HikariJDBCParameterDecoratorTest added (#7268)

Co-authored-by: Nwangxichun <wangxichun@jd.com>

shardingsphere-proxy/shardingsphere-proxy-backend/src/test/java/org/apache/shardingsphere/proxy/backend/communication/jdbc/datasource/decorator/HikariJDBCParameterDecoratorTest.java

+/*
+ * 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.shardingsphere.proxy.backend.communication.jdbc.datasource.decorator;
+
+import com.zaxxer.hikari.HikariDataSource;
+import org.junit.Before;
+import org.junit.Test;
+import java.util.Properties;
+
+import static org.hamcrest.CoreMatchers.is;
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertThat;
+
+public final class HikariJDBCParameterDecoratorTest {
+    
+    private HikariJDBCParameterDecorator hikariJDBCParameterDecorator;
+    
+    @Before
+    public void setUp() {
+        hikariJDBCParameterDecorator = new HikariJDBCParameterDecorator();
+    }
+    
+    @Test
+    public void assertGetTypeResultIsHikariDataSource() {
+        assertEquals(HikariDataSource.class, hikariJDBCParameterDecorator.getType());
+    }
+    
+    @Test
+    public void assertDecoratedHikariDataSource() {
+        HikariDataSource hikariDataSource = new HikariDataSource();
+        hikariJDBCParameterDecorator.decorate(hikariDataSource);
+        Properties properties = hikariDataSource.getDataSourceProperties();
+        assertThat(properties.getProperty("useServerPrepStmts"), is(Boolean.TRUE.toString()));
+        assertThat(properties.getProperty("cachePrepStmts"), is(Boolean.TRUE.toString()));
+        assertThat(properties.getProperty("prepStmtCacheSize"), is("250"));
+        assertThat(properties.getProperty("prepStmtCacheSqlLimit"), is("2048"));
+        assertThat(properties.getProperty("useLocalSessionState"), is(Boolean.TRUE.toString()));
+        assertThat(properties.getProperty("rewriteBatchedStatements"), is(Boolean.TRUE.toString()));
+        assertThat(properties.getProperty("cacheResultSetMetadata"), is(Boolean.FALSE.toString()));
+        assertThat(properties.getProperty("cacheServerConfiguration"), is(Boolean.TRUE.toString()));
+        assertThat(properties.getProperty("elideSetAutoCommits"), is(Boolean.TRUE.toString()));
+        assertThat(properties.getProperty("maintainTimeStats"), is(Boolean.FALSE.toString()));
+        assertThat(properties.getProperty("netTimeoutForStreamingResults"), is("0"));
+        assertThat(properties.getProperty("tinyInt1isBit"), is(Boolean.FALSE.toString()));
+    }
+}