ae59435
--- /dev/null
+++ b/src/tests/concurrency/Solution1/QtWidgetsApplication1/QtWidgetsApplication1.cpp
@@ -0,0 +1,11 @@
+#include "QtWidgetsApplication1.h"
+#include "QtClass.h"
+#include "Header.h"
+
+QtWidgetsApplication1::QtWidgetsApplication1(QWidget *parent)
+    : QMainWindow(parent)
+{
+    ui.setupUi(this);
+    qtObject = new QtClass(this);
+    foobar();
+}
diff --git a/src/tests/concurrency/Solution1/QtWidgetsApplication1/QtWidgetsApplication1.h b/src/tests/concurrency/Solution1/QtWidgetsApplication1/QtWidgetsApplication1.h
new file mode 100644
index 00000000..1a76b9a1
--- /dev/null
+++ b/src/tests/concurrency/Solution1/QtWidgetsApplication1/QtWidgetsApplication1.h
@@ -0,0 +1,18 @@
+#pragma once
+
+#include <QtWidgets/QMainWindow>
+#include "ui_QtWidgetsApplication1.h"
+
+class QtClass;
+
+class QtWidgetsApplication1 : public QMainWindow
+{
+    Q_OBJECT
+
+public:
+    QtWidgetsApplication1(QWidget *parent = Q_NULLPTR);
+
+private:
+    Ui::QtWidgetsApplication1Class ui;
+    QtClass *qtObject;
+};
diff --git a/src/tests/concurrency/Solution1/QtWidgetsApplication1/QtWidgetsApplication1.qrc b/src/tests/concurrency/Solution1/QtWidgetsApplication1/QtWidgetsApplication1.qrc
new file mode 100644
index 00000000..d56c1ee5
--- /dev/null
+++ b/src/tests/concurrency/Solution1/QtWidgetsApplication1/QtWidgetsApplication1.qrc
@@ -0,0 +1,4 @@
+<RCC>
+    <qresource prefix="QtWidgetsApplication1">
+    </qresource>
+</RCC>
diff --git a/src/tests/concurrency/Solution1/QtWidgetsApplication1/QtWidgetsApplication1.ui b/src/tests/concurrency/Solution1/QtWidgetsApplication1/QtWidgetsApplication1.ui
new file mode 100644
index 00000000..4d40f03c
--- /dev/null
+++ b/src/tests/concurrency/Solution1/QtWidgetsApplication1/QtWidgetsApplication1.ui
@@ -0,0 +1,28 @@
+<UI version="4.0" >
+ <class>QtWidgetsApplication1Class</class>
+ <widget class="QMainWindow" name="QtWidgetsApplication1Class" >
+  <property name="objectName" >
+   <string notr="true">QtWidgetsApplication1Class</string>
+  </property>
+  <property name="geometry" >
+   <rect>
+    <x>0</x>
+    <y>0</y>
+    <width>600</width>
+    <height>400</height>
+   </rect>
+  </property>
+  <property name="windowTitle" >
+   <string>QtWidgetsApplication1</string>
+  </property>  <widget class="QMenuBar" name="menuBar" />
+  <widget class="QToolBar" name="mainToolBar" />
+  <widget class="QWidget" name="centralWidget" />
+  <widget class="QStatusBar" name="statusBar" />
+ </widget>
+ <layoutDefault spacing="6" margin="11" />
+ <pixmapfunction></pixmapfunction>
+ <resources>
+   <include location="QtWidgetsApplication1.qrc"/>
+ </resources>
+ <connections/>
+</UI>
diff --git a/src/tests/concurrency/Solution1/QtWidgetsApplication1/QtWidgetsApplication1.vcxproj b/src/tests/concurrency/Solution1/QtWidgetsApplication1/QtWidgetsApplication1.vcxproj
new file mode 100644
index 00000000..5cd0dccc
--- /dev/null
+++ b/src/tests/concurrency/Solution1/QtWidgetsApplication1/QtWidgetsApplication1.vcxproj
@@ -0,0 +1,115 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project DefaultTargets="Build" ToolsVersion="16.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <ItemGroup Label="ProjectConfigurations">
+    <ProjectConfiguration Include="Debug|x64">
+      <Configuration>Debug</Configuration>
+      <Platform>x64</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Release|x64">
+      <Configuration>Release</Configuration>
+      <Platform>x64</Platform>
+    </ProjectConfiguration>
+  </ItemGroup>
+  <PropertyGroup Label="Globals">
+    <ProjectGuid>{806AF248-25F9-4300-9FB3-100E5F79C026}</ProjectGuid>
+    <Keyword>QtVS_v304</Keyword>
+    <WindowsTargetPlatformVersion Condition="'$(Configuration)|$(Platform)' == 'Debug|x64'">10.0</WindowsTargetPlatformVersion>
+    <WindowsTargetPlatformVersion Condition="'$(Configuration)|$(Platform)' == 'Release|x64'">10.0</WindowsTargetPlatformVersion>
+    <QtMsBuild Condition="Exists('$(MSBuildProjectDirectory)\..\..\..\..\qtmsbuild')"
+      >$([System.IO.Path]::GetFullPath(
