content: /*
   * 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 com.damon.cqrs.spi;
  
  import com.damon.cqrs.spi.fixture.*;
  import org.junit.Test;
  
  import java.lang.reflect.InvocationTargetException;
  import java.lang.reflect.Method;
  import java.net.MalformedURLException;
  import java.net.URL;
  import java.util.HashMap;
  import java.util.List;
  import java.util.Map;
  
  import static org.hamcrest.CoreMatchers.containsString;
  import static org.hamcrest.CoreMatchers.is;
  import static org.hamcrest.MatcherAssert.assertThat;
  import static org.junit.Assert.*;
  
  /**
   * The type Extension loader test.
   */
  public final class ExtensionLoaderTest {
  
      /**
       * Test spi.
       */
      @Test
      public void testSPI() {
          JdbcSPI jdbcSPI = ExtensionLoader.getExtensionLoader(JdbcSPI.class).getJoin("mysql");
          assertThat(jdbcSPI.getClass().getName(), is(MysqlSPI.class.getName()));
      }
  
      /**
       * Test spi list.
       */
      @Test
      public void testSPIList() {
          List<ListSPI> joins = ExtensionLoader.getExtensionLoader(ListSPI.class).getJoins();
          assertEquals(joins.size(), 2);
          assertThat(joins.get(0).getClass().getName(), is(ArrayListSPI.class.getName()));
          assertThat(joins.get(1).getClass().getName(), is(LinkedListSPI.class.getName()));
      }
  
      /**
       * Test spi empty spi.
       */
      @Test
      public void testSPIEmptySPI() {
          List<EmptySPI> joins = ExtensionLoader.getExtensionLoader(EmptySPI.class).getJoins();
          assertEquals(joins.size(), 0);
      }
  
      /**
       * test SPI has default value case.
       */
      @Test
      public void testSPIGetDefaultJoin() {
          HasDefaultSPI spi = ExtensionLoader.getExtensionLoader(HasDefaultSPI.class).getDefaultJoin();
          assert spi != null;
          assertThat(spi.getClass().getName(), is(SubHasDefaultSPI.class.getName()));
      }
  
      /**
       * test SPI no default value case.
       */
      @Test
      public void testSPINoDefaultJoin() {
          JdbcSPI jdbcSPI = ExtensionLoader.getExtensionLoader(JdbcSPI.class).getDefaultJoin();
          assertNull(jdbcSPI);
      }
  
      /**
       * test ExtensionLoader.getJoin() blank name param case.
       */
      @Test
      public void testSPIGetJoinNameIsBlank() {
          try {
              ExtensionLoader.getExtensionLoader(JdbcSPI.class).getJoin("");
              fail();
          } catch (NullPointerException expected) {
              assertThat(expected.getMessage(), containsString("get join name is null"));
          }
      }
  
      /**
       * test ExtensionLoader.getExtensionLoader() null param case.
       */
      @Test
      public void testGetExtensionLoaderIsNull() {
          try {
              ExtensionLoader.getExtensionLoader(null);
              fail();
          } catch (NullPointerException expected) {
              assertThat(expected.getMessage(), containsString("extension clazz is null"));
          }
      }
  
      /**
       * test ExtensionLoader.getExtensionLoader() param is not interface case.
       */
      @Test
      public void testGetExtensionLoaderNotInterface() {
          try {
              ExtensionLoader.getExtensionLoader(ExtensionLoaderTest.class);
              fail();
          } catch (IllegalArgumentException expected) {
              assertThat(expected.getMessage(),
                      containsString("extension clazz (class com.damon.cqrs.spi.ExtensionLoaderTest) is not interface!"));
          }
      }
  
      /**
       * test ExtensionLoader.getExtensionLoader() param is not have SPI annotation case.
       */
      @Test
      public void testGetExtensionLoaderNotSpiAnnotation() {
          try {
              ExtensionLoader.getExtensionLoader(NopSPI.class);
              fail();
          } catch (IllegalArgumentException expected) {
              assertThat(expected.getMessage(),
                      containsString("extension clazz (interface com.damon.cqrs.spi.fixture.NopSPI) without @interface com.damon.cqrs.spi.SPI Annotation"));
          }
      }
  
      /**
       * test ExtensionLoader.getJoin() param nonentity SPI name case.
       */
      @Test
      public void testGetExtensionLoaderNonentitySPIName() {
          try {
              ExtensionLoader.getExtensionLoader(JdbcSPI.class).getJoin("nonentitySPIName");
              fail();
          } catch (IllegalArgumentException expected) {
              assertThat(expected.getMessage(), containsString("name is error"));
          }
      }
  
