[FZ Editor]Add tests to editor #197 + feedback (#29051)

* here are the tests for the fancy zones

* Wrote tests for GridLayoutModel

* Move FancyZonesEditor tests to right place, tests for default layout model

* fixed SettingTheVerticalLayoutShouldBeTheDefault test

* removed coverlet in the test project

* Fixes for comments on pr

* squashed and updated for comments

* Added the test to the pipeline

---------

Co-authored-by: Drew Gordon <andrewbengordon@gmail.com>
Co-authored-by: Caleb Wightman <agentcboy@gmail.com>

src/modules/fancyzones/UnitTests-FancyZonesEditor/DefaultLayoutsModelTests.cs

@@ -0,0 +1,59 @@
+// 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.
+using FancyZonesEditor.Models;
+
+namespace UnitTestsFancyZonesEditor;
+
+[TestClass]
+public class DefaultLayoutsModelTests
+{
+    [TestMethod]
+    public void LayoutCapacityShouldBeNumberOfMonitorConfigurations()
+    {
+        var defaultLayoutsModel = new DefaultLayoutsModel();
+        var expectedOptionCount = Enum.GetValues(typeof(MonitorConfigurationType)).Length;
+
+        var actualCapacity = defaultLayoutsModel.Layouts.Capacity;
+
+        Assert.AreEqual(expectedOptionCount, actualCapacity);
+    }
+
+    [TestMethod]
+    public void OverridingLayoutClearsOldDefault()
+    {
+        var defaultLayoutsModel = new DefaultLayoutsModel();
+        GridLayoutModel firstLayout = new GridLayoutModel();
+        CanvasLayoutModel secondLayout = new CanvasLayoutModel("steve");
+
+        defaultLayoutsModel.Set(firstLayout, MonitorConfigurationType.Horizontal);
+        Assert.AreEqual(defaultLayoutsModel.Layouts[(int)MonitorConfigurationType.Horizontal], firstLayout);
+
+        defaultLayoutsModel.Set(secondLayout, MonitorConfigurationType.Horizontal);
+        Assert.AreNotEqual(defaultLayoutsModel.Layouts[(int)MonitorConfigurationType.Horizontal], firstLayout);
+        Assert.AreEqual(defaultLayoutsModel.Layouts[(int)MonitorConfigurationType.Horizontal], secondLayout);
+    }
+
+    [TestMethod]
+    public void SettingTheVerticalLayoutShouldBeTheDefault()
+    {
+        var defaultLayoutsModel = new DefaultLayoutsModel();
+        GridLayoutModel firstLayout = new GridLayoutModel();
+        defaultLayoutsModel.Set(firstLayout, MonitorConfigurationType.Horizontal);
+        defaultLayoutsModel.Set(firstLayout, MonitorConfigurationType.Vertical);
+
+        Assert.AreEqual(defaultLayoutsModel.Layouts[(int)MonitorConfigurationType.Vertical], firstLayout);
+    }
+
+    [TestMethod]
+    public void RestoringLayoutShouldSetLayouts()
+    {
+        var defaultLayoutsModel = new DefaultLayoutsModel();
+        GridLayoutModel firstLayout = new GridLayoutModel();
+        CanvasLayoutModel secondLayout = new CanvasLayoutModel("steve");
+        var restoredLayouts = new List<LayoutModel> { firstLayout, secondLayout };
+        defaultLayoutsModel.Restore(restoredLayouts);
+
+        CollectionAssert.AreEqual(defaultLayoutsModel.Layouts, restoredLayouts);
+    }
+}

