public void FindChildren_NoChildren_ReturnsEmpty()
{
// Arrange
var treeContext = new DbTreeContext();
var parentId = Guid.NewGuid();
TreeNode[] expectedNodes =
{
new TreeNode
{
Id = Guid.NewGuid(),
ParentId = parentId
},
new TreeNode
{
Id = Guid.NewGuid(),
ParentId = parentId
}
};
treeContext.Tree.Add(expectedNodes[0].Id, expectedNodes[0]);
treeContext.Tree.Add(expectedNodes[1].Id, expectedNodes[1]);
var dbTreeRepository = new DbTreeRepository(treeContext);
// Act
IEnumerable <TreeNode> nodes = dbTreeRepository.FindChildren(Guid.NewGuid());
// Assert
Assert.That(nodes, Is.Empty);
}
public void FindChildren_ParentIdIsNull_ReturnsRoot()
{
// Arrange
var treeContext = new DbTreeContext();
var root = new TreeNode
{
Id = Guid.NewGuid()
};
var node = new TreeNode
{
Id = Guid.NewGuid(),
ParentId = Guid.NewGuid()
};
treeContext.Tree.Add(root.Id, root);
treeContext.Tree.Add(node.Id, node);
var dbTreeRepository = new DbTreeRepository(treeContext);
// Act
IEnumerable <TreeNode> nodes = dbTreeRepository.FindChildren(null);
// Assert
Assert.That(nodes, Is.EquivalentTo(new[] { root }));
}