public void IPropertiesExtensionMethodsTest()
{
var graph = new PropertyGraph(123UL, g => g.SetProperty (new KeyValuePair<String, Object>("hello", "world!")).
SetProperties(new List<KeyValuePair<String, Object>>() { new KeyValuePair<String, Object>("graphs", "are cool!"),
new KeyValuePair<String, Object>("Keep", "it simple!")}).
SetProperties(new Dictionary<String, Object>() { { "a", "b" }, { "c", "d" } }).
SetProperty ("e", "f"));
Assert.AreEqual(123UL, graph.GetProperty("Id"));
Assert.AreEqual("world!", graph.GetProperty("hello"));
Assert.AreEqual("are cool!", graph.GetProperty("graphs"));
Assert.AreEqual("it simple!", graph.GetProperty("Keep"));
Assert.AreEqual("b", graph.GetProperty("a"));
Assert.AreEqual("d", graph.GetProperty("c"));
Assert.AreEqual(123UL, graph.GetProperty("Id", typeof(UInt64)));
Assert.AreEqual("world!", graph.GetProperty("hello", typeof(String)));
Assert.AreEqual("are cool!", graph.GetProperty("graphs", typeof(String)));
Assert.AreEqual("it simple!", graph.GetProperty("Keep", typeof(String)));
Assert.AreNotEqual("world!", graph.GetProperty("hello", typeof(UInt64)));
// --[Action<TValue>]--------------------------------------------------------------
Nullable<Boolean> check;
check = null;
graph.UseProperty("false", OnSuccess_PropertyValue => check = true);
Assert.IsNull(check);
check = null;
graph.UseProperty("Id", OnSuccess_PropertyValue => check = true);
Assert.IsTrue(check.Value);
check = null;
graph.UseProperty("hello", OnSuccess_PropertyValue => check = true);
Assert.IsTrue(check.Value);
check = null;
graph.UseProperty("graphs", OnSuccess_PropertyValue => check = true);
Assert.IsTrue(check.Value);
// --[Action<TKey, TValue>]--------------------------------------------------------
check = null;
graph.UseProperty("false", (OnSuccess_PropertyKey, PropertyValue) => check = true);
Assert.IsNull(check);
check = null;
graph.UseProperty("Id", (OnSuccess_PropertyKey, PropertyValue) => check = true);
Assert.IsTrue(check.Value);
check = null;
graph.UseProperty("hello", (OnSuccess_PropertyKey, PropertyValue) => check = true);
Assert.IsTrue(check.Value);
check = null;
graph.UseProperty("graphs", (OnSuccess_PropertyKey, PropertyValue) => check = true);
Assert.IsTrue(check.Value);
// --[Action<TValue>]--[Error]-----------------------------------------------------
check = null;
graph.GetProperty("false", OnSuccess_PropertyValue => check = true, OnError => check = false);
Assert.IsFalse(check.Value);
check = null;
graph.GetProperty("Id", OnSuccess_PropertyValue => check = true, OnError => check = false);
Assert.IsTrue(check.Value);
check = null;
graph.GetProperty("hello", OnSuccess_PropertyValue => check = true, OnError => check = false);
Assert.IsTrue(check.Value);
check = null;
graph.GetProperty("graphs", OnSuccess_PropertyValue => check = true, OnError => check = false);
Assert.IsTrue(check.Value);
// --[Action<TKey, TValue>]--[Error]-----------------------------------------------
check = null;
graph.GetProperty("false", (OnSuccess_PropertyKey, PropertyValue) => check = true, OnError => check = false);
Assert.IsFalse(check.Value);
check = null;
graph.GetProperty("Id", (OnSuccess_PropertyKey, PropertyValue) => check = true, OnError => check = false);
Assert.IsTrue(check.Value);
check = null;
graph.GetProperty("hello", (OnSuccess_PropertyKey, PropertyValue) => check = true, OnError => check = false);
Assert.IsTrue(check.Value);
check = null;
graph.GetProperty("graphs", (OnSuccess_PropertyKey, PropertyValue) => check = true, OnError => check = false);
Assert.IsTrue(check.Value);
// --[Func<TValue, TResult>]-------------------------------------------------------
Assert.AreEqual("world!?", graph.PropertyFunc("hello", PropertyValue => { return (PropertyValue as String) + "?"; }));
Assert.AreEqual(124UL, graph.PropertyFunc("Id", PropertyValue => { return ( (UInt64) PropertyValue ) + 1; }));
Assert.AreEqual(0, graph.PropertyFunc("XYZ", PropertyValue => { return ( (UInt64) PropertyValue ) + 1; }));
Assert.AreEqual(null, graph.PropertyFunc("XYZ", PropertyValue => { return ( (String) PropertyValue ); }));
Assert.AreEqual("world!?", graph.PropertyFunc("hello", typeof(String), PropertyValue => { return (PropertyValue as String) + "?"; }));
Assert.AreEqual(124UL, graph.PropertyFunc("Id", typeof(UInt64), PropertyValue => { return ( (UInt64) PropertyValue ) + 1; }));
Assert.AreEqual(null, graph.PropertyFunc("XYZ", typeof(UInt64), PropertyValue => { return ( (UInt64) PropertyValue ) + 1; }));
Assert.AreEqual(null, graph.PropertyFunc("XYZ", typeof(String), PropertyValue => { return ( (String) PropertyValue ); }));
// --[Func<TKey, TValue, TResult>]-------------------------------------------------
Assert.AreEqual("hello world!", graph.PropertyFunc("hello", (OnSuccess_PropertyKey, PropertyValue) => { return OnSuccess_PropertyKey + " " + (PropertyValue as String); }));
Assert.AreEqual("Id124", graph.PropertyFunc("Id", (OnSuccess_PropertyKey, PropertyValue) => { return OnSuccess_PropertyKey + ((UInt64) PropertyValue + 1); }));
Assert.AreEqual("hello world!", graph.PropertyFunc("hello", typeof(String), (OnSuccess_PropertyKey, PropertyValue) => { return OnSuccess_PropertyKey + " " + (PropertyValue as String); }));
Assert.AreEqual("Id124", graph.PropertyFunc("Id", typeof(UInt64), (OnSuccess_PropertyKey, PropertyValue) => { return OnSuccess_PropertyKey + ((UInt64) PropertyValue + 1); }));
// Filtered Keys/Values
var FilteredKeys1 = graph.FilteredKeys ((k, v) => true).ToList();
Assert.NotNull(FilteredKeys1);
Assert.AreEqual(8, FilteredKeys1.Count);
var FilteredKeys2 = graph.FilteredKeys ((k, v) => { if ((v as String).IsNotNullAndContains("!")) return true; else return false;}).ToList();
Assert.NotNull(FilteredKeys2);
Assert.AreEqual(3, FilteredKeys2.Count);
var FilteredValues1 = graph.FilteredValues((k, v) => true).ToList();
Assert.NotNull(FilteredValues1);
Assert.AreEqual(8, FilteredValues1.Count);
var FilteredValues2 = graph.FilteredValues((k, v) => { if ((v as String).IsNotNullAndContains("!")) return true; else return false; }).ToList();
Assert.NotNull(FilteredValues2);
Assert.AreEqual(3, FilteredValues2.Count);
}