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# Licensed to the Apache Software Foundation (ASF) under one
# or more contributor license agreements. See the NOTICE file
# distributed with this work for additional information
# regarding copyright ownership. The ASF licenses this file
# to you under the Apache License, Version 2.0 (the
# "License"); you may not use this file except in compliance
# with the License. You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing,
# software distributed under the License is distributed on an
# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
# KIND, either express or implied. See the License for the
# specific language governing permissions and limitations
# under the License.
test_that("MessageReader can be created from raw vectors", {
batch <- record_batch(x = 1:10)
bytes <- batch$serialize()
reader <- MessageReader$create(bytes)
message <- reader$ReadNextMessage()
expect_r6_class(message, "Message")
expect_equal(message$type, MessageType$RECORD_BATCH)
expect_r6_class(message$body, "Buffer")
expect_r6_class(message$metadata, "Buffer")
message <- reader$ReadNextMessage()
expect_null(message)
schema <- schema(x = int32())
bytes <- schema$serialize()
reader <- MessageReader$create(bytes)
message <- reader$ReadNextMessage()
expect_r6_class(message, "Message")
expect_equal(message$type, MessageType$SCHEMA)
expect_r6_class(message$body, "Buffer")
expect_r6_class(message$metadata, "Buffer")
message <- reader$ReadNextMessage()
expect_null(message)
})
test_that("MessageReader can be created from input stream", {
batch <- record_batch(x = 1:10)
bytes <- batch$serialize()
stream <- BufferReader$create(bytes)
expect_r6_class(stream, "BufferReader")
reader <- MessageReader$create(stream)
expect_r6_class(reader, "MessageReader")
message <- reader$ReadNextMessage()
expect_r6_class(message, "Message")
expect_equal(message$type, MessageType$RECORD_BATCH)
expect_r6_class(message$body, "Buffer")
expect_r6_class(message$metadata, "Buffer")
message <- reader$ReadNextMessage()
expect_null(message)
schema <- schema(x = int32())
bytes <- schema$serialize()
stream <- BufferReader$create(bytes)
expect_r6_class(stream, "BufferReader")
reader <- MessageReader$create(stream)
expect_r6_class(reader, "MessageReader")
message <- reader$ReadNextMessage()
expect_r6_class(message, "Message")
expect_equal(message$type, MessageType$SCHEMA)
expect_r6_class(message$body, "Buffer")
expect_r6_class(message$metadata, "Buffer")
message <- reader$ReadNextMessage()
expect_null(message)
})
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