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Add initial WrapPanel Visibility Tests
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‎UnitTests/UnitTests.UWP/UI/Controls/Test_WrapPanel_Visibility.cs‎

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// Licensed to the .NET Foundation under one or more agreements.
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// The .NET Foundation licenses this file to you under the MIT license.
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// See the LICENSE file in the project root for more information.
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using System.Linq;
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using System.Threading.Tasks;
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using Microsoft.Toolkit.Uwp;
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using Microsoft.Toolkit.Uwp.UI;
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using Microsoft.Toolkit.Uwp.UI.Controls;
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using Microsoft.VisualStudio.TestTools.UnitTesting;
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using Microsoft.VisualStudio.TestTools.UnitTesting.AppContainer;
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using Windows.Foundation;
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using Windows.UI.Xaml;
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using Windows.UI.Xaml.Controls;
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using Windows.UI.Xaml.Markup;
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namespace UnitTests.UI.Controls
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{
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[TestClass]
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public class Test_WrapPanel_Visibility : VisualUITestBase
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{
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[TestCategory("WrapPanel")]
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[TestMethod]
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public async Task Test_WrapPanel_Visibility_Horizontal_First()
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{
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await App.DispatcherQueue.EnqueueAsync(async () =>
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{
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var treeRoot = XamlReader.Load(@"<Page
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xmlns=""http://schemas.microsoft.com/winfx/2006/xaml/presentation""
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xmlns:x=""http://schemas.microsoft.com/winfx/2006/xaml""
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xmlns:controls=""using:Microsoft.Toolkit.Uwp.UI.Controls"">
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<controls:WrapPanel x:Name=""WrapPanel"">
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<Border Width=""150"" Height=""50"" Visibility=""Collapsed""/>
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<Border Width=""100"" Height=""50""/>
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<Border Width=""125"" Height=""50""/>
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<Border Width=""50"" Height=""50""/>
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</controls:WrapPanel>
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</Page>") as FrameworkElement;
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var expected = new (int u, int v, int w, int h)[]
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{
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(0, 0, 0, 0), // Collapsed
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(0, 0, 100, 50),
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(100, 0, 125, 50),
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(225, 0, 50, 50),
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};
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Assert.IsNotNull(treeRoot, "Could not load XAML tree.");
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// Initialize Visual Tree
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await SetTestContentAsync(treeRoot);
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var panel = treeRoot.FindChild("WrapPanel") as WrapPanel;
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Assert.IsNotNull(panel, "Could not find WrapPanel in tree.");
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// Force Layout calculations
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panel.UpdateLayout();
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var children = panel.Children.Select(item => item as FrameworkElement).ToArray();
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Assert.AreEqual(4, panel.Children.Count);
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// Check all children are in expected places.
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for (int i = 0; i < children.Count(); i++)
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{
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var transform = treeRoot.CoordinatesTo(children[i]);
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Assert.AreEqual(expected[i].u, transform.X, $"Child {i} not in expected X location.");
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Assert.AreEqual(expected[i].v, transform.Y, $"Child {i} not in expected Y location.");
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Assert.AreEqual(expected[i].w, children[i].ActualWidth, $"Child {i} not of expected width.");
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Assert.AreEqual(expected[i].h, children[i].ActualHeight, $"Child {i} not of expected height.");
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}
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});
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}
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//// TODO: Add matching tests with spacing inbetween.
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[TestCategory("WrapPanel")]
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[TestMethod]
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public async Task Test_WrapPanel_Visibility_Horizontal_Middle()
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{
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await App.DispatcherQueue.EnqueueAsync(async () =>
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{
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var treeRoot = XamlReader.Load(@"<Page
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xmlns=""http://schemas.microsoft.com/winfx/2006/xaml/presentation""
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xmlns:x=""http://schemas.microsoft.com/winfx/2006/xaml""
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xmlns:controls=""using:Microsoft.Toolkit.Uwp.UI.Controls"">
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<controls:WrapPanel x:Name=""WrapPanel"">
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<Border Width=""150"" Height=""50""/>
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<Border Width=""100"" Height=""50"" Visibility=""Collapsed""/>
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<Border Width=""125"" Height=""50""/>
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<Border Width=""50"" Height=""50""/>
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</controls:WrapPanel>
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</Page>") as FrameworkElement;
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var expected = new (int u, int v, int w, int h)[]
