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using System;
using System.Collections.Generic;
using Moq;
using NUnit.Framework;
using Xamarin.PropertyEditing.ViewModels;
namespace Xamarin.PropertyEditing.Tests
{
[TestFixture]
internal class IntegerPropertyViewModelTests
: NumericViewModelTests<long, long>
{
protected override Tuple<long, long> MaxMin => new Tuple<long, long> (Int64.MaxValue, Int64.MinValue);
protected override long GetRandomTestValue (Random rand)
{
return rand.Next ();
}
protected override long GetConstrainedRandomValue (Random rand, out long max, out long min)
{
int value = rand.Next (2, Int32.MaxValue - 2);
max = rand.Next (value + 1, Int32.MaxValue);
min = rand.Next (0, value - 1);
return value;
}
protected override long GetConstrainedRandomValueAboveBounds (Random rand, out long max, out long min)
{
int value = rand.Next (2, Int32.MaxValue - 2);
min = rand.Next (0, value - 1);
max = rand.Next ((int)min + 1, value - 1);
return value;
}
protected override long GetConstrainedRandomValueBelowBounds (Random rand, out long max, out long min)
{
int value = rand.Next (2, Int32.MaxValue - 2);
max = rand.Next (value + 1, Int32.MaxValue);
min = rand.Next (value + 1, (int)max - 1);
return value;
}
protected override NumericPropertyViewModel<long> GetViewModel (TargetPlatform platform, IPropertyInfo property, IEnumerable<IObjectEditor> editors)
{
return new NumericPropertyViewModel<long> (platform, property, editors);
}
}
[TestFixture]
internal class NullableIntegerPropertyViewModelTests
: NumericViewModelTests<long?, long>
{
// TODO: we can handle value disagreements with null as well
[Test]
[Description ("Even if we say its nullable, the IPropertyInfo type and source are the actual controllers")]
public void ConstrainedToNonNull ()
{
var property = GetPropertyMock ();
// As long as IPropertyInfo Type is non-nullable AND we report supporting the Default source, we should act non-nullable
property.SetupGet (ip => ip.ValueSources).Returns (ValueSources.Local | ValueSources.Default);
property.SetupGet (ip => ip.Type).Returns (typeof(long)); // override base long?
var vm = GetViewModel (property.Object, new MockObjectEditor (property.Object));
Assert.That (vm.Value, Is.EqualTo (0));
vm.Value = null;
Assert.That (vm.Value, Is.EqualTo (0));
}
[Test]
public void NonNullableButUnset ()
{
var property = GetPropertyMock ();
// Even if we say we're non-nullable, if we need to support Unset (!Default), we should act nullable.
property.SetupGet (ip => ip.ValueSources).Returns (ValueSources.Local);
property.SetupGet (ip => ip.Type).Returns (typeof(long)); // override base long?
var vm = GetViewModel (property.Object, new MockObjectEditor (property.Object));
Assert.That (vm.Value, Is.EqualTo (null));
vm.Value = 5;
Assume.That (vm.Value, Is.EqualTo (5));
vm.Value = null;
Assert.That (vm.Value, Is.EqualTo (null));
}
[Test]
public void NullableEvenWithDefault ()
{
var property = GetPropertyMock ();
// If the property says its nullable, its nullable.
property.SetupGet (ip => ip.ValueSources).Returns (ValueSources.Local | ValueSources.Default);
property.SetupGet (ip => ip.Type).Returns (typeof(long?)); // override base long?
var vm = GetViewModel (property.Object, new MockObjectEditor (property.Object));
Assert.That (vm.Value, Is.EqualTo (null));
vm.Value = 5;
Assume.That (vm.Value, Is.EqualTo (5));
vm.Value = null;
Assert.That (vm.Value, Is.EqualTo (null));
}
protected override Tuple<long?, long?> MaxMin => new Tuple<long?, long?> (Int64.MaxValue, Int64.MinValue);
protected override long? GetRandomTestValue (Random rand)
{
return rand.Next ();
}
protected override long? GetConstrainedRandomValue (Random rand, out long? max, out long? min)
{
int value = rand.Next (2, Int32.MaxValue - 2);
max = rand.Next (value + 1, Int32.MaxValue);
min = rand.Next (0, value - 1);
return value;
}
protected override long? GetConstrainedRandomValueAboveBounds (Random rand, out long? max, out long? min)
{
int value = rand.Next (2, Int32.MaxValue - 2);
min = rand.Next (0, value - 1);
max = rand.Next ((int)min + 1, value - 1);
return value;
}
protected override long? GetConstrainedRandomValueBelowBounds (Random rand, out long? max, out long? min)
{
int value = rand.Next (2, Int32.MaxValue - 2);
max = rand.Next (value + 1, Int32.MaxValue);
min = rand.Next (value + 1, (int)max - 1);
return value;
}
protected override NumericPropertyViewModel<long?> GetViewModel (TargetPlatform platform, IPropertyInfo property, IEnumerable<IObjectEditor> editors)
{
return new NumericPropertyViewModel<long?> (platform, property, editors);
}
}
}
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