test: add the Test003 class

src/test/java/testjoltjni/junit/Test003.java

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+/*
+Copyright (c) 2024 Stephen Gold
+
+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 testjoltjni.junit;
+
+import com.github.stephengold.joltjni.JobSystem;
+import com.github.stephengold.joltjni.JobSystemSingleThreaded;
+import com.github.stephengold.joltjni.JobSystemThreadPool;
+import com.github.stephengold.joltjni.Jolt;
+import org.junit.Assert;
+import org.junit.Test;
+import testjoltjni.Utils;
+
+/**
+ * An automated JUnit4 test for jolt-jni object creation, destruction, and
+ * defaults.
+ *
+ * @author Stephen Gold [email protected]
+ */
+public class Test003 {
+    // *************************************************************************
+    // new methods exposed
+
+    /**
+     * Test jolt-jni object creation, destruction, and defaults.
+     */
+    @Test
+    public void test003() {
+        Utils.loadNativeLibrary();
+
+        Jolt.registerDefaultAllocator();
+        Jolt.installDefaultTraceCallback();
+        Jolt.installDefaultAssertCallback();
+        Jolt.newFactory();
+        Jolt.registerTypes();
+
+        // JobSystemSingleThreaded:
+        {
+            final int maxJobs = 4_096;
+            JobSystem jobSystem = new JobSystemSingleThreaded(maxJobs);
+
+            Assert.assertEquals(1, jobSystem.getMaxConcurrency());
+            Assert.assertTrue(jobSystem.hasAssignedNativeObject());
+            Assert.assertTrue(jobSystem.ownsNativeObject());
+            Assert.assertNotEquals(0L, jobSystem.va());
+            jobSystem.close();
+        }
+
+        // JobSystemThreadPool:
+        {
+            final int maxJobs = 4_096;
+            final int maxBarriers = 4;
+            JobSystem jobSystem
+                    = new JobSystemThreadPool(maxJobs, maxBarriers);
+
+            int numCpus = Runtime.getRuntime().availableProcessors();
+            Assert.assertEquals(numCpus, jobSystem.getMaxConcurrency());
+
+            Assert.assertTrue(jobSystem.hasAssignedNativeObject());
+            Assert.assertTrue(jobSystem.ownsNativeObject());
+            Assert.assertNotEquals(0L, jobSystem.va());
+            jobSystem.close();
+        }
+    }
+}