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From prabhjyotsi...@apache.org
Subject [5/6] zeppelin git commit: [ZEPPELIN-3127] Upgrade selenium version
Date Thu, 11 Jan 2018 03:41:45 GMT
http://git-wip-us.apache.org/repos/asf/zeppelin/blob/7bff131a/zeppelin-integration/src/test/java/org/apache/zeppelin/integration/InterpreterModeActionsIT.java
----------------------------------------------------------------------
diff --git a/zeppelin-integration/src/test/java/org/apache/zeppelin/integration/InterpreterModeActionsIT.java b/zeppelin-integration/src/test/java/org/apache/zeppelin/integration/InterpreterModeActionsIT.java
new file mode 100644
index 0000000..1f18a65
--- /dev/null
+++ b/zeppelin-integration/src/test/java/org/apache/zeppelin/integration/InterpreterModeActionsIT.java
@@ -0,0 +1,877 @@
+/*
+ * 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.zeppelin.integration;
+
+import org.apache.commons.lang.StringUtils;
+import org.apache.zeppelin.CommandExecutor;
+import org.apache.zeppelin.ProcessData;
+import org.apache.zeppelin.AbstractZeppelinIT;
+import org.apache.zeppelin.WebDriverManager;
+import org.apache.zeppelin.ZeppelinITUtils;
+import org.apache.zeppelin.conf.ZeppelinConfiguration;
+import org.hamcrest.CoreMatchers;
+import org.junit.AfterClass;
+import org.junit.BeforeClass;
+import org.junit.Rule;
+import org.junit.Test;
+import org.junit.rules.ErrorCollector;
+import org.openqa.selenium.By;
+import org.openqa.selenium.WebElement;
+import org.openqa.selenium.support.ui.WebDriverWait;
+import org.openqa.selenium.JavascriptExecutor;
+import org.openqa.selenium.support.ui.ExpectedConditions;
+import org.openqa.selenium.TimeoutException;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import org.apache.commons.io.FileUtils;
+import java.io.File;
+import java.io.IOException;
+import java.net.URI;
+import java.net.URISyntaxException;
+import java.util.List;
+
+import static org.junit.Assert.assertTrue;
+
+public class InterpreterModeActionsIT extends AbstractZeppelinIT {
+  private static final Logger LOG = LoggerFactory.getLogger(InterpreterModeActionsIT.class);
+
+  @Rule
+  public ErrorCollector collector = new ErrorCollector();
+  static String shiroPath;
+  static String authShiro = "[users]\n" +
+      "admin = password1, admin\n" +
+      "user1 = password2, admin\n" +
+      "user2 = password3, admin\n" +
+      "[main]\n" +
+      "sessionManager = org.apache.shiro.web.session.mgt.DefaultWebSessionManager\n" +
+      "securityManager.sessionManager = $sessionManager\n" +
+      "securityManager.sessionManager.globalSessionTimeout = 86400000\n" +
+      "shiro.loginUrl = /api/login\n" +
+      "[roles]\n" +
+      "admin = *\n" +
+      "[urls]\n" +
+      "/api/version = anon\n" +
+      "/** = authc";
+
+  static String originalShiro = "";
+  static String interpreterOptionPath = "";
+  static String originalInterpreterOption = "";
+
+  static String cmdPsPython = "ps aux | grep 'zeppelin_ipython' | grep -v 'grep' | wc -l";
+  static String cmdPsInterpreter = "ps aux | grep 'zeppelin/interpreter/python/*' |" +
+      " sed -E '/grep|local-repo/d' | wc -l";
+
+  @BeforeClass
+  public static void startUp() {
+    try {
+      System.setProperty(ZeppelinConfiguration.ConfVars.ZEPPELIN_HOME.getVarName(), new File("../").getAbsolutePath());
+      ZeppelinConfiguration conf = ZeppelinConfiguration.create();
+      shiroPath = conf.getRelativeDir(String.format("%s/shiro.ini", conf.getConfDir()));
+      interpreterOptionPath = conf.getRelativeDir(String.format("%s/interpreter.json", conf.getConfDir()));
+      File shiroFile = new File(shiroPath);
+      if (shiroFile.exists()) {
+        originalShiro = StringUtils.join(FileUtils.readLines(shiroFile, "UTF-8"), "\n");
+      }
+      FileUtils.write(shiroFile, authShiro, "UTF-8");
+
+      File interpreterOptionFile = new File(interpreterOptionPath);
+      if (interpreterOptionFile.exists()) {
+        originalInterpreterOption = StringUtils.join(FileUtils.readLines(interpreterOptionFile, "UTF-8"), "\n");
+      }
+    } catch (IOException e) {
+      LOG.error("Error in InterpreterModeActionsIT startUp::", e);
+    }
+    ZeppelinITUtils.restartZeppelin();
+    driver = WebDriverManager.getWebDriver();
+  }
+
+  @AfterClass
+  public static void tearDown() {
+    try {
+      if (!StringUtils.isBlank(shiroPath)) {
+        File shiroFile = new File(shiroPath);
+        if (StringUtils.isBlank(originalShiro)) {
+          FileUtils.deleteQuietly(shiroFile);
+        } else {
+          FileUtils.write(shiroFile, originalShiro, "UTF-8");
+        }
+      }
+      if (!StringUtils.isBlank(interpreterOptionPath)) {
+        File interpreterOptionFile = new File(interpreterOptionPath);
+        if (StringUtils.isBlank(originalInterpreterOption)) {
+          FileUtils.deleteQuietly(interpreterOptionFile);
+        } else {
+          FileUtils.write(interpreterOptionFile, originalInterpreterOption, "UTF-8");
+        }
+      }
+    } catch (IOException e) {
+      LOG.error("Error in InterpreterModeActionsIT tearDown::", e);
+    }
+    ZeppelinITUtils.restartZeppelin();
+    driver.quit();
+  }
+
+  private void authenticationUser(String userName, String password) {
+    pollingWait(By.xpath(
+        "//div[contains(@class, 'navbar-collapse')]//li//button[contains(.,'Login')]"),
+        MAX_BROWSER_TIMEOUT_SEC).click();
+    ZeppelinITUtils.sleep(500, false);
+    pollingWait(By.xpath("//*[@id='userName']"), MAX_BROWSER_TIMEOUT_SEC).sendKeys(userName);
+    pollingWait(By.xpath("//*[@id='password']"), MAX_BROWSER_TIMEOUT_SEC).sendKeys(password);
+    pollingWait(By.xpath("//*[@id='loginModalContent']//button[contains(.,'Login')]"),
+        MAX_BROWSER_TIMEOUT_SEC).click();
+    ZeppelinITUtils.sleep(1000, false);
+  }
+
+  private void logoutUser(String userName) throws URISyntaxException {
+    ZeppelinITUtils.sleep(500, false);
+    driver.findElement(By.xpath("//div[contains(@class, 'navbar-collapse')]//li[contains(.,'" +
+        userName + "')]")).click();
+    ZeppelinITUtils.sleep(500, false);
+    driver.findElement(By.xpath("//div[contains(@class, 'navbar-collapse')]//li[contains(.,'" +
+        userName + "')]//a[@ng-click='navbar.logout()']")).click();
+    ZeppelinITUtils.sleep(2000, false);
+    if (driver.findElement(By.xpath("//*[@id='loginModal']//div[contains(@class, 'modal-header')]/button"))
+        .isDisplayed()) {
+      driver.findElement(By.xpath("//*[@id='loginModal']//div[contains(@class, 'modal-header')]/button")).click();
+    }
