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using System;
using System.Collections;
using System.Collections.Specialized;
using System.Linq;
using System.Threading.Tasks;
using Moq;
using NUnit.Framework;
using Xamarin.PropertyEditing.Reflection;
using Xamarin.PropertyEditing.Tests.MockControls;
using Xamarin.PropertyEditing.ViewModels;
namespace Xamarin.PropertyEditing.Tests
{
[TestFixture]
internal class CollectionPropertyViewModelTests
{
[Test]
public async Task AddType ()
{
TargetPlatform platform = new TargetPlatform (new MockEditorProvider());
var obj = new {
Collection = new ArrayList ()
};
var editor = new ReflectionObjectEditor (obj);
var vm = new CollectionPropertyViewModel (platform, editor.Properties.First(), new[] { editor });
var buttonType = GetTypeInfo (typeof(MockWpfButton));
vm.TypeRequested += (o, e) => {
e.SelectedType = buttonType;
};
await vm.AssignableTypes.Task;
vm.SelectedType = vm.SuggestedTypes.First ();
Assert.That (vm.SuggestedTypes, Contains.Item (buttonType));
}
[Test]
public async Task AddTarget ()
{
TargetPlatform platform = new TargetPlatform (new MockEditorProvider());
var obj = new {
Collection = new ArrayList ()
};
var editor = new ReflectionObjectEditor (obj);
var vm = new CollectionPropertyViewModel (platform, editor.Properties.First(), new[] { editor });
await vm.AssignableTypes.Task;
vm.SelectedType = GetTypeInfo (typeof(MockWpfButton));
vm.AddTargetCommand.Execute (null);
Assert.That (vm.Targets, Is.Not.Empty, "Adding a target failed");
Assume.That (vm.Targets.Single ().Item, Is.InstanceOf (typeof(MockWpfButton)));
}
[Test]
public async Task RemoveTarget ()
{
TargetPlatform platform = new TargetPlatform (new MockEditorProvider());
var obj = new {
Collection = new ArrayList ()
};
var editor = new ReflectionObjectEditor (obj);
var vm = new CollectionPropertyViewModel (platform, editor.Properties.First(), new[] { editor });
await vm.AssignableTypes.Task;
vm.SelectedType = GetTypeInfo (typeof(MockWpfButton));
vm.AddTargetCommand.Execute (null);
Assume.That (vm.Targets, Is.Not.Empty);
vm.SelectedTarget = vm.Targets.First ();
Assert.That (vm.RemoveTargetCommand.CanExecute (null), Is.True);
vm.RemoveTargetCommand.Execute (null);
Assert.That (vm.Targets, Is.Empty);
}
[Test]
public async Task MoveUpCommand ()
{
TargetPlatform platform = new TargetPlatform (new MockEditorProvider());
var obj = new {
Collection = new ArrayList ()
};
var editor = new ReflectionObjectEditor (obj);
var vm = new CollectionPropertyViewModel (platform, editor.Properties.First(), new[] { editor });
await vm.AssignableTypes.Task;
vm.SelectedType = GetTypeInfo (typeof(MockWpfButton));
vm.AddTargetCommand.Execute (null);
vm.AddTargetCommand.Execute (null);
Assume.That (vm.Targets.Count, Is.EqualTo (2));
Assume.That (vm.Targets, Is.Not.Empty, "Adding a target failed");
var target = vm.Targets.Skip (1).First ();
vm.SelectedTarget = target;
Assume.That (vm.Targets[0], Is.Not.SameAs (target));
Assert.That (vm.MoveUpCommand.CanExecute (null), Is.True);
vm.MoveUpCommand.Execute (null);
Assert.That (vm.MoveUpCommand.CanExecute (null), Is.False);
Assume.That (vm.SelectedTarget, Is.SameAs (target));
Assert.That (vm.Targets[0], Is.SameAs (target));
}
[Test]
public async Task MoveDownCommand ()
{
TargetPlatform platform = new TargetPlatform (new MockEditorProvider());
var obj = new {
Collection = new ArrayList ()
};
var editor = new ReflectionObjectEditor (obj);
var vm = new CollectionPropertyViewModel (platform, editor.Properties.First(), new[] { editor });
await vm.AssignableTypes.Task;
vm.SelectedType = GetTypeInfo (typeof(MockWpfButton));
vm.AddTargetCommand.Execute (null);
vm.AddTargetCommand.Execute (null);
Assume.That (vm.Targets.Count, Is.EqualTo (2));
Assume.That (vm.Targets, Is.Not.Empty, "Adding a target failed");
var target = vm.Targets.First ();
vm.SelectedTarget = target;
Assume.That (vm.Targets[1], Is.Not.SameAs (target));
Assert.That (vm.MoveDownCommand.CanExecute (null), Is.True);
vm.MoveDownCommand.Execute (null);
Assert.That (vm.MoveDownCommand.CanExecute (null), Is.False);
Assume.That (vm.SelectedTarget, Is.SameAs (target));
Assert.That (vm.Targets[1], Is.SameAs (target));
}
[Test]
public async Task ReorderEnablesOnItemAdd ()
{
TargetPlatform platform = new TargetPlatform (new MockEditorProvider());
var obj = new {
Collection = new ArrayList ()
};
var editor = new ReflectionObjectEditor (obj);
var vm = new CollectionPropertyViewModel (platform, editor.Properties.First(), new[] { editor });
await vm.AssignableTypes.Task;
vm.SelectedType = GetTypeInfo (typeof(MockWpfButton));
vm.AddTargetCommand.Execute (null);
