Compatibility Testing Performance Testing Computer Science Essay

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Developer has successfully completed Implementation phase of OnlineTutor.com in the last chapter. This chapter will deal with Testing Approach as well as how the application of OnlineTutor.com has been tested by the developer.

Testing plays a vital role in the evaluation of quality of an application. It helps developer as well as end users to know whether system meets requirement or not. It is not limited to check only bugs, but also helps in verification and validation of system. The testing approach of web based application is different as compared to stand alone system. It is tested on different hardware plat form as well as on software.

The quality of web application is considered by following points and that are measured by testing techniques.

The content of web application should be evaluated at syntactic (spelling, punctuation, grammar) and semantic (correctness and consistency of information) level.

Function should be tested to uncover errors that may lead towards lack of customer requirements.

The structure of a web application should be assessed to ensure that it appropriately delivers contents and functions of it.

Usability should be tested to know that whether interface of application is easily under stable and learnable by users or not.

All links should be tested to ensure that level of navigability.

The application should be tested under various operating conditions and configuration to ensure the performance as well as compatibility.

The application should be tested with other applications and database to ensure its interoperability.

To know the level of quality of OnlineTutor.com, developer has tested all the functional web pages. It is done to see the output of system as compared to identified requirements, whether output meets the system and user requirements or not. In order to achieve system goal, the developer has gone through several types of testing techniques and they are as follows:

Unit Testing

Functional Testing

System Testing

Compatibility Testing

Performance Testing

7.1 UNIT TESTING

Developer has tested each module separately at the time of development. Due to page constraints, he has not given much attention on this type of testing here. However, it has helped a lot developer to know the bugs in the module at the end of the module and prompt him to rectify them.

Unit Testing: Sample Test Report of Student Registration Page

Developer has given this report just as an example how he performed unit testing.

UNIT TESTING: Student Register Page

Test Date

10th January, 2010

Test Duration

20 Minute

Test Data

Expected Result

Actual Result

Remark

Students have to enter their academic as well as residence details.

The details about student should be processed by the system and registered to the system successfully.

Student is registered successfully.

Pass

Table 7.1 Unit Testing: Student Register

UNIT TESTING: Login Page

Test Date

10th January, 2010

Test Duration

5 minute

Test Data

Expected Result

Actual Result

Remark

Users have to enter their email id and password.

Details should be processed by the system and checked with database. After successful validation, users should be redirected to their respective home page.

Logged in and redirected to respective home page.

Pass

Table 7.2 Unit Testing: Login Page

7.2 FUNCTIONAL TESTING

As the name suggest, this testing deals with testing of functionality of different modules of an application i.e. it reveals that whether each module is working properly, providing desired output and maintain consistency or not. This testing is done externally without knowing internal working structure of the system. In this testing, developer involved some tutors as well as students to check the functionality of each and every module.

Tester Type

Tester Name

Module Tested

Students

Diwakar: Class-9th (DPS)

Pranay: Class -10th (DAV)

Jyoti: Class-10th (DPS)

Shaliesh: Class-8th (MASD)

Register

Login

Find Tutor

Upload Problems

Request Tutorials

View Tutorials

Chat Room

Games

Quiz

Tutors

Mr. Pradeep Chandra: Science Tutor

Mr. Mahadeo Kumar: Math Tutor

Miss. Sonali: Social Science Tutor

Miss Rajni Roy: Computer Tutor

Register

Login

Provide Solutions

Upload Tutorials

Chat Room

Feedback

Facalty

Miss Aditi Mittal

Reply Feedback

Chat Room

Upload Problems

Provide Solutions

Approve Tutorials

Table 7.3 Testing: Functional Testing

Test case 1: Module Name: Student Register

Input: sEmail, sPass, sName, sGuardianName, sSchoolName, sClass, sSubject, sBoard, sAddress, sPincode, sTelephone, sMobile.

Output: Congratulations you have registered successfully.

Project Name:

OnlineTutor.com

Testing Date:

10th March 2010

Test Case Name:

Student Register

Test Case Number:

MM-01

Written by:

Ravi Kant Yadav

Approved by:

Project Developer

Description:

This module enables students to join or register to the system.

