ImageTests Class

Delta Engine Documentation

The image tests here are limited to loading and integration tests, not visual tests, which you can find in DeltaEngine.Rendering2D.Tests.SpriteTests. View code on GitHub

Inheritance Hierarchy

System Object
DeltaEngine.Platforms TestWithMocksOrVisually
DeltaEngine.Graphics.Tests ImageTests

Namespace: DeltaEngine.Graphics.Tests
Assembly: DeltaEngine.Graphics.Tests (in DeltaEngine.Graphics.Tests.dll) Version: 1.1.1.0 (1.1.1)

Syntax

C++

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public class ImageTests : TestWithMocksOrVisually

public class ImageTests : TestWithMocksOrVisually

Public Class ImageTests 
	Inherits TestWithMocksOrVisually

Public Class ImageTests 
	Inherits TestWithMocksOrVisually

public ref class ImageTests : public TestWithMocksOrVisually

public ref class ImageTests : public TestWithMocksOrVisually

type ImageTests =  
    class 
        inherit TestWithMocksOrVisually 
    end

type ImageTests =  
    class 
        inherit TestWithMocksOrVisually 
    end

The ImageTests type exposes the following members.

Constructors

	Name	Description
	ImageTests	Initializes a new instance of the ImageTests class

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Methods

	Name	Description
	AdvanceTimeAndUpdateEntities	(Inherited from TestWithMocksOrVisually.)
	BlendModes	View code on GitHub
	CreatingTwoImagesWithTheSameDataAlwaysResultsInDifferentImages	View code on GitHub
	DrawCustomImageFromBytes	View code on GitHub
	DrawCustomImageFromColorClickToChangeIt	View code on GitHub
	DrawCustomImageHalfRedHalfGold	From http://forum.deltaengine.net/yaf_postsm6203_Dynamic-textures---v--0-9-8-2.aspx#post6203 View code on GitHub
	DrawCustomImageHalfTransparent	View code on GitHub
	DrawDefaultTexture	View code on GitHub
	DrawOpaqueImageWithVertexColors	View code on GitHub
	FillCustomImageWitDifferentSizeThanImageCausesException	View code on GitHub
	InitializeResolver	(Inherited from TestWithMocksOrVisually.)
	LoadExistingImage	View code on GitHub
	RegisterMock T	(Inherited from TestWithMocksOrVisually.)
	Resolve T	(Inherited from TestWithMocksOrVisually.)
	RunAfterFirstFrame	(Inherited from TestWithMocksOrVisually.)
	RunTestAndDisposeResolverWhenDone	(Inherited from TestWithMocksOrVisually.)
	ShouldThrowIfImageNotLoadedWithDebuggerAttached	View code on GitHub

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Properties

	Name	Description
	IsMockResolver	(Inherited from TestWithMocksOrVisually.)

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Examples

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[Test, ApproveFirstFrameScreenshot]
public void DrawOpaqueImageWithVertexColors()
{
    Resolve<Window>().BackgroundColor = Color.CornflowerBlue;
    new ColoredSprite(ContentLoader.Load<Image>("DeltaEngineLogoOpaque"));
    RunAfterFirstFrame(
        () => Assert.AreEqual(4, Resolve<Drawing>().NumberOfDynamicVerticesDrawnThisFrame));
}

[Test, ApproveFirstFrameScreenshot]
public void DrawOpaqueImageWithVertexColors()
{
    Resolve<Window>().BackgroundColor = Color.CornflowerBlue;
    new ColoredSprite(ContentLoader.Load<Image>("DeltaEngineLogoOpaque"));
    RunAfterFirstFrame(
        () => Assert.AreEqual(4, Resolve<Drawing>().NumberOfDynamicVerticesDrawnThisFrame));
}

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[Test, CloseAfterFirstFrame]
public void LoadExistingImage()
{
    var image = ContentLoader.Load<Image>("DeltaEngineLogoOpaque");
    Assert.AreEqual("DeltaEngineLogoOpaque", image.Name);
    Assert.IsFalse(image.IsDisposed);
    Assert.AreEqual(new Size(128, 128), image.PixelSize);
}

[Test, CloseAfterFirstFrame]
public void LoadExistingImage()
{
    var image = ContentLoader.Load<Image>("DeltaEngineLogoOpaque");
    Assert.AreEqual("DeltaEngineLogoOpaque", image.Name);
    Assert.IsFalse(image.IsDisposed);
    Assert.AreEqual(new Size(128, 128), image.PixelSize);
}

