public void Intersection()
{
// Only test a simple case here and expect
// {@link FieldMaskTreeTest#IntersectFieldPath} to cover all scenarios.
FieldMask mask1 = FieldMask.FromString("foo,bar.baz,bar.quz");
FieldMask mask2 = FieldMask.FromString("foo.bar,bar");
FieldMask result = mask1.Intersection(mask2);
Assert.AreEqual(3, result.Paths.Count);
Assert.Contains("foo.bar", result.Paths);
Assert.Contains("bar.baz", result.Paths);
Assert.Contains("bar.quz", result.Paths);
Assert.That(result.Paths, Has.No.Member("foo"));
Assert.That(result.Paths, Has.No.Member("bar"));
}
