public void TestCreateChildrenShouldNotAddNullNodeIfColumnHasNoNulls()
{
var column = new ColumnBuilder().WithValue(string.Empty).Build();
var root = new StringFilterTreeRoot(string.Empty, column);
var results = root.CreateChildren();
Assert.That(results.FirstOrDefault() is NullFilterTreeLeaf, Is.False);
}
public void TestCreateShouldReturnLeavesAfterMaxDepthOfThree()
{
var values = CreateDeepValues('A', 20, 4);
var column = new ColumnBuilder().WithValues(values).Build();
var root = new StringFilterTreeRoot(string.Empty, column);
var node1 = root.CreateChildren().Single();
var node2 = node1.CreateChildren().Single();
var node3 = node2.CreateChildren().Single();
var result = node3.CreateChildren();
Assert.That(result.All(p => p is StringFilterTreeLeaf));
}
