[KYUUBI #4581] [TEST] Add KyuubiCommands parse python snippets unit test

### _Why are the changes needed?_

to resolve #4333 (comment)

### _How was this patch tested?_
- [ ] Add some test cases that check the changes thoroughly including negative and positive cases if possible

- [ ] Add screenshots for manual tests if appropriate

- [x] [Run test](https://kyuubi.readthedocs.io/en/master/develop_tools/testing.html#running-tests) locally before make a pull request

Closes #4581 from cfmcgrady/beeline-parser-python-ut.

Closes #4581

9bffa03 [Fu Chen] add KyuubiCommands parse python snippets unit test

Authored-by: Fu Chen <cfmcgrady@gmail.com>
Signed-off-by: Fu Chen <cfmcgrady@gmail.com>

kyuubi-hive-beeline/pom.xml

@@ -115,6 +115,12 @@
             <artifactId>commons-io</artifactId>
         </dependency>
 
+        <dependency>
+            <groupId>org.mockito</groupId>
+            <artifactId>mockito-core</artifactId>
+            <scope>test</scope>
+        </dependency>
+
         <dependency>
             <groupId>commons-lang</groupId>
             <artifactId>commons-lang</artifactId>

kyuubi-hive-beeline/src/main/java/org/apache/hive/beeline/KyuubiCommands.java

@@ -19,6 +19,7 @@
 
 import static org.apache.kyuubi.jdbc.hive.JdbcConnectionParams.*;
 
+import com.google.common.annotations.VisibleForTesting;
 import java.io.*;
 import java.sql.*;
 import java.util.*;
@@ -277,7 +278,8 @@ private boolean execute(String line, boolean call, boolean entireLineAsCommand)
    * quotations. It iterates through each character in the line and checks to see if it is a ;, ',
    * or "
    */
-  private List<String> getCmdList(String line, boolean entireLineAsCommand) {
+  @VisibleForTesting
+  public List<String> getCmdList(String line, boolean entireLineAsCommand) {
     List<String> cmdList = new ArrayList<String>();
     if (entireLineAsCommand) {
       cmdList.add(line);

kyuubi-hive-beeline/src/test/java/org/apache/hive/beeline/KyuubiCommandsTest.java

@@ -0,0 +1,45 @@
+/*
+ * 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.hive.beeline;
+
+import static org.junit.Assert.assertEquals;
+
+import java.io.IOException;
+import java.util.List;
+import jline.console.ConsoleReader;
+import org.junit.Test;
+import org.mockito.Mockito;
+
+public class KyuubiCommandsTest {
+  @Test
+  public void testParsePythonSnippets() throws IOException {
+    ConsoleReader reader = Mockito.mock(ConsoleReader.class);
+    String pythonSnippets = "for i in [1, 2, 3]:\n" + "    print(i)\n";
+    Mockito.when(reader.readLine()).thenReturn(pythonSnippets);
+
+    KyuubiBeeLine beeline = new KyuubiBeeLine();
+    beeline.setConsoleReader(reader);
+    KyuubiCommands commands = new KyuubiCommands(beeline);
+    String line = commands.handleMultiLineCmd(pythonSnippets);
+
+    List<String> cmdList = commands.getCmdList(line, false);
+    assertEquals(cmdList.size(), 1);
+    assertEquals(cmdList.get(0), pythonSnippets);
+  }
+}

pom.xml

@@ -173,6 +173,7 @@
         <ldapsdk.version>6.0.5</ldapsdk.version>
         <log4j.version>2.20.0</log4j.version>
         <mysql.jdbc.version>8.0.32</mysql.jdbc.version>
+        <mockito.version>4.6.1</mockito.version>
         <netty.version>4.1.89.Final</netty.version>
         <openai.java.version>0.11.1</openai.java.version>
         <parquet.version>1.10.1</parquet.version>
@@ -1109,6 +1110,13 @@
                 <version>${scalatestplus.version}</version>
             </dependency>
 
+            <dependency>
+                <groupId>org.mockito</groupId>
+                <artifactId>mockito-core</artifactId>
+                <version>${mockito.version}</version>
+                <scope>test</scope>
+            </dependency>
+
             <dependency>
                 <groupId>junit</groupId>
                 <artifactId>junit</artifactId>