+    driver.get(new URI(driver.getCurrentUrl()).resolve("/#/").toString());
+    ZeppelinITUtils.sleep(500, false);
+  }
+
+  private void setPythonParagraph(int num, String text) {
+    setTextOfParagraph(num, "%python\\n " + text);
+    runParagraph(num);
+    try {
+      waitForParagraph(num, "FINISHED");
+    } catch (TimeoutException e) {
+      waitForParagraph(num, "ERROR");
+      collector.checkThat("Exception in InterpreterModeActionsIT while setPythonParagraph",
+          "ERROR", CoreMatchers.equalTo("FINISHED"));
+    }
+  }
+
+  @Test
+  public void testGloballyAction() throws Exception {
+    try {
+      //step 1: (admin) login, set 'globally in shared' mode of python interpreter, logout
+      InterpreterModeActionsIT interpreterModeActionsIT = new InterpreterModeActionsIT();
+      interpreterModeActionsIT.authenticationUser("admin", "password1");
+      pollingWait(By.xpath("//div/button[contains(@class, 'nav-btn dropdown-toggle ng-scope')]"),
+          MAX_BROWSER_TIMEOUT_SEC).click();
+      clickAndWait(By.xpath("//li/a[contains(@href, '#/interpreter')]"));
+      pollingWait(By.xpath("//input[contains(@ng-model, 'searchInterpreter')]"),
+          MAX_BROWSER_TIMEOUT_SEC).sendKeys("python");
+      ZeppelinITUtils.sleep(500, false);
+      clickAndWait(By.xpath("//div[contains(@id, 'python')]//button[contains(@ng-click, 'valueform.$show();\n" +
+          "                  copyOriginInterpreterSettingProperties(setting.id)')]"));
+      clickAndWait(By.xpath("//div[contains(@id, 'python')]/div[2]/div/div/div[1]/span[1]/button"));
+      clickAndWait(By.xpath("//div[contains(@id, 'python')]//li/a[contains(.,'Globally')]"));
+      JavascriptExecutor jse = (JavascriptExecutor)driver;
+      jse.executeScript("window.scrollBy(0,250)", "");
+      ZeppelinITUtils.sleep(500, false);
+      clickAndWait(By.xpath("//div[contains(@id, 'python')]//div/form/button[contains(@type, 'submit')]"));
+      clickAndWait(By.xpath(
+          "//div[@class='modal-dialog']//div[@class='bootstrap-dialog-footer-buttons']//button[contains(., 'OK')]"));
+      clickAndWait(By.xpath("//a[@class='navbar-brand navbar-title'][contains(@href, '#/')]"));
+      interpreterModeActionsIT.logoutUser("admin");
+      //step 2: (user1) login, create a new note, run two paragraph with 'python', check result, check process, logout
+      //paragraph: Check if the result is 'user1' in the second paragraph
+      //System: Check if the number of python interpreter process is '1'
+      //System: Check if the number of python process is '1'
+      interpreterModeActionsIT.authenticationUser("user1", "password2");
+      By locator = By.xpath("//div[contains(@class, 'col-md-4')]/div/h5/a[contains(.,'Create new" +
+          " note')]");
+      WebElement element = (new WebDriverWait(driver, MAX_BROWSER_TIMEOUT_SEC))
+          .until(ExpectedConditions.visibilityOfElementLocated(locator));
+      if (element.isDisplayed()) {
+        createNewNote();
+      }
+      String user1noteId = driver.getCurrentUrl().substring(driver.getCurrentUrl().lastIndexOf("/") + 1);
+      waitForParagraph(1, "READY");
+      interpreterModeActionsIT.setPythonParagraph(1, "user=\"user1\"");
+      waitForParagraph(2, "READY");
+      interpreterModeActionsIT.setPythonParagraph(2, "print user");
+      collector.checkThat("The output field paragraph contains",
+          driver.findElement(By.xpath(
+              getParagraphXPath(2) + "//div[contains(@class, 'text plainTextContent')]")).getText(),
+          CoreMatchers.equalTo("user1"));
+      String resultProcessNum = (String) CommandExecutor.executeCommandLocalHost(cmdPsPython,
+          false, ProcessData.Types_Of_Data.OUTPUT);
+      resultProcessNum = resultProcessNum.trim().replaceAll("\n", "");
+      collector.checkThat("The number of python process is", resultProcessNum, CoreMatchers.equalTo("1"));
+      resultProcessNum = (String) CommandExecutor.executeCommandLocalHost(cmdPsInterpreter,
+          false, ProcessData.Types_Of_Data.OUTPUT);
+      resultProcessNum = resultProcessNum.trim().replaceAll("\n", "");
+      collector.checkThat("The number of python interpreter process is", resultProcessNum, CoreMatchers.equalTo("1"));
+
+      interpreterModeActionsIT.logoutUser("user1");
+
+      //step 3: (user2) login, create a new note, run two paragraph with 'python', check result, check process, logout
+      //paragraph: Check if the result is 'user2' in the second paragraph
+      //System: Check if the number of python interpreter process is '1'
+      //System: Check if the number of python process is '1'
+      interpreterModeActionsIT.authenticationUser("user2", "password3");
+      locator = By.xpath("//div[contains(@class, 'col-md-4')]/div/h5/a[contains(.,'Create new" +
+          " note')]");
+      element = (new WebDriverWait(driver, MAX_BROWSER_TIMEOUT_SEC))
+          .until(ExpectedConditions.visibilityOfElementLocated(locator));
+      if (element.isDisplayed()) {
+        createNewNote();
+      }
+      waitForParagraph(1, "READY");
+      interpreterModeActionsIT.setPythonParagraph(1, "user=\"user2\"");
+      waitForParagraph(2, "READY");
+      interpreterModeActionsIT.setPythonParagraph(2, "print user");
+      collector.checkThat("The output field paragraph contains",
+          driver.findElement(By.xpath(
+              getParagraphXPath(2) + "//div[contains(@class, 'text plainTextContent')]")).getText(),
+          CoreMatchers.equalTo("user2"));
+      resultProcessNum = (String) CommandExecutor.executeCommandLocalHost(cmdPsPython,
+          false, ProcessData.Types_Of_Data.OUTPUT);
+      resultProcessNum = resultProcessNum.trim().replaceAll("\n", "");
+      collector.checkThat("The number of python process is", resultProcessNum, CoreMatchers.equalTo("1"));
+      resultProcessNum = (String) CommandExecutor.executeCommandLocalHost(cmdPsInterpreter,
+          false, ProcessData.Types_Of_Data.OUTPUT);
+      resultProcessNum = resultProcessNum.trim().replaceAll("\n", "");
+      collector.checkThat("The number of python interpreter process is", resultProcessNum, CoreMatchers.equalTo("1"));
+      interpreterModeActionsIT.logoutUser("user2");
+
+      //step 4: (user1) login, come back note user1 made, run second paragraph, check result, check process,
+      //restart python interpreter, check process again, logout
+      //paragraph: Check if the result is 'user2' in the second paragraph
+      //System: Check if the number of python interpreter process is '1'