src/modules/fancyzones/UnitTests-FancyZonesEditor/GridLayoutModelTests.cs

@@ -0,0 +1,95 @@
+// 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.
+
+using FancyZonesEditor.Models;
+
+namespace UnitTestsFancyZonesEditor;
+
+[TestClass]
+public class GridLayoutModelTests
+{
+    [TestMethod]
+    public void EmptyGridLayoutModelIsNotValid()
+    {
+        GridLayoutModel gridLayoutModel = new GridLayoutModel();
+        Assert.IsFalse(gridLayoutModel.IsModelValid());
+    }
+
+    [TestMethod]
+    public void GridLayoutModelWithInvalidRowAndColumnCountsIsNotValid()
+    {
+        GridLayoutModel gridLayoutModel = new GridLayoutModel();
+        gridLayoutModel.Rows = 0;
+        gridLayoutModel.Columns = 0;
+        Assert.IsFalse(gridLayoutModel.IsModelValid());
+    }
+
+    [TestMethod]
+    public void GridLayoutModelWithInvalidRowPercentsIsNotValid()
+    {
+        GridLayoutModel gridLayoutModel = new GridLayoutModel();
+        gridLayoutModel.Rows = 1;
+        gridLayoutModel.Columns = 1;
+        gridLayoutModel.RowPercents = new List<int> { 0 }; // Invalid percentage
+        Assert.IsFalse(gridLayoutModel.IsModelValid());
+    }
+
+    [TestMethod]
+    public void GridLayoutModelWithInvalidColumnPercentsIsNotValid()
+    {
+        GridLayoutModel gridLayoutModel = new GridLayoutModel();
+        gridLayoutModel.Rows = 1;
+        gridLayoutModel.Columns = 1;
+        gridLayoutModel.ColumnPercents = new List<int> { 0 }; // Invalid percentage
+        Assert.IsFalse(gridLayoutModel.IsModelValid());
+    }
+
+    [TestMethod]
+    public void GridLayoutModelWithInvalidCellChildMapLengthIsNotValid()
+    {
+        GridLayoutModel gridLayoutModel = new GridLayoutModel();
+        gridLayoutModel.Rows = 2;
+        gridLayoutModel.Columns = 2;
+        gridLayoutModel.CellChildMap = new int[2, 1]; // Invalid length
+        Assert.IsFalse(gridLayoutModel.IsModelValid());
+    }
+
+    [TestMethod]
+    public void GridLayoutModelWithInvalidZoneCountIsNotValid()
+    {
+        GridLayoutModel gridLayoutModel = new GridLayoutModel();
+        gridLayoutModel.Rows = 2;
+        gridLayoutModel.Columns = 2;
+        gridLayoutModel.CellChildMap = new int[,]
+        {
+            { 1, 2 },
+            { 3, 4 },
+        }; // Invalid zone count
+        Assert.IsFalse(gridLayoutModel.IsModelValid());
+    }
+
+    [TestMethod]
+    public void GridLayoutModelWithValidPropertiesIsValid()
+    {
+        GridLayoutModel gridLayoutModel = new GridLayoutModel();
+
+        // Set valid row and column counts
+        gridLayoutModel.Rows = 2;
+        gridLayoutModel.Columns = 2;
+
+        // Set valid percentages for rows and columns
+        // Should add up to 10000
+        gridLayoutModel.RowPercents = new List<int> { 5000, 5000 };
+        gridLayoutModel.ColumnPercents = new List<int> { 5000, 5000 };
+
+        // Set a valid CellChildMap
+        gridLayoutModel.CellChildMap = new int[,]
+        {
+            { 0, 1 },
+            { 2, 3 },
+        }; // corresponds to 4 zones
+
+        Assert.IsTrue(gridLayoutModel.IsModelValid(), "GridLayoutModel with valid properties should be valid.");
+    }
+}

src/modules/fancyzones/UnitTests-FancyZonesEditor/UnitTests-FancyZonesEditor.csproj

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+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>net7.0-windows10.0.20348.0</TargetFramework>
+    <TargetPlatformMinVersion>10.0.19041.0</TargetPlatformMinVersion>
+    <SupportedOSPlatformVersion>10.0.19041.0</SupportedOSPlatformVersion>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <IsPackable>false</IsPackable>
+    <Nullable>enable</Nullable>
+
+    <IsPackable>false</IsPackable>
+    <IsTestProject>true</IsTestProject>
+    <OutputPath>..\..\..\..\$(Platform)\$(Configuration)\tests\UnitTest-FancyZonesEditor\</OutputPath>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="Microsoft.Windows.CsWinRT" />
+    <PackageReference Include="Microsoft.NET.Test.Sdk" />
+    <PackageReference Include="MSTest.TestAdapter" />
+    <PackageReference Include="MSTest.TestFramework" />
+    <PackageReference Include="System.IO.Abstractions" />
+    <PackageReference Include="System.IO.Abstractions.TestingHelpers" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\editor\FancyZonesEditor\FancyZonesEditor.csproj" />
+  </ItemGroup>
+
+</Project>

src/modules/fancyzones/UnitTests-FancyZonesEditor/Usings.cs

@@ -0,0 +1,5 @@
+// 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.
+
+global using Microsoft.VisualStudio.TestTools.UnitTesting;