feature: add TCC three-phase hooks (apache#6731)

integration-tx-api/src/test/java/org/apache/seata/integration/tx/api/fence/hook/TccHookManagerTest.java

@@ -0,0 +1,76 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.apache.seata.integration.tx.api.fence.hook;
+
+
+import java.util.List;
+
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertTrue;
+import static org.junit.jupiter.api.Assertions.assertThrows;
+import static org.mockito.Mockito.mock;
+
+
+public class TccHookManagerTest {
+
+    @BeforeEach
+    public void setUp() {
+        TccHookManager.clear();
+    }
+
+    @Test
+    public void testRegisterHook() {
+        TccHook hook = mock(TccHook.class);
+        TccHookManager.registerHook(hook);
+
+        List<TccHook> hooks = TccHookManager.getHooks();
+        assertEquals(1, hooks.size());
+        assertTrue(hooks.contains(hook));
+    }
+
+    @Test
+    public void testClear() {
+        TccHook hook = mock(TccHook.class);
+        TccHookManager.registerHook(hook);
+        List<TccHook> hooks = TccHookManager.getHooks();
+        assertEquals(1, hooks.size());
+        assertTrue(hooks.contains(hook));
+
+        TccHookManager.clear();
+
+        assertTrue(TccHookManager.getHooks().isEmpty());
+    }
+
+    @Test
+    public void testGetHooks() {
+        TccHook hook1 = mock(TccHook.class);
+        TccHook hook2 = mock(TccHook.class);
+        TccHookManager.registerHook(hook1);
+        TccHookManager.registerHook(hook2);
+
+        List<TccHook> hooks = TccHookManager.getHooks();
+        assertEquals(2, hooks.size());
+        assertTrue(hooks.contains(hook1));
+        assertTrue(hooks.contains(hook2));
+
+        // Check unmodifiable list
+        assertThrows(UnsupportedOperationException.class, () -> hooks.add(mock(TccHook.class)));
+    }
+}