public void GetChangeSet_CorrectWhenItemUpdate()
{
var expectedOldValue = "My old value";
var expectedItem = new TestItem
{
StringValue = expectedOldValue
};
var subject = new ChangeContainerItem <TestItem>(expectedItem, ChangeTarget.Collection);
var expectedNewValue = "New value";
expectedItem.StringValue = expectedNewValue;
var path = ChangePath.Create("Path");
var result = subject.GetChangeSet(path);
var expectedPath = path.AppendProperty(nameof(TestItem.StringValue));
var kvp = Assert.Single(result);
Assert.Equal(ChangeTarget.Object, kvp.Key.Target);
Assert.Contains(expectedPath, result as IDictionary <ChangePath, List <ChangeValue> >);
var values = result[expectedPath];
var value = Assert.Single(values);
Assert.Equal(ChangeAction.Update, value.Action);
Assert.Same(expectedOldValue, value.OldValue);
Assert.Same(expectedNewValue, value.NewValue);
}
public void GetChangeSet_CorrectWhenDirectUpdate()
{
var originalItem = ChangeTrackingObject.CreateTrackable <TestItem>();
originalItem.StringValue = "New value";
var subject = new ChangeContainerItem <TestItem>(originalItem, ChangeTarget.Collection);
var expectedItem = ChangeTrackingObject.CreateTrackable <TestItem>();
subject.Item = expectedItem;
var expectedPath = ChangePath.Create("Path");
var result = subject.GetChangeSet(expectedPath);
var kvp = Assert.Single(result);
Assert.Equal(ChangeTarget.Object, kvp.Key.Target);
Assert.Contains(expectedPath, result as IDictionary <ChangePath, List <ChangeValue> >);
var values = result[expectedPath];
var value = Assert.Single(values);
Assert.Equal(ChangeAction.Update, value.Action);
Assert.Same(originalItem, value.OldValue);
Assert.Same(expectedItem, value.NewValue);
}
public void GetChangeSet_NullWhenNoChanges()
{
var expectedItem = ChangeTrackingObject.CreateTrackable <TestItem>();
var subject = new ChangeContainerItem <TestItem>(expectedItem, ChangeTarget.Collection);
var result = subject.GetChangeSet(ChangePath.Create("path"));
Assert.Null(result);
}
public void GetChangeSet_ThrowsIfUpdateNonTrackChanges()
{
var expectedOldValue = "My old value";
var expectedItem = new TestItem
{
StringValue = expectedOldValue
};
var subject = new ChangeContainerItem <string>("Value", ChangeTarget.Collection, ChangeAction.Update);
Assert.Throws <InvalidOperationException>(() => subject.GetChangeSet(ChangePath.Empty));
}
public void GetChangeSet_HasChangeFalseWhenCommit()
{
var expectedItem = ChangeTrackingObject.CreateTrackable <TestItem>();
var subject = new ChangeContainerItem <TestItem>(expectedItem, ChangeTarget.Collection);
expectedItem.StringValue = "New value";
subject.GetChangeSet(ChangePath.Create("path"), true);
Assert.False(subject.HasChanges);
Assert.False(expectedItem.HasChanges);
}
public void GetChangeSet_CorrectWhenRemove()
{
var expectedItem = ChangeTrackingObject.CreateTrackable <TestItem>();
var expectedChangeAction = ChangeAction.Remove;
var subject = new ChangeContainerItem <TestItem>(expectedItem, ChangeTarget.Collection, expectedChangeAction);
var expectedPath = ChangePath.Create("Path");
var result = subject.GetChangeSet(expectedPath);
var kvp = Assert.Single(result);
Assert.Equal(ChangeTarget.Object, kvp.Key.Target);
Assert.Contains(expectedPath, result as IDictionary <ChangePath, List <ChangeValue> >);
var values = result[expectedPath];
var value = Assert.Single(values);
Assert.Equal(expectedChangeAction, value.Action);
Assert.Null(value.NewValue);
Assert.Same(expectedItem, value.OldValue);
}