changing HashMap to LinkedHashMap for deterministic iterations (#3164)

sharding-jdbc/sharding-jdbc-core/src/test/java/org/apache/shardingsphere/shardingjdbc/common/base/AbstractSQLTest.java

@@ -33,6 +33,7 @@ import java.sql.Connection;
 import java.sql.SQLException;
 import java.util.Arrays;
 import java.util.HashMap;
+import java.util.LinkedHashMap;
 import java.util.List;
 import java.util.Map;
 import java.util.Set;
@@ -62,7 +63,7 @@ public abstract class AbstractSQLTest {
     private static void createDataSources(final String dbName, final DatabaseType databaseType) {
         Map<String, DataSource> dataSourceMap = databaseTypeMap.get(databaseType);
         if (null == dataSourceMap) {
-            dataSourceMap = new HashMap<>();
+            dataSourceMap = new LinkedHashMap<>();
             databaseTypeMap.put(databaseType, dataSourceMap);
         }
         BasicDataSource result = buildDataSource(dbName, databaseType);

sharding-jdbc/sharding-jdbc-core/src/test/java/org/apache/shardingsphere/shardingjdbc/jdbc/core/statement/EncryptPreparedStatementTest.java

@@ -17,6 +17,7 @@
 
 package org.apache.shardingsphere.shardingjdbc.jdbc.core.statement;
 
+import org.apache.shardingsphere.core.database.DatabaseTypes;
 import org.apache.shardingsphere.core.constant.properties.ShardingPropertiesConstant;
 import org.apache.shardingsphere.shardingjdbc.common.base.AbstractEncryptJDBCDatabaseAndTableTest;
 import org.junit.Test;
@@ -149,7 +150,7 @@ public final class EncryptPreparedStatementTest extends AbstractEncryptJDBCDatab
     }
     
     private void assertResultSet(final int resultSetCount, final int id, final Object pwd, final Object assistPwd) throws SQLException {
-        try (Connection conn = getDatabaseTypeMap().values().iterator().next().values().iterator().next().getConnection(); 
+        try (Connection conn = getDatabaseTypeMap().get(DatabaseTypes.getActualDatabaseType("H2")).get("encrypt").getConnection();
              Statement stmt = conn.createStatement()) {
             ResultSet resultSet = stmt.executeQuery(SELECT_ALL_SQL);
             int count = 1;

sharding-jdbc/sharding-jdbc-core/src/test/java/org/apache/shardingsphere/shardingjdbc/jdbc/core/statement/EncryptStatementTest.java

@@ -17,6 +17,7 @@
 
 package org.apache.shardingsphere.shardingjdbc.jdbc.core.statement;
 
+import org.apache.shardingsphere.core.database.DatabaseTypes;
 import org.apache.shardingsphere.core.constant.properties.ShardingPropertiesConstant;
 import org.apache.shardingsphere.shardingjdbc.common.base.AbstractEncryptJDBCDatabaseAndTableTest;
 import org.junit.Test;
@@ -166,7 +167,7 @@ public final class EncryptStatementTest extends AbstractEncryptJDBCDatabaseAndTa
     }
     
     private void assertResultSet(final int resultSetCount, final int id, final Object pwd, final Object plain) throws SQLException {
-        try (Connection conn = getDatabaseTypeMap().values().iterator().next().values().iterator().next().getConnection();
+        try (Connection conn = getDatabaseTypeMap().get(DatabaseTypes.getActualDatabaseType("H2")).get("encrypt").getConnection();
              Statement stmt = conn.createStatement()) {
             ResultSet resultSet = stmt.executeQuery(SELECT_SQL_TO_ASSERT);
             int count = 1;