+        $(MSBuildProjectDirectory)\..\..\..\..\qtmsbuild\QtMsBuild))</QtMsBuild>
+    <QtMsBuild Condition="'$(QtMsBuild)'=='' OR !Exists('$(QtMsBuild)\qt.targets')">$(MSBuildProjectDirectory)\QtMsBuild</QtMsBuild>
+  </PropertyGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)' == 'Debug|x64'" Label="Configuration">
+    <ConfigurationType>Application</ConfigurationType>
+    <PlatformToolset>v142</PlatformToolset>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)' == 'Release|x64'" Label="Configuration">
+    <ConfigurationType>Application</ConfigurationType>
+    <PlatformToolset>v142</PlatformToolset>
+  </PropertyGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
+  <ImportGroup Condition="Exists('$(QtMsBuild)\qt_defaults.props')">
+    <Import Project="$(QtMsBuild)\qt_defaults.props" />
+  </ImportGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)' == 'Debug|x64'" Label="QtSettings">
+    <QtInstall>$(DefaultQtVersion)</QtInstall>
+    <QtModules>core;gui;widgets</QtModules>
+    <QtBuildConfig>debug</QtBuildConfig>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)' == 'Release|x64'" Label="QtSettings">
+    <QtInstall>$(DefaultQtVersion)</QtInstall>
+    <QtModules>core;gui;widgets</QtModules>
+    <QtBuildConfig>release</QtBuildConfig>
+  </PropertyGroup>
+  <Target Name="QtMsBuildNotFound" BeforeTargets="CustomBuild;ClCompile" Condition="!Exists('$(QtMsBuild)\qt.targets') or !Exists('$(QtMsBuild)\qt.props')">
+    <Message Importance="High" Text="QtMsBuild: could not locate qt.targets, qt.props; project may not build correctly." />
+  </Target>
+  <ImportGroup Label="ExtensionSettings" />
+  <ImportGroup Label="Shared" />
+  <ImportGroup Label="PropertySheets" Condition="'$(Configuration)|$(Platform)' == 'Debug|x64'">
+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
+    <Import Project="..\MyPropertySheet.props" />
+    <Import Project="$(QtMsBuild)\Qt.props" />
+  </ImportGroup>
+  <ImportGroup Label="PropertySheets" Condition="'$(Configuration)|$(Platform)' == 'Release|x64'">
+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
+    <Import Project="..\MyPropertySheet.props" />
+    <Import Project="$(QtMsBuild)\Qt.props" />
+  </ImportGroup>
+  <PropertyGroup Label="UserMacros" />
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)' == 'Debug|x64'">
+    <CopyLocalProjectReference>true</CopyLocalProjectReference>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)' == 'Release|x64'">
+    <CopyLocalProjectReference>true</CopyLocalProjectReference>
+  </PropertyGroup>
+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)' == 'Debug|x64'" Label="Configuration">
+    <ClCompile>
+      <TreatWChar_tAsBuiltInType>true</TreatWChar_tAsBuiltInType>
+      <MultiProcessorCompilation>true</MultiProcessorCompilation>
+      <DebugInformationFormat>ProgramDatabase</DebugInformationFormat>
+      <Optimization>Disabled</Optimization>
+      <RuntimeLibrary>MultiThreadedDebugDLL</RuntimeLibrary>
+    </ClCompile>
+    <Link>
+      <SubSystem>Windows</SubSystem>
+      <GenerateDebugInformation>true</GenerateDebugInformation>
+    </Link>
+  </ItemDefinitionGroup>
+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)' == 'Release|x64'" Label="Configuration">
+    <ClCompile>
+      <TreatWChar_tAsBuiltInType>true</TreatWChar_tAsBuiltInType>
+      <MultiProcessorCompilation>true</MultiProcessorCompilation>
+      <DebugInformationFormat>None</DebugInformationFormat>
+      <Optimization>MaxSpeed</Optimization>
+      <RuntimeLibrary>MultiThreadedDLL</RuntimeLibrary>
+    </ClCompile>
+    <Link>
+      <SubSystem>Windows</SubSystem>
+      <GenerateDebugInformation>false</GenerateDebugInformation>
+    </Link>
+  </ItemDefinitionGroup>
+  <ItemGroup>
+    <QtRcc Include="QtWidgetsApplication1.qrc" />
+    <QtUic Include="QtWidgetsApplication1.ui" />
+    <QtMoc Include="QtWidgetsApplication1.h" />
+    <ClCompile Include="QtWidgetsApplication1.cpp" />
+    <ClCompile Include="main.cpp" />
+  </ItemGroup>
+  <ItemGroup>
