public void ObserveTwoProperties()
{
var obj = new LotsOfProperties();
Tuple<int, string> current = null;
obj.ObserveProperties(x => x.IntProperty, x => x.StringProperty, (x, y) => Tuple.Create(x, y)).Subscribe(x => current = x);
Assert.AreEqual(0, current.Item1);
Assert.AreEqual(null, current.Item2);
obj.IntProperty = 1;
Assert.AreEqual(1, current.Item1);
Assert.AreEqual(null, current.Item2);
obj.StringProperty = "foo";
Assert.AreEqual(1, current.Item1);
Assert.AreEqual("foo", current.Item2);
}
public void ObserveThreeProperties()
{
var obj = new LotsOfProperties();
Tuple<int, string, string> current = null;
obj.ObserveProperties(x => x.IntProperty, x => x.StringProperty, x => x.TestObjectProperty.StringProperty, (x, y, z) => Tuple.Create(x, y, z)).Subscribe(x => current = x);
Assert.AreEqual(0, current.Item1);
Assert.AreEqual(null, current.Item2);
Assert.AreEqual(null, current.Item3);
obj.IntProperty = 1;
Assert.AreEqual(1, current.Item1);
Assert.AreEqual(null, current.Item2);
Assert.AreEqual(null, current.Item3);
obj.StringProperty = "foo";
Assert.AreEqual(1, current.Item1);
Assert.AreEqual("foo", current.Item2);
Assert.AreEqual(null, current.Item3);
obj.TestObjectProperty = new TestObject();
obj.TestObjectProperty.StringProperty = "bar";
Assert.AreEqual(1, current.Item1);
Assert.AreEqual("foo", current.Item2);
Assert.AreEqual("bar", current.Item3);
}