fix #6946 add test cases for wrapper (#7272)

dubbo-common/src/test/java/org/apache/dubbo/common/extension/wrapper/Demo.java

@@ -0,0 +1,24 @@
+/*
+ * 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.dubbo.common.extension.wrapper;
+
+import org.apache.dubbo.common.extension.SPI;
+
+@SPI("demo")
+public interface Demo {
+    String echo(String msg);
+}

dubbo-common/src/test/java/org/apache/dubbo/common/extension/wrapper/WrapperTest.java

@@ -0,0 +1,40 @@
+/*
+ * 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.dubbo.common.extension.wrapper;
+
+import org.apache.dubbo.common.extension.ExtensionLoader;
+import org.apache.dubbo.common.extension.wrapper.impl.DemoWrapper;
+import org.apache.dubbo.common.extension.wrapper.impl.DemoWrapper2;
+import org.junit.jupiter.api.Test;
+
+import static org.junit.jupiter.api.Assertions.assertTrue;
+
+/**
+ * {@link org.apache.dubbo.common.extension.Wrapper} Test
+ *
+ * @since 2.7.5
+ */
+public class WrapperTest {
+
+    @Test
+    public void testWrapper() {
+        Demo demoWrapper = ExtensionLoader.getExtensionLoader(Demo.class).getExtension("demo");
+        assertTrue(demoWrapper instanceof DemoWrapper);
+        Demo demoWrapper2 = ExtensionLoader.getExtensionLoader(Demo.class).getExtension("demo2");
+        assertTrue(demoWrapper2 instanceof DemoWrapper2);
+    }
+}

dubbo-common/src/test/java/org/apache/dubbo/common/extension/wrapper/impl/DemoImpl.java

@@ -0,0 +1,26 @@
+/*
+ * 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.dubbo.common.extension.wrapper.impl;
+
+import org.apache.dubbo.common.extension.wrapper.Demo;
+
+public class DemoImpl implements Demo {
+    @Override
+    public String echo(String msg) {
+        return msg;
+    }
+}

dubbo-common/src/test/java/org/apache/dubbo/common/extension/wrapper/impl/DemoWrapper.java

@@ -0,0 +1,33 @@
+/*
+ * 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.dubbo.common.extension.wrapper.impl;
+
+import org.apache.dubbo.common.extension.Wrapper;
+import org.apache.dubbo.common.extension.wrapper.Demo;
+
+@Wrapper(matches = {"demo"}, mismatches = "demo2")
+public class DemoWrapper implements Demo {
+    private Demo demo;
+
+    public DemoWrapper(Demo demo) {
+        this.demo = demo;
+    }
+
+    public String echo(String msg) {
+        return demo.echo(msg);
+    }
+}

dubbo-common/src/test/java/org/apache/dubbo/common/extension/wrapper/impl/DemoWrapper2.java

@@ -0,0 +1,33 @@
+/*
+ * 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.dubbo.common.extension.wrapper.impl;
+
+import org.apache.dubbo.common.extension.Wrapper;
+import org.apache.dubbo.common.extension.wrapper.Demo;
+
+@Wrapper(matches = {"demo2"}, mismatches = {"demo"})
+public class DemoWrapper2 implements Demo {
+    private Demo demo;
+
+    public DemoWrapper2(Demo demo) {
+        this.demo = demo;
+    }
+
+    public String echo(String msg) {
+        return demo.echo(msg);
+    }
+}

dubbo-common/src/test/resources/META-INF/dubbo/internal/org.apache.dubbo.common.extension.wrapper.Demo

@@ -0,0 +1,4 @@
+demo=org.apache.dubbo.common.extension.wrapper.impl.DemoImpl
+wrapper=org.apache.dubbo.common.extension.wrapper.impl.DemoWrapper
+wrapper2=org.apache.dubbo.common.extension.wrapper.impl.DemoWrapper2
+demo2=org.apache.dubbo.common.extension.wrapper.impl.DemoImpl