+      //System: Check if the number of python process is '1'
+      interpreterModeActionsIT.authenticationUser("user1", "password2");
+      locator = By.xpath("//*[@id='notebook-names']//a[contains(@href, '" + user1noteId + "')]");
+      element = (new WebDriverWait(driver, MAX_BROWSER_TIMEOUT_SEC))
+          .until(ExpectedConditions.visibilityOfElementLocated(locator));
+      if (element.isDisplayed()) {
+        pollingWait(By.xpath("//*[@id='notebook-names']//a[contains(@href, '" + user1noteId + "')]"),
+            MAX_BROWSER_TIMEOUT_SEC).click();
+      }
+      waitForParagraph(2, "FINISHED");
+      runParagraph(2);
+      try {
+        waitForParagraph(2, "FINISHED");
+      } catch (TimeoutException e) {
+        waitForParagraph(2, "ERROR");
+        collector.checkThat("Exception in InterpreterModeActionsIT while running Python Paragraph",
+            "ERROR", CoreMatchers.equalTo("FINISHED"));
+      }
+      resultProcessNum = (String) CommandExecutor.executeCommandLocalHost(cmdPsPython,
+          false, ProcessData.Types_Of_Data.OUTPUT);
+      resultProcessNum = resultProcessNum.trim().replaceAll("\n", "");
+      collector.checkThat("The number of python process is", resultProcessNum, CoreMatchers.equalTo("1"));
+      resultProcessNum = (String) CommandExecutor.executeCommandLocalHost(cmdPsInterpreter,
+          false, ProcessData.Types_Of_Data.OUTPUT);
+      resultProcessNum = resultProcessNum.trim().replaceAll("\n", "");
+      collector.checkThat("The number of python interpreter process is", resultProcessNum, CoreMatchers.equalTo("1"));
+
+      clickAndWait(By.xpath("//*[@id='actionbar']//span[contains(@uib-tooltip, 'Interpreter binding')]"));
+      clickAndWait(By.xpath("//div[@data-ng-repeat='item in interpreterBindings' and contains(., 'python')]//a"));
+      clickAndWait(By.xpath("//div[@class='modal-dialog']" +
+          "[contains(.,'Do you want to restart python interpreter?')]" +
+          "//div[@class='bootstrap-dialog-footer-buttons']//button[contains(., 'OK')]"));
+      locator = By.xpath("//div[@class='modal-dialog'][contains(.,'Do you want to restart python interpreter?')]");
+      LOG.info("Holding on until if interpreter restart dialog is disappeared or not testGloballyAction");
+      boolean invisibilityStatus = (new WebDriverWait(driver, MAX_BROWSER_TIMEOUT_SEC))
+          .until(ExpectedConditions.invisibilityOfElementLocated(locator));
+      if (invisibilityStatus == false) {
+        assertTrue("interpreter setting dialog visibility status", invisibilityStatus);
+      }
+      locator = By.xpath("//*[@id='actionbar']//span[contains(@uib-tooltip, 'Interpreter binding')]");
+      element = (new WebDriverWait(driver, MAX_BROWSER_TIMEOUT_SEC))
+          .until(ExpectedConditions.visibilityOfElementLocated(locator));
+      if (element.isDisplayed()) {
+        clickAndWait(By.xpath("//*[@id='actionbar']//span[contains(@uib-tooltip, 'Interpreter binding')]"));
+      }
+      resultProcessNum = (String) CommandExecutor.executeCommandLocalHost(cmdPsPython,
+          false, ProcessData.Types_Of_Data.OUTPUT);
+      resultProcessNum = resultProcessNum.trim().replaceAll("\n", "");
+      collector.checkThat("The number of python process is", resultProcessNum, CoreMatchers.equalTo("0"));
+      resultProcessNum = (String) CommandExecutor.executeCommandLocalHost(cmdPsInterpreter,
+          false, ProcessData.Types_Of_Data.OUTPUT);
+      resultProcessNum = resultProcessNum.trim().replaceAll("\n", "");
+      collector.checkThat("The number of python interpreter process is", resultProcessNum, CoreMatchers.equalTo("0"));
+      interpreterModeActionsIT.logoutUser("user1");
+    } catch (Exception e) {
+      handleException("Exception in InterpreterModeActionsIT while testGloballyAction ", e);
+    }
+  }
+
+  @Test
+  public void testPerUserScopedAction() throws Exception {
+    try {
+      //step 1: (admin) login, set 'Per user in scoped' mode of python interpreter, logout
+      InterpreterModeActionsIT interpreterModeActionsIT = new InterpreterModeActionsIT();
+      interpreterModeActionsIT.authenticationUser("admin", "password1");
+      pollingWait(By.xpath("//div/button[contains(@class, 'nav-btn dropdown-toggle ng-scope')]"),
+          MAX_BROWSER_TIMEOUT_SEC).click();
+
+      clickAndWait(By.xpath("//li/a[contains(@href, '#/interpreter')]"));
+      pollingWait(By.xpath("//input[contains(@ng-model, 'searchInterpreter')]"),
+          MAX_BROWSER_TIMEOUT_SEC).sendKeys("python");
+      ZeppelinITUtils.sleep(500, false);
+
+      clickAndWait(By.xpath("//div[contains(@id, 'python')]//button[contains(@ng-click, 'valueform.$show();\n" +
+          "                  copyOriginInterpreterSettingProperties(setting.id)')]"));
+      clickAndWait(By.xpath("//div[contains(@id, 'python')]/div[2]/div/div/div[1]/span[1]/button"));
+      clickAndWait(By.xpath("//div[contains(@id, 'python')]//li/a[contains(.,'Per User')]"));
+      clickAndWait(By.xpath("//div[contains(@id, 'python')]/div[2]/div/div/div[1]/span[2]/button"));
+      clickAndWait(By.xpath("//div[contains(@id, 'python')]//li/a[contains(.,'scoped per user')]"));
+
+      JavascriptExecutor jse = (JavascriptExecutor)driver;
+      jse.executeScript("window.scrollBy(0,250)", "");
+      ZeppelinITUtils.sleep(500, false);
+      clickAndWait(By.xpath("//div[contains(@id, 'python')]//div/form/button[contains(@type, 'submit')]"));
+      clickAndWait(By.xpath(
+          "//div[@class='modal-dialog']//div[@class='bootstrap-dialog-footer-buttons']//button[contains(., 'OK')]"));
+      clickAndWait(By.xpath("//a[@class='navbar-brand navbar-title'][contains(@href, '#/')]"));
+
+      interpreterModeActionsIT.logoutUser("admin");
+
+      //step 2: (user1) login, create a new note, run two paragraph with 'python', check result, check process, logout
+      //paragraph: Check if the result is 'user1' in the second paragraph
+      //System: Check if the number of python interpreter process is '1'
+      //System: Check if the number of python process is '1'
+      interpreterModeActionsIT.authenticationUser("user1", "password2");
+      By locator = By.xpath("//div[contains(@class, 'col-md-4')]/div/h5/a[contains(.,'Create new" +
+          " note')]");
+      WebElement element = (new WebDriverWait(driver, MAX_BROWSER_TIMEOUT_SEC))
+          .until(ExpectedConditions.visibilityOfElementLocated(locator));
+      if (element.isDisplayed()) {
+        createNewNote();
+      }
+      String user1noteId = driver.getCurrentUrl().substring(driver.getCurrentUrl().lastIndexOf("/") + 1);
