Our daily work is comprised of testing a product and improve its quality. However, here and there, we can come to a state where we find a need to build a tool, that can make our work easierbetter. I will share from my experience when I found myself in a situation where building a tool was needed. We will start with a web application that allows you to know when a food delivery you ordered arrives to the office, and then we will focus on a tool that test the performance of an app from the UI side. We will do a live demo for both of them.

1. Develop Tools, While Testing
Saar Rachamim, Gett

2. About Me
Saar Rachamim
BE Developer @Gett
saarr@gett.com

3. About Me
Developing automation tools
Innovation

4. About Me
Developing automation tools
Innovation

5. Automate everything
def main():
time.sleep(17)
conn = telnetlib.Telnet(host=COFFEE_MACHINE_ADDR)
conn.open()
conn.expect([COFFEE_MACHINE_PROM])
conn.write(COFFEE_MACHINE_PASS)
conn.write('sys brew')
time.sleep(64)
conn.write('sys pour')
conn.close()

6. Automate everything
def main():
time.sleep(17)
conn = telnetlib.Telnet(host=COFFEE_MACHINE_ADDR)
conn.open()
conn.expect([COFFEE_MACHINE_PROM])
conn.write(COFFEE_MACHINE_PASS)
conn.write('sys brew')
time.sleep(64)
conn.write('sys pour')
conn.close()

7. Automate everything

8. Origin Story

9. Origin Story
23
22
21

10. Origin Story

11. Origin Story

12. Origin Story

13. Origin Story

14. Origin Story

15. Origin Story

16. Origin Story

17. Origin Story

18. Origin Story

19. Origin Story

20. Design
.
.
.

21. Design

22. Demo

23. Gett’s Road
A product loved for its quality
Join the ride

24. Automation Performance Tool Origin Story

25. App Stability Problem

26. App Stability

27. Solutions

28. Solutions
Manual Automation

29. Solutions
Manual Automation
Third party In-house

30. Selected Solution:
Developing in House Tool

31. Developing your own tool
● Questions in mind
○ What language to choose (JavaC#...)

32. Developing your own tool
● Questions in mind
○ What language to choose (JavaC#...)
○ What platform - mobile, desktop or web

33. Developing your own tool
● Questions in mind
○ What language to choose (JavaC#...)
○ What platform - mobile, desktop or web
○ DB: Sql, NoSql

34. Design

35. Design

36. Design

37. Design

38. Design

39. The Tool Code

40. Test Code
public class SeleniumTest {
@Test
public void test(){
String testName = Thread.currentThread().getStackTrace()[1].getMethodName();
new ThreadExecuter(testName).execute();
new TestExecuter().execute();
}
}

41. Test Code
public class SeleniumTest {
@Test
public void test(){
String testName = Thread.currentThread().getStackTrace()[1].getMethodName();
new ThreadExecuter(testName).execute();
new TestExecuter().execute();
}
}

42. Test Code
public class SeleniumTest {
@Test
public void test(){
String testName = Thread.currentThread().getStackTrace()[1].getMethodName();
new ThreadExecuter(testName).execute();
new TestExecuter().execute();
}
}

43. Test Code
public class SeleniumTest {
@Test
public void test(){
String testName = Thread.currentThread().getStackTrace()[1].getMethodName();
new ThreadExecuter(testName).execute();
new TestExecuter().execute();
}
}

44. Test Code
public class TestExecuter {
public void execute(){
WebDriver driver = new ChromeDriver();
driver.manage().timeouts().implicitlyWait(30, TimeUnit.SECONDS);
boolean stop = false;
while(stop){
try{
driver.get(Constants.GOOGLE);
WebElement searchField = driver.findElement(By.xpath(Constants.SEARCH_FIELD));
searchField.sendKeys(new TextGenerator().getTextToSearch());
WebElement searchButton = driver.findElement(By.xpath(Constants.SEARCH_BUTTON));
searchButton.click();
Thread.sleep(Constants.FIVE_SECONDS);
}
catch(Exception e){}
}
}
}