+    <ProjectReference Include="..\QtClassLibrary1\QtClassLibrary1.vcxproj">
+      <Project>{ce78ec51-c4a0-465b-a161-21c257bd057b}</Project>
+    </ProjectReference>
+    <ProjectReference Include="..\StaticLib1\StaticLib1.vcxproj">
+      <Project>{8463051a-b32c-43f0-9a77-9f223598aac9}</Project>
+    </ProjectReference>
+  </ItemGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
+  <ImportGroup Condition="Exists('$(QtMsBuild)\qt.targets')">
+    <Import Project="$(QtMsBuild)\qt.targets" />
+  </ImportGroup>
+  <ImportGroup Label="ExtensionTargets">
+  </ImportGroup>
+</Project>
\ No newline at end of file
diff --git a/src/tests/concurrency/Solution1/QtWidgetsApplication1/QtWidgetsApplication1.vcxproj.filters b/src/tests/concurrency/Solution1/QtWidgetsApplication1/QtWidgetsApplication1.vcxproj.filters
new file mode 100644
index 00000000..4cb63b79
--- /dev/null
+++ b/src/tests/concurrency/Solution1/QtWidgetsApplication1/QtWidgetsApplication1.vcxproj.filters
@@ -0,0 +1,44 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <ItemGroup>
+    <Filter Include="Source Files">
+      <UniqueIdentifier>{4FC737F1-C7A5-4376-A066-2A32D752A2FF}</UniqueIdentifier>
+      <Extensions>cpp;c;cc;cxx;def;odl;idl;hpj;bat;asm;asmx</Extensions>
+    </Filter>
+    <Filter Include="Header Files">
+      <UniqueIdentifier>{93995380-89BD-4b04-88EB-625FBE52EBFB}</UniqueIdentifier>
+      <Extensions>h;hh;hpp;hxx;hm;inl;inc;xsd</Extensions>
+    </Filter>
+    <Filter Include="Resource Files">
+      <UniqueIdentifier>{67DA6AB6-F800-4c08-8B7A-83BB121AAD01}</UniqueIdentifier>
+      <Extensions>qrc;rc;ico;cur;bmp;dlg;rc2;rct;bin;rgs;gif;jpg;jpeg;jpe;resx;tiff;tif;png;wav;mfcribbon-ms</Extensions>
+    </Filter>
+    <Filter Include="Form Files">
+      <UniqueIdentifier>{99349809-55BA-4b9d-BF79-8FDBB0286EB3}</UniqueIdentifier>
+      <Extensions>ui</Extensions>
+    </Filter>
+    <Filter Include="Translation Files">
+      <UniqueIdentifier>{639EADAA-A684-42e4-A9AD-28FC9BCB8F7C}</UniqueIdentifier>
+      <Extensions>ts</Extensions>
+    </Filter>
+  </ItemGroup>
+  <ItemGroup>
+    <QtRcc Include="QtWidgetsApplication1.qrc">
+      <Filter>Resource Files</Filter>
+    </QtRcc>
+    <QtUic Include="QtWidgetsApplication1.ui">
+      <Filter>Form Files</Filter>
+    </QtUic>
+    <QtMoc Include="QtWidgetsApplication1.h">
+      <Filter>Header Files</Filter>
+    </QtMoc>
+    <ClCompile Include="QtWidgetsApplication1.cpp">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+  </ItemGroup>
+  <ItemGroup>
+    <ClCompile Include="main.cpp">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+  </ItemGroup>
+</Project>
\ No newline at end of file
diff --git a/src/tests/concurrency/Solution1/QtWidgetsApplication1/main.cpp b/src/tests/concurrency/Solution1/QtWidgetsApplication1/main.cpp
new file mode 100644
index 00000000..8237fdac
--- /dev/null
+++ b/src/tests/concurrency/Solution1/QtWidgetsApplication1/main.cpp
@@ -0,0 +1,10 @@
+#include "QtWidgetsApplication1.h"
+#include <QtWidgets/QApplication>
+
+int main(int argc, char *argv[])
+{
+    QApplication a(argc, argv);
+    QtWidgetsApplication1 w;
+    w.show();
+    return a.exec();
+}
diff --git a/src/tests/concurrency/Solution1/QtWidgetsApplication2/QtWidgetsApplication2.cpp b/src/tests/concurrency/Solution1/QtWidgetsApplication2/QtWidgetsApplication2.cpp
new file mode 100644
index 00000000..d448405a
--- /dev/null
+++ b/src/tests/concurrency/Solution1/QtWidgetsApplication2/QtWidgetsApplication2.cpp
@@ -0,0 +1,9 @@
+#include "QtWidgetsApplication2.h"
+#include "QtClass.h"
+
+QtWidgetsApplication2::QtWidgetsApplication2(QWidget *parent)
+    : QMainWindow(parent)
+{
+    ui.setupUi(this);
+    qtObject = new QtClass(this);
+}
diff --git a/src/tests/concurrency/Solution1/QtWidgetsApplication2/QtWidgetsApplication2.h b/src/tests/concurrency/Solution1/QtWidgetsApplication2/QtWidgetsApplication2.h
new file mode 100644
index 00000000..8c9701bb
--- /dev/null
+++ b/src/tests/concurrency/Solution1/QtWidgetsApplication2/QtWidgetsApplication2.h
@@ -0,0 +1,18 @@
+#pragma once
+