+
+      waitForParagraph(1, "READY");
+      interpreterModeActionsIT.setPythonParagraph(1, "user=\"user1\"");
+      waitForParagraph(2, "READY");
+      interpreterModeActionsIT.setPythonParagraph(2, "print user");
+
+      collector.checkThat("The output field paragraph contains",
+          driver.findElement(By.xpath(
+              getParagraphXPath(2) + "//div[contains(@class, 'text plainTextContent')]")).getText(),
+          CoreMatchers.equalTo("user1"));
+
+      String resultProcessNum = (String) CommandExecutor.executeCommandLocalHost(cmdPsPython,
+          false, ProcessData.Types_Of_Data.OUTPUT);
+      resultProcessNum = resultProcessNum.trim().replaceAll("\n", "");
+      collector.checkThat("The number of python process is", resultProcessNum, CoreMatchers.equalTo("1"));
+      resultProcessNum = (String) CommandExecutor.executeCommandLocalHost(cmdPsInterpreter,
+          false, ProcessData.Types_Of_Data.OUTPUT);
+      resultProcessNum = resultProcessNum.trim().replaceAll("\n", "");
+      collector.checkThat("The number of python interpreter process is", resultProcessNum, CoreMatchers.equalTo("1"));
+      interpreterModeActionsIT.logoutUser("user1");
+
+      //step 3: (user2) login, create a new note, run two paragraph with 'python', check result, check process, logout
+      //                paragraph: Check if the result is 'user2' in the second paragraph
+      //System: Check if the number of python interpreter process is '1'
+      //System: Check if the number of python process is '2'
+      interpreterModeActionsIT.authenticationUser("user2", "password3");
+      locator = By.xpath("//div[contains(@class, 'col-md-4')]/div/h5/a[contains(.,'Create new" +
+          " note')]");
+      element = (new WebDriverWait(driver, MAX_BROWSER_TIMEOUT_SEC))
+          .until(ExpectedConditions.visibilityOfElementLocated(locator));
+      if (element.isDisplayed()) {
+        createNewNote();
+      }
+      String user2noteId = driver.getCurrentUrl().substring(driver.getCurrentUrl().lastIndexOf("/") + 1);
+      waitForParagraph(1, "READY");
+      interpreterModeActionsIT.setPythonParagraph(1, "user=\"user2\"");
+      waitForParagraph(2, "READY");
+      interpreterModeActionsIT.setPythonParagraph(2, "print user");
+      collector.checkThat("The output field paragraph contains",
+          driver.findElement(By.xpath(
+              getParagraphXPath(2) + "//div[contains(@class, 'text plainTextContent')]")).getText(),
+          CoreMatchers.equalTo("user2"));
+
+      resultProcessNum = (String) CommandExecutor.executeCommandLocalHost(cmdPsPython,
+          false, ProcessData.Types_Of_Data.OUTPUT);
+      resultProcessNum = resultProcessNum.trim().replaceAll("\n", "");
+      collector.checkThat("The number of python process is", resultProcessNum, CoreMatchers.equalTo("2"));
+      resultProcessNum = (String) CommandExecutor.executeCommandLocalHost(cmdPsInterpreter,
+          false, ProcessData.Types_Of_Data.OUTPUT);
+      resultProcessNum = resultProcessNum.trim().replaceAll("\n", "");
+      collector.checkThat("The number of python interpreter process is", resultProcessNum, CoreMatchers.equalTo("1"));
+      interpreterModeActionsIT.logoutUser("user2");
+
+      //step 4: (user1) login, come back note user1 made, run second paragraph, check result,
+      //                restart python interpreter in note, check process again, logout
+      //paragraph: Check if the result is 'user1' in the second paragraph
+      //System: Check if the number of python interpreter process is '1'
+      //System: Check if the number of python process is '1'
+      interpreterModeActionsIT.authenticationUser("user1", "password2");
+      locator = By.xpath("//*[@id='notebook-names']//a[contains(@href, '" + user1noteId + "')]");
+      element = (new WebDriverWait(driver, MAX_BROWSER_TIMEOUT_SEC))
+          .until(ExpectedConditions.visibilityOfElementLocated(locator));
+      if (element.isDisplayed()) {
+        pollingWait(By.xpath("//*[@id='notebook-names']//a[contains(@href, '" + user1noteId + "')]"),
+            MAX_BROWSER_TIMEOUT_SEC).click();
+      }
+      runParagraph(2);
+      try {
+        waitForParagraph(2, "FINISHED");
+      } catch (TimeoutException e) {
+        waitForParagraph(2, "ERROR");
+        collector.checkThat("Exception in InterpreterModeActionsIT while running Python Paragraph",
+            "ERROR", CoreMatchers.equalTo("FINISHED"));
+      }
+      collector.checkThat("The output field paragraph contains",
+          driver.findElement(By.xpath(
+              getParagraphXPath(2) + "//div[contains(@class, 'text plainTextContent')]")).getText(),
+          CoreMatchers.equalTo("user1"));
+
+      clickAndWait(By.xpath("//*[@id='actionbar']//span[contains(@uib-tooltip, 'Interpreter binding')]"));
+      clickAndWait(By.xpath("//div[@data-ng-repeat='item in interpreterBindings' and contains(., 'python')]//a"));
+      clickAndWait(By.xpath("//div[@class='modal-dialog']" +
+          "[contains(.,'Do you want to restart python interpreter?')]" +
+          "//div[@class='bootstrap-dialog-footer-buttons']//button[contains(., 'OK')]"));
+      locator = By.xpath("//div[@class='modal-dialog'][contains(.,'Do you want to restart python interpreter?')]");
+      LOG.info("Holding on until if interpreter restart dialog is disappeared or not in testPerUserScopedAction");
+      boolean invisibilityStatus = (new WebDriverWait(driver, MAX_BROWSER_TIMEOUT_SEC))
+          .until(ExpectedConditions.invisibilityOfElementLocated(locator));
+      if (invisibilityStatus == false) {
+        assertTrue("interpreter setting dialog visibility status", invisibilityStatus);
+      }
+      locator = By.xpath("//*[@id='actionbar']//span[contains(@uib-tooltip, 'Interpreter binding')]");
+      element = (new WebDriverWait(driver, MAX_BROWSER_TIMEOUT_SEC))
+          .until(ExpectedConditions.visibilityOfElementLocated(locator));
+      if (element.isDisplayed()) {
+        clickAndWait(By.xpath("//*[@id='actionbar']//span[contains(@uib-tooltip, 'Interpreter binding')]"));
+      }
+
+      resultProcessNum = (String) CommandExecutor.executeCommandLocalHost(cmdPsPython,
+          false, ProcessData.Types_Of_Data.OUTPUT);
+      resultProcessNum = resultProcessNum.trim().replaceAll("\n", "");
+      collector.checkThat("The number of python process is", resultProcessNum, CoreMatchers.equalTo("1"));
+      resultProcessNum = (String) CommandExecutor.executeCommandLocalHost(cmdPsInterpreter,
