public void DocumentNumber_Method()
{
Assert.Throws<ArgumentNullException>(() => new LawsLawApiCall().DocumentNumber(null));
Assert.Throws<ArgumentException>(() => new LawsLawApiCall().DocumentNumber(string.Empty));
var call = new LawsLawApiCall();
Assert.False(call.Parameters.ContainsKey("document_number"));
Assert.True(ReferenceEquals(call.DocumentNumber("documentNumber"), call));
Assert.Equal("documentNumber", call.Parameters["document_number"]);
}