+#include <QtWidgets/QMainWindow>
+#include "ui_QtWidgetsApplication2.h"
+
+class QtClass;
+
+class QtWidgetsApplication2 : public QMainWindow
+{
+    Q_OBJECT
+
+public:
+    QtWidgetsApplication2(QWidget *parent = Q_NULLPTR);
+
+private:
+    Ui::QtWidgetsApplication2Class ui;
+    QtClass* qtObject;
+};
diff --git a/src/tests/concurrency/Solution1/QtWidgetsApplication2/QtWidgetsApplication2.qrc b/src/tests/concurrency/Solution1/QtWidgetsApplication2/QtWidgetsApplication2.qrc
new file mode 100644
index 00000000..2018e6d2
--- /dev/null
+++ b/src/tests/concurrency/Solution1/QtWidgetsApplication2/QtWidgetsApplication2.qrc
@@ -0,0 +1,4 @@
+<RCC>
+    <qresource prefix="QtWidgetsApplication2">
+    </qresource>
+</RCC>
diff --git a/src/tests/concurrency/Solution1/QtWidgetsApplication2/QtWidgetsApplication2.ui b/src/tests/concurrency/Solution1/QtWidgetsApplication2/QtWidgetsApplication2.ui
new file mode 100644
index 00000000..f9a85f5b
--- /dev/null
+++ b/src/tests/concurrency/Solution1/QtWidgetsApplication2/QtWidgetsApplication2.ui
@@ -0,0 +1,28 @@
+<UI version="4.0" >
+ <class>QtWidgetsApplication2Class</class>
+ <widget class="QMainWindow" name="QtWidgetsApplication2Class" >
+  <property name="objectName" >
+   <string notr="true">QtWidgetsApplication2Class</string>
+  </property>
+  <property name="geometry" >
+   <rect>
+    <x>0</x>
+    <y>0</y>
+    <width>600</width>
+    <height>400</height>
+   </rect>
+  </property>
+  <property name="windowTitle" >
+   <string>QtWidgetsApplication2</string>
+  </property>  <widget class="QMenuBar" name="menuBar" />
+  <widget class="QToolBar" name="mainToolBar" />
+  <widget class="QWidget" name="centralWidget" />
+  <widget class="QStatusBar" name="statusBar" />
+ </widget>
+ <layoutDefault spacing="6" margin="11" />
+ <pixmapfunction></pixmapfunction>
+ <resources>
+   <include location="QtWidgetsApplication2.qrc"/>
+ </resources>
+ <connections/>
+</UI>
diff --git a/src/tests/concurrency/Solution1/QtWidgetsApplication2/QtWidgetsApplication2.vcxproj b/src/tests/concurrency/Solution1/QtWidgetsApplication2/QtWidgetsApplication2.vcxproj
new file mode 100644
index 00000000..0413ccda
--- /dev/null
+++ b/src/tests/concurrency/Solution1/QtWidgetsApplication2/QtWidgetsApplication2.vcxproj
@@ -0,0 +1,115 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project DefaultTargets="Build" ToolsVersion="16.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <ItemGroup Label="ProjectConfigurations">
+    <ProjectConfiguration Include="Debug|x64">
+      <Configuration>Debug</Configuration>
+      <Platform>x64</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Release|x64">
+      <Configuration>Release</Configuration>
+      <Platform>x64</Platform>
+    </ProjectConfiguration>
+  </ItemGroup>
+  <PropertyGroup Label="Globals">
+    <ProjectGuid>{B74596C2-46DC-4615-A6EF-0CB66643BB2B}</ProjectGuid>
+    <Keyword>QtVS_v304</Keyword>
+    <WindowsTargetPlatformVersion Condition="'$(Configuration)|$(Platform)' == 'Debug|x64'">10.0</WindowsTargetPlatformVersion>
+    <WindowsTargetPlatformVersion Condition="'$(Configuration)|$(Platform)' == 'Release|x64'">10.0</WindowsTargetPlatformVersion>
+    <QtMsBuild Condition="Exists('$(MSBuildProjectDirectory)\..\..\..\..\qtmsbuild')"
+      >$([System.IO.Path]::GetFullPath(
+        $(MSBuildProjectDirectory)\..\..\..\..\qtmsbuild\QtMsBuild))</QtMsBuild>
+    <QtMsBuild Condition="'$(QtMsBuild)'=='' OR !Exists('$(QtMsBuild)\qt.targets')">$(MSBuildProjectDirectory)\QtMsBuild</QtMsBuild>
+  </PropertyGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)' == 'Debug|x64'" Label="Configuration">
+    <ConfigurationType>Application</ConfigurationType>
+    <PlatformToolset>v142</PlatformToolset>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)' == 'Release|x64'" Label="Configuration">
+    <ConfigurationType>Application</ConfigurationType>
+    <PlatformToolset>v142</PlatformToolset>
+  </PropertyGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
+  <ImportGroup Condition="Exists('$(QtMsBuild)\qt_defaults.props')">
