public void DependencyObjectObservableForPropertySmokeTest()
{
var fixture = new DepObjFixture();
var binder = new DependencyObjectObservableForProperty();
Assert.NotEqual(0, binder.GetAffinityForObject(typeof(DepObjFixture), "TestString"));
Assert.Equal(0, binder.GetAffinityForObject(typeof(DepObjFixture), "DoesntExist"));
var results = new List <IObservedChange <object, object?> >();
Expression <Func <DepObjFixture, object> > expression = x => x.TestString;
var propertyName = expression.Body.GetMemberInfo()?.Name;
if (propertyName is null)
{
throw new InvalidOperationException("There is no valid property name");
}
var disp1 = binder.GetNotificationForProperty(fixture, expression.Body, propertyName).WhereNotNull().Subscribe(results.Add);
var disp2 = binder.GetNotificationForProperty(fixture, expression.Body, propertyName).WhereNotNull().Subscribe(results.Add);
fixture.TestString = "Foo";
fixture.TestString = "Bar";
Assert.Equal(4, results.Count);
disp1.Dispose();
disp2.Dispose();
}
public void WhenAnyWithDependencyObjectTest()
{
var inputs = new[] { "Foo", "Bar", "Baz" };
var fixture = new DepObjFixture();
fixture.WhenAnyValue(x => x.TestString).ToObservableChangeSet().Bind(out var outputs).Subscribe();
inputs.ForEach(x => fixture.TestString = x);
Assert.Null(outputs.First());
Assert.Equal(4, outputs.Count);
Assert.True(inputs.Zip(outputs.Skip(1), (expected, actual) => expected == actual).All(x => x));
}