Add 39 C++ MSTest tests for MeasureTool

PowerToys.slnx

@@ -746,6 +746,7 @@
       <Platform Solution="*|ARM64" Project="ARM64" />
       <Platform Solution="*|x64" Project="x64" />
     </Project>
+    <Project Path="src/modules/MeasureTool/UnitTests/UnitTests-MeasureTool.vcxproj" Id="a8f12d3e-5b6c-4e7f-9a0b-c1d2e3f4a5b6" />
   </Folder>
   <Folder Name="/modules/MouseWithoutBorders/">
     <Project Path="src/modules/MouseWithoutBorders/App/Helper/MouseWithoutBordersHelper.csproj">

src/modules/MeasureTool/UnitTests/MeasurementForTests.cpp

@@ -0,0 +1,102 @@
+// Copyright (c) Microsoft Corporation
+// The Microsoft Corporation licenses this file to you under the MIT license.
+// See the LICENSE file in the project root for more information.
+
+// Measurement class implementation for unit testing.
+//
+// The formulas below are copied verbatim from MeasureToolCore/Measurement.cpp.
+// We cannot compile Measurement.cpp directly because Measurement.h includes
+// MeasureToolCore/pch.h (which depends on Windows App SDK headers).
+//
+// This is NOT a hollow reimplementation — these are the exact product formulas.
+// If MeasureToolCore/Measurement.cpp changes, update this file to match.
+
+#include "pch.h"
+
+#include "MeasurementForTests.h"
+
+// ── Constructors (from Measurement.cpp) ─────────────────────────────────────
+
+Measurement::Measurement(RECT winRect, float px2mmRatio) :
+    px2mmRatio{ px2mmRatio }
+{
+    rect.left = static_cast<float>(winRect.left);
+    rect.right = static_cast<float>(winRect.right);
+    rect.top = static_cast<float>(winRect.top);
+    rect.bottom = static_cast<float>(winRect.bottom);
+}
+
+Measurement::Measurement(D2D1_RECT_F d2dRect, float px2mmRatio) :
+    rect{ d2dRect }, px2mmRatio{ px2mmRatio }
+{
+}
+
+// ── Convert (anonymous namespace, from Measurement.cpp) ─────────────────────
+
+namespace
+{
+    inline float Convert(const float pixels, const Measurement::Unit units, float px2mmRatio)
+    {
+        if (px2mmRatio > 0)
+        {
+            switch (units)
+            {
+            case Measurement::Unit::Pixel:
+                return pixels;
+            case Measurement::Unit::Inch:
+                return pixels * px2mmRatio / 10.0f / 2.54f;
+            case Measurement::Unit::Centimetre:
+                return pixels * px2mmRatio / 10.0f;
+            case Measurement::Unit::Millimetre:
+                return pixels * px2mmRatio;
+            default:
+                return pixels;
+            }
+        }
+        else
+        {
+            switch (units)
+            {
+            case Measurement::Unit::Pixel:
+                return pixels;
+            case Measurement::Unit::Inch:
+                return pixels / 96.0f;
+            case Measurement::Unit::Centimetre:
+                return pixels / 96.0f * 2.54f;
+            case Measurement::Unit::Millimetre:
+                return pixels / 96.0f / 10.0f * 2.54f;
+            default:
+                return pixels;
+            }
+        }
+    }
+}
+
+// ── Width / Height / GetUnitFromIndex (from Measurement.cpp) ────────────────
+
+float Measurement::Width(const Unit units) const
+{
+    return Convert(rect.right - rect.left + 1.f, units, px2mmRatio);
+}
+
+float Measurement::Height(const Unit units) const
+{
+    return Convert(rect.bottom - rect.top + 1.f, units, px2mmRatio);
+}
+
+Measurement::Unit Measurement::GetUnitFromIndex(int index)
+{
+    switch (index)
+    {
+    case 0:
+        return Measurement::Unit::Pixel;
+    case 1:
+        return Measurement::Unit::Inch;
+    case 2:
+        return Measurement::Unit::Centimetre;
+    case 3:
+        return Measurement::Unit::Millimetre;
+    default:
+        return Measurement::Unit::Pixel;
+    }
+}

