public void TestStore()
{
var a = new Persistent<string>("one");
a.Store();
a.Value = "two";
a.Undo();
Assert.True(a.Value == "one");
a.Redo();
Assert.True(a.Value == "two");
}
public void TestLoaded()
{
var a = new LoadedTestObject();
Assert.True(a.Loaded);
var persistent = new Persistent<LoadedTestObject>(a);
var b = new LoadedTestObject();
persistent.Store();
Assert.True(a.Loaded);
persistent.Value = b;
persistent.Store();
Assert.False(a.Loaded);
Assert.True(b.Loaded);
var c = new LoadedTestObject();
persistent.Value = c;
persistent.Store();
// previous:c, current:c
Assert.False(a.Loaded);
Assert.False(b.Loaded);
persistent.Undo();
// previous:b, current:c, next:c
persistent.Undo();
// previous:a, current:b, next:c
Assert.True(persistent.Value == b);
Assert.False(a.Loaded);
Assert.True(b.Loaded);
Assert.False(c.Loaded);
persistent.Undo();
// current:a, next:b
Assert.True(a.Loaded);
Assert.False(b.Loaded);
Assert.False(c.Loaded);
persistent.Redo();
// previous:a, current:b, next:c
persistent.Redo();
// previous:b, current:c, next:c
Assert.False(a.Loaded);
Assert.False(b.Loaded);
Assert.True(c.Loaded);
persistent.Redo();
// previous:c, current:c
Assert.False(a.Loaded);
Assert.False(b.Loaded);
Assert.True(c.Loaded);
}
