From 5a365dbc068f2a8cdfa9813c39cc84bb30e15637 Mon Sep 17 00:00:00 2001
From: Dante Niewenhuis <d.niewenhuis@hotmail.com>
Date: Fri, 25 Oct 2024 13:32:41 +0200
Subject: Rewrote the  FlowEngine (#256)

* Removed unused components. Updated tests.

Improved checkpointing model

Improved model, started with SimPowerSource

implemented FailureModels and Checkpointing

First working version

midway commit

first update

All simulation are now run with a single CPU and single MemoryUnit. multi CPUs are combined into one. This is for performance and explainability.

* fixed merge conflicts

* Updated M3SA paths.

* Fixed small typo
---
 .../src/test/kotlin/InvocationStackTest.kt         | 70 ++++++++++++++++++++++
 1 file changed, 70 insertions(+)
 create mode 100644 opendc-simulator/opendc-simulator-flow/src/test/kotlin/InvocationStackTest.kt

(limited to 'opendc-simulator/opendc-simulator-flow/src/test/kotlin/InvocationStackTest.kt')

diff --git a/opendc-simulator/opendc-simulator-flow/src/test/kotlin/InvocationStackTest.kt b/opendc-simulator/opendc-simulator-flow/src/test/kotlin/InvocationStackTest.kt
new file mode 100644
index 00000000..7744d7b2
--- /dev/null
+++ b/opendc-simulator/opendc-simulator-flow/src/test/kotlin/InvocationStackTest.kt
@@ -0,0 +1,70 @@
+/*
+ * 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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