+          false, ProcessData.Types_Of_Data.OUTPUT);
+      resultProcessNum = resultProcessNum.trim().replaceAll("\n", "");
+      collector.checkThat("The number of python interpreter process is", resultProcessNum, CoreMatchers.equalTo("1"));
+      interpreterModeActionsIT.logoutUser("user1");
+
+      //step 5: (user2) login, come back note user2 made, restart python interpreter in note, check process, logout
+      //System: Check if the number of python interpreter process is '0'
+      //System: Check if the number of python process is '0'
+      interpreterModeActionsIT.authenticationUser("user2", "password3");
+      locator = By.xpath("//*[@id='notebook-names']//a[contains(@href, '" + user2noteId + "')]");
+      element = (new WebDriverWait(driver, MAX_BROWSER_TIMEOUT_SEC))
+          .until(ExpectedConditions.visibilityOfElementLocated(locator));
+      if (element.isDisplayed()) {
+        pollingWait(By.xpath("//*[@id='notebook-names']//a[contains(@href, '" + user2noteId + "')]"),
+            MAX_BROWSER_TIMEOUT_SEC).click();
+      }
+      clickAndWait(By.xpath("//*[@id='actionbar']//span[contains(@uib-tooltip, 'Interpreter binding')]"));
+      clickAndWait(By.xpath("//div[@data-ng-repeat='item in interpreterBindings' and contains(., 'python')]//a"));
+      clickAndWait(By.xpath("//div[@class='modal-dialog']" +
+          "[contains(.,'Do you want to restart python interpreter?')]" +
+          "//div[@class='bootstrap-dialog-footer-buttons']//button[contains(., 'OK')]"));
+      locator = By.xpath("//div[@class='modal-dialog'][contains(.,'Do you want to restart python interpreter?')]");
+      LOG.info("Holding on until if interpreter restart dialog is disappeared or not in testPerUserScopedAction");
+      invisibilityStatus = (new WebDriverWait(driver, MAX_BROWSER_TIMEOUT_SEC))
+          .until(ExpectedConditions.invisibilityOfElementLocated(locator));
+      if (invisibilityStatus == false) {
+        assertTrue("interpreter setting dialog visibility status", invisibilityStatus);
+      }
+      locator = By.xpath("//*[@id='actionbar']//span[contains(@uib-tooltip, 'Interpreter binding')]");
+      element = (new WebDriverWait(driver, MAX_BROWSER_TIMEOUT_SEC))
+          .until(ExpectedConditions.visibilityOfElementLocated(locator));
+      if (element.isDisplayed()) {
+        clickAndWait(By.xpath("//*[@id='actionbar']//span[contains(@uib-tooltip, 'Interpreter binding')]"));
+      }
+
+      resultProcessNum = (String) CommandExecutor.executeCommandLocalHost(cmdPsPython,
+          false, ProcessData.Types_Of_Data.OUTPUT);
+      resultProcessNum = resultProcessNum.trim().replaceAll("\n", "");
+      collector.checkThat("The number of python process is", resultProcessNum, CoreMatchers.equalTo("0"));
+      resultProcessNum = (String) CommandExecutor.executeCommandLocalHost(cmdPsInterpreter,
+          false, ProcessData.Types_Of_Data.OUTPUT);
+      resultProcessNum = resultProcessNum.trim().replaceAll("\n", "");
+      collector.checkThat("The number of python interpreter process is", resultProcessNum, CoreMatchers.equalTo("0"));
+      interpreterModeActionsIT.logoutUser("user2");
+
+      //step 6: (user1) login, come back note user1 made, run first paragraph,logout
+      //        (user2) login, come back note user2 made, run first paragraph, check process, logout
+      //System: Check if the number of python process is '2'
+      //System: Check if the number of python interpreter process is '1'
+      interpreterModeActionsIT.authenticationUser("user1", "password2");
+      locator = By.xpath("//*[@id='notebook-names']//a[contains(@href, '" + user1noteId + "')]");
+      element = (new WebDriverWait(driver, MAX_BROWSER_TIMEOUT_SEC))
+          .until(ExpectedConditions.visibilityOfElementLocated(locator));
+      if (element.isDisplayed()) {
+        pollingWait(By.xpath("//*[@id='notebook-names']//a[contains(@href, '" + user1noteId + "')]"),
+            MAX_BROWSER_TIMEOUT_SEC).click();
+      }
+      waitForParagraph(1, "FINISHED");
+      runParagraph(1);
+      try {
+        waitForParagraph(1, "FINISHED");
+      } catch (TimeoutException e) {
+        waitForParagraph(1, "ERROR");
+        collector.checkThat("Exception in InterpreterModeActionsIT while running Python Paragraph",
+            "ERROR", CoreMatchers.equalTo("FINISHED"));
+      }
+      interpreterModeActionsIT.logoutUser("user1");
+
+      interpreterModeActionsIT.authenticationUser("user2", "password3");
+      locator = By.xpath("//*[@id='notebook-names']//a[contains(@href, '" + user2noteId + "')]");
+      element = (new WebDriverWait(driver, MAX_BROWSER_TIMEOUT_SEC))
+          .until(ExpectedConditions.visibilityOfElementLocated(locator));
+      if (element.isDisplayed()) {
+        pollingWait(By.xpath("//*[@id='notebook-names']//a[contains(@href, '" + user2noteId + "')]"),
+            MAX_BROWSER_TIMEOUT_SEC).click();
+      }
+      runParagraph(1);
+      try {
+        waitForParagraph(1, "FINISHED");
+      } catch (TimeoutException e) {
+        waitForParagraph(1, "ERROR");
+        collector.checkThat("Exception in InterpreterModeActionsIT while running Python Paragraph",
+            "ERROR", CoreMatchers.equalTo("FINISHED"));
+      }
+      resultProcessNum = (String) CommandExecutor.executeCommandLocalHost(cmdPsPython,
+          false, ProcessData.Types_Of_Data.OUTPUT);
+      resultProcessNum = resultProcessNum.trim().replaceAll("\n", "");
+      collector.checkThat("The number of python process is", resultProcessNum, CoreMatchers.equalTo("2"));
+      resultProcessNum = (String) CommandExecutor.executeCommandLocalHost(cmdPsInterpreter,
+          false, ProcessData.Types_Of_Data.OUTPUT);
+      resultProcessNum = resultProcessNum.trim().replaceAll("\n", "");
+      collector.checkThat("The number of python interpreter process is", resultProcessNum, CoreMatchers.equalTo("1"));
+      interpreterModeActionsIT.logoutUser("user2");
+
+      //step 7: (admin) login, restart python interpreter in interpreter tab, check process, logout
+      //System: Check if the number of python interpreter process is 0
+      //System: Check if the number of python process is 0
+      interpreterModeActionsIT.authenticationUser("admin", "password1");
+      pollingWait(By.xpath("//div/button[contains(@class, 'nav-btn dropdown-toggle ng-scope')]"),
+          MAX_BROWSER_TIMEOUT_SEC).click();
+
+      clickAndWait(By.xpath("//li/a[contains(@href, '#/interpreter')]"));
+      pollingWait(By.xpath("//input[contains(@ng-model, 'searchInterpreter')]"),