Scenario 1 (First Testing)

#

Function to Test

Expected Results

Actual Result

Remark

1

Add new student's details to the system.

Students details should inserted successfully.

New student details were inserted successfully

Pass

2

Duplicate Email ID should not be allowed.

System should give a message i.e. this Email Id already exists.

System did not prompt student that Email Id exists already.

Fail

3

Empty fields must not be allowed.

System should prompt student for the empty fields to fill.

System prompted student for the empty fields to fill.

Pass

4

Email Id must be entered in proper format as shown.

If format not matched, system should prompt student for proper format of Email Id.

System prompted student for proper Email Id format.

Pass

5

Telephone and Mobile No. must be in correct format.

System should prompt student for proper format of Telephone and Mobile No.

System prompted student for proper format of Telephone and Mobile No.

Pass

6

System must give response after pressing Submit Button.

System should give a message whether he registered successful or not.

The system displayed required message.

Pass

Scenario 2 (Second Testing)

7

Duplicate Email ID should not be allowed.

System should give an appropriate message i.e. this Email Id already exists.

System prompted student that Email Id exists already.

Pass

Table 7.4 Functional Testing: Student Register

Conclusion: First time student details added successfully without displaying error message although it had duplicate Email Id.

Note: Tutor registration is similar to Student registration, so it reveals that tutor registration also tested successfully.

Handler: Developer changed some part of code in this module and added some new code that enabled system to work according to requirement.

Incorrect Code Block

objconn.Open()

Dim objadp As New SqlDataAdapter("select sEmail from student where sEmail = '" & sEmail.Text & "'", objconn)

Dim ds As New DataSet

objadp.Fill(ds, "xyz")

Dim query As String

query = "insert into student(sEmail,sPass,sName,sGuardianName,sSchoolName,sClass,sSubject,sBoard,sAddress,sPincode,sTelephone,sMobile,status) values ('" & sEmail.Text & "','" & sPass.Text & "','" & sName.Text & "','" & sGuardianName.Text & "','" & sSchoolName.Text & "','" & sClass.Text & "','" & sSubject.Text & "','" & sBoard.Text & "', '" & sAddress.Text & "', " & sPincode.Text & ", " & sTelephone.Text & ", " & sMobile.Text & ",'Logout')"

Dim objcmd As New SqlCommand

objcmd.Connection = objconn

objcmd.CommandText = query

Dim i As Integer

i = objcmd.ExecuteNonQuery

If i = 1 Then

MsgBox("Congratulation you have been registered successfully. Now go for login for access the system", MsgBoxStyle.OkOnly, "Online Tutor")

End If

objconn.Close()

Correct Code Block

objconn.Open()

Dim objadp As New SqlDataAdapter("select sEmail from student where sEmail = '" & sEmail.Text & "'", objconn)

Dim ds As New DataSet

objadp.Fill(ds, "xyz")

Dim dTable As New DataTable

dTable = ds.Tables(0)

Dim iNumberOfRows As Integer

iNumberOfRows = dTable.Rows.Count

If (iNumberOfRows > 0) Then

MsgBox("User of this name is already exist, please use another name", MsgBoxStyle.Information, "Online Tutor")

sEmail.Text = ""

sEmail.Focus()

Exit Sub

Else

Dim query As String

query = "insert into student(sEmail,sPass,sName,sGuardianName,sSchoolName,sClass,sSubject,sBoard,sAddress,sPincode,sTelephone,sMobile,status) values ('" & sEmail.Text & "','" & sPass.Text & "','" & sName.Text & "','" & sGuardianName.Text & "','" & sSchoolName.Text & "','" & sClass.Text & "','" & sSubject.Text & "','" & sBoard.Text & "', '" & sAddress.Text & "', " & sPincode.Text & ", " & sTelephone.Text & ", " & sMobile.Text & ",'Logout')"

Dim objcmd As New SqlCommand

objcmd.Connection = objconn

objcmd.CommandText = query

Dim i As Integer

i = objcmd.ExecuteNonQuery

If i = 1 Then

MsgBox("Congratulation you have been registered successfully. Now go for login for access the system", MsgBoxStyle.OkOnly, "Online Tutor")

End If

End If

objconn.Close()

Test case 2: Module Name: Login

Input: uEmail (sEmail, tEmail or aEmail), uPassword (sPass, tPass or aPass)

Output: System should redirect users into their home page according to type of user i.e. student, tutor, admin, manager.

