Initial checkin

qqq-backend-core/src/test/java/com/kingsrook/qqq/backend/core/utils/CountingHashTest.java

@@ -0,0 +1,76 @@
+/*
+ * QQQ - Low-code Application Framework for Engineers.
+ * Copyright (C) 2021-2024.  Kingsrook, LLC
+ * 651 N Broad St Ste 205 # 6917 | Middletown DE 19709 | United States
+ * contact@kingsrook.com
+ * https://github.com/Kingsrook/
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package com.kingsrook.qqq.backend.core.utils;
+
+
+import java.util.Map;
+import com.kingsrook.qqq.backend.core.BaseTest;
+import org.junit.jupiter.api.Test;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertNull;
+
+
+/*******************************************************************************
+ ** Unit test for CountingHash 
+ *******************************************************************************/
+class CountingHashTest extends BaseTest
+{
+
+   /*******************************************************************************
+    **
+    *******************************************************************************/
+   @Test
+   void test()
+   {
+      CountingHash<String> countingHash = new CountingHash<>();
+
+      assertNull(countingHash.get("a"));
+
+      countingHash.add("a");
+      assertEquals(1, countingHash.get("a"));
+
+      countingHash.add("a");
+      assertEquals(2, countingHash.get("a"));
+
+      countingHash.add("a", 2);
+      assertEquals(4, countingHash.get("a"));
+
+      countingHash.add("b", 5);
+      assertEquals(5, countingHash.get("b"));
+   }
+
+
+
+   /*******************************************************************************
+    **
+    *******************************************************************************/
+   @Test
+   void testAlwaysMutable()
+   {
+      CountingHash<String> alwaysMutable = new CountingHash<>(Map.of("A", 5));
+      alwaysMutable.add("A");
+      alwaysMutable.add("B");
+      assertEquals(6, alwaysMutable.get("A"));
+      assertEquals(1, alwaysMutable.get("B"));
+   }
+
+}