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/*
* Copyright (C) 2016 Square, Inc.
*
* Licensed 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.
*/
package okio
import java.util.concurrent.Future
import java.util.zip.Deflater
import java.util.zip.GZIPInputStream
import java.util.zip.GZIPOutputStream
import okio.ByteString.Companion.decodeHex
import okio.HashingSink.Companion.sha256
import okio.TestUtil.SEGMENT_SIZE
import okio.TestUtil.randomSource
import okio.TestingExecutors.newExecutorService
import org.junit.Assert.assertEquals
import org.junit.Test
/** Slow running tests that run a large amount of data through a stream. */
class LargeStreamsTest {
@Test
fun test() {
val pipe = Pipe((1024 * 1024).toLong())
val future = readAllAndCloseAsync(randomSource(FOUR_GIB_PLUS_ONE), pipe.sink)
val hashingSink = sha256(blackholeSink())
readAllAndClose(pipe.source, hashingSink)
assertEquals(FOUR_GIB_PLUS_ONE, future.get() as Long)
assertEquals(SHA256_RANDOM_FOUR_GIB_PLUS_1, hashingSink.hash)
}
/** Note that this test hangs on Android. */
@Test
fun gzipSource() {
val pipe = Pipe(1024L * 1024)
val gzipOut = object : GZIPOutputStream(pipe.sink.buffer().outputStream()) {
init {
// Disable compression to speed up a slow test. Improved from 141s to 33s on one machine.
def.setLevel(Deflater.NO_COMPRESSION)
}
}
val future = readAllAndCloseAsync(
randomSource(FOUR_GIB_PLUS_ONE),
gzipOut.sink(),
)
val hashingSink = sha256(blackholeSink())
val gzipSource = GzipSource(pipe.source)
readAllAndClose(gzipSource, hashingSink)
assertEquals(FOUR_GIB_PLUS_ONE, future.get() as Long)
assertEquals(SHA256_RANDOM_FOUR_GIB_PLUS_1, hashingSink.hash)
}
/** Note that this test hangs on Android. */
@Test
fun gzipSink() {
val pipe = Pipe(1024L * 1024)
val gzipSink = GzipSink(pipe.sink)
// Disable compression to speed up a slow test. Improved from 141s to 35s on one machine.
gzipSink.deflater.setLevel(Deflater.NO_COMPRESSION)
val future = readAllAndCloseAsync(randomSource(FOUR_GIB_PLUS_ONE), gzipSink)
val hashingSink = sha256(blackholeSink())
val gzipIn = GZIPInputStream(pipe.source.buffer().inputStream())
readAllAndClose(gzipIn.source(), hashingSink)
assertEquals(FOUR_GIB_PLUS_ONE, future.get() as Long)
assertEquals(SHA256_RANDOM_FOUR_GIB_PLUS_1, hashingSink.hash)
}
/** Reads all bytes from `source` and writes them to `sink`. */
private fun readAllAndClose(source: Source, sink: Sink): Long {
var result = 0L
val buffer = Buffer()
while (true) {
val count = source.read(buffer, SEGMENT_SIZE.toLong())
if (count == -1L) break
sink.write(buffer, count)
result += count
}
source.close()
sink.close()
return result
}
/** Calls [readAllAndClose] on a background thread. */
private fun readAllAndCloseAsync(source: Source, sink: Sink): Future<Long> {
val executor = newExecutorService(0)
return try {
executor.submit<Long> { readAllAndClose(source, sink) }
} finally {
executor.shutdown()
}
}
companion object {
/** 4 GiB plus 1 byte. This is greater than what can be expressed in an unsigned int. */
const val FOUR_GIB_PLUS_ONE = 0x100000001L
/** SHA-256 of `TestUtil.randomSource(FOUR_GIB_PLUS_ONE)`. */
val SHA256_RANDOM_FOUR_GIB_PLUS_1 =
"9654947a655c5efc445502fd1bf11117d894b7812b7974fde8ca4a02c5066315".decodeHex()
}
}
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