Project Name:

OnlineTutor.com

Testing Date:

10th March 2010

Test Case Name:

Login

Test Case Number:

MM-02

Written by:

Ravi Kant Yadav

Approved by:

Project Developer

Description:

This module authenticates different users and redirects them into their home page if their Email Id and/or Password are valid.

Scenario 1 (First Testing)

#

Function to Test

Expected Results

Actual Result

Remark

1

Validate Email Id and Password of user.

System should validate Email Id and Password of user.

System validated Email Id and password of User.

Pass

2

Redirect users into their home page according to their role.

Users should be redirected to their home page according to their role.

Users redirected to their home page.

Pass

3

Empty fields must not be allowed.

System should prompt users to fill empty fields.

System prompted users to fill empty fields.

Pass

4

Invalid Email Id and/or Password must not allow.

System should prompt users for valid Email Id and/or Password.

System prompted users for valid Email Id and/or Password

Pass

Table 7.5 Functional Testing: Login Page

Conclusion: Above test case deals that login module tested successfully without any bug and now any registered user can logged into system and they will redirect to their home page according to their roles.

Test Case 3: Module Name: Upload Problems

Input: subject, problem

Output: Problem submitted successfully.

Project Name:

OnlineTutor.com

Testing Date:

11th March 2010

Test Case Name:

Upload Problems

Test Case Number:

MM-03

Written by:

Ravi Kant Yadav

Approved by:

Project Developer

Description:

This module enables students to upload their problems i.e. home work or assignments to the system.

Scenario 1 (First Testing)

#

Function to Test

Expected Results

Actual Result

Remark

1

The subject name should be selected.

System should prompt student to select a particular subject.

System prompted students to select.

Pass

2

Problems area should not be empty.

The system should prompt students to fill the problems area.

The system prompt students for problems area.

Pass

3

Student must be informed by system as problems uploaded.

The system should give an appropriate message.

The system displayed an appropriate message as problems uploaded.

Pass

Table 7.6 Functional Testing: Upload Problems

Conclusion: Above test case reveals that, upload problems module has been tested successfully. Request Tutorial module is similar to this module, so we can say that developer was also successful in making request for tutorial also.

Test Case 4: Module Name: Student Chat Room

Input: subject, student, tutor, message

Output: Problem submitted successfully.

Project Name:

OnlineTutor.com

Testing Date:

11th March 2010

Test Case Name:

Student Chat Room

Test Case Number:

MM-04

Written by:

Ravi Kant Yadav

Approved by:

Project Developer

Description:

This module enables students to directly interact with tutors and discuss the problems with the help of shared area. They can send instant message to tutors and get answers promptly by them.

Scenario 1 (First Testing)

#

Function to Test

Expected Results

Actual Result

Remark

1

Student Should be log in.

The system should prompt students to login if not.

System prompted students to be logged in.

Pass

2

Only those tutors should display in the list that are under selected subject.

The system should display list of those tutors who are under particular subject.

The system displayed the list.

Pass

3

Offline tutors must not be displayed in the list.

If tutors are not online, system should display a message.

System did not display the message, rather display the offline tutors list.

Fail

4

Message writing box must not be empty.

The system should prompt students to write some message in message box.

The system prompted students to write message.

Pass

5

Message must be display in shared common area.

The system should display the message in shared common area.

The system displayed the message.

Pass

6

Shared common message area must be updated automatically.

The system should automatically update the message area.

The system automatically updated the message area.

Pass

Scenario 2 (Second Testing)

7

Offline tutors must not be displayed in the list.

If tutors are not online, system should display a message.

The system displayed the message.

