/// <summary>
/// Retrieve property path info.
/// Throw error if unavailable.
/// This only examines public instance properties.
/// </summary>
/// <param name="t"></param>
/// <param name="propertyPathString"></param>
/// <param name="cacheProvider"></param>
/// <returns></returns>
private static IPropertyPath GetPropertyPath(Type t, String propertyPathString, ICacheService cacheProvider)
{
String cacheKey = null;
IPropertyPath propertyPath = null;
if (cacheProvider != null)
{
cacheKey = t.FullName + "#" + propertyPathString;
propertyPath = cacheProvider[cacheKey] as IPropertyPath;
}
if (propertyPath == null)
{
if (propertyPathString.IndexOf('.') > -1)
{
propertyPath = new ComplexPropertyPath(t, propertyPathString);
}
else
{
propertyPath = new SimplePropertyPath(t, propertyPathString);
}
if (cacheProvider != null)
{
cacheProvider[cacheKey] = propertyPath;
}
}
return(propertyPath);
}
public void TestChildObjectChange()
{
bool sawChange = false;
FakeVM obj = new FakeVM {
Child = new FakeVM {
Value = 100
}
};
SimplePropertyPath path = new SimplePropertyPath {
Root = obj, Path = "Child.Value"
};
path.PropertyChanged += (sender, args) => { if (args.PropertyName == "Value")
{
sawChange = true;
}
};
Assert.AreEqual(100, path.Value);
Assert.AreEqual(false, sawChange);
obj.Child = null;
Assert.IsNull(path.Value);
Assert.AreEqual(true, sawChange);
obj.Child = new FakeVM {
Value = 113
};
Assert.AreEqual(113, path.Value);
}
public void TestInvalidRead()
{
FakeVM obj = new FakeVM {
Value = 13
};
SimplePropertyPath path = new SimplePropertyPath {
Root = obj, Path = "value"
};
Assert.IsNull(path.Value);
}
public void TestSimpleRead()
{
FakeVM obj = new FakeVM {
Value = 13
};
SimplePropertyPath path = new SimplePropertyPath {
Root = obj, Path = "Value"
};
Assert.AreEqual(13, path.Value);
}
public void TestChildRead()
{
FakeVM obj = new FakeVM {
Child = new FakeVM {
Value = 10
}
};
SimplePropertyPath path = new SimplePropertyPath {
Root = obj, Path = "Child.Value"
};
Assert.AreEqual(10, path.Value);
}
public void TestSimpleWrite()
{
FakeVM obj = new FakeVM {
Value = 13
};
SimplePropertyPath path = new SimplePropertyPath {
Root = obj, Path = "Value"
};
path.Value = 17;
Assert.AreEqual(17, obj.Value);
}
public void TestInvalidWrite()
{
FakeVM obj = new FakeVM {
Value = 13
};
SimplePropertyPath path = new SimplePropertyPath {
Root = obj, Path = "value"
};
path.Value = 17;
Assert.AreEqual(13, obj.Value);
Assert.IsNull(path.Value);
}
public void TestChildWrite()
{
FakeVM obj = new FakeVM {
Child = new FakeVM {
Value = 10
}
};
SimplePropertyPath path = new SimplePropertyPath {
Root = obj, Path = "Child.Value"
};
path.Value = 17;
Assert.AreEqual(17, obj.Child.Value);
}
public void TestLongChain()
{
FakeVM obj = new FakeVM {
Value = 1
};
SimplePropertyPath path = new SimplePropertyPath {
Root = obj, Path = "Child.Child.Child.Value"
};
Assert.IsNull(path.Value);
obj.Child = new FakeVM {
Value = 2
};
Assert.IsNull(path.Value);
obj.Child.Child = new FakeVM {
Value = 3
};
Assert.IsNull(path.Value);
obj.Child.Child.Child = new FakeVM {
Value = 4
};
Assert.AreEqual(4, path.Value);
obj.Child = new FakeVM {
Value = 52, Child = new FakeVM {
Value = 53, Child = new FakeVM {
Value = 54
}
}
};
Assert.AreEqual(54, path.Value);
}
public void TestSimpleChange()
{
bool sawChange = false;
FakeVM obj = new FakeVM {
Value = 11
};
SimplePropertyPath path = new SimplePropertyPath {
Root = obj, Path = "Value"
};
path.PropertyChanged += (sender, args) => { if (args.PropertyName == "Value")
{
sawChange = true;
}
};
Assert.AreEqual(11, path.Value);
Assert.AreEqual(false, sawChange);
obj.Value = 12;
Assert.AreEqual(12, path.Value);
Assert.AreEqual(true, sawChange);
}
/// <summary>
/// Retrieve property path info.
/// Throw error if unavailable.
/// This only examines public instance properties.
/// </summary>
/// <param name="t"></param>
/// <param name="propertyPathString"></param>
/// <param name="cacheProvider"></param>
/// <returns></returns>
private static IPropertyPath GetPropertyPath(Type t, String propertyPathString, ICacheService cacheProvider)
{
String cacheKey = null;
IPropertyPath propertyPath = null;
if (cacheProvider != null)
{
cacheKey = t.FullName + "#" + propertyPathString;
propertyPath = cacheProvider[cacheKey] as IPropertyPath;
}
if (propertyPath == null)
{
if (propertyPathString.IndexOf('.') > -1)
{
propertyPath = new ComplexPropertyPath(t, propertyPathString);
}
else
{
propertyPath = new SimplePropertyPath(t, propertyPathString);
}
if (cacheProvider != null)
{
cacheProvider[cacheKey] = propertyPath;
}
}
return propertyPath;
}