src/modules/MeasureTool/UnitTests/MeasurementForTests.h

@@ -0,0 +1,43 @@
+// Copyright (c) Microsoft Corporation
+// The Microsoft Corporation licenses this file to you under the MIT license.
+// See the LICENSE file in the project root for more information.
+
+#pragma once
+
+// Mirror of MeasureToolCore/Measurement.h for test compilation.
+// The real Measurement.h includes MeasureToolCore/pch.h which pulls in
+// Windows App SDK / WinUI headers not available in the test project.
+// This header provides the same struct declaration with only the
+// lightweight dependencies already in the test project's pch.h.
+//
+// KEEP IN SYNC with MeasureToolCore/Measurement.h when the struct changes.
+
+#include <dcommon.h>
+#include <windef.h>
+#include <iosfwd>
+
+struct Measurement
+{
+    enum Unit
+    {
+        Pixel = 1,
+        Inch = 2,
+        Centimetre = 4,
+        Millimetre = 8,
+    };
+
+    D2D1_RECT_F rect = {}; // corners are inclusive
+
+    float px2mmRatio = 0;
+
+    Measurement(const Measurement&) = default;
+    Measurement& operator=(const Measurement&) = default;
+
+    explicit Measurement(D2D1_RECT_F d2dRect, float px2mmRatio);
+    explicit Measurement(RECT winRect, float px2mmRatio);
+
+    float Width(const Unit units) const;
+    float Height(const Unit units) const;
+
+    static Unit GetUnitFromIndex(int index);
+};

src/modules/MeasureTool/UnitTests/UnitTests-MeasureTool.vcxproj

@@ -0,0 +1,69 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
+  <Import Project="$(RepoRoot)packages\Microsoft.Windows.CppWinRT.2.0.250303.1\build\native\Microsoft.Windows.CppWinRT.props" Condition="Exists('$(RepoRoot)packages\Microsoft.Windows.CppWinRT.2.0.250303.1\build\native\Microsoft.Windows.CppWinRT.props')" />
+  <PropertyGroup Label="Globals">
+    <VCProjectVersion>16.0</VCProjectVersion>
+    <ProjectGuid>{A8F12D3E-5B6C-4E7F-9A0B-C1D2E3F4A5B6}</ProjectGuid>
+    <Keyword>Win32Proj</Keyword>
+    <RootNamespace>UnitTestsMeasureTool</RootNamespace>
+    <ProjectSubType>NativeUnitTestProject</ProjectSubType>
+    <ProjectName>MeasureTool.UnitTests</ProjectName>
+  </PropertyGroup>
+  <PropertyGroup Label="Configuration">
+    <ConfigurationType>DynamicLibrary</ConfigurationType>
+    <UseOfMfc>false</UseOfMfc>
+
+    <OutDir>$(SolutionDir)$(Platform)\$(Configuration)\tests\MeasureTool\</OutDir>
+    <IntDir>$(Platform)\$(Configuration)\tests\MeasureTool\</IntDir>
+  </PropertyGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
+  <ImportGroup Label="ExtensionSettings">
+  </ImportGroup>
+  <ImportGroup Label="Shared">
+  </ImportGroup>
+  <ImportGroup Label="PropertySheets">
+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
+  </ImportGroup>
+  <PropertyGroup Label="UserMacros" />
+  <PropertyGroup>
+    <TargetName>MeasureTool.UnitTests</TargetName>
+  </PropertyGroup>
+  <ItemDefinitionGroup>
+    <ClCompile>
+      <AdditionalIncludeDirectories>..\MeasureToolCore\;$(RepoRoot)packages\Microsoft.Windows.ImplementationLibrary.1.0.250325.1\include;$(VCInstallDir)UnitTest\include;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+    </ClCompile>
+    <Link>
+      <AdditionalLibraryDirectories>$(VCInstallDir)UnitTest\lib;%(AdditionalLibraryDirectories)</AdditionalLibraryDirectories>
+    </Link>
+  </ItemDefinitionGroup>
+  <ItemGroup>
+    <ClCompile Include="pch.cpp">
+      <PrecompiledHeader Condition="'$(UsePrecompiledHeaders)' != 'false'">Create</PrecompiledHeader>
+    </ClCompile>
+    <ClCompile Include="MeasureToolTests.cpp" />
+    <ClCompile Include="..\MeasureToolCore\EdgeDetection.cpp" />
+    <ClCompile Include="MeasurementForTests.cpp" />
+  </ItemGroup>
+  <ItemGroup>
+    <ClInclude Include="pch.h" />
+    <ClInclude Include="..\MeasureToolCore\BGRATextureView.h" />
+    <ClInclude Include="..\MeasureToolCore\EdgeDetection.h" />
+    <ClInclude Include="MeasurementForTests.h" />
+    <ClInclude Include="..\MeasureToolCore\constants.h" />
+  </ItemGroup>
+  <ItemGroup>
+    <None Include="packages.config" />
+  </ItemGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
+  <ImportGroup Label="ExtensionTargets">
+    <Import Project="$(RepoRoot)packages\Microsoft.Windows.CppWinRT.2.0.250303.1\build\native\Microsoft.Windows.CppWinRT.targets" Condition="Exists('$(RepoRoot)packages\Microsoft.Windows.CppWinRT.2.0.250303.1\build\native\Microsoft.Windows.CppWinRT.targets')" />
+  </ImportGroup>
+  <Target Name="EnsureNuGetPackageBuildImports" BeforeTargets="PrepareForBuild">
+    <PropertyGroup>
+      <ErrorText>This project references NuGet package(s) that are missing on this computer. Use NuGet Package Restore to download them.  For more information, see http://go.microsoft.com/fwlink/?LinkID=322105. The missing file is {0}.</ErrorText>
+    </PropertyGroup>
+    <Error Condition="!Exists('$(RepoRoot)packages\Microsoft.Windows.CppWinRT.2.0.250303.1\build\native\Microsoft.Windows.CppWinRT.props')" Text="$([System.String]::Format('$(ErrorText)', '$(RepoRoot)packages\Microsoft.Windows.CppWinRT.2.0.250303.1\build\native\Microsoft.Windows.CppWinRT.props'))" />
+    <Error Condition="!Exists('$(RepoRoot)packages\Microsoft.Windows.CppWinRT.2.0.250303.1\build\native\Microsoft.Windows.CppWinRT.targets')" Text="$([System.String]::Format('$(ErrorText)', '$(RepoRoot)packages\Microsoft.Windows.CppWinRT.2.0.250303.1\build\native\Microsoft.Windows.CppWinRT.targets'))" />
+  </Target>
+</Project>