+    <Import Project="$(QtMsBuild)\qt_defaults.props" />
+  </ImportGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)' == 'Debug|x64'" Label="QtSettings">
+    <QtInstall>$(DefaultQtVersion)</QtInstall>
+    <QtModules>core;gui;widgets</QtModules>
+    <QtBuildConfig>debug</QtBuildConfig>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)' == 'Release|x64'" Label="QtSettings">
+    <QtInstall>$(DefaultQtVersion)</QtInstall>
+    <QtModules>core;gui;widgets</QtModules>
+    <QtBuildConfig>release</QtBuildConfig>
+  </PropertyGroup>
+  <Target Name="QtMsBuildNotFound" BeforeTargets="CustomBuild;ClCompile" Condition="!Exists('$(QtMsBuild)\qt.targets') or !Exists('$(QtMsBuild)\qt.props')">
+    <Message Importance="High" Text="QtMsBuild: could not locate qt.targets, qt.props; project may not build correctly." />
+  </Target>
+  <ImportGroup Label="ExtensionSettings" />
+  <ImportGroup Label="Shared" />
+  <ImportGroup Label="PropertySheets" Condition="'$(Configuration)|$(Platform)' == 'Debug|x64'">
+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
+    <Import Project="..\MyPropertySheet.props" />
+    <Import Project="$(QtMsBuild)\Qt.props" />
+  </ImportGroup>
+  <ImportGroup Label="PropertySheets" Condition="'$(Configuration)|$(Platform)' == 'Release|x64'">
+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
+    <Import Project="..\MyPropertySheet.props" />
+    <Import Project="$(QtMsBuild)\Qt.props" />
+  </ImportGroup>
+  <PropertyGroup Label="UserMacros" />
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)' == 'Debug|x64'">
+    <CopyLocalProjectReference>true</CopyLocalProjectReference>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)' == 'Release|x64'">
+    <CopyLocalProjectReference>true</CopyLocalProjectReference>
+  </PropertyGroup>
+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)' == 'Debug|x64'" Label="Configuration">
+    <ClCompile>
+      <TreatWChar_tAsBuiltInType>true</TreatWChar_tAsBuiltInType>
+      <MultiProcessorCompilation>true</MultiProcessorCompilation>
+      <DebugInformationFormat>ProgramDatabase</DebugInformationFormat>
+      <Optimization>Disabled</Optimization>
+      <RuntimeLibrary>MultiThreadedDebugDLL</RuntimeLibrary>
+    </ClCompile>
+    <Link>
+      <SubSystem>Windows</SubSystem>
+      <GenerateDebugInformation>true</GenerateDebugInformation>
+    </Link>
+  </ItemDefinitionGroup>
+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)' == 'Release|x64'" Label="Configuration">
+    <ClCompile>
+      <TreatWChar_tAsBuiltInType>true</TreatWChar_tAsBuiltInType>
+      <MultiProcessorCompilation>true</MultiProcessorCompilation>
+      <DebugInformationFormat>None</DebugInformationFormat>
+      <Optimization>MaxSpeed</Optimization>
+      <RuntimeLibrary>MultiThreadedDLL</RuntimeLibrary>
+    </ClCompile>
+    <Link>
+      <SubSystem>Windows</SubSystem>
+      <GenerateDebugInformation>false</GenerateDebugInformation>
+    </Link>
+  </ItemDefinitionGroup>
+  <ItemGroup>
+    <QtRcc Include="QtWidgetsApplication2.qrc" />
+    <QtUic Include="QtWidgetsApplication2.ui" />
+    <QtMoc Include="QtWidgetsApplication2.h" />
+    <ClCompile Include="QtWidgetsApplication2.cpp" />
+    <ClCompile Include="main.cpp" />
+  </ItemGroup>
+  <ItemGroup>
+    <ProjectReference Include="..\QtClassLibrary1\QtClassLibrary1.vcxproj">
+      <Project>{ce78ec51-c4a0-465b-a161-21c257bd057b}</Project>
+    </ProjectReference>
+    <ProjectReference Include="..\StaticLib1\StaticLib1.vcxproj">
+      <Project>{8463051a-b32c-43f0-9a77-9f223598aac9}</Project>
+    </ProjectReference>
+  </ItemGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
+  <ImportGroup Condition="Exists('$(QtMsBuild)\qt.targets')">
+    <Import Project="$(QtMsBuild)\qt.targets" />
+  </ImportGroup>
+  <ImportGroup Label="ExtensionTargets">
+  </ImportGroup>
+</Project>
\ No newline at end of file
diff --git a/src/tests/concurrency/Solution1/QtWidgetsApplication2/QtWidgetsApplication2.vcxproj.filters b/src/tests/concurrency/Solution1/QtWidgetsApplication2/QtWidgetsApplication2.vcxproj.filters
