public void TestVariablesStringBuilder()
{
IVariable v0 = new Variable <int>("id", 1);
IVariable v1 = new Variable <string>("name", "name");
Variables variables = new Variables("get", v0, v1);
StringBuilder str = new StringBuilder();
variables.AppendStringBuilder(str);
Assert.AreEqual("(id:$id,name:$name)", str.ToString());
}