45. Test Code
public class TestExecuter {
public void execute(){
WebDriver driver = new ChromeDriver();
driver.manage().timeouts().implicitlyWait(30, TimeUnit.SECONDS);
boolean stop = false;
while(stop){
try{
driver.get(Constants.GOOGLE);
WebElement searchField = driver.findElement(By.xpath(Constants.SEARCH_FIELD));
searchField.sendKeys(new TextGenerator().getTextToSearch());
WebElement searchButton = driver.findElement(By.xpath(Constants.SEARCH_BUTTON));
searchButton.click();
Thread.sleep(Constants.FIVE_SECONDS);
}
catch(Exception e){}
}
}
}

46. Process Handler Code
public String getCpuUsageByProcessName(String name) throws IOException {
String[] inputArr = {"ps", "-em", "-o", "%cpu,command"};
String retVal = executeTerminalCommands(inputArr, name);
return returnSubStringAccordingStr(retVal, " /").replace(" ", "");
}
private String executeTerminalCommands(String[] inputArr, String commandPart) throws IOException {
String line;
Process process = Runtime.getRuntime().exec(inputArr);
BufferedReader input = new BufferedReader(new InputStreamReader(process.getInputStream()));
while ((line = input.readLine()) != null) {
if (line.contains(commandPart))
{
return line;
}
}
return "-1";
}

47. Process Handler Code
public String getCpuUsageByProcessName(String name) throws IOException {
String[] inputArr = {"ps", "-em", "-o", "%cpu,command"};
String retVal = executeTerminalCommands(inputArr, name);
return returnSubStringAccordingStr(retVal, " /").replace(" ", "");
}
private String executeTerminalCommands(String[] inputArr, String commandPart) throws IOException {
String line;
Process process = Runtime.getRuntime().exec(inputArr);
BufferedReader input = new BufferedReader(new InputStreamReader(process.getInputStream()));
while ((line = input.readLine()) != null) {
if (line.contains(commandPart))
{
return line;
}
}
return "-1";
}

48. Process Handler Code
public String getCpuUsageByProcessName(String name) throws IOException {
String[] inputArr = {"ps", "-em", "-o", "%cpu,command"};
String retVal = executeTerminalCommands(inputArr, name);
return returnSubStringAccordingStr(retVal, " /").replace(" ", "");
}
private String executeTerminalCommands(String[] inputArr, String commandPart) throws IOException {
String line;
Process process = Runtime.getRuntime().exec(inputArr);
BufferedReader input = new BufferedReader(new InputStreamReader(process.getInputStream()));
while ((line = input.readLine()) != null) {
if (line.contains(commandPart))
{
return line;
}
}
return "-1";
}

49. Process Handler Code
public String getCpuUsageByProcessName(String name) throws IOException {
String[] inputArr = {"ps", "-em", "-o", "%cpu,command"};
String retVal = executeTerminalCommands(inputArr, name);
return returnSubStringAccordingStr(retVal, " /").replace(" ", "");
}
private String executeTerminalCommands(String[] inputArr, String commandPart) throws IOException {
String line;
Process process = Runtime.getRuntime().exec(inputArr);
BufferedReader input = new BufferedReader(new InputStreamReader(process.getInputStream()));
while ((line = input.readLine()) != null) {
if (line.contains(commandPart))
{
return line;
}
}
return "-1";
}

50. Requests Handler Code
ProcessHandler ph = new ProcessHandler();
RequestHandler requestHandler = new RequestHandler(Constants.FB_URL);
String retKey = requestHandler.postHttp("", new String[]{"Content-Type", "Authorization"}, new String[]{"application/x-
www-form-urlencoded", "key=" + Constants.SECRET}, "{"time":"" + Calendar.getInstance().getTime() + "",
"testName":"" + testName + "", "browser":"Chrome"}");
while (true) {
try {
String cpu = ph.getCpuUsageByProcessName(Constants.PROCESS_NAME);
String mem = ph.getMemoryUsageByProcessName(Constants.PROCESS_NAME);
requestHandler.postHttp(retKey, new String[]{"Content-Type", "Authorization"}, new String[]{"application/x-
www-form-urlencoded", "key=" + Constants.SECRET}, "{"mem":"" + mem + "","cpu":"" + cpu + "", "time":"" +
Calendar.getInstance().getTime() + ""}");
} catch (Exception e) {
System.out.println(e);
}
}

