Add unit test for multi-release scheduler

core/src/test/java/com/github/games647/fastlogin/core/AsyncSchedulerTest.java

@@ -0,0 +1,70 @@
+/*
+ * SPDX-License-Identifier: MIT
+ *
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2015-2023 games647 and contributors
+ *
+ * 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 com.github.games647.fastlogin.core;
+
+import org.junit.jupiter.api.Assertions;
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.condition.DisabledForJreRange;
+import org.junit.jupiter.api.condition.EnabledForJreRange;
+import org.junit.jupiter.api.condition.JRE;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import java.util.concurrent.Executors;
+import java.util.concurrent.atomic.AtomicBoolean;
+
+class AsyncSchedulerTest {
+
+    @Test
+    @DisabledForJreRange(min = JRE.JAVA_21)
+    void legacyScheduler() {
+        Logger logger = LoggerFactory.getLogger(AsyncSchedulerTest.class);
+        AsyncScheduler scheduler = new AsyncScheduler(logger, Executors.newCachedThreadPool());
+
+        AtomicBoolean virtual = new AtomicBoolean(false);
+        scheduler.runAsync(() -> setVirtual(virtual)).join();
+
+        Assertions.assertFalse(virtual.get());
+    }
+
+    @Test
+    @EnabledForJreRange(min = JRE.JAVA_21)
+    void greenThread() {
+        Logger logger = LoggerFactory.getLogger(AsyncSchedulerTest.class);
+        AsyncScheduler scheduler = new AsyncScheduler(logger, Executors.newCachedThreadPool());
+
+        AtomicBoolean virtual = new AtomicBoolean(false);
+        scheduler.runAsync(() -> setVirtual(virtual)).join();
+
+        Assertions.assertTrue(virtual.get());
+    }
+
+    private static void setVirtual(AtomicBoolean virtual) {
+        if (Thread.currentThread().isVirtual()) {
+            virtual.set(true);
+        }
+    }
+}