new file mode 100644
index 00000000..f8580ae6
--- /dev/null
+++ b/src/tests/concurrency/Solution1/QtWidgetsApplication2/QtWidgetsApplication2.vcxproj.filters
@@ -0,0 +1,44 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <ItemGroup>
+    <Filter Include="Source Files">
+      <UniqueIdentifier>{4FC737F1-C7A5-4376-A066-2A32D752A2FF}</UniqueIdentifier>
+      <Extensions>cpp;c;cc;cxx;def;odl;idl;hpj;bat;asm;asmx</Extensions>
+    </Filter>
+    <Filter Include="Header Files">
+      <UniqueIdentifier>{93995380-89BD-4b04-88EB-625FBE52EBFB}</UniqueIdentifier>
+      <Extensions>h;hh;hpp;hxx;hm;inl;inc;xsd</Extensions>
+    </Filter>
+    <Filter Include="Resource Files">
+      <UniqueIdentifier>{67DA6AB6-F800-4c08-8B7A-83BB121AAD01}</UniqueIdentifier>
+      <Extensions>qrc;rc;ico;cur;bmp;dlg;rc2;rct;bin;rgs;gif;jpg;jpeg;jpe;resx;tiff;tif;png;wav;mfcribbon-ms</Extensions>
+    </Filter>
+    <Filter Include="Form Files">
+      <UniqueIdentifier>{99349809-55BA-4b9d-BF79-8FDBB0286EB3}</UniqueIdentifier>
+      <Extensions>ui</Extensions>
+    </Filter>
+    <Filter Include="Translation Files">
+      <UniqueIdentifier>{639EADAA-A684-42e4-A9AD-28FC9BCB8F7C}</UniqueIdentifier>
+      <Extensions>ts</Extensions>
+    </Filter>
+  </ItemGroup>
+  <ItemGroup>
+    <QtRcc Include="QtWidgetsApplication2.qrc">
+      <Filter>Resource Files</Filter>
+    </QtRcc>
+    <QtUic Include="QtWidgetsApplication2.ui">
+      <Filter>Form Files</Filter>
+    </QtUic>
+    <QtMoc Include="QtWidgetsApplication2.h">
+      <Filter>Header Files</Filter>
+    </QtMoc>
+    <ClCompile Include="QtWidgetsApplication2.cpp">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+  </ItemGroup>
+  <ItemGroup>
+    <ClCompile Include="main.cpp">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+  </ItemGroup>
+</Project>
\ No newline at end of file
diff --git a/src/tests/concurrency/Solution1/QtWidgetsApplication2/main.cpp b/src/tests/concurrency/Solution1/QtWidgetsApplication2/main.cpp
new file mode 100644
index 00000000..8f58a279
--- /dev/null
+++ b/src/tests/concurrency/Solution1/QtWidgetsApplication2/main.cpp
@@ -0,0 +1,10 @@
+#include "QtWidgetsApplication2.h"
+#include <QtWidgets/QApplication>
+
+int main(int argc, char *argv[])
+{
+    QApplication a(argc, argv);
+    QtWidgetsApplication2 w;
+    w.show();
+    return a.exec();
+}
diff --git a/src/tests/concurrency/Solution1/Solution1.sln b/src/tests/concurrency/Solution1/Solution1.sln
new file mode 100644
index 00000000..4069cb33
--- /dev/null
+++ b/src/tests/concurrency/Solution1/Solution1.sln
@@ -0,0 +1,43 @@
+
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio Version 16
+VisualStudioVersion = 16.0.30804.86
+MinimumVisualStudioVersion = 10.0.40219.1
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "QtClassLibrary1", "QtClassLibrary1\QtClassLibrary1.vcxproj", "{CE78EC51-C4A0-465B-A161-21C257BD057B}"
+EndProject
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "QtWidgetsApplication1", "QtWidgetsApplication1\QtWidgetsApplication1.vcxproj", "{806AF248-25F9-4300-9FB3-100E5F79C026}"
+EndProject
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "QtWidgetsApplication2", "QtWidgetsApplication2\QtWidgetsApplication2.vcxproj", "{B74596C2-46DC-4615-A6EF-0CB66643BB2B}"
+EndProject
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "StaticLib1", "StaticLib1\StaticLib1.vcxproj", "{8463051A-B32C-43F0-9A77-9F223598AAC9}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|x64 = Debug|x64
+		Release|x64 = Release|x64
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{CE78EC51-C4A0-465B-A161-21C257BD057B}.Debug|x64.ActiveCfg = Debug|x64
+		{CE78EC51-C4A0-465B-A161-21C257BD057B}.Debug|x64.Build.0 = Debug|x64
+		{CE78EC51-C4A0-465B-A161-21C257BD057B}.Release|x64.ActiveCfg = Release|x64
+		{CE78EC51-C4A0-465B-A161-21C257BD057B}.Release|x64.Build.0 = Release|x64
+		{806AF248-25F9-4300-9FB3-100E5F79C026}.Debug|x64.ActiveCfg = Debug|x64
+		{806AF248-25F9-4300-9FB3-100E5F79C026}.Debug|x64.Build.0 = Debug|x64