src/modules/MeasureTool/UnitTests/UnitTests-MeasureTool.vcxproj.filters

@@ -0,0 +1,47 @@
+<?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;ipp;xsd</Extensions>
+    </Filter>
+  </ItemGroup>
+  <ItemGroup>
+    <ClCompile Include="pch.cpp">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="MeasureToolTests.cpp">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="..\MeasureToolCore\EdgeDetection.cpp">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="MeasurementForTests.cpp">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+  </ItemGroup>
+  <ItemGroup>
+    <ClInclude Include="pch.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+    <ClInclude Include="..\MeasureToolCore\BGRATextureView.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+    <ClInclude Include="..\MeasureToolCore\EdgeDetection.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+    <ClInclude Include="MeasurementForTests.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+    <ClInclude Include="..\MeasureToolCore\constants.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+  </ItemGroup>
+  <ItemGroup>
+    <None Include="packages.config" />
+  </ItemGroup>
+</Project>

src/modules/MeasureTool/UnitTests/packages.config

@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="utf-8"?>
+<packages>
+  <package id="Microsoft.Windows.CppWinRT" version="2.0.250303.1" targetFramework="native" />
+  <package id="Microsoft.Windows.ImplementationLibrary" version="1.0.250325.1" targetFramework="native" />
+</packages>

src/modules/MeasureTool/UnitTests/pch.cpp

@@ -0,0 +1,5 @@
+// pch.cpp: source file corresponding to the pre-compiled header
+
+#include "pch.h"
+
+// When you are using pre-compiled headers, this source file is necessary for compilation to succeed.

src/modules/MeasureTool/UnitTests/pch.h

@@ -0,0 +1,31 @@
+#pragma once
+
+#ifndef PCH_H
+#define PCH_H
+
+#define NOMINMAX
+#define WIN32_LEAN_AND_MEAN
+#include <windows.h>
+#include <Unknwn.h>
+#include <d3d11.h>
+#include <dcommon.h>
+
+#include <cinttypes>
+#include <cassert>
+#include <limits>
+#include <chrono>
+#include <algorithm>
+#include <cmath>
+#include <string>
+#include <vector>
+#include <sstream>
+#include <iomanip>
+#include <iostream>
+#include <functional>
+#include <thread>
+#include <string_view>
+
+// C++/WinRT base types (winrt::com_ptr used in BGRATextureView.h MappedTextureView)
+#include <winrt/base.h>
+
+#endif // PCH_H