Assume.That (vm.Targets.Count, Is.EqualTo (1));
Assume.That (vm.Targets, Is.Not.Empty, "Adding a target failed");
vm.SelectedTarget = vm.Targets.First ();
Assume.That (vm.MoveUpCommand.CanExecute (null), Is.False);
Assume.That (vm.MoveDownCommand.CanExecute (null), Is.False);
bool upChanged = false;
vm.MoveUpCommand.CanExecuteChanged += (sender, args) => upChanged = true;
vm.AddTargetCommand.Execute (null);
Assume.That (vm.SelectedTarget, Is.SameAs (vm.Targets[vm.Targets.Count-1]), "Selected target not expected");
Assert.That (upChanged, Is.True);
Assert.That (vm.MoveUpCommand.CanExecute (null), Is.True);
Assert.That (vm.MoveDownCommand.CanExecute (null), Is.False);
}
[Test]
public async Task SelectOnAdd ()
{
TargetPlatform platform = new TargetPlatform (new MockEditorProvider());
var obj = new {
Collection = new ArrayList ()
};
var editor = new ReflectionObjectEditor (obj);
var vm = new CollectionPropertyViewModel (platform, editor.Properties.First(), new[] { editor });
await vm.AssignableTypes.Task;
vm.SelectedType = GetTypeInfo (typeof(MockWpfButton));
vm.AddTargetCommand.Execute (null);
Assume.That (vm.Targets, Is.Not.Empty, "Adding a target failed");
Assume.That (vm.Targets.Single ().Item, Is.InstanceOf (typeof(MockWpfButton)));
Assert.That (vm.SelectedTarget, Is.SameAs (vm.Targets[0]), "Didn't auto-select first added");
}
[Test]
[Description ("The added item should be inserted after a selected item")]
public async Task AddAfterSelected ()
{
TargetPlatform platform = new TargetPlatform (new MockEditorProvider());
var obj = new {
Collection = new ArrayList ()
};
var editor = new ReflectionObjectEditor (obj);
var vm = new CollectionPropertyViewModel (platform, editor.Properties.First(), new[] { editor });
await vm.AssignableTypes.Task;
vm.SelectedType = GetTypeInfo (typeof(MockWpfButton));
vm.AddTargetCommand.Execute (null);
vm.AddTargetCommand.Execute (null);
vm.AddTargetCommand.Execute (null);
Assume.That (vm.Targets.Count, Is.EqualTo (3), "Dummy items were not added");
bool changed = false;
var incc = (INotifyCollectionChanged) vm.Targets;
incc.CollectionChanged += (sender, args) => {
changed = true;
Assert.That (args.Action, Is.EqualTo (NotifyCollectionChangedAction.Add));
Assert.That (args.NewStartingIndex, Is.EqualTo (2));
};
vm.SelectedTarget = vm.Targets[1];
vm.AddTargetCommand.Execute (null);
Assert.That (changed, Is.True);
Assert.That (vm.Targets[1].Row, Is.EqualTo (1));
Assert.That (vm.Targets[2].Row, Is.EqualTo (2));
Assert.That (vm.Targets[3].Row, Is.EqualTo (3));
}
[Test]
public async Task SelectPreviousOnRemove ()
{
TargetPlatform platform = new TargetPlatform (new MockEditorProvider());
var obj = new {
Collection = new ArrayList ()
};
var editor = new ReflectionObjectEditor (obj);
var vm = new CollectionPropertyViewModel (platform, editor.Properties.First(), new[] { editor });
await vm.AssignableTypes.Task;
vm.SelectedType = GetTypeInfo (typeof(MockWpfButton));
vm.AddTargetCommand.Execute (null);
vm.AddTargetCommand.Execute (null);
vm.AddTargetCommand.Execute (null);
Assume.That (vm.Targets, Is.Not.Empty);
var newTarget = vm.Targets[1];
var target = vm.Targets[2];
vm.SelectedTarget = target;
Assume.That (vm.RemoveTargetCommand.CanExecute (null), Is.True);
vm.RemoveTargetCommand.Execute (null);
Assume.That (vm.Targets, Does.Not.Contain (target));
Assert.That (vm.SelectedTarget, Is.SameAs (newTarget));
vm.RemoveTargetCommand.Execute (null);
vm.RemoveTargetCommand.Execute (null);
Assert.That (vm.SelectedTarget, Is.Null);
}
[Test]
[Description ("If there's a suggested type (not other type..), it should be auto-selected to start")]
public async Task SuggestedSelected ()
{
TargetPlatform platform = new TargetPlatform (new MockEditorProvider());
var collectionProperty = new Mock<IPropertyInfo> ();
collectionProperty.SetupGet (pi => pi.Type).Returns (typeof(IList));
ITypeInfo objType = GetTypeInfo (typeof(object));
var editor = new Mock<IObjectEditor> ();
editor.Setup (e => e.GetAssignableTypesAsync (collectionProperty.Object, true)).ReturnsAsync (new AssignableTypesResult (new[] { objType }, new[] { objType }));
editor.Setup (e => e.Properties).Returns (new[] { collectionProperty.Object });
var vm = new CollectionPropertyViewModel (platform, collectionProperty.Object, new[] { editor.Object });
await vm.AssignableTypes.Task;
Assert.That (vm.SelectedType, Is.EqualTo (objType));
}
private ITypeInfo GetTypeInfo (Type type)
{
var asm = new AssemblyInfo (type.Assembly.FullName, true);
return new TypeInfo (asm, type.Namespace, type.Name);
}
}
}
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