zzq1314zll commented on a change in pull request #11107: URL: https://github.com/apache/shardingsphere/pull/11107#discussion_r663716795
########## File path: shardingsphere-sql-parser/shardingsphere-sql-parser-engine/src/test/java/org/apache/shardingsphere/sql/parser/api/SQLParserEngineTest.java ########## @@ -0,0 +1,74 @@ +/* + * 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.sql.parser.api; + +import com.google.common.cache.CacheBuilder; +import com.google.common.cache.CacheLoader; +import com.google.common.cache.LoadingCache; +import org.antlr.v4.runtime.tree.ParseTree; +import org.apache.shardingsphere.sql.parser.core.database.parser.SQLParserExecutor; +import org.junit.Test; + +import javax.annotation.ParametersAreNonnullByDefault; + +import java.lang.reflect.Field; +import java.lang.reflect.Modifier; + +import static org.mockito.Mockito.mock; +import static org.mockito.Mockito.times; +import static org.mockito.Mockito.verify; +import static org.mockito.Mockito.when; + +public final class SQLParserEngineTest { + + private static final String SQL = "SELECT COUNT(*) FROM user"; + + @Test + public void assertParse() throws NoSuchFieldException, IllegalAccessException { + SQLParserExecutor sqlParserExecutor = mock(SQLParserExecutor.class); + when(sqlParserExecutor.parse(SQL)).thenReturn(mock(ParseTree.class)); + SQLParserEngine sqlParserEngine = new SQLParserEngine("H2"); + Field sqlParserExecutorFiled = sqlParserEngine.getClass().getDeclaredField("sqlParserExecutor"); + Field modifiersField = Field.class.getDeclaredField("modifiers"); + modifiersField.setAccessible(true); + modifiersField.setInt(sqlParserExecutorFiled, sqlParserExecutorFiled.getModifiers() & ~Modifier.FINAL); + Field modifiersField2 = Field.class.getDeclaredField("modifiers"); + modifiersField2.setAccessible(true); + Field parseTreeCacheField = sqlParserEngine.getClass().getDeclaredField("parseTreeCache"); + modifiersField2.setInt(parseTreeCacheField, sqlParserExecutorFiled.getModifiers() & ~Modifier.FINAL); + sqlParserExecutorFiled.setAccessible(true); + parseTreeCacheField.setAccessible(true); + sqlParserExecutorFiled.set(sqlParserEngine, sqlParserExecutor); + LoadingCache<String, ParseTree> parseTreeCache = CacheBuilder.newBuilder().softValues().initialCapacity(128) + .maximumSize(1024).concurrencyLevel(4).build(new CacheLoader<String, ParseTree>() { + @ParametersAreNonnullByDefault + @Override + public ParseTree load(final String sql) { + return sqlParserExecutor.parse(sql); + } + }); + parseTreeCacheField.set(sqlParserEngine, parseTreeCache); + sqlParserEngine.parse(SQL, true); + verify(sqlParserExecutor, times(1)).parse(SQL); + sqlParserEngine.parse(SQL, true); + verify(sqlParserExecutor, times(1)).parse(SQL); + sqlParserEngine.parse(SQL, false); + verify(sqlParserExecutor, times(2)).parse(SQL); + } + Review comment: I may not be familiar with SS, the last test can not be completed, sorry！Wait until I get familiar with it before continuing. -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected]