+		{806AF248-25F9-4300-9FB3-100E5F79C026}.Release|x64.ActiveCfg = Release|x64
+		{806AF248-25F9-4300-9FB3-100E5F79C026}.Release|x64.Build.0 = Release|x64
+		{B74596C2-46DC-4615-A6EF-0CB66643BB2B}.Debug|x64.ActiveCfg = Debug|x64
+		{B74596C2-46DC-4615-A6EF-0CB66643BB2B}.Debug|x64.Build.0 = Debug|x64
+		{B74596C2-46DC-4615-A6EF-0CB66643BB2B}.Release|x64.ActiveCfg = Release|x64
+		{B74596C2-46DC-4615-A6EF-0CB66643BB2B}.Release|x64.Build.0 = Release|x64
+		{8463051A-B32C-43F0-9A77-9F223598AAC9}.Debug|x64.ActiveCfg = Debug|x64
+		{8463051A-B32C-43F0-9A77-9F223598AAC9}.Debug|x64.Build.0 = Debug|x64
+		{8463051A-B32C-43F0-9A77-9F223598AAC9}.Release|x64.ActiveCfg = Release|x64
+		{8463051A-B32C-43F0-9A77-9F223598AAC9}.Release|x64.Build.0 = Release|x64
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+	GlobalSection(ExtensibilityGlobals) = postSolution
+		SolutionGuid = {76259E50-26CE-4EC6-99CE-B1245F270DD3}
+	EndGlobalSection
+EndGlobal
diff --git a/src/tests/concurrency/Solution1/StaticLib1/Header.h b/src/tests/concurrency/Solution1/StaticLib1/Header.h
new file mode 100644
index 00000000..22475e74
--- /dev/null
+++ b/src/tests/concurrency/Solution1/StaticLib1/Header.h
@@ -0,0 +1,4 @@
+#pragma once
+
+void foobar();
+
diff --git a/src/tests/concurrency/Solution1/StaticLib1/StaticLib1.cpp b/src/tests/concurrency/Solution1/StaticLib1/StaticLib1.cpp
new file mode 100644
index 00000000..6b623059
--- /dev/null
+++ b/src/tests/concurrency/Solution1/StaticLib1/StaticLib1.cpp
@@ -0,0 +1,3 @@
+void foobar()
+{
+}
diff --git a/src/tests/concurrency/Solution1/StaticLib1/StaticLib1.vcxproj b/src/tests/concurrency/Solution1/StaticLib1/StaticLib1.vcxproj
new file mode 100644
index 00000000..77f3c437
--- /dev/null
+++ b/src/tests/concurrency/Solution1/StaticLib1/StaticLib1.vcxproj
@@ -0,0 +1,93 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <ItemGroup Label="ProjectConfigurations">
+    <ProjectConfiguration Include="Debug|x64">
+      <Configuration>Debug</Configuration>
+      <Platform>x64</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Release|x64">
+      <Configuration>Release</Configuration>
+      <Platform>x64</Platform>
+    </ProjectConfiguration>
+  </ItemGroup>
+  <PropertyGroup Label="Globals">
+    <VCProjectVersion>16.0</VCProjectVersion>
+    <Keyword>Win32Proj</Keyword>
+    <ProjectGuid>{8463051a-b32c-43f0-9a77-9f223598aac9}</ProjectGuid>
+    <RootNamespace>StaticLib1</RootNamespace>
+    <WindowsTargetPlatformVersion>10.0</WindowsTargetPlatformVersion>
+  </PropertyGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'" Label="Configuration">
+    <ConfigurationType>StaticLibrary</ConfigurationType>
+    <UseDebugLibraries>true</UseDebugLibraries>
+    <PlatformToolset>v142</PlatformToolset>
+    <CharacterSet>Unicode</CharacterSet>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'" Label="Configuration">
+    <ConfigurationType>StaticLibrary</ConfigurationType>
+    <UseDebugLibraries>false</UseDebugLibraries>
+    <PlatformToolset>v142</PlatformToolset>
+    <WholeProgramOptimization>true</WholeProgramOptimization>
+    <CharacterSet>Unicode</CharacterSet>
+  </PropertyGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
+  <ImportGroup Label="ExtensionSettings">
+  </ImportGroup>
+  <ImportGroup Label="Shared">
+  </ImportGroup>
+  <ImportGroup Label="PropertySheets" Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">
+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
+  </ImportGroup>
+  <ImportGroup Label="PropertySheets" Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
+  </ImportGroup>
+  <PropertyGroup Label="UserMacros" />
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">
+    <LinkIncremental>true</LinkIncremental>
+    <AllProjectIncludesArePublic>true</AllProjectIncludesArePublic>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
+    <LinkIncremental>false</LinkIncremental>
+    <AllProjectIncludesArePublic>true</AllProjectIncludesArePublic>
+  </PropertyGroup>
+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">