+          MAX_BROWSER_TIMEOUT_SEC).sendKeys("python");
+      ZeppelinITUtils.sleep(500, false);
+
+      clickAndWait(By.xpath("//div[contains(@id, 'python')]" +
+          "//button[contains(@ng-click, 'restartInterpreterSetting(setting.id)')]"));
+      clickAndWait(By.xpath("//div[@class='modal-dialog']" +
+          "[contains(.,'Do you want to restart this interpreter?')]" +
+          "//div[@class='bootstrap-dialog-footer-buttons']//button[contains(., 'OK')]"));
+      locator = By.xpath("//div[@class='modal-dialog'][contains(.,'Do you want to restart python interpreter?')]");
+      LOG.info("Holding on until if interpreter restart dialog is disappeared or not in testPerUserScopedAction");
+      invisibilityStatus = (new WebDriverWait(driver, MAX_BROWSER_TIMEOUT_SEC))
+          .until(ExpectedConditions.invisibilityOfElementLocated(locator));
+      if (invisibilityStatus == false) {
+        assertTrue("interpreter setting dialog visibility status", invisibilityStatus);
+      }
+
+      resultProcessNum = (String) CommandExecutor.executeCommandLocalHost(cmdPsPython,
+          false, ProcessData.Types_Of_Data.OUTPUT);
+      resultProcessNum = resultProcessNum.trim().replaceAll("\n", "");
+      collector.checkThat("The number of python process is", resultProcessNum, CoreMatchers.equalTo("0"));
+      resultProcessNum = (String) CommandExecutor.executeCommandLocalHost(cmdPsInterpreter,
+          false, ProcessData.Types_Of_Data.OUTPUT);
+      resultProcessNum = resultProcessNum.trim().replaceAll("\n", "");
+      collector.checkThat("The number of python interpreter process is", resultProcessNum, CoreMatchers.equalTo("0"));
+
+      interpreterModeActionsIT.logoutUser("admin");
+
+    } catch (Exception e) {
+      handleException("Exception in InterpreterModeActionsIT while testPerUserScopedAction ", e);
+    }
+  }
+
+  @Test
+  public void testPerUserIsolatedAction() throws Exception {
+    try {
+      //step 1: (admin) login, set 'Per user in isolated' mode of python interpreter, logout
+      InterpreterModeActionsIT interpreterModeActionsIT = new InterpreterModeActionsIT();
+      interpreterModeActionsIT.authenticationUser("admin", "password1");
+      pollingWait(By.xpath("//div/button[contains(@class, 'nav-btn dropdown-toggle ng-scope')]"),
+          MAX_BROWSER_TIMEOUT_SEC).click();
+      clickAndWait(By.xpath("//li/a[contains(@href, '#/interpreter')]"));
+      pollingWait(By.xpath("//input[contains(@ng-model, 'searchInterpreter')]"),
+          MAX_BROWSER_TIMEOUT_SEC).sendKeys("python");
+      ZeppelinITUtils.sleep(500, false);
+      clickAndWait(By.xpath("//div[contains(@id, 'python')]//button[contains(@ng-click, 'valueform.$show();\n" +
+          "                  copyOriginInterpreterSettingProperties(setting.id)')]"));
+      clickAndWait(By.xpath("//div[contains(@id, 'python')]/div[2]/div/div/div[1]/span[1]/button"));
+      clickAndWait(By.xpath("//div[contains(@id, 'python')]//li/a[contains(.,'Per User')]"));
+      clickAndWait(By.xpath("//div[contains(@id, 'python')]/div[2]/div/div/div[1]/span[2]/button"));
+      clickAndWait(By.xpath("//div[contains(@id, 'python')]//li/a[contains(.,'isolated per user')]"));
+      JavascriptExecutor jse = (JavascriptExecutor)driver;
+      jse.executeScript("window.scrollBy(0,250)", "");
+      ZeppelinITUtils.sleep(500, false);
+      clickAndWait(By.xpath("//div[contains(@id, 'python')]//div/form/button[contains(@type, 'submit')]"));
+      clickAndWait(By.xpath(
+          "//div[@class='modal-dialog']//div[@class='bootstrap-dialog-footer-buttons']//button[contains(., 'OK')]"));
+      clickAndWait(By.xpath("//a[@class='navbar-brand navbar-title'][contains(@href, '#/')]"));
+      interpreterModeActionsIT.logoutUser("admin");
+
+      //step 2: (user1) login, create a new note, run two paragraph with 'python', check result, check process, logout
+      //paragraph: Check if the result is 'user1' in the second paragraph
+      //System: Check if the number of python interpreter process is '1'
+      //System: Check if the number of python process is '1'
+      interpreterModeActionsIT.authenticationUser("user1", "password2");
+      By locator = By.xpath("//div[contains(@class, 'col-md-4')]/div/h5/a[contains(.,'Create new" +
+          " note')]");
+      WebElement element = (new WebDriverWait(driver, MAX_BROWSER_TIMEOUT_SEC))
+          .until(ExpectedConditions.visibilityOfElementLocated(locator));
+      if (element.isDisplayed()) {
+        createNewNote();
+      }
+      String user1noteId = driver.getCurrentUrl().substring(driver.getCurrentUrl().lastIndexOf("/") + 1);
+      waitForParagraph(1, "READY");
+      interpreterModeActionsIT.setPythonParagraph(1, "user=\"user1\"");
+      waitForParagraph(2, "READY");
+      interpreterModeActionsIT.setPythonParagraph(2, "print user");
+
+      collector.checkThat("The output field paragraph contains",
+          driver.findElement(By.xpath(
+              getParagraphXPath(2) + "//div[contains(@class, 'text plainTextContent')]")).getText(),
+          CoreMatchers.equalTo("user1"));
+
+      String resultProcessNum = (String) CommandExecutor.executeCommandLocalHost(cmdPsPython,
+          false, ProcessData.Types_Of_Data.OUTPUT);
+      resultProcessNum = resultProcessNum.trim().replaceAll("\n", "");
+      collector.checkThat("The number of python process is", resultProcessNum, CoreMatchers.equalTo("1"));
+      resultProcessNum = (String) CommandExecutor.executeCommandLocalHost(cmdPsInterpreter,
+          false, ProcessData.Types_Of_Data.OUTPUT);
+      resultProcessNum = resultProcessNum.trim().replaceAll("\n", "");
+      collector.checkThat("The number of python interpreter process is", resultProcessNum, CoreMatchers.equalTo("1"));
+      interpreterModeActionsIT.logoutUser("user1");
+
+      //step 3: (user2) login, create a new note, run two paragraph with 'python', check result, check process, logout
+      //                paragraph: Check if the result is 'user2' in the second paragraph
+      //System: Check if the number of python interpreter process is '2'
+      //System: Check if the number of python process is '2'
+      interpreterModeActionsIT.authenticationUser("user2", "password3");
+      locator = By.xpath("//div[contains(@class, 'col-md-4')]/div/h5/a[contains(.,'Create new" +
+          " note')]");
+      element = (new WebDriverWait(driver, MAX_BROWSER_TIMEOUT_SEC))
+          .until(ExpectedConditions.visibilityOfElementLocated(locator));
+      if (element.isDisplayed()) {
