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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.
*/
import org.junit.jupiter.api.Assertions.assertEquals
import org.junit.jupiter.api.Assertions.assertFalse
import org.junit.jupiter.api.Assertions.assertTrue
import org.junit.jupiter.api.Test
import org.opendc.simulator.engine.InvocationStack
/**
* Test suite for the [InvocationStack] class.
*/
class InvocationStackTest {
private val stack = InvocationStack(2)
@Test
fun testPollEmpty() {
assertEquals(Long.MAX_VALUE, stack.poll())
}
@Test
fun testAddSingle() {
assertTrue(stack.tryAdd(10))
assertEquals(10, stack.poll())
}
@Test
fun testAddLater() {
assertTrue(stack.tryAdd(10))
assertFalse(stack.tryAdd(15))
assertEquals(10, stack.poll())
}
@Test
fun testAddEarlier() {
assertTrue(stack.tryAdd(10))
assertTrue(stack.tryAdd(5))
assertEquals(5, stack.poll())
assertEquals(10, stack.poll())
}
@Test
fun testCapacityExceeded() {
assertTrue(stack.tryAdd(10))
assertTrue(stack.tryAdd(5))
assertTrue(stack.tryAdd(2))
assertEquals(2, stack.poll())
assertEquals(5, stack.poll())
assertEquals(10, stack.poll())
}
}
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