Pass

Table 7.7 Functional Testing: Chat Room

Conclusion: Above test case reveals that, this module was having one problem due to which it was displaying offline tutors list. But in second testing that problem has be disappeared, as developer has rectified the code.

The Tutor Chat Module is similar to this module. It is concluded that, developer has also successfully tested that module and rectified the problems occurred

Incorrect Code Block

Dim objadp1 As New SqlDataAdapter("select tName as Name from tutor where tFavSub ='" & DropDownList1.SelectedValue & "' and status ='Login'", objconn)

Dim ds1 As New DataSet

objadp.Fill(ds1)

Dim i, iNumberOfRows As Integer

iNumberOfRows = ds.Tables(0).Rows.Count

For i = 0 To iNumberOfRows - 1

ListBox2.Items.Add(ds.Tables(0).Rows(i)("Name"))

Next

Correct Code Block

Dim objadp1 As New SqlDataAdapter("select tName as Name from tutor where tFavSub ='" & DropDownList1.SelectedValue & "' and status ='Login'", objconn)

Dim ds1 As New DataSet

objadp.Fill(ds1)

If ds1.Tables(0).Rows.Count = 0 Then

ListBox2.ForeColor = Drawing.Color.Red

ListBox2.Items.Add("No Tutor online")

Else

Dim i, iNumberOfRows As Integer

iNumberOfRows = ds.Tables(0).Rows.Count

For i = 0 To iNumberOfRows - 1

ListBox2.Items.Add(ds.Tables(0).Rows(i)("Name"))

Next

End If

Test Case 5: Module Name: Provide Solutions

Input: sEmail, tEmail, solutions.

Output: Solutions sent to student successfully.

Project Name:

OnlineTutor.com

Testing Date:

20th March 2010

Test Case Name:

Provide Solutions

Test Case Number:

MM-05

Written by:

Ravi Kant Yadav

Approved by:

Project Developer

Description:

This module enables tutors to select a problem and reply to the student through his/her email id with proper solutions.

Scenario 1 (First Testing)

#

Function to Test

Expected Results

Actual Result

Remark

1

Tutor should be logged in.

The system should prompt tutor to login if not.

System prompted tutors to be logged in.

Pass

2

One solution area must be displayed for selected problem.

The system should display a solution writing box.

The system displayed a solutions writing box.

Pass

3

Solutions area must not be blank.

The system should prompt the tutor for writing solution.

The system prompted the tutor.

Pass

4

The System must give response after pressing Submit Button.

The system should display a message.

The system displayed a message.

Pass

5

Solutions must be sent through student email id.

The system should send the solutions to the students email account.

System did not able to send the solutions.

Fail

Scenario 2 (Second Testing)

6

Solutions must be sent through student email id.

The system should send the solutions to the students email account.

The system sent the solution.

Pass

Table 7.8 Functional Testing: Provide Solutions

Conclusion: Above test case reveals that, this module was having one problem due to which it was not able to send the solution. But in second testing that problem has be disappeared, as developer has rectified the problems.

Error in the system: The SMTP (Simple Mail Transfer Protocol) server was not in running mode.

Solutions: Developer restarted the SMTP server and set it in running mode.

Test case 6: Module Name: Send Feedback

Input: uEmail (sEmail, tEmail) , uComment

Output: Feedback has sent successfully. You will be replied very soon on your Email Id.

Project Name:

OnlineTutor.com

Testing Date:

20th March 2010

Test Case Name:

Send Feedback

Test Case Number:

MM-06

Written by:

Ravi Kant Yadav

Approved by:

Project Developer

Description:

This module enables users (students or tutors) to submit their comments to the system.

Scenario 1 (First Testing)

#

Function to Test

Expected Results

Actual Result

Remark

1

Email ID must be in proper format.

The system should prompt user to write Email Id in proper format, if it is not.

System prompted user for correct format.

Pass

2

Blank fields must not be allowed.

The system should prompt users to a field if it is blank.

The system forced user to fill blank fields.

Pass

3

The system must respond to user after submitting feedback.

The system should display an appropriate message.

The system displayed an appropriate message.