+    <ClCompile>
+      <WarningLevel>Level3</WarningLevel>
+      <SDLCheck>true</SDLCheck>
+      <PreprocessorDefinitions>_DEBUG;_LIB;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <ConformanceMode>true</ConformanceMode>
+    </ClCompile>
+    <Link>
+      <SubSystem>
+      </SubSystem>
+      <GenerateDebugInformation>true</GenerateDebugInformation>
+    </Link>
+  </ItemDefinitionGroup>
+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
+    <ClCompile>
+      <WarningLevel>Level3</WarningLevel>
+      <FunctionLevelLinking>true</FunctionLevelLinking>
+      <IntrinsicFunctions>true</IntrinsicFunctions>
+      <SDLCheck>true</SDLCheck>
+      <PreprocessorDefinitions>NDEBUG;_LIB;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <ConformanceMode>true</ConformanceMode>
+    </ClCompile>
+    <Link>
+      <SubSystem>
+      </SubSystem>
+      <EnableCOMDATFolding>true</EnableCOMDATFolding>
+      <OptimizeReferences>true</OptimizeReferences>
+      <GenerateDebugInformation>true</GenerateDebugInformation>
+    </Link>
+  </ItemDefinitionGroup>
+  <ItemGroup>
+    <ClCompile Include="StaticLib1.cpp" />
+  </ItemGroup>
+  <ItemGroup>
+    <ClInclude Include="Header.h" />
+  </ItemGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
+  <ImportGroup Label="ExtensionTargets">
+  </ImportGroup>
+</Project>
\ No newline at end of file
diff --git a/src/tests/concurrency/Solution1/StaticLib1/StaticLib1.vcxproj.filters b/src/tests/concurrency/Solution1/StaticLib1/StaticLib1.vcxproj.filters
new file mode 100644
index 00000000..ce5268c9
--- /dev/null
+++ b/src/tests/concurrency/Solution1/StaticLib1/StaticLib1.vcxproj.filters
@@ -0,0 +1,27 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <ItemGroup>
+    <Filter Include="Source Files">
+      <UniqueIdentifier>{4FC737F1-C7A5-4376-A066-2A32D752A2FF}</UniqueIdentifier>
+      <Extensions>cpp;c;cc;cxx;c++;cppm;ixx;def;odl;idl;hpj;bat;asm;asmx</Extensions>
+    </Filter>
+    <Filter Include="Header Files">
+      <UniqueIdentifier>{93995380-89BD-4b04-88EB-625FBE52EBFB}</UniqueIdentifier>
+      <Extensions>h;hh;hpp;hxx;h++;hm;inl;inc;ipp;xsd</Extensions>
+    </Filter>
+    <Filter Include="Resource Files">
+      <UniqueIdentifier>{67DA6AB6-F800-4c08-8B7A-83BB121AAD01}</UniqueIdentifier>
+      <Extensions>rc;ico;cur;bmp;dlg;rc2;rct;bin;rgs;gif;jpg;jpeg;jpe;resx;tiff;tif;png;wav;mfcribbon-ms</Extensions>
+    </Filter>
+  </ItemGroup>
+  <ItemGroup>
+    <ClCompile Include="StaticLib1.cpp">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+  </ItemGroup>
+  <ItemGroup>
+    <ClInclude Include="Header.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+  </ItemGroup>
+</Project>
\ No newline at end of file
diff --git a/src/tests/concurrency/loop_msbuild.bat b/src/tests/concurrency/loop_msbuild.bat
new file mode 100644
index 00000000..4c98cba4
--- /dev/null
+++ b/src/tests/concurrency/loop_msbuild.bat
@@ -0,0 +1,36 @@
+@ECHO OFF
+
+SET TOTAL=0
+SET FAIL=0
+SET RATE=0
+SET USER_QUIT=0
+SET PAD=..00
+
+:loop
+    CLS
+    SET RATE=%PAD%%RATE%
+    ECHO ################################################################################
+    ECHO # Total: %TOTAL%, Failed: %FAIL%...%RATE:~-4,-2%,%RATE:~-2%%%
+    ECHO ################################################################################
+    IF %USER_QUIT% EQU 1 GOTO quit
+    SET /A "TOTAL+=1"
+    msbuild %* ^
+        /m /bl /v:m /nologo ^
+    && (
+        DEL last_build_ok.binlog 2> NUL
+        COPY msbuild.binlog last_build_ok.binlog > NUL
+    ) || (
+        SET /A "FAIL+=1"
+        COPY msbuild.binlog error_build_%TOTAL%.binlog > NUL
+    )
+    SET /A "RATE=(FAIL*100*100)/(TOTAL)"
+    ECHO ################################################################################
+    CHOICE /C QNOP /N /T 1 /D N /M "# [N]ext / [O]pen Log / [P]ause / [Q]uit ?"
+    IF %ERRORLEVEL% EQU 3 (
+        START "" msbuild.binlog
+        PAUSE
+    )
+    IF %ERRORLEVEL% EQU 4 PAUSE
+    SET USER_QUIT=%ERRORLEVEL%
+    GOTO :loop
+:quit