51. Requests Handler Code
ProcessHandler ph = new ProcessHandler();
RequestHandler requestHandler = new RequestHandler(Constants.FB_URL);
String retKey = requestHandler.postHttp("", new String[]{"Content-Type", "Authorization"}, new String[]{"application/x-
www-form-urlencoded", "key=" + Constants.SECRET}, "{"time":"" + Calendar.getInstance().getTime() + "",
"testName":"" + testName + "", "browser":"Chrome"}");
while (true) {
try {
String cpu = ph.getCpuUsageByProcessName(Constants.PROCESS_NAME);
String mem = ph.getMemoryUsageByProcessName(Constants.PROCESS_NAME);
requestHandler.postHttp(retKey, new String[]{"Content-Type", "Authorization"}, new String[]{"application/x-
www-form-urlencoded", "key=" + Constants.SECRET}, "{"mem":"" + mem + "","cpu":"" + cpu + "", "time":"" +
Calendar.getInstance().getTime() + ""}");
} catch (Exception e) {
System.out.println(e);
}
}

52. Requests Handler Code
ProcessHandler ph = new ProcessHandler();
RequestHandler requestHandler = new RequestHandler(Constants.FB_URL);
String retKey = requestHandler.postHttp("", new String[]{"Content-Type", "Authorization"}, new String[]{"application/x-
www-form-urlencoded", "key=" + Constants.SECRET}, "{"time":"" + Calendar.getInstance().getTime() + "",
"testName":"" + testName + "", "browser":"Chrome"}");
while (true) {
try {
String cpu = ph.getCpuUsageByProcessName(Constants.PROCESS_NAME);
String mem = ph.getMemoryUsageByProcessName(Constants.PROCESS_NAME);
requestHandler.postHttp(retKey, new String[]{"Content-Type", "Authorization"}, new String[]{"application/x-
www-form-urlencoded", "key=" + Constants.SECRET}, "{"mem":"" + mem + "","cpu":"" + cpu + "", "time":"" +
Calendar.getInstance().getTime() + ""}");
} catch (Exception e) {
System.out.println(e);
}
}

53. Html Code
<div class="container">
<div class="jumbotron">
<div class="panel-heading"></div>
<div ng-controller="MyController">
<div class="text-center">
<select ng-options="testName as testName for testName in testsNames" ng-model="selectedTest"></select>
<select ng-options="testTime as testTime for testTime in testsTime" ng-model="timeSelected"></select>
<select ng-options="measurement as measurement for measurement in measurements" ng-
model="measurementSelected"></select>
<button type="button" class="btn btn-primary my-2" ng-click="createGraph(selectedTest, timeSelected,
measurementSelected)">Execute</button>
</div>
<div class="text-left" style="margin-top:30px">

54. Html Code
<div class="container">
<div class="jumbotron">
<div class="panel-heading"></div>
<div ng-controller="MyController">
<div class="text-center">
<select ng-options="testName as testName for testName in testsNames" ng-model="selectedTest"></select>
<select ng-options="testTime as testTime for testTime in testsTime" ng-model="timeSelected"></select>
<select ng-options="measurement as measurement for measurement in measurements" ng-
model="measurementSelected"></select>
<button type="button" class="btn btn-primary my-2" ng-click="createGraph(selectedTest, timeSelected,
measurementSelected)">Execute</button>
</div>
<div class="text-left" style="margin-top:30px">

55. Angular Code
$scope.createGraph = function (selectedTest, timeSelected, measurementSelected) {
...
angular.forEach(array, function (test) {
if (test.time == timeSelected && test.testName == selectedTest) {
$scope.currentData = new Array();
for (var key in test) {
var specimentRecord = test[key];
if (specimentRecord != null && typeof specimentRecord !== "undefined") {
$scope.currentData.push(specimentRecord);
$scope.currentlabels.push(specimentRecord.time);
}
}
$scope.currentData = $filter('orderBy')($scope.currentData, "time");
$scope.data = new Array();
$scope.labels = new Array();
for (var key in $scope.currentData) {
if (measurementSelected == "cpu" && typeof $scope.currentData[key].cpu !== "undefined")
$scope.data.push($scope.currentData[key].cpu);
if (measurementSelected == "memory" && typeof $scope.currentData[key].mem !== "undefined")
$scope.data.push($scope.currentData[key].mem);
if (typeof $scope.currentData[key].cpu !== "undefined" || typeof $scope.currentData[key].mem !== "undefined")
$scope.labels.push($scope.currentData[key].time);
}

