public void RestoreTest_FieldTypeChanged()
{
//////////////////////////////////////////////////////////////
// Setup for this specific test.
//////////////////////////////////////////////////////////////
var initialFieldType = registry.FindByName <UTinyType>("Int32");
var expectedInitialType = typeof(int);
var changedFieldType = registry.FindByName <UTinyType>("EntityReference");
var expectedChangedType = typeof(UTinyEntity.Reference);
IMemento state = null;
// Register for changed events
caretaker.OnObjectChanged += (originator, memento) =>
{
state = memento;
};
//////////////////////////////////////////////////////////////
// 1. Create a component with a single field of type int.
//////////////////////////////////////////////////////////////
var componentType = registry.CreateType(UTinyId.New(), "Component", UTinyTypeCode.Component);
var field = componentType.CreateField(UTinyId.New(), "Field", (UTinyType.Reference)initialFieldType);
componentType.Refresh();
// Check default value
{
var defaultValue = componentType.DefaultValue as UTinyObject;
Assert.IsNotNull(defaultValue);
Assert.IsTrue(defaultValue.IsDefaultValue);
Assert.IsTrue(field.FieldType.Equals((UTinyType.Reference)initialFieldType));
Assert.AreEqual(expectedInitialType, defaultValue["Field"].GetType());
Assert.AreEqual(defaultValue["Field"], 0);
}
Debug.Log($"Initial State: {componentType.Id}: {(componentType.DefaultValue as UTinyObject)["Field"]}");
// Update to get the initial state; flush changes
caretaker.Update();
IMemento initialState = state;
Assert.NotNull(initialState);
//////////////////////////////////////////////////////////////
// 2- Change the field type to be of EntityReference.
//////////////////////////////////////////////////////////////
field.FieldType = (UTinyType.Reference)changedFieldType;
componentType.Refresh();
// Check default value
{
var defaultValue = componentType.DefaultValue as UTinyObject;
Assert.IsNotNull(defaultValue);
Assert.IsTrue(defaultValue.IsDefaultValue);
Assert.IsTrue(field.FieldType.Equals((UTinyType.Reference)changedFieldType));
Assert.AreEqual(expectedChangedType, defaultValue["Field"].GetType());
Assert.AreEqual(defaultValue["Field"], UTinyEntity.Reference.None);
}
Debug.Log($"Changed State: {componentType.Id}: {(componentType.DefaultValue as UTinyObject)["Field"]}");
// Update to get the changed state; flush changes
caretaker.Update();
IMemento changedState = state;
Assert.NotNull(changedState);
Assert.AreNotEqual(initialState, changedState);
Assert.IsTrue(initialState.Version < changedState.Version);
//////////////////////////////////////////////////////////////
// 3 - Restore it back to its initial field type (Undo).
//////////////////////////////////////////////////////////////
Debug.Log("Undo");
Debug.Log($"Before: {componentType.Id}: {(componentType.DefaultValue as UTinyObject)["Field"]}");
componentType.Restore(initialState);
// Note: Restoring is not in-place, so we need to re-set the references
componentType = registry.FindById <UTinyType>(componentType.Id);
componentType.Refresh();
field = componentType.Fields[0];
Debug.Log($"After: {componentType.Id}: {(componentType.DefaultValue as UTinyObject)["Field"]}");
// Check default value
{
var defaultValue = componentType.DefaultValue as UTinyObject;
Assert.IsNotNull(defaultValue);
Assert.IsTrue(defaultValue.IsDefaultValue);
Assert.IsTrue(field.FieldType.Equals((UTinyType.Reference)initialFieldType));
Assert.AreEqual(expectedInitialType, defaultValue["Field"].GetType());
Assert.AreEqual(defaultValue["Field"], 0);
}
// Update to get the changed state; flush changes
caretaker.Update();
//////////////////////////////////////////////////////////////
// 4- Restore the field type change (Redo).
//////////////////////////////////////////////////////////////
Debug.Log("Redo");
Debug.Log($"Before: {componentType.Id}: {(componentType.DefaultValue as UTinyObject)["Field"]}");
componentType.Restore(changedState);
// Note: Restoring is not in-place, so we need to re-set the references
componentType = registry.FindById <UTinyType>(componentType.Id);
componentType.Refresh();
field = componentType.Fields[0];
Debug.Log($"After: {componentType.Id}: {(componentType.DefaultValue as UTinyObject)["Field"]}");
// Check default value
{
var defaultValue = componentType.DefaultValue as UTinyObject;
Assert.IsNotNull(defaultValue);
Assert.IsTrue(defaultValue.IsDefaultValue);
Assert.IsTrue(field.FieldType.Equals((UTinyType.Reference)changedFieldType));
Assert.AreEqual(expectedChangedType, defaultValue["Field"].GetType());
Assert.AreEqual(defaultValue["Field"], UTinyEntity.Reference.None);
}
}
