forked from woggioni/rbcs
renamed project to "Remote Cache Build Server" (RBCS)
This commit is contained in:
@@ -0,0 +1,148 @@
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package net.woggioni.rbcs.client
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import io.netty.util.concurrent.DefaultEventExecutorGroup
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import io.netty.util.concurrent.EventExecutorGroup
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import net.woggioni.rbcs.common.contextLogger
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import org.junit.jupiter.api.Assertions
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import org.junit.jupiter.api.extension.ExtensionContext
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import org.junit.jupiter.params.ParameterizedTest
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import org.junit.jupiter.params.provider.Arguments
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import org.junit.jupiter.params.provider.ArgumentsProvider
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import org.junit.jupiter.params.provider.ArgumentsSource
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import java.util.concurrent.CompletableFuture
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import java.util.stream.Stream
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import kotlin.random.Random
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class RetryTest {
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data class TestArgs(
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val seed: Int,
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val maxAttempt: Int,
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val initialDelay: Double,
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val exp: Double,
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)
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class TestArguments : ArgumentsProvider {
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override fun provideArguments(context: ExtensionContext): Stream<out Arguments> {
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return Stream.of(
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TestArgs(
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seed = 101325,
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maxAttempt = 5,
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initialDelay = 50.0,
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exp = 2.0,
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),
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TestArgs(
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seed = 101325,
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maxAttempt = 20,
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initialDelay = 100.0,
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exp = 1.1,
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),
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TestArgs(
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seed = 123487,
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maxAttempt = 20,
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initialDelay = 100.0,
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exp = 2.0,
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),
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TestArgs(
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seed = 20082024,
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maxAttempt = 10,
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initialDelay = 100.0,
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exp = 2.0,
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)
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).map {
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object: Arguments {
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override fun get() = arrayOf(it)
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}
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}
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}
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}
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@ArgumentsSource(TestArguments::class)
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@ParameterizedTest
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fun test(testArgs: TestArgs) {
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val log = contextLogger()
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log.debug("Start")
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val executor: EventExecutorGroup = DefaultEventExecutorGroup(1)
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val attempts = mutableListOf<Pair<Long, OperationOutcome<Int>>>()
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val outcomeHandler = OutcomeHandler<Int> { outcome ->
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when(outcome) {
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is OperationOutcome.Success -> {
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if(outcome.result % 10 == 0) {
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OutcomeHandlerResult.DoNotRetry()
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} else {
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OutcomeHandlerResult.Retry(null)
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}
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}
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is OperationOutcome.Failure -> {
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when(outcome.ex) {
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is IllegalStateException -> {
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log.debug(outcome.ex.message, outcome.ex)
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OutcomeHandlerResult.Retry(null)
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}
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else -> {
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OutcomeHandlerResult.DoNotRetry()
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}
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}
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}
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}
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}
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val random = Random(testArgs.seed)
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val future =
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executeWithRetry(executor, testArgs.maxAttempt, testArgs.initialDelay, testArgs.exp, outcomeHandler) {
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val now = System.nanoTime()
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val result = CompletableFuture<Int>()
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executor.submit {
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val n = random.nextInt(0, Integer.MAX_VALUE)
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log.debug("Got new number: {}", n)
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if(n % 3 == 0) {
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val ex = IllegalStateException("Value $n can be divided by 3")
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result.completeExceptionally(ex)
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attempts += now to OperationOutcome.Failure(ex)
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} else if(n % 7 == 0) {
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val ex = RuntimeException("Value $n can be divided by 7")
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result.completeExceptionally(ex)
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attempts += now to OperationOutcome.Failure(ex)
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} else {
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result.complete(n)
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attempts += now to OperationOutcome.Success(n)
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}
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}
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result
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}
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Assertions.assertTrue(attempts.size <= testArgs.maxAttempt)
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val result = future.handle { res, ex ->
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if(ex != null) {
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val err = ex.cause ?: ex
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log.debug(err.message, err)
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OperationOutcome.Failure(err)
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} else {
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OperationOutcome.Success(res)
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}
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}.get()
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for ((index, attempt) in attempts.withIndex()) {
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val (timestamp, value) = attempt
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if (index > 0) {
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/* Check the delay for subsequent attempts is correct */
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val previousAttempt = attempts[index - 1]
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val expectedTimestamp =
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previousAttempt.first + testArgs.initialDelay * Math.pow(testArgs.exp, index.toDouble()) * 1e6
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val actualTimestamp = timestamp
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val err = Math.abs(expectedTimestamp - actualTimestamp) / expectedTimestamp
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Assertions.assertTrue(err < 1e-3)
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}
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if (index == attempts.size - 1 && index < testArgs.maxAttempt - 1) {
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/*
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* If the last attempt index is lower than the maximum number of attempts, then
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* check the outcome handler returns DoNotRetry
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*/
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Assertions.assertTrue(outcomeHandler.shouldRetry(value) is OutcomeHandlerResult.DoNotRetry)
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} else if (index < attempts.size - 1) {
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/*
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* If the attempt is not the last attempt check the outcome handler returns Retry
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*/
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Assertions.assertTrue(outcomeHandler.shouldRetry(value) is OutcomeHandlerResult.Retry)
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}
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}
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}
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}
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21
rbcs-client/src/test/resources/logback.xml
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21
rbcs-client/src/test/resources/logback.xml
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<?xml version="1.0" encoding="UTF-8" ?>
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<!DOCTYPE configuration>
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<configuration>
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<import class="ch.qos.logback.classic.encoder.PatternLayoutEncoder"/>
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<import class="ch.qos.logback.core.ConsoleAppender"/>
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<appender name="console" class="ConsoleAppender">
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<target>System.err</target>
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<encoder class="PatternLayoutEncoder">
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<pattern>%d [%highlight(%-5level)] \(%thread\) %logger{36} -%kvp- %msg %n</pattern>
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</encoder>
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</appender>
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<root level="info">
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<appender-ref ref="console"/>
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</root>
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<logger name="io.netty" level="info"/>
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<logger name="com.google.code.yanf4j" level="warn"/>
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<logger name="net.rubyeye.xmemcached" level="warn"/>
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</configuration>
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@@ -0,0 +1,16 @@
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<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
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<rbcs-client:profiles xmlns:xs="http://www.w3.org/2001/XMLSchema-instance"
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xmlns:rbcs-client="urn:net.woggioni.rbcs.client"
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xs:schemaLocation="urn:net.woggioni.rbcs.client jms://net.woggioni.rbcs.client/net/woggioni/rbcs/client/schema/rbcs-client.xsd"
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>
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<profile name="profile1" base-url="https://rbcs1.example.com/">
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<tls-client-auth
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key-store-file="keystore.pfx"
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key-store-password="password"
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key-alias="woggioni@c962475fa38"
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key-password="key-password"/>
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</profile>
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<profile name="profile2" base-url="https://rbcs2.example.com/">
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<basic-auth user="user" password="password"/>
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</profile>
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</rbcs-client:profiles>
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