56. Angular Code
$scope.createGraph = function (selectedTest, timeSelected, measurementSelected) {
...
angular.forEach(array, function (test) {
if (test.time == timeSelected && test.testName == selectedTest) {
$scope.currentData = new Array();
for (var key in test) {
var specimentRecord = test[key];
if (specimentRecord != null && typeof specimentRecord !== "undefined") {
$scope.currentData.push(specimentRecord);
$scope.currentlabels.push(specimentRecord.time);
}
}
$scope.currentData = $filter('orderBy')($scope.currentData, "time");
$scope.data = new Array();
$scope.labels = new Array();
for (var key in $scope.currentData) {
if (measurementSelected == "cpu" && typeof $scope.currentData[key].cpu !== "undefined")
$scope.data.push($scope.currentData[key].cpu);
if (measurementSelected == "memory" && typeof $scope.currentData[key].mem !== "undefined")
$scope.data.push($scope.currentData[key].mem);
if (typeof $scope.currentData[key].cpu !== "undefined" || typeof $scope.currentData[key].mem !== "undefined")
$scope.labels.push($scope.currentData[key].time);
}

57. Angular Code
$scope.createGraph = function (selectedTest, timeSelected, measurementSelected) {
...
angular.forEach(array, function (test) {
if (test.time == timeSelected && test.testName == selectedTest) {
$scope.currentData = new Array();
for (var key in test) {
var specimentRecord = test[key];
if (specimentRecord != null && typeof specimentRecord !== "undefined") {
$scope.currentData.push(specimentRecord);
$scope.currentlabels.push(specimentRecord.time);
}
}
$scope.currentData = $filter('orderBy')($scope.currentData, "time");
$scope.data = new Array();
$scope.labels = new Array();
for (var key in $scope.currentData) {
if (measurementSelected == "cpu" && typeof $scope.currentData[key].cpu !== "undefined")
$scope.data.push($scope.currentData[key].cpu);
if (measurementSelected == "memory" && typeof $scope.currentData[key].mem !== "undefined")
$scope.data.push($scope.currentData[key].mem);
if (typeof $scope.currentData[key].cpu !== "undefined" || typeof $scope.currentData[key].mem !== "undefined")
$scope.labels.push($scope.currentData[key].time);
}

58. Angular Code
$scope.createGraph = function (selectedTest, timeSelected, measurementSelected) {
...
angular.forEach(array, function (test) {
if (test.time == timeSelected && test.testName == selectedTest) {
$scope.currentData = new Array();
for (var key in test) {
var specimentRecord = test[key];
if (specimentRecord != null && typeof specimentRecord !== "undefined") {
$scope.currentData.push(specimentRecord);
$scope.currentlabels.push(specimentRecord.time);
}
}
$scope.currentData = $filter('orderBy')($scope.currentData, "time");
$scope.data = new Array();
$scope.labels = new Array();
for (var key in $scope.currentData) {
if (measurementSelected == "cpu" && typeof $scope.currentData[key].cpu !== "undefined")
$scope.data.push($scope.currentData[key].cpu);
if (measurementSelected == "memory" && typeof $scope.currentData[key].mem !== "undefined")
$scope.data.push($scope.currentData[key].mem);
if (typeof $scope.currentData[key].cpu !== "undefined" || typeof $scope.currentData[key].mem !== "undefined")
$scope.labels.push($scope.currentData[key].time);
}

59. Angular Code
$scope.createGraph = function (selectedTest, timeSelected, measurementSelected) {
...
angular.forEach(array, function (test) {
if (test.time == timeSelected && test.testName == selectedTest) {
$scope.currentData = new Array();
for (var key in test) {
var specimentRecord = test[key];
if (specimentRecord != null && typeof specimentRecord !== "undefined") {
$scope.currentData.push(specimentRecord);
$scope.currentlabels.push(specimentRecord.time);
}
}
$scope.currentData = $filter('orderBy')($scope.currentData, "time");
$scope.data = new Array();
$scope.labels = new Array();
for (var key in $scope.currentData) {
if (measurementSelected == "cpu" && typeof $scope.currentData[key].cpu !== "undefined")
$scope.data.push($scope.currentData[key].cpu);
if (measurementSelected == "memory" && typeof $scope.currentData[key].mem !== "undefined")
$scope.data.push($scope.currentData[key].mem);
if (typeof $scope.currentData[key].cpu !== "undefined" || typeof $scope.currentData[key].mem !== "undefined")
$scope.labels.push($scope.currentData[key].time);
}

