inst/tinytest/test_enums.R

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

# Copyright 2011 Google Inc.
#
# 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)

#test.enums <- function() {
ProtoFormat <- P("tutorial.Person")

## value(..) returns an EnumValueDescriptor object

expect_equal(name(value(ProtoFormat$PhoneType, index=1)), "MOBILE")
expect_equal(name(value(ProtoFormat$PhoneType, index=1), TRUE),
            "tutorial.Person.MOBILE")
expect_equal(number(value(ProtoFormat$PhoneType, index=1)), 0)
expect_true(inherits(enum_type(value(ProtoFormat$PhoneType, index=1)),
                   "EnumDescriptor"))
expect_true(inherits(asMessage(value(ProtoFormat$PhoneType, index=1)),
                   "Message"))

## Now check the '$' interfaces
expect_equal(name(value(ProtoFormat$PhoneType, index=1)),
            value(ProtoFormat$PhoneType, index=1)$name())
expect_equal(number(value(ProtoFormat$PhoneType, index=1)),
            value(ProtoFormat$PhoneType, index=1)$number())

expect_equal(name(value(ProtoFormat$PhoneType, index=2)), "HOME")


expect_equal(length(ProtoFormat$PhoneType), 3)
expect_true(has(ProtoFormat$PhoneType, "WORK"))
expect_true(!has(ProtoFormat$PhoneType, "NONEXISTANT"))

## Verify we can subset the EnumDescriptor class
expect_equal(ProtoFormat$PhoneType[["WORK"]], 2)
expect_equal(ProtoFormat$PhoneType[["MOBILE"]], 0)

## Verify that invalid indices are returned as NULL.
expect_true(is.null(value(ProtoFormat$PhoneType, index=900)))

## Verify that we import top-level enums from .proto files.
if (!exists("protobuf_unittest.TestAllTypes",
            "RProtoBuf:DescriptorPool")) {
    unittest.proto.file <- system.file("tinytest", "data", "unittest.proto", package="RProtoBuf")
    readProtoFiles(file=unittest.proto.file)
}
expect_true(inherits(P("protobuf_unittest.ForeignEnum"), "EnumDescriptor"))
#}