Executor/test/dorkbox/executor/InputStreamPumperTest.kt

136 lines
4.2 KiB
Kotlin

/*
* Copyright 2020 dorkbox, llc
* Copyright (C) 2014 ZeroTurnaround <support@zeroturnaround.com>
* Contains fragments of code from Apache Commons Exec, rights owned
* by Apache Software Foundation (ASF).
*
* 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 dorkbox.executor
import dorkbox.executor.samples.PrintInputToOutput
import dorkbox.executor.samples.TestSetup
import dorkbox.executor.stream.PumpStreamHandler
import kotlinx.coroutines.delay
import kotlinx.coroutines.launch
import kotlinx.coroutines.runBlocking
import org.junit.jupiter.api.Assertions
import org.junit.jupiter.api.Test
import java.io.ByteArrayInputStream
import java.io.ByteArrayOutputStream
/**
* Tests that test redirected input for the process to be run.
*/
class InputStreamPumperTest {
@Test
@Throws(Exception::class)
fun testPumpFromInputToOutput() {
val str = "Tere Minu Uus vihik"
val bais = ByteArrayInputStream((str + "\n\n\n\n").toByteArray()) // 3\n necessary to tell the java side to stop
val baos = ByteArrayOutputStream()
val handler = PumpStreamHandler(baos, System.err, bais)
val exec = Executor("java", TestSetup.getFile(PrintInputToOutput::class.java))
.enableRead()
exec.streams(handler)
val result: String = runBlocking {
exec.start().output.utf8()
}
Assertions.assertEquals(str, result)
}
@Test
@Throws(Exception::class)
fun testPumpFromInputToOutputWithInput() {
val str = "Tere Minu Uus vihik"
val bais = ByteArrayInputStream((str + "\n\n\n\n").toByteArray()) // 3\n necessary to tell the java side to stop
val exec = Executor("java", TestSetup.getFile(PrintInputToOutput::class.java))
.enableRead()
.redirectInput(bais)
val result: String = runBlocking {
exec.start().output.utf8()
}
Assertions.assertEquals(str, result)
}
@Test
fun testConstantReadOutput() {
val exec = Executor("java", TestSetup.getFile(PrintInputToOutput::class.java))
.enableRead()
// .highPerformanceIO()
val output = runBlocking {
val async = exec.startAsShellAsync()
launch {
(0..10).forEach {
// our test uses a buffered input stream reader, so we have to write full lines for it to process.
// this is an implementation quirk. This is only necessary in this specific example.
async.writeLine("Testing: $it")
delay(1000L)
}
async.write("\n\n\n")
}
println("Gathering the values")
while (async.output.isOpen) {
print(async.output.utf8())
}
println("Done")
async.await()
async.output.utf8()
}
Assertions.assertEquals("", output)
}
@Test
fun testConstantReadOutputBuffered() {
val exec = Executor("java", TestSetup.getFile(PrintInputToOutput::class.java))
.enableRead()
// .highPerformanceIO()
val output = runBlocking {
val async = exec.startAsShellAsync()
launch {
(0..10).forEach {
async.writeLine("Testing the next value: $it")
delay(1000L)
}
async.write("\n\n\n")
}
println("Gathering the values")
while (async.output.isOpen) {
println(async.output.utf8Buffered())
}
println("xxx")
async.await()
async.output.utf8()
}
Assertions.assertEquals("", output)
}
}