60. Angular Code
$scope.createGraph = function (selectedTest, timeSelected, measurementSelected) {
...
angular.forEach(array, function (test) {
if (test.time == timeSelected && test.testName == selectedTest) {
$scope.currentData = new Array();
for (var key in test) {
var specimentRecord = test[key];
if (specimentRecord != null && typeof specimentRecord !== "undefined") {
$scope.currentData.push(specimentRecord);
$scope.currentlabels.push(specimentRecord.time);
}
}
$scope.currentData = $filter('orderBy')($scope.currentData, "time");
$scope.data = new Array();
$scope.labels = new Array();
for (var key in $scope.currentData) {
if (measurementSelected == "cpu" && typeof $scope.currentData[key].cpu !== "undefined")
$scope.data.push($scope.currentData[key].cpu);
if (measurementSelected == "memory" && typeof $scope.currentData[key].mem !== "undefined")
$scope.data.push($scope.currentData[key].mem);
if (typeof $scope.currentData[key].cpu !== "undefined" || typeof $scope.currentData[key].mem !== "undefined")
$scope.labels.push($scope.currentData[key].time);
}

61. Angular Code
$scope.createGraph = function (selectedTest, timeSelected, measurementSelected) {
...
angular.forEach(array, function (test) {
if (test.time == timeSelected && test.testName == selectedTest) {
$scope.currentData = new Array();
for (var key in test) {
var specimentRecord = test[key];
if (specimentRecord != null && typeof specimentRecord !== "undefined") {
$scope.currentData.push(specimentRecord);
$scope.currentlabels.push(specimentRecord.time);
}
}
$scope.currentData = $filter('orderBy')($scope.currentData, "time");
$scope.data = new Array();
$scope.labels = new Array();
for (var key in $scope.currentData) {
if (measurementSelected == "cpu" && typeof $scope.currentData[key].cpu !== "undefined")
$scope.data.push($scope.currentData[key].cpu);
if (measurementSelected == "memory" && typeof $scope.currentData[key].mem !== "undefined")
$scope.data.push($scope.currentData[key].mem);
if (typeof $scope.currentData[key].cpu !== "undefined" || typeof $scope.currentData[key].mem !== "undefined")
$scope.labels.push($scope.currentData[key].time);
}

62. Angular Code
$scope.createGraph = function (selectedTest, timeSelected, measurementSelected) {
...
angular.forEach(array, function (test) {
if (test.time == timeSelected && test.testName == selectedTest) {
$scope.currentData = new Array();
for (var key in test) {
var specimentRecord = test[key];
if (specimentRecord != null && typeof specimentRecord !== "undefined") {
$scope.currentData.push(specimentRecord);
$scope.currentlabels.push(specimentRecord.time);
}
}
$scope.currentData = $filter('orderBy')($scope.currentData, "time");
$scope.data = new Array();
$scope.labels = new Array();
for (var key in $scope.currentData) {
if (measurementSelected == "cpu" && typeof $scope.currentData[key].cpu !== "undefined")
$scope.data.push($scope.currentData[key].cpu);
if (measurementSelected == "memory" && typeof $scope.currentData[key].mem !== "undefined")
$scope.data.push($scope.currentData[key].mem);
if (typeof $scope.currentData[key].cpu !== "undefined" || typeof $scope.currentData[key].mem !== "undefined")
$scope.labels.push($scope.currentData[key].time);
}

63. Demo

64. Code Repository
https://github.com/saarRachamim/dev/tree/master/ConferenceTests
https://github.com/saarRachamim/dev/tree/master/conference_tool

65. Summary

66. Contact Information
saarrac@gmail.com
https://www.linkedin.com/in/saar-rachamim-14055a27/

67. Questions?