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/*
* Copyright (c) 2022 AtLarge Research
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
package org.opendc.common
import kotlinx.coroutines.TimeoutCancellationException
import kotlinx.coroutines.delay
import kotlinx.coroutines.withContext
import kotlinx.coroutines.withTimeout
import kotlinx.coroutines.yield
import org.junit.jupiter.api.Assertions.assertEquals
import org.junit.jupiter.api.Test
import org.junit.jupiter.api.assertThrows
import org.opendc.simulator.kotlin.runSimulation
/**
* Test suite for [DispatcherCoroutineDispatcher].
*/
class DispatcherCoroutineDispatcherTest {
/**
* Tests if a dispatcher yields the correct time
*/
@Test
fun testYield() =
runSimulation {
withContext(dispatcher.asCoroutineDispatcher()) {
val startTime = dispatcher.currentTime
yield()
assertEquals(startTime, dispatcher.currentTime)
}
}
/**
* Tests if a dispatcher correctly delays
*/
@Test
fun testDelay() =
runSimulation {
withContext(dispatcher.asCoroutineDispatcher()) {
val startTime = dispatcher.currentTime
delay(10)
assertEquals(startTime + 10, dispatcher.currentTime)
}
}
/**
* Tests if a dispatcher correctly times out
*/
@Test
fun testTimeout() =
runSimulation {
withContext(dispatcher.asCoroutineDispatcher()) {
assertThrows<TimeoutCancellationException> {
withTimeout(10) {
delay(1000)
}
}
assertEquals(10, dispatcher.currentTime)
}
}
}
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