+        createNewNote();
+      }
+      String user2noteId = driver.getCurrentUrl().substring(driver.getCurrentUrl().lastIndexOf("/") + 1);
+      waitForParagraph(1, "READY");
+      interpreterModeActionsIT.setPythonParagraph(1, "user=\"user2\"");
+      waitForParagraph(2, "READY");
+      interpreterModeActionsIT.setPythonParagraph(2, "print user");
+
+      collector.checkThat("The output field paragraph contains",
+          driver.findElement(By.xpath(
+              getParagraphXPath(2) + "//div[contains(@class, 'text plainTextContent')]")).getText(),
+          CoreMatchers.equalTo("user2"));
+
+      resultProcessNum = (String) CommandExecutor.executeCommandLocalHost(cmdPsPython,
+          false, ProcessData.Types_Of_Data.OUTPUT);
+      resultProcessNum = resultProcessNum.trim().replaceAll("\n", "");
+      collector.checkThat("The number of python process is", resultProcessNum, CoreMatchers.equalTo("2"));
+      resultProcessNum = (String) CommandExecutor.executeCommandLocalHost(cmdPsInterpreter,
+          false, ProcessData.Types_Of_Data.OUTPUT);
+      resultProcessNum = resultProcessNum.trim().replaceAll("\n", "");
+      collector.checkThat("The number of python interpreter process is", resultProcessNum, CoreMatchers.equalTo("2"));
+      interpreterModeActionsIT.logoutUser("user2");
+
+      //step 4: (user1) login, come back note user1 made, run second paragraph, check result,
+      //                restart python interpreter in note, check process again, logout
+      //paragraph: Check if the result is 'user1' in the second paragraph
+      //System: Check if the number of python interpreter process is '1'
+      //System: Check if the number of python process is '1'
+      interpreterModeActionsIT.authenticationUser("user1", "password2");
+      locator = By.xpath("//*[@id='notebook-names']//a[contains(@href, '" + user1noteId + "')]");
+      element = (new WebDriverWait(driver, MAX_BROWSER_TIMEOUT_SEC))
+          .until(ExpectedConditions.visibilityOfElementLocated(locator));
+      if (element.isDisplayed()) {
+        pollingWait(By.xpath("//*[@id='notebook-names']//a[contains(@href, '" + user1noteId + "')]"),
+            MAX_BROWSER_TIMEOUT_SEC).click();
+      }
+      runParagraph(2);
+      try {
+        waitForParagraph(2, "FINISHED");
+      } catch (TimeoutException e) {
+        waitForParagraph(2, "ERROR");
+        collector.checkThat("Exception in InterpreterModeActionsIT while running Python Paragraph",
+            "ERROR", CoreMatchers.equalTo("FINISHED"));
+      }
+      collector.checkThat("The output field paragraph contains",
+          driver.findElement(By.xpath(
+              getParagraphXPath(2) + "//div[contains(@class, 'text plainTextContent')]")).getText(),
+          CoreMatchers.equalTo("user1"));
+
+      clickAndWait(By.xpath("//*[@id='actionbar']//span[contains(@uib-tooltip, 'Interpreter binding')]"));
+      clickAndWait(By.xpath("//div[@data-ng-repeat='item in interpreterBindings' and contains(., 'python')]//a"));
+      clickAndWait(By.xpath("//div[@class='modal-dialog']" +
+          "[contains(.,'Do you want to restart python interpreter?')]" +
+          "//div[@class='bootstrap-dialog-footer-buttons']//button[contains(., 'OK')]"));
+
+      locator = By.xpath("//div[@class='modal-dialog'][contains(.,'Do you want to restart python interpreter?')]");
+      LOG.info("Holding on until if interpreter restart dialog is disappeared or not in testPerUserIsolatedAction");
+      boolean invisibilityStatus = (new WebDriverWait(driver, MAX_BROWSER_TIMEOUT_SEC))
+          .until(ExpectedConditions.invisibilityOfElementLocated(locator));
+      if (invisibilityStatus == false) {
+        assertTrue("interpreter setting dialog visibility status", invisibilityStatus);
+      }
+      locator = By.xpath("//*[@id='actionbar']//span[contains(@uib-tooltip, 'Interpreter binding')]");
+      element = (new WebDriverWait(driver, MAX_BROWSER_TIMEOUT_SEC))
+          .until(ExpectedConditions.visibilityOfElementLocated(locator));
+      if (element.isDisplayed()) {
+        clickAndWait(By.xpath("//*[@id='actionbar']//span[contains(@uib-tooltip, 'Interpreter binding')]"));
+      }
+
+      resultProcessNum = (String) CommandExecutor.executeCommandLocalHost(cmdPsPython,
+          false, ProcessData.Types_Of_Data.OUTPUT);
+      resultProcessNum = resultProcessNum.trim().replaceAll("\n", "");
+      collector.checkThat("The number of python process is", resultProcessNum, CoreMatchers.equalTo("1"));
+      resultProcessNum = (String) CommandExecutor.executeCommandLocalHost(cmdPsInterpreter,
+          false, ProcessData.Types_Of_Data.OUTPUT);
+      resultProcessNum = resultProcessNum.trim().replaceAll("\n", "");
+      collector.checkThat("The number of python interpreter process is", resultProcessNum, CoreMatchers.equalTo("1"));
+      interpreterModeActionsIT.logoutUser("user1");
+
+      //step 5: (user2) login, come back note user2 made, restart python interpreter in note, check process, logout
+      //System: Check if the number of python interpreter process is '0'
+      //System: Check if the number of python process is '0'
+      interpreterModeActionsIT.authenticationUser("user2", "password3");
+      locator = By.xpath("//*[@id='notebook-names']//a[contains(@href, '" + user2noteId + "')]");
+      element = (new WebDriverWait(driver, MAX_BROWSER_TIMEOUT_SEC))
+          .until(ExpectedConditions.visibilityOfElementLocated(locator));
+      if (element.isDisplayed()) {
+        pollingWait(By.xpath("//*[@id='notebook-names']//a[contains(@href, '" + user2noteId + "')]"),
+            MAX_BROWSER_TIMEOUT_SEC).click();
+      }
+      clickAndWait(By.xpath("//*[@id='actionbar']//span[contains(@uib-tooltip, 'Interpreter binding')]"));
+      clickAndWait(By.xpath("//div[@data-ng-repeat='item in interpreterBindings' and contains(., 'python')]//a"));
+      clickAndWait(By.xpath("//div[@class='modal-dialog']" +
+          "[contains(.,'Do you want to restart python interpreter?')]" +
+          "//div[@class='bootstrap-dialog-footer-buttons']//button[contains(., 'OK')]"));
+
+      locator = By.xpath("//div[@class='modal-dialog'][contains(.,'Do you want to restart python interpreter?')]");
+      LOG.info("Holding on until if interpreter restart dialog is disappeared or not in testPerUserIsolatedAction");
+      invisibilityStatus = (new WebDriverWait(driver, MAX_BROWSER_TIMEOUT_SEC))
+          .until(ExpectedConditions.invisibilityOfElementLocated(locator));
+      if (invisibilityStatus == false) {
