public void LiteDbMutableNode_fails_on_removing_if_node_has_child_nodes()
{
// ARRANGE
var child = new LiteDbMutableNode <int>(this.nodes, new BsonDocument(), "a");
var secondChild = new LiteDbMutableNode <int>(this.nodes, new BsonDocument(), "b");
var node = new LiteDbMutableNode <int>(this.nodes, this.rootDocument).AddChild(child).AddChild(secondChild);
var grandChild = new LiteDbMutableNode <int>(this.nodes, new BsonDocument(), "c");
child.AddChild(grandChild);
// ACT
var result = node.RemoveAllChildNodes(recurse: false);
// ASSERT
// node has a child now
Assert.False(result);
Assert.True(node.HasChildNodes);
// check db
// all nodes are still there
Assert.Equal(4, this.nodes.FindAll().Count());
}
public void LiteDbMutableNode_fails_on_adding_child_without_key()
{
// ARRANGE
var child = new LiteDbMutableNode <int>(this.nodes, new BsonDocument());
var node = new LiteDbMutableNode <int>(this.nodes, this.rootDocument);
// ACT
var result = Assert.Throws <InvalidOperationException>(() => node.AddChild(child));
// ASSERT
Assert.Equal("Child node must have a key", result.Message);
// node is unchanged
Assert.False(node.HasChildNodes);
var(found, addedChild) = node.TryGetChildNode("a");
Assert.False(found);
Assert.False(node.ChildNodes.Any());
// check db
var rootDoc = this.nodes.Find(Query.EQ("key", null)).Single();
Assert.NotNull(rootDoc);
Assert.False(rootDoc.TryGetValue("cn", out var childNodesDoc));
}
public void LiteDbMutableNode_fails_on_adding_same_key_twice()
{
// ARRANGE
var child = new LiteDbMutableNode <int>(this.nodes, new BsonDocument(), "a");
child.TryGetId(out var childId);
var node = new LiteDbMutableNode <int>(this.nodes, this.rootDocument).AddChild(child);
var secondChild = new LiteDbMutableNode <int>(this.nodes, new BsonDocument(), "a");
// ACT
var result = Assert.Throws <InvalidOperationException>(() => node.AddChild(secondChild));
// ASSERT
Assert.Equal($"Node contains child node(id='{childId}') with same key='a'", result.Message);
// node is unchanged
Assert.True(node.HasChildNodes);
var(found, addedChild) = node.TryGetChildNode("a");
Assert.True(found);
Assert.Equal(child, addedChild);
Assert.Equal(child, node.ChildNodes.Single());
// check db
var rootDoc = this.nodes.Find(Query.EQ("key", null)).Single();
Assert.NotNull(rootDoc);
Assert.True(rootDoc.TryGetValue("cn", out var childNodesDoc));
Assert.Equal(1, childNodesDoc.AsDocument.Count);
Assert.True(childNodesDoc.AsDocument.TryGetValue("a", out var childDocId));
var childDoc = this.nodes.FindById(childDocId);
Assert.NotNull(childDoc);
Assert.True(childDoc.TryGetValue("key", out var childKey));
Assert.Equal("a", childKey.AsString);
}
public void LiteDbMutableNode_adds_child_to_current_instance()
{
// ARRANGE
var child = new LiteDbMutableNode <int>(this.nodes, new BsonDocument(), "a");
var node = new LiteDbMutableNode <int>(this.nodes, this.rootDocument);
// ACT
var result = node.AddChild(child);
// ASSERT
// node has a child now
Assert.Same(node, result);
Assert.True(node.HasChildNodes);
var(found, addedChild) = node.TryGetChildNode("a");
Assert.True(found);
Assert.Equal(child, addedChild);
Assert.Equal(child, node.ChildNodes.Single());
// check db
var rootDoc = this.nodes.Find(Query.EQ("key", null)).Single();
Assert.NotNull(rootDoc);
Assert.True(rootDoc.TryGetValue("cn", out var childNodesDoc));
Assert.Equal(1, childNodesDoc.AsDocument.Count);
Assert.True(childNodesDoc.AsDocument.TryGetValue("a", out var childDocId));
var childDoc = this.nodes.FindById(childDocId);
Assert.NotNull(childDoc);
Assert.True(childDoc.TryGetValue("key", out var childKey));
Assert.Equal("a", childKey.AsString);
}