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[Test, CloseAfterFirstFrame]
public void ShouldThrowIfImageNotLoadedWithDebuggerAttached()
{
    //ncrunch: no coverage start 
    if (Debugger.IsAttached)
        Assert.Throws<ContentLoader.ContentNotFound>(
            () => ContentLoader.Load<Image>("UnavailableImage"));
    //ncrunch: no coverage end
}

[Test, CloseAfterFirstFrame]
public void ShouldThrowIfImageNotLoadedWithDebuggerAttached()
{
    //ncrunch: no coverage start 
    if (Debugger.IsAttached)
        Assert.Throws<ContentLoader.ContentNotFound>(
            () => ContentLoader.Load<Image>("UnavailableImage"));
    //ncrunch: no coverage end
}

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[Test, ApproveFirstFrameScreenshot]
public void DrawDefaultTexture()
{
    Resolve<Window>().BackgroundColor = Color.CornflowerBlue;
    new ColoredSprite(ContentLoader.Load<Image>("UnavailableImage"));
    RunAfterFirstFrame(
        () => Assert.AreEqual(4, Resolve<Drawing>().NumberOfDynamicVerticesDrawnThisFrame));
}

[Test, ApproveFirstFrameScreenshot]
public void DrawDefaultTexture()
{
    Resolve<Window>().BackgroundColor = Color.CornflowerBlue;
    new ColoredSprite(ContentLoader.Load<Image>("UnavailableImage"));
    RunAfterFirstFrame(
        () => Assert.AreEqual(4, Resolve<Drawing>().NumberOfDynamicVerticesDrawnThisFrame));
}

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[Test, ApproveFirstFrameScreenshot]
public void DrawCustomImageFromColorClickToChangeIt()
{
    var customImage = ContentLoader.Create<Image>(new ImageCreationData(new Size(8, 8)));
    customImage.Fill(Color.Purple);
    new SolidSprite(customImage);
    new Command(Command.Click, () => customImage.Fill(Color.GetRandomColor()));
}

[Test, ApproveFirstFrameScreenshot]
public void DrawCustomImageFromColorClickToChangeIt()
{
    var customImage = ContentLoader.Create<Image>(new ImageCreationData(new Size(8, 8)));
    customImage.Fill(Color.Purple);
    new SolidSprite(customImage);
    new Command(Command.Click, () => customImage.Fill(Color.GetRandomColor()));
}

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[Test, ApproveFirstFrameScreenshot]
public void DrawCustomImageFromBytes()
{
    var customImage = ContentLoader.Create<Image>(new ImageCreationData(new Size(8, 8)));
    var bytes = new byte[8 * 8 * 4];
    var color = Color.Purple;
    for (int i = 0; i < 8 * 8; i++)
    {
        bytes[i * 4] = color.R;
        bytes[i * 4 + 1] = color.G;
        bytes[i * 4 + 2] = color.B;
    }
    customImage.FillRgbaData(bytes);
    new SolidSprite(customImage);
}

[Test, ApproveFirstFrameScreenshot]
public void DrawCustomImageFromBytes()
{
    var customImage = ContentLoader.Create<Image>(new ImageCreationData(new Size(8, 8)));
    var bytes = new byte[8 * 8 * 4];
    var color = Color.Purple;
    for (int i = 0; i < 8 * 8; i++)
    {
        bytes[i * 4] = color.R;
        bytes[i * 4 + 1] = color.G;
        bytes[i * 4 + 2] = color.B;
    }
    customImage.FillRgbaData(bytes);
    new SolidSprite(customImage);
}

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/// <summary> 
/// From http://forum.deltaengine.net/yaf_postsm6203_Dynamic-textures---v--0-9-8-2.aspx#post6203 
/// </summary>
[Test, ApproveFirstFrameScreenshot]
public void DrawCustomImageHalfRedHalfGold()
{
    var customImage = ContentLoader.Create<Image>(new ImageCreationData(new Size(64, 64)));
    var colors = new Color[64 * 64];
    for (int i = 0; i < colors.Length; i++)
        colors[i] = i < colors.Length / 2 ? Color.Red : Color.Gold;
    customImage.Fill(colors);
    new SolidSprite(customImage);
}