+        assertTrue("interpreter setting dialog visibility status", invisibilityStatus);
+      }
+      locator = By.xpath("//*[@id='actionbar']//span[contains(@uib-tooltip, 'Interpreter binding')]");
+      element = (new WebDriverWait(driver, MAX_BROWSER_TIMEOUT_SEC))
+          .until(ExpectedConditions.visibilityOfElementLocated(locator));
+      if (element.isDisplayed()) {
+        clickAndWait(By.xpath("//*[@id='actionbar']//span[contains(@uib-tooltip, 'Interpreter binding')]"));
+      }
+
+      resultProcessNum = (String) CommandExecutor.executeCommandLocalHost(cmdPsPython,
+          false, ProcessData.Types_Of_Data.OUTPUT);
+      resultProcessNum = resultProcessNum.trim().replaceAll("\n", "");
+      collector.checkThat("The number of python process is", resultProcessNum, CoreMatchers.equalTo("0"));
+      resultProcessNum = (String) CommandExecutor.executeCommandLocalHost(cmdPsInterpreter,
+          false, ProcessData.Types_Of_Data.OUTPUT);
+      resultProcessNum = resultProcessNum.trim().replaceAll("\n", "");
+      collector.checkThat("The number of python interpreter process is", resultProcessNum, CoreMatchers.equalTo("0"));
+      interpreterModeActionsIT.logoutUser("user2");
+
+      //step 6: (user1) login, come back note user1 made, run first paragraph,logout
+      //        (user2) login, come back note user2 made, run first paragraph, check process, logout
+      //System: Check if the number of python process is '2'
+      //System: Check if the number of python interpreter process is '2'
+      interpreterModeActionsIT.authenticationUser("user1", "password2");
+      locator = By.xpath("//*[@id='notebook-names']//a[contains(@href, '" + user1noteId + "')]");
+      element = (new WebDriverWait(driver, MAX_BROWSER_TIMEOUT_SEC))
+          .until(ExpectedConditions.visibilityOfElementLocated(locator));
+      if (element.isDisplayed()) {
+        pollingWait(By.xpath("//*[@id='notebook-names']//a[contains(@href, '" + user1noteId + "')]"),
+            MAX_BROWSER_TIMEOUT_SEC).click();
+      }
+      waitForParagraph(1, "FINISHED");
+      runParagraph(1);
+      try {
+        waitForParagraph(1, "FINISHED");
+      } catch (TimeoutException e) {
+        waitForParagraph(1, "ERROR");
+        collector.checkThat("Exception in InterpreterModeActionsIT while running Python Paragraph",
+            "ERROR", CoreMatchers.equalTo("FINISHED"));
+      }
+      interpreterModeActionsIT.logoutUser("user1");
+
+      interpreterModeActionsIT.authenticationUser("user2", "password3");
+      locator = By.xpath("//*[@id='notebook-names']//a[contains(@href, '" + user2noteId + "')]");
+      element = (new WebDriverWait(driver, MAX_BROWSER_TIMEOUT_SEC))
+          .until(ExpectedConditions.visibilityOfElementLocated(locator));
+      if (element.isDisplayed()) {
+        pollingWait(By.xpath("//*[@id='notebook-names']//a[contains(@href, '" + user2noteId + "')]"),
+            MAX_BROWSER_TIMEOUT_SEC).click();
+      }
+      runParagraph(1);
+      try {
+        waitForParagraph(1, "FINISHED");
+      } catch (TimeoutException e) {
+        waitForParagraph(1, "ERROR");
+        collector.checkThat("Exception in InterpreterModeActionsIT while running Python Paragraph",
+            "ERROR", CoreMatchers.equalTo("FINISHED"));
+      }
+      resultProcessNum = (String) CommandExecutor.executeCommandLocalHost(cmdPsPython,
+          false, ProcessData.Types_Of_Data.OUTPUT);
+      resultProcessNum = resultProcessNum.trim().replaceAll("\n", "");
+      collector.checkThat("The number of python process is", resultProcessNum, CoreMatchers.equalTo("2"));
+      resultProcessNum = (String) CommandExecutor.executeCommandLocalHost(cmdPsInterpreter,
+          false, ProcessData.Types_Of_Data.OUTPUT);
+      resultProcessNum = resultProcessNum.trim().replaceAll("\n", "");
+      collector.checkThat("The number of python interpreter process is", resultProcessNum, CoreMatchers.equalTo("2"));
+      interpreterModeActionsIT.logoutUser("user2");
+
+      //step 7: (admin) login, restart python interpreter in interpreter tab, check process, logout
+      //System: Check if the number of python interpreter process is 0
+      //System: Check if the number of python process is 0
+      interpreterModeActionsIT.authenticationUser("admin", "password1");
+      pollingWait(By.xpath("//div/button[contains(@class, 'nav-btn dropdown-toggle ng-scope')]"),
+          MAX_BROWSER_TIMEOUT_SEC).click();
+
+      clickAndWait(By.xpath("//li/a[contains(@href, '#/interpreter')]"));
+      pollingWait(By.xpath("//input[contains(@ng-model, 'searchInterpreter')]"),
+          MAX_BROWSER_TIMEOUT_SEC).sendKeys("python");
+      ZeppelinITUtils.sleep(500, false);
+
+      clickAndWait(By.xpath("//div[contains(@id, 'python')]" +
+          "//button[contains(@ng-click, 'restartInterpreterSetting(setting.id)')]"));
+      clickAndWait(By.xpath("//div[@class='modal-dialog']" +
+          "[contains(.,'Do you want to restart this interpreter?')]" +
+          "//div[@class='bootstrap-dialog-footer-buttons']//button[contains(., 'OK')]"));
+      locator = By.xpath("//div[@class='modal-dialog'][contains(.,'Do you want to restart python interpreter?')]");
+      LOG.info("Holding on until if interpreter restart dialog is disappeared or not in testPerUserIsolatedAction");
+      invisibilityStatus = (new WebDriverWait(driver, MAX_BROWSER_TIMEOUT_SEC))
+          .until(ExpectedConditions.invisibilityOfElementLocated(locator));
+      if (invisibilityStatus == false) {
+        assertTrue("interpreter setting dialog visibility status", invisibilityStatus);
+      }
+
+      resultProcessNum = (String) CommandExecutor.executeCommandLocalHost(cmdPsPython,
+          false, ProcessData.Types_Of_Data.OUTPUT);
+      resultProcessNum = resultProcessNum.trim().replaceAll("\n", "");
+      collector.checkThat("The number of python process is", resultProcessNum, CoreMatchers.equalTo("0"));
+      resultProcessNum = (String) CommandExecutor.executeCommandLocalHost(cmdPsInterpreter,
+          false, ProcessData.Types_Of_Data.OUTPUT);
+      resultProcessNum = resultProcessNum.trim().replaceAll("\n", "");
+      collector.checkThat("The number of python interpreter process is", resultProcessNum, CoreMatchers.equalTo("0"));
+      interpreterModeActionsIT.logoutUser("admin");
+    } catch (Exception e) {
+      handleException("Exception in InterpreterModeActionsIT while testPerUserIsolatedAction ", e);
+    }
+  }
+}


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