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{
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(0, 0, 150, 50),
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(150, 0, 0, 0), // Collapsed
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(150, 0, 125, 50),
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(275, 0, 50, 50),
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};
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Assert.IsNotNull(treeRoot, "Could not load XAML tree.");
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// Initialize Visual Tree
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await SetTestContentAsync(treeRoot);
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var panel = treeRoot.FindChild("WrapPanel") as WrapPanel;
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Assert.IsNotNull(panel, "Could not find WrapPanel in tree.");
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// Force Layout calculations
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panel.UpdateLayout();
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var children = panel.Children.Select(item => item as FrameworkElement).ToArray();
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Assert.AreEqual(4, panel.Children.Count);
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// Check all children are in expected places.
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for (int i = 0; i < children.Count(); i++)
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{
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var transform = treeRoot.CoordinatesTo(children[i]);
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Assert.AreEqual(expected[i].u, transform.X, $"Child {i} not in expected X location.");
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Assert.AreEqual(expected[i].v, transform.Y, $"Child {i} not in expected Y location.");
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Assert.AreEqual(expected[i].w, children[i].ActualWidth, $"Child {i} not of expected width.");
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Assert.AreEqual(expected[i].h, children[i].ActualHeight, $"Child {i} not of expected height.");
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}
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});
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}
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[TestCategory("WrapPanel")]
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[TestMethod]
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public async Task Test_WrapPanel_Visibility_Horizontal_Last()
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{
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await App.DispatcherQueue.EnqueueAsync(async () =>
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{
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var treeRoot = XamlReader.Load(@"<Page
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xmlns=""http://schemas.microsoft.com/winfx/2006/xaml/presentation""
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xmlns:x=""http://schemas.microsoft.com/winfx/2006/xaml""
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xmlns:controls=""using:Microsoft.Toolkit.Uwp.UI.Controls"">
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<controls:WrapPanel x:Name=""WrapPanel"">
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<Border Width=""150"" Height=""50""/>
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<Border Width=""100"" Height=""50""/>
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<Border Width=""125"" Height=""50""/>
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<Border Width=""50"" Height=""50"" Visibility=""Collapsed""/>
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</controls:WrapPanel>
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</Page>") as FrameworkElement;
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var expected = new (int u, int v, int w, int h)[]
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{
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(0, 0, 150, 50),
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(150, 0, 100, 50),
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(250, 0, 125, 50),
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(375, 0, 0, 0), // Collapsed
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};
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Assert.IsNotNull(treeRoot, "Could not load XAML tree.");
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// Initialize Visual Tree
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await SetTestContentAsync(treeRoot);
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var panel = treeRoot.FindChild("WrapPanel") as WrapPanel;
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Assert.IsNotNull(panel, "Could not find WrapPanel in tree.");
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// Force Layout calculations
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panel.UpdateLayout();
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var children = panel.Children.Select(item => item as FrameworkElement).ToArray();
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Assert.AreEqual(4, panel.Children.Count);
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// Check all children are in expected places.
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for (int i = 0; i < children.Count(); i++)
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{
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var transform = treeRoot.CoordinatesTo(children[i]);
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Assert.AreEqual(expected[i].u, transform.X, $"Child {i} not in expected X location.");
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Assert.AreEqual(expected[i].v, transform.Y, $"Child {i} not in expected Y location.");
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Assert.AreEqual(expected[i].w, children[i].ActualWidth, $"Child {i} not of expected width.");
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Assert.AreEqual(expected[i].h, children[i].ActualHeight, $"Child {i} not of expected height.");
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}
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});
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}
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//// TODO: Add tests for wrapping lines based on size.
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//// TODO: Add a test with StretchChild behavior as well after...
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}
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}

‎UnitTests/UnitTests.UWP/UnitTests.UWP.csproj‎

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<Compile Include="UI\Controls\Test_UniformGrid_RowColDefinitions.cs" />
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<Compile Include="UI\Controls\Test_UniformGrid_FreeSpots.cs" />
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<Compile Include="UI\Controls\Test_UniformGrid_Dimensions.cs" />
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<Compile Include="UI\Controls\Test_WrapPanel_Visibility.cs" />
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<Compile Include="UI\Controls\Test_WrapPanel_BasicLayout.cs" />
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<Compile Include="UI\Person.cs" />
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<Compile Include="UI\Test_AdvancedCollectionView.cs" />

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