Pass

4

Registered user's Email Id must automatically display in the feedback form.

The system should display the users Email Id in the feedback.

The system displayed registered user's email id.

Pass

Table 7.9 Functional Testing: Send Feedback

Conclusion: The above test case reveals that Send Feedback Module has been tested successfully without any but, so we can say that user was able to send feedback successfully.

Test case 7: Module Name: Reply Feedback

Input: uEmail (sEmail, tEmail), uComment, uReply

Output: Feedback is replied successfully.

Project Name:

OnlineTutor.com

Testing Date:

21st March 2010

Test Case Name:

Reply Feedback

Test Case Number:

MM-07

Written by:

Ravi Kant Yadav

Approved by:

Project Developer

Description:

This module is responsible for replying feedback to users through their email id and informed to admin after replying the user.

Scenario 1 (First Testing)

#

Function to Test

Expected Results

Actual Result

Remark

1

User's Email Id must automatically display on reply feedback form as admin select any feedback.

System should display particular user's email id whose feedback is selected.

System did not display particular Email Id.

Fail

2

Blank fields must not be allowed.

System should prompt admin for blank fields to fill.

System prompted admin for blank fields.

Pass

3

System must inform admin after replying.

System should display an appropriate message.

System displayed an appropriate message.

Pass

Scenario 2 (Second Testing)

4

User's Email Id must automatically display on reply feedback form as admin select any feedback.

System should display particular user's Email Id whose feedback is selected.

System displayed particular user's Email Id.

Pass

Table 7.10 Functional Testing: Reply Feedback

Conclusion: Above test case reveals that reply feedback module is tested successfully, so we can say that admin will be able to reply feedback successfully.

Handler: Developer changed some part of code in this module and added some new code that enabled system to work according to requirement.

Incorrect Code Block:

Dim objadp As New SqlDataAdapter("select feedId as ID, email as Email, comment as Comment, role as Role from feedback where status = 'Pending'", objconn)

Dim ds As New DataSet

objadp.Fill(ds)

If ds.Tables(0).Rows.Count = 0 Then

Label1.Visible = True

End If

Dim i As Integer

Session("feedId" & i) = ds.Tables(0).Rows(i)("ID")

Session("email" & i) = ds.Tables(0).Rows(i)("Email")

Session("comment" & i) = ds.Tables(0).Rows(i)("Comment")

GridView1.DataSource = ds.Tables(0).DefaultView

GridView1.DataBind()

objconn.Close()

Correct Code Block:

Dim objadp As New SqlDataAdapter("select feedId as ID, email as Email, comment as Comment, role as Role from feedback where status = 'Pending'", objconn)

Dim ds As New DataSet

objadp.Fill(ds)

If ds.Tables(0).Rows.Count = 0 Then

Label1.Visible = True

End If

Dim i As Integer

For i = 0 To ds.Tables(0).Rows.Count - 1

Session("feedId" & i) = ds.Tables(0).Rows(i)("ID")

Session("email" & i) = ds.Tables(0).Rows(i)("Email")

Session("comment" & i) = ds.Tables(0).Rows(i)("Comment")

Next

GridView1.DataSource = ds.Tables(0).DefaultView

GridView1.DataBind()

objconn.Close()

7.3 SYSTEM TESTING

Developer has performed this testing to very the complete system whether it meets overall functional and technical requirements or not. It is done in an environment that is closely resembles with the real environment where the application will finally worked.

Developer has tested the system on the basis of following parameters:

Navigation structure of the applicaion

Contents to the webpages

Level of security of the application

Proper use of different media

Usability of the applicaion

Project Title:

OnlineTutor.com

Testing Date:

22nd - 31st March 2010

Test Case Name:

System Testing

Test Case Id:

ST-01

Written by:

Ravi Kant Yadav

Approved by:

Project Developer

Description:

System testing is performed to know the working of complete system. It enables tester to test all modules together and compare system output with expected output.

Scenario

#

Function to Test

Expected Results

Actual Result

Remark

1

Internal, external and anchors links must be meaningful and linked to a particular page or content.

Each link should be attached with a page or content and after click event a particular page should be displayed.

