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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.
*/
package spark.util
import org.scalatest.FunSuite
import java.io.ByteArrayOutputStream
import java.util.concurrent.TimeUnit._
class RateLimitedOutputStreamSuite extends FunSuite {
private def benchmark[U](f: => U): Long = {
val start = System.nanoTime
f
System.nanoTime - start
}
test("write") {
val underlying = new ByteArrayOutputStream
val data = "X" * 41000
val stream = new RateLimitedOutputStream(underlying, 10000)
val elapsedNs = benchmark { stream.write(data.getBytes("UTF-8")) }
assert(SECONDS.convert(elapsedNs, NANOSECONDS) == 4)
assert(underlying.toString("UTF-8") == data)
}
}
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