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using System;
using System.Collections.Generic;
using System.Linq;
using NUnit.Framework;
using System.IO;
using System.Threading.Tasks;
using System.Threading;
namespace Xamarin.Forms.Core.UnitTests
{
[TestFixture]
public class ImageSourceTests : BaseTestFixture
{
[SetUp]
public override void Setup ()
{
base.Setup ();
Device.PlatformServices = new MockPlatformServices ();
}
[Test]
public void TestConstructors ()
{
var filesource = new FileImageSource { File = "File.png" };
Assert.AreEqual ("File.png", filesource.File);
Func<CancellationToken, Task<Stream>> stream = token => new Task<Stream> (() => new FileStream ("Foo", System.IO.FileMode.Open), token);
var streamsource = new StreamImageSource { Stream = stream };
Assert.AreEqual (stream, streamsource.Stream);
}
[Test]
public void TestHelpers ()
{
var imagesource = ImageSource.FromFile ("File.png");
Assert.That (imagesource, Is.TypeOf<FileImageSource> ());
Assert.AreEqual ("File.png", ((FileImageSource)imagesource).File);
Func<Stream> stream = () => new System.IO.FileStream ("Foo", System.IO.FileMode.Open);
var streamsource = ImageSource.FromStream (stream);
Assert.That (streamsource, Is.TypeOf<StreamImageSource> ());
var urisource = ImageSource.FromUri (new Uri ("http://xamarin.com/img.png"));
Assert.That (urisource, Is.TypeOf<UriImageSource> ());
Assert.AreEqual ("http://xamarin.com/img.png", ((UriImageSource)(urisource)).Uri.AbsoluteUri);
}
[Test]
public void TestImplicitFileConversion ()
{
var image = new Image { Source = "File.png" };
Assert.IsTrue (image.Source != null);
Assert.That (image.Source, Is.InstanceOf<FileImageSource> ());
Assert.AreEqual ("File.png", ((FileImageSource)(image.Source)).File);
}
[Test]
public void TestImplicitUriConversion ()
{
var image = new Image { Source = new Uri ("http://xamarin.com/img.png") };
Assert.IsTrue (image.Source != null);
Assert.That (image.Source, Is.InstanceOf<UriImageSource> ());
Assert.AreEqual ("http://xamarin.com/img.png", ((UriImageSource)(image.Source)).Uri.AbsoluteUri);
}
[Test]
public void TestImplicitStringUriConversion ()
{
var image = new Image { Source = "http://xamarin.com/img.png" };
Assert.IsTrue (image.Source != null);
Assert.That (image.Source, Is.InstanceOf<UriImageSource> ());
Assert.AreEqual ("http://xamarin.com/img.png", ((UriImageSource)(image.Source)).Uri.AbsoluteUri);
}
[Test]
public void TestSetStringValue ()
{
var image = new Image ();
image.SetValue (Image.SourceProperty, "foo.png");
Assert.IsNotNull (image.Source);
Assert.That (image.Source, Is.InstanceOf<FileImageSource> ());
Assert.AreEqual ("foo.png", ((FileImageSource)(image.Source)).File);
}
[Test]
public void TextBindToStringValue ()
{
var image = new Image ();
image.SetBinding (Image.SourceProperty, ".");
Assert.IsNull (image.Source);
image.BindingContext = "foo.png";
Assert.IsNotNull (image.Source);
Assert.That (image.Source, Is.InstanceOf<FileImageSource> ());
Assert.AreEqual ("foo.png", ((FileImageSource)(image.Source)).File);
}
[Test]
public void TextBindToStringUriValue ()
{
var image = new Image ();
image.SetBinding (Image.SourceProperty, ".");
Assert.IsNull (image.Source);
image.BindingContext = "http://xamarin.com/img.png";
Assert.IsNotNull (image.Source);
Assert.That (image.Source, Is.InstanceOf<UriImageSource> ());
Assert.AreEqual ("http://xamarin.com/img.png", ((UriImageSource)(image.Source)).Uri.AbsoluteUri);
}
[Test]
public void TextBindToUriValue ()
{
var image = new Image ();
image.SetBinding (Image.SourceProperty, ".");
Assert.IsNull (image.Source);
image.BindingContext = new Uri("http://xamarin.com/img.png");
Assert.IsNotNull (image.Source);
Assert.That (image.Source, Is.InstanceOf<UriImageSource> ());
Assert.AreEqual ("http://xamarin.com/img.png", ((UriImageSource)(image.Source)).Uri.AbsoluteUri);
}
class MockImageSource : ImageSource
{
}
[Test]
public void TestBindingContextPropagation ()
{
var context = new object ();
var image = new Image ();
image.BindingContext = context;
var source = new MockImageSource ();
image.Source = source;
Assert.AreSame (context, source.BindingContext);
image = new Image ();
source = new MockImageSource ();
image.Source = source;
image.BindingContext = context;
Assert.AreSame (context, source.BindingContext);
}
[Test]
public void ImplicitCastOnAbsolutePathsShouldCreateAFileImageSource ()
{
var path = "/private/var/mobile/Containers/Data/Application/B1E5AB19-F815-4B4A-AB97-BD4571D53743/Documents/temp/IMG_20140603_150614_preview.jpg";
var image = new Image { Source = path };
Assert.That (image.Source, Is.TypeOf<FileImageSource> ());
}
}
}
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