/// <summary> 
/// From http://forum.deltaengine.net/yaf_postsm6203_Dynamic-textures---v--0-9-8-2.aspx#post6203 
/// </summary>
[Test, ApproveFirstFrameScreenshot]
public void DrawCustomImageHalfRedHalfGold()
{
    var customImage = ContentLoader.Create<Image>(new ImageCreationData(new Size(64, 64)));
    var colors = new Color[64 * 64];
    for (int i = 0; i < colors.Length; i++)
        colors[i] = i < colors.Length / 2 ? Color.Red : Color.Gold;
    customImage.Fill(colors);
    new SolidSprite(customImage);
}

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[Test, ApproveFirstFrameScreenshot]
public void DrawCustomImageHalfTransparent()
{
    Resolve<Window>().BackgroundColor = Color.Yellow;
    var customImage = ContentLoader.Create<Image>(new ImageCreationData(new Size(64, 64)));
    customImage.Fill(new Color(0, 0, 0, 0.5f));
    customImage.BlendMode = BlendMode.Normal;
    new SolidSprite(customImage);
}

[Test, ApproveFirstFrameScreenshot]
public void DrawCustomImageHalfTransparent()
{
    Resolve<Window>().BackgroundColor = Color.Yellow;
    var customImage = ContentLoader.Create<Image>(new ImageCreationData(new Size(64, 64)));
    customImage.Fill(new Color(0, 0, 0, 0.5f));
    customImage.BlendMode = BlendMode.Normal;
    new SolidSprite(customImage);
}

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[Test, CloseAfterFirstFrame]
public void FillCustomImageWitDifferentSizeThanImageCausesException()
{
    var customImage = ContentLoader.Create<Image>(new ImageCreationData(new Size(8, 9)));
    var colors = new Color[8 * 8];            
    Assert.Throws<Image.InvalidNumberOfColors>(() => customImage.Fill(colors));
    var byteArray = new byte[8 * 8];
    Assert.Throws<Image.InvalidNumberOfBytes>(() => customImage.FillRgbaData(byteArray));
    var goodByteArray = new byte[8 * 9 * 4];
    customImage.FillRgbaData(goodByteArray);
}

[Test, CloseAfterFirstFrame]
public void FillCustomImageWitDifferentSizeThanImageCausesException()
{
    var customImage = ContentLoader.Create<Image>(new ImageCreationData(new Size(8, 9)));
    var colors = new Color[8 * 8];            
    Assert.Throws<Image.InvalidNumberOfColors>(() => customImage.Fill(colors));
    var byteArray = new byte[8 * 8];
    Assert.Throws<Image.InvalidNumberOfBytes>(() => customImage.FillRgbaData(byteArray));
    var goodByteArray = new byte[8 * 9 * 4];
    customImage.FillRgbaData(goodByteArray);
}

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[Test, CloseAfterFirstFrame]
public void CreatingTwoImagesWithTheSameDataAlwaysResultsInDifferentImages()
{
    var data1 = new ImageCreationData(new Size(4, 4));
    var data2 = new ImageCreationData(new Size(4, 4));
    Assert.AreNotEqual(data1, data2);
    var image1 = ContentLoader.Create<Image>(data1);
    var image2 = ContentLoader.Create<Image>(data2);
    Assert.AreEqual(image1.PixelSize, image2.PixelSize);
    Assert.AreEqual(image1.BlendMode, image2.BlendMode);
    Assert.AreNotEqual(image1, image2);
}

[Test, CloseAfterFirstFrame]
public void CreatingTwoImagesWithTheSameDataAlwaysResultsInDifferentImages()
{
    var data1 = new ImageCreationData(new Size(4, 4));
    var data2 = new ImageCreationData(new Size(4, 4));
    Assert.AreNotEqual(data1, data2);
    var image1 = ContentLoader.Create<Image>(data1);
    var image2 = ContentLoader.Create<Image>(data2);
    Assert.AreEqual(image1.PixelSize, image2.PixelSize);
    Assert.AreEqual(image1.BlendMode, image2.BlendMode);
    Assert.AreNotEqual(image1, image2);
}

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[Test, ApproveFirstFrameScreenshot]
public void BlendModes()
{
    new DrawableEntity().OnDraw<RenderBlendModes>();
}

[Test, ApproveFirstFrameScreenshot]
public void BlendModes()
{
    new DrawableEntity().OnDraw<RenderBlendModes>();
}