      /**
       * test ExtensionLoader.getJoin() param name not interface subType case.
       */
      @Test
      public void testGetExtensionLoaderSPISubTypeNotMatchInterface() {
          try {
              ExtensionLoader.getExtensionLoader(NotMatchSPI.class).getJoin("subNoJoinSPI");
              fail();
          } catch (IllegalStateException expected) {
              assertThat(expected.getMessage(),
                      containsString("load extension resources error,class com.damon.cqrs.spi.fixture.SubNoJoinSPI subtype is not of interface com.damon.cqrs.spi.fixture.NotMatchSPI"));
          }
      }
  
      /**
       * test ExtensionLoader.getJoin() param name no class match case.
       */
      @Test
      public void testGetExtensionLoaderNoClassMatchSPI() {
          try {
              ExtensionLoader.getExtensionLoader(NoClassMatchSPI.class).getJoin("subNoClassMatchSPI");
              fail();
          } catch (IllegalStateException expected) {
              assertThat(expected.getMessage(), containsString("load extension resources error"));
          }
      }
  
      /**
       * test ExtensionLoader.getJoin() param no join case.
       */
      @Test
      public void testGetExtensionLoaderNoJoinSPI() {
          try {
              ExtensionLoader.getExtensionLoader(NoJoinSPI.class).getJoin("subNoJoinSPI");
              fail();
          } catch (IllegalStateException expected) {
              assertThat(expected.getMessage(),
                      containsString("load extension resources error,class com.damon.cqrs.spi.fixture.SubNoJoinSPI without @interface com.damon.cqrs.spi.Join annotation"));
          }
      }
  
      /**
       * test ExtensionLoader.getJoin() param SPI class can not instantiated case.
       */
      @Test
      public void testGetExtensionLoaderCanNotInstantiatedSPI() {
          try {
              ExtensionLoader.getExtensionLoader(JdbcSPI.class).getJoin("canNotInstantiated");
              fail();
          } catch (IllegalStateException expected) {
              assertThat(expected.getMessage(), containsString(
                      "Extension instance(name: canNotInstantiated, class: class com.damon.cqrs.spi.fixture.CanNotInstantiatedSPI)"));
          }
      }
  
      /**
       * test loadClass duplicate class case.
       *
       * @throws NoSuchMethodException     the no such method exception
       * @throws InvocationTargetException the invocation target exception
       * @throws IllegalAccessException    the illegal access exception
       */
      @Test
      public void testLoadClassDuplicateKey() throws NoSuchMethodException, InvocationTargetException, IllegalAccessException {
          Method loadClassMethod = getLoadClassMethod();
          ExtensionLoader<JdbcSPI> extensionLoader = ExtensionLoader.getExtensionLoader(JdbcSPI.class);
          Map<String, Class<?>> classes = new HashMap<>();
          loadClassMethod.invoke(extensionLoader, classes, "mysql", "com.damon.cqrs.spi.fixture.MysqlSPI");
          try {
              loadClassMethod.invoke(extensionLoader, classes, "mysql", "com.damon.cqrs.spi.fixture.OracleSPI");
              fail();
          } catch (InvocationTargetException expect) {
              assertThat(expect.getTargetException().getMessage(), containsString(
                      "load extension resources error,Duplicate class com.damon.cqrs.spi.fixture.JdbcSPI name mysql on "
                              + "com.damon.cqrs.spi.fixture.MysqlSPI or com.damon.cqrs.spi.fixture.OracleSPI"));
          }
      }
  
      /**
       * test loadResources url IO Exception case.
       *
       * @throws NoSuchMethodException  the no such method exception
       * @throws MalformedURLException  the malformed url exception
       * @throws IllegalAccessException the illegal access exception
       */
      @Test
      public void loadResourcesIOException()
              throws NoSuchMethodException, MalformedURLException, IllegalAccessException {
          Method loadResourcesMethod = getLoadResources();
          ExtensionLoader<JdbcSPI> extensionLoader = ExtensionLoader.getExtensionLoader(JdbcSPI.class);
          try {
              loadResourcesMethod.invoke(extensionLoader, new HashMap<>(),
                      new URL("file:/com.damon.cqrs.spi.fixture.NoExistSPI"));
              fail();
          } catch (InvocationTargetException expect) {
              assertThat(expect.getTargetException().getMessage(), containsString("load extension resources error"));
          }
      }
  
      /**
       * get private loadClass method.
       */
      private Method getLoadClassMethod() throws NoSuchMethodException {
          Method method = ExtensionLoader.class.getDeclaredMethod("loadClass", Map.class, String.class, String.class);
          method.setAccessible(true);
          return method;
      }
  
      /**
       * get private loadResources method.
       */
      private Method getLoadResources() throws NoSuchMethodException {
          Method method = ExtensionLoader.class.getDeclaredMethod("loadResources", Map.class, URL.class);
          method.setAccessible(true);
          return method;
      }
  }
  