[ISSUE alibaba#5092] Add unit tests for class ExternalUserPersistServ…

…iceImpl in nacos 2.0 (alibaba#6237)

* add unit test for ExternalUserPersistServiceImpl

* add unit test for ExternalUserPersistServiceImpl

config/src/test/java/com/alibaba/nacos/config/server/auth/ExternalUserPersistServiceImplTest.java

@@ -0,0 +1,107 @@
+/*
+ * Copyright 1999-2018 Alibaba Group Holding Ltd.
+ *
+ * Licensed 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.alibaba.nacos.config.server.auth;
+
+import com.alibaba.nacos.config.server.model.Page;
+import com.alibaba.nacos.config.server.model.User;
+import com.alibaba.nacos.config.server.service.repository.PaginationHelper;
+import com.alibaba.nacos.config.server.service.repository.extrnal.ExternalStoragePersistServiceImpl;
+import org.junit.Assert;
+import org.junit.Before;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.mockito.Mock;
+import org.mockito.Mockito;
+import org.mockito.junit.MockitoJUnitRunner;
+import org.springframework.jdbc.core.JdbcTemplate;
+
+import java.lang.reflect.Field;
+import java.util.List;
+
+@RunWith(MockitoJUnitRunner.class)
+public class ExternalUserPersistServiceImplTest {
+
+    @Mock
+    private ExternalStoragePersistServiceImpl persistService;
+
+    @Mock
+    private JdbcTemplate jdbcTemplate;
+
+    @Mock
+    private PaginationHelper paginationHelper;
+
+    private ExternalUserPersistServiceImpl externalUserPersistService;
+
+    @Before
+    public void setUp() throws Exception {
+        externalUserPersistService = new ExternalUserPersistServiceImpl();
+
+        Class<ExternalUserPersistServiceImpl> externalUserPersistServiceClass = ExternalUserPersistServiceImpl.class;
+        Field persistServiceClassDeclaredField = externalUserPersistServiceClass.getDeclaredField("persistService");
+        persistServiceClassDeclaredField.setAccessible(true);
+        persistServiceClassDeclaredField.set(externalUserPersistService, persistService);
+
+        Mockito.when(persistService.getJdbcTemplate()).thenReturn(jdbcTemplate);
+        Mockito.when(persistService.createPaginationHelper()).thenReturn(paginationHelper);
+        externalUserPersistService.init();
+    }
+
+    @Test
+    public void testCreateUser() {
+        externalUserPersistService.createUser("username", "password");
+
+        String sql = "INSERT into users (username, password, enabled) VALUES (?, ?, ?)";
+        Mockito.verify(jdbcTemplate).update(sql, "username", "password", true);
+    }
+
+    @Test
+    public void testDeleteUser() {
+        externalUserPersistService.deleteUser("username");
+
+        String sql = "DELETE from users WHERE username=?";
+        Mockito.verify(jdbcTemplate).update(sql, "username");
+    }
+
+    @Test
+    public void testUpdateUserPassword() {
+        externalUserPersistService.updateUserPassword("username", "password");
+
+        String sql = "UPDATE users SET password = ? WHERE username=?";
+        Mockito.verify(jdbcTemplate).update(sql, "password", "username");
+    }
+
+    @Test
+    public void testFindUserByUsername() {
+        User username = externalUserPersistService.findUserByUsername("username");
+
+        Assert.assertNull(username);
+    }
+
+    @Test
+    public void testGetUsers() {
+        Page<User> users = externalUserPersistService.getUsers(1, 10);
+
+        Assert.assertNotNull(users);
+    }
+
+    @Test
+    public void testFindUserLikeUsername() {
+        List<String> username = externalUserPersistService.findUserLikeUsername("username");
+
+        Assert.assertEquals(username.size(), 0);
+    }
+}