protected virtual void TestQueryAllReturnsExpected(string code, TestSourceKind codeKind, string query, params string[] expected)
{
var current = TestSyntaxFactory.Parse(code, codeKind);
var results = new RoslynCSharpSyntaxQueryExecutor().QueryAll(current, ParseQuery(query));
Assert.Equal(expected, results.Select(r => r.ToString()).ToArray());
}