Each link was meaningful and redirected to expected page.

Pass

2

Contents on each page must be according to requirements and free from syntactic and semantic errors.

Each page should have proper contents without syntactic and semantic errors.

Each page was having proper contents without syntactic and semantic errors.

Pass

3

System must provide proper verification and validation of users according to their roles.

System should verified the users and redirect them into respective home page.

Users were redirected into their respective home page.

Pass

4

The system must have proper use of different media such as text, graphic, etc.

The system should have proper use of media elements.

The system was having proper utilization of text, graphics etc.

Pass

5

The system must be easy to use, learn and provide user friendly environment.

The system should interactive and user friendly so that users can easily learn and interact with the system.

The system was fulfilling all usability goals and provided user friendly environment.

Pass

Table 7.11 System Testing

Conclusion: The above test case clearly reveals that system fullfils all technical and functional requirements and it is according to expection.

7.4 COMPATIBILITY TESTING

Compatibility testing has great importance for web based system as it has to operate on dirrerent types of environment where configurations of client-side computing are differs from one another. It must be copatible with differect types of coputers, display devices, operating system, web browsers. Developer has performed compatibility testing for this applicaion to know whether it displays consistent output or not.

Project Title:

OnlineTutor.com

Date:

1st -5th April 2010

Test Case Name:

Compatibility Testing

Test Case ID:

CT-01

Written by:

Ravi Kant Yadav

Approved by:

Project Developer

Description:

This testing enables developer to check the system on different environment such as web browsers, operating system. This test helps the developer to know the compatibility of system on different environment.

Scenario 1 (Browser Testing)

#

Browser Name

Testing Type

Problems if any

Remark

1

Internet Explorer 5.0 and above

Browser Testing

There were minor problem with games module. Rest module working fine.

Pass

2

Mozilla Firefox

Browser Testing

No problems

Pass

3

Google Chrome

Browser Testing

There were minor problem with games module. Rest module working fine.

Pass

4

Netscape Navigator

Browser Testing

No problems

Pass

5

Opera

Browser Testing

No problems

Pass

Scenario 2 (Operating System Testing)

1

Windows XP

Operating System Testing

No problems

Pass

2

Windows Vista

Operating System Testing

There was a problems occurred due to lack of SMTP, which is removed by installing SMTP freeware.

Pass

3

Windows 7

Operating System Testing

There was a problems occurred due to lack of SMTP, which is removed by installing SMTP freeware.

Pass

Table 7.12 Compatibility Testing

Conclusion: The above test case depicts that developer has successfully performed compatibitliy testing for OnlineTutor.com application. It obvious that it can operate in different environment without creating any issue.

7.5 PERFORMANCE TESTING

This testing is perforemed to uncover the performance problems of the application that can be due to many reasons such as lack of server-side resources, low bandwidth, lack of database compatibilities, or other hadware or software issues. All these issues lead to degrade the performance of client-server.

Developer has performed this testing with the help of folling parameters:

Respone time

Load issues

Display approprite message.

Handling of multiple request at the same time.

Project Title:

OnlineTutor.com

Testing Date:

6th -10th April, 2010

Test Case Name:

Performance Testing

Test Case ID:

PT-01

Written by:

Ravi Kant Yadav

Approved by:

Project Developer

Description:

This testing is performed to reveals performance problems of the application due to some technical problems.

Scenario

#

Function to Test

Expected Results

Actual Result

Remark

1

The system must handle and respond to various loading conditions.

The System should handle and respond all requests from many users at the same time.

The System handled and responded all users query at the same time promptly.

Pass

2

The system must response promptly.

The system should respond user as soon as possible.

The system responded user promptly.

Pass

3

The system must provide correct information to users.

The system should provide required information to the users.

The system provided required information to the users.

Pass

4

The system must provide appropriate message due to some technical problems.

The system should display appropriate message during some technical problems.

The system displayed appropriate message.

Pass

Table 7.13 Performance Testing

(Ref: Aggarwal, K.K. & Singh, Y. (2008) p365-440; Pressman, RS. (2005) p594-621)

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