add KeyspaceNotExistTest

src/main/java/com/jd/jdbc/vitess/VitessDriver.java

@@ -149,6 +149,8 @@ public Connection initConnect(String url, Properties info, boolean initOnly) thr
                 }
             }
             return new VitessConnection(url, prop, topoServer, resolver, vSchemaManager, defaultKeyspace);
+        } catch (SQLException e) {
+            throw e;
         } catch (Exception e) {
             throw new SQLException(e);
         }

src/test/java/com/jd/jdbc/vitess/KeyspaceNotExistTest.java

@@ -0,0 +1,47 @@
+/*
+Copyright 2021 JD Project Authors.
+
+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.jd.jdbc.vitess;
+
+import java.sql.Connection;
+import java.sql.DriverManager;
+import java.sql.SQLException;
+import java.sql.SQLSyntaxErrorException;
+import java.sql.Statement;
+import org.junit.Rule;
+import org.junit.Test;
+import org.junit.rules.ExpectedException;
+import testsuite.TestSuite;
+import testsuite.internal.TestSuiteShardSpec;
+
+public class KeyspaceNotExistTest extends TestSuite {
+    @Rule
+    public final ExpectedException thrown = ExpectedException.none();
+
+    @Test
+    public void case05() throws SQLException {
+        String keyspace = getKeyspace(Driver.of(TestSuiteShardSpec.TWO_SHARDS));
+        String connectionUrl = getConnectionUrl(Driver.of(TestSuiteShardSpec.TWO_SHARDS));
+        String keyspaceNotExist = keyspace + "not_exist";
+        connectionUrl = connectionUrl.replaceAll(keyspace, keyspaceNotExist);
+        thrown.expect(SQLSyntaxErrorException.class);
+        thrown.expectMessage("Unknown database '" + keyspaceNotExist + "'");
+        try (Connection connection = DriverManager.getConnection(connectionUrl);
+             Statement stmt = connection.createStatement();) {
+            stmt.executeQuery("select 1");
+        }
+    }
+}