public void TrackInnerObjects_That_Change_To_Null()
{
var item = new MyTrackedItemWithInnerObject
{
MyInnerItem = new MyTrackedItem
{
MyInt = 10,
MyString = "My string value"
}
};
var tracker = new ChangeTracker();
tracker.TrackChanges(item);
Assert.IsFalse(tracker.CheckChanges());
// change
item.MyInnerItem = null;
Assert.IsTrue(tracker.CheckChanges());
// back
item.MyInnerItem = new MyTrackedItem
{
MyInt = 10,
MyString = "My string value"
};
Assert.IsFalse(tracker.CheckChanges());
}
public void TrackInnerArray_With_Null()
{
var item = new MyTrackedItemWithArray {
MyItems = new string[4]
};
item.MyItems[0] = "A";
item.MyItems[1] = "B";
var tracker = new ChangeTracker();
tracker.TrackChanges(item);
Assert.IsFalse(tracker.CheckChanges());
//// "redimensionnement" du tableau
//string[] newItems = new string[4];
//Array.Copy(item.MyItems, newItems, 2);
//item.MyItems = newItems;
// change
item.MyItems[2] = "C";
Assert.IsTrue(tracker.CheckChanges());
// back
item.MyItems[2] = null;
Assert.IsFalse(tracker.CheckChanges());
}
public void Track_List_With_Count_Change()
{
var items = new List <string> {
"A", "B"
};
var tracker = new ChangeTracker();
tracker.TrackChanges(items);
Assert.IsFalse(tracker.CheckChanges());
items.Add("C");
Assert.IsTrue(tracker.CheckChanges());
}
public void TrackInnerList_With_Count_Change()
{
var item = new MyTrackedItemWithList {
MyItems = new List <string> {
"A", "B"
}
};
var tracker = new ChangeTracker();
tracker.TrackChanges(item);
Assert.IsFalse(tracker.CheckChanges());
item.MyItems.Add("C");
Assert.IsTrue(tracker.CheckChanges());
}
public void Track_Array_That_Value_Changed()
{
var items = new string[] { "A", "B" };
var tracker = new ChangeTracker();
tracker.TrackChanges(items);
Assert.IsFalse(tracker.CheckChanges());
// change
items[1] = "B!";
Assert.IsTrue(tracker.CheckChanges());
// back
items[1] = "B";
Assert.IsFalse(tracker.CheckChanges());
}
public void Ignore_Command()
{
var item = new MyChangeTrackedItem
{
MyString = "My string value"
};
var tracker = new ChangeTracker();
tracker.TrackChanges(item);
Assert.IsFalse(tracker.CheckChanges());
item.MyCommand = new DelegateCommand(() => { });
Assert.IsFalse(tracker.CheckChanges());
item.MyString = "My new value";
Assert.IsTrue(tracker.CheckChanges());
}
public void Track_Dictionary_With_Null()
{
var items = new Dictionary <string, string> {
{ "k1", "v1" }, { "k2", null }
};
var tracker = new ChangeTracker();
tracker.TrackChanges(items);
Assert.IsFalse(tracker.CheckChanges());
// change
items["k2"] = "v2";
Assert.IsTrue(tracker.CheckChanges());
// back
items["k2"] = null;
Assert.IsFalse(tracker.CheckChanges());
}
public void TrackInnerArray_That_Value_Changed()
{
var item = new MyTrackedItemWithArray {
MyItems = new string[] { "A", "B" }
};
var tracker = new ChangeTracker();
tracker.TrackChanges(item);
Assert.IsFalse(tracker.CheckChanges());
// change
item.MyItems[1] = "B!";
Assert.IsTrue(tracker.CheckChanges());
// back
item.MyItems[1] = "B";
Assert.IsFalse(tracker.CheckChanges());
}
public void Track_Class_That_Inherits_From_GenericList()
{
var items = new MyIListOfString {
"A", "B"
};
var tracker = new ChangeTracker();
tracker.TrackChanges(items);
Assert.IsFalse(tracker.CheckChanges());
// change
items[1] = "B!";
Assert.IsTrue(tracker.CheckChanges());
// back
items[1] = "B";
Assert.IsFalse(tracker.CheckChanges());
}
public void TrackInnerList_Null()
{
var item = new MyTrackedItemWithList();
var tracker = new ChangeTracker();
tracker.TrackChanges(item);
Assert.IsFalse(tracker.CheckChanges());
// change
item.MyItems = new List <string> {
"A", "B"
};
Assert.IsTrue(tracker.CheckChanges());
// back
item.MyItems = null;
Assert.IsFalse(tracker.CheckChanges());
}
public void Track_Array_With_Null()
{
var items = new string[4];
items[0] = "A";
items[1] = "B";
var tracker = new ChangeTracker();
tracker.TrackChanges(items);
Assert.IsFalse(tracker.CheckChanges());
// change
items[2] = "C";
Assert.IsTrue(tracker.CheckChanges());
// back
items[2] = null;
Assert.IsFalse(tracker.CheckChanges());
}
public void TrackInnerDictionary_With_Count()
{
var item = new MyTrackedItemWithDictionary {
MyItems = new Dictionary <string, string> {
{ "k1", "v1" }, { "k2", "v2" }
}
};
var tracker = new ChangeTracker();
tracker.TrackChanges(item);
Assert.IsFalse(tracker.CheckChanges());
// change
item.MyItems.Remove("k2");
Assert.IsTrue(tracker.CheckChanges());
// back
item.MyItems["k2"] = "v2";
Assert.IsFalse(tracker.CheckChanges());
}
public void TrackObjectPropertyValues()
{
var item = new MyTrackedItem
{
MyInt = 10,
MyString = "My string value"
};
var tracker = new ChangeTracker();
tracker.TrackChanges(item);
Assert.IsFalse(tracker.CheckChanges());
// change
item.MyString = "New Value";
Assert.IsTrue(tracker.CheckChanges());
// back
item.MyString = "My string value";
Assert.IsFalse(tracker.CheckChanges());
}
public void Ignore_Property()
{
var item = new MyTrackedItem
{
MyInt = 10,
MyString = "My string value"
};
var tracker = new ChangeTracker(new List <string> {
"MyInt"
});
tracker.TrackChanges(item);
Assert.IsFalse(tracker.CheckChanges());
// change
item.MyInt = 100;
Assert.IsFalse(tracker.CheckChanges());
// back
item.MyString = "My new value";
Assert.IsTrue(tracker.CheckChanges());
}