inst/tinytest/test_serialize.R

In RProtoBuf: R Interface to the 'Protocol Buffers' 'API' (Version 2 or 3)

## -*- indent-tabs-mode: nil; tab-width: 4; show-trailing-whitespace: t; c-indent-level: 4; c-basic-offset: 4; -*-
##  Copyright 2012 Google Inc. All Rights Reserved.
##  Author: Murray Stokely
##
##  This program is free software; you can redistribute it and/or
##  modify it under the terms of the GNU General Public License
##  as published by the Free Software Foundation; either version 2
##  of the License, or (at your option) any later version.
##
##  This program is distributed in the hope that it will be useful,
##  but WITHOUT ANY WARRANTY; without even the implied warranty of
##  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
##  GNU General Public License for more details.
##
##  You should have received a copy of the GNU General Public License
##  along with this program; if not, write to the Free Software
##  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.

library(RProtoBuf)

# this is executed before each test function
#.setUp <- function() {
if (!exists("tutorial.Person", "RProtoBuf:DescriptorPool")) {
    protofile <- system.file("proto", "addressbook.proto", package = "RProtoBuf")
    readProtoFiles(file = protofile)
}
#}

#test.arrayinputstream <- function() {
# Note: This class is experimental, and some parts of the design
# may need to change, but this works now.
stream <- ArrayInputStream(as.raw(0:10))
expect_equal(stream$ReadRaw(5), as.raw(0:4))

stringstream <- ArrayInputStream(as.raw(c(0x74, 0x65, 0x73, 0x74, 0x69, 0x6e, 0x67)))
expect_equal(stringstream$ReadString(as.integer(7)), "testing")

intstream <- ArrayInputStream(as.raw(c(0x9e, 0xa7, 0x05)))
expect_equal(intstream$ReadVarint32(), 86942)
#}

#test.encoding <- function() {
if (!exists("protobuf_encoding_test.Test1",
            "RProtoBuf:DescriptorPool")) {
    unittest.proto.file <- system.file("tinytest", "data", "encoding.proto",
                                       package="RProtoBuf")
    readProtoFiles(file=unittest.proto.file)
}

## Encoding examples from:
## https://developers.google.com/protocol-buffers/docs/encoding
test1 <- new(protobuf_encoding_test.Test1)
test1$a <- 150
expect_identical(test1$serialize(NULL), as.raw(c(0x08,0x96,0x01)))

test2 <- new(protobuf_encoding_test.Test2)
test2$b <- "testing"
expect_identical(test2$serialize(NULL),
               as.raw(c(0x12, 0x07, 0x74, 0x65, 0x73, 0x74, 0x69, 0x6e, 0x67)))

test3 <- new(protobuf_encoding_test.Test3)
test3$c$a <- 150
expect_identical(test3$serialize(NULL),
               as.raw(c(0x1a, 0x03, 0x08, 0x96, 0x01)))

test4 <- new(protobuf_encoding_test.Test4)
test4$d <- c(3, 270, 86942)
expect_identical(test4$serialize(NULL),
               as.raw(c(0x22, 0x06, 0x03, 0x8e, 0x02, 0x9e, 0xa7, 0x05)))
#}

#test.serialize <- function() {
person <- new(tutorial.Person)

expect_true(!person$isInitialized())
expect_error(serialize(person, NULL))
             #"Uninitialized object should fail to serialize.")
person$id <- 1
expect_error(serialize(person, NULL))
             #"Uninitialized object should fail to serialize.")
person$name <- "Murray"

expect_true(person$isInitialized())
expect_true(length(serialize(person, NULL)) > 1)
#}