public void QueryDescendantsAndSelf_ExecuteTwice_ReturnsArrayTwice()
{
var input = @"
{
""name"" : ""Root Object"",
""matchThis"" : ""find me."",
""children"" : [
{
""name"" : ""Skipped Child"",
""matchThis"": ""skip me."",
""children"" : [
{
""name"" : ""Skipped Grandchild 1"",
""matchThis"": ""skip me.""
},
{
""name"" : ""Matching Grandchild 1"",
""matchThis"": ""find me.""
}
]
},
{
""name"" : ""Matching Child"",
""matchThis"": ""find me."",
""children"" : [
{
""name"" : ""Matching Grandchild 2"",
""matchThis"": ""find me.""
},
{
""name"" : ""Skipped Grandchild 2"",
""matchThis"": ""skip me.""
}
]
}
]
}";
// returns in document order
var expected = new[]
{
new
{
Name = "Root Object"
},
new
{
Name = "Matching Grandchild 1"
},
new
{
Name = "Matching Child"
},
new
{
Name = "Matching Grandchild 2"
}
};
// define an anonymous object which contains only the fields we want to retrieve
var template = new { name=String.Empty, matchThis=String.Empty };
var source = new JsonReader().Query(input, template);
var query =
from descendant in source.DescendantsAndSelf()
where (descendant.matchThis == "find me.")
select new
{
Name = descendant.name
};
var actual = query.ToArray();
Assert.Equal(expected, actual, true);
var actual2 = query.ToArray();
Assert.Equal(expected, actual2, true);
}
