Performance testing

Сентябрь 7, 2022

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Performance testing

Содержание

2. Required technical knowledge
3. User workflow vs Application workflow User Clicks Selects Checks Types Uploads Downloads Navigates Application Sends request
4. Client-server application architecture Request Response Transaction Request Response Async transaction sub-response sub-request sub-response sub-request
5. Request structure Protocol/method Headers Data Attachments
6. Response structure Protocol/method Headers Data Attachments
7. HTTP Protocol Methods Get – “show me the data that I want” Post – “take the
8. HTTP Protocol Methods Get – “show me the data that I want” Post – “take the
9. HTTP Protocol Examples where http methods are used properly: in public web services in projects where
10. HTTP Protocol Headers format – [header name]:[header value] groups General Headers – must bet present in
11. HTTP Protocol Headers (examples)
12. HTTP Protocol Message body Optional Content Overall: any text can be sent In particular: text that
13. HTTP Protocol Attachments Message body Sent in forms Key http headers: Content-Type: multipart/form-data Content-Disposition: form-data Content-Type:[text/plan
14. HTTP Protocol Message body (example)
15. HTTP Protocol Message body (example) 2 empty lines Request headers Message body Delimiter of form fields
16. HTTP Protocol Status codes 1xx Informational Request received, continuing process 2xx Success Request was received, understood,
17. HTTP Protocol Status codes: We knew it!: 200 – everything is OK 401 – something is
18. Regular expressions
19. Regular expressions Regular expressions are quite easy to learn
20. Regular expressions But doing this by slides is as easy…
21. Regular expressions …as learning Chinese
22. Regular expressions You will have to learn it by yourself
23. Regular expressions Theory https://en.wikipedia.org/wiki/Regular_expression http://www.rexegg.com/ Interactive online tutorial http://regexone.com/ Online regular expression editors http://rubular.com/ http://www.regexr.com/ https://regex101.com/#javascript
24. Regular expressions But here is some basic understanding
25. Regular expressions What to search Where to search How many times it should appear Searching algorithm
26. Regular expressions What to search Characters abc123 use backslash for meta characters! ^$.?* Character classes []
27. Regular expressions Where to search Start/End of text ^ and $ Start/End of a word \b
28. Regular expressions How many times it should appear (quantification) Particular number of times {n} Range {m,
29. Regular expressions Searching algorithm Greedy repeat a quantifier as many times as possible Lazy Repeat a
30. Regular expressions Greedy Example: “stress” testing and “capacity” testing are not the same Take anything that
31. Tools that can help SoapUI Check available functions on an endpoint (WADL/WSDL) List of all functions
32. Tools that can help SoapUI http://www.soapui.org Chapters recommended for reading/watching About SoapUI Videos Functional Testing REST
33. Tools that can help Chrome Developer Tools https://developer.chrome.com/devtools/docs/network Network tab is the most important here Note!
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Слайд 2

Required technical knowledge

Слайд 3

User workflow vs Application workflow
User
Clicks
Selects
Checks
Types
Uploads
Downloads
Navigates
Application
Sends request
Receives response
Sends request
Receives response
Sends request
Receives sub-response
Sends

sub-request
Receives sub-response
Sends sub-request
Receives response

Performance tests look like

THIS

NOT THIS

Слайд 4

Client-server application architecture
Request
Response
Transaction
Request
Response
Async transaction
sub-response
sub-request
sub-response
sub-request

Слайд 5

Request structure
Protocol/method
Headers
Data
Attachments

Слайд 6

Response structure
Protocol/method
Headers
Data
Attachments

Слайд 7

HTTP Protocol
Methods
Get – “show me the data that I want”
Post –

“take the data and process it”
Put – “keep the data please”
Delete – “delete the data please”
+5 more

Theoretically | Best Practices | Classic approach

Each method has its own role

Слайд 8

HTTP Protocol
Methods
Get – “show me the data that I want”
Post –

“take the data and process it”
Put – “keep the data please”
Delete – “delete the data please”
+5 more

“Always be prepared…”

Technically – “Nothing is impossible”

Слайд 9

HTTP Protocol
Examples where http methods are used properly:
in public web services
in

projects where coding best practices are strictly followed
Examples where http methods can be messed up:
in http server based web applications
in projects where best practices aren’t strictly enforced
“Bad” practices that you can face
use POST for searches
use POST to delete something
never use DELETE, PUT
etc.

“Always be prepared…”

Слайд 10

HTTP Protocol
Headers
format – [header name]:[header value]
groups
General Headers – must bet present

in ALL requests
Request Headers – are present in CLIENT requests only
Response Headers – are present in SERVER responses only
Entity Headers – details related to content of a request/response
some headers belong to few groups

Слайд 11

HTTP Protocol
Headers (examples)

Слайд 12

HTTP Protocol
Message body
Optional
Content
Overall: any text can be sent
In particular: text that

target server understands
+ Entity Headers if/where needed

Слайд 13

HTTP Protocol
Attachments Message body
Sent in forms
Key http headers:
Content-Type: multipart/form-data
Content-Disposition: form-data
Content-Type:[text/plan |

application/x-object | etc.]

Слайд 14

HTTP Protocol
Message body (example)

Слайд 15

HTTP Protocol
Message body (example)
2 empty lines
Request headers
Message body
Delimiter of form fields
Content

of a particular field

Empty line between headers and content

Content of a file is sent as binary code

Слайд 16

HTTP Protocol
Status codes
1xx Informational
Request received, continuing process
2xx Success
Request was received, understood,

accepted and processed successfully
3xx Redirection
Client must take additional action to complete the request
4xx Client Error
Client seems to have erred
5xx Server Error
The server failed to fulfil an apparently valid request

Слайд 17

HTTP Protocol
Status codes:
We knew it!:
200 – everything is OK
401 – something

is wrong with sent credentials
404 – requested page is absent
500 – server is down
Do you know more codes?
1xx – 3 codes
2xx – 10 codes
3xx – 10 codes
4xx – 43 codes
5xx – 16 codes

Слайд 18

Regular expressions

Слайд 19

Regular expressions
Regular expressions are quite easy to learn

Слайд 20

Regular expressions
But doing this by slides is as easy…

Слайд 21

Regular expressions
…as learning Chinese

Слайд 22

Regular expressions
You will have to learn it by yourself

Слайд 23

Regular expressions
Theory
https://en.wikipedia.org/wiki/Regular_expression
http://www.rexegg.com/
Interactive online tutorial
http://regexone.com/
Online regular expression editors
http://rubular.com/
http://www.regexr.com/
https://regex101.com/#javascript
Desktop regular expression editor
http://www.weitz.de/regex-coach/

Слайд 24

Regular expressions
But here is some basic understanding

Слайд 25

Regular expressions
What to search
Where to search
How many times it should appear
Searching

algorithm

Слайд 26

Regular expressions
What to search
Characters abc123
use backslash for meta characters! ^$.?*
Character classes []
Groups ()
Alternatives |

Слайд 27

Regular expressions
Where to search
Start/End of text ^ and $
Start/End of a word \b
After

text ?=<
Before text ?=

Слайд 28

Regular expressions
How many times it should appear (quantification)
Particular number of times {n}
Range {m,

n}
Not less then {m,}
Not more then {,n}
Zero or one time ?
Zero or any number of times *
One or more times +

Слайд 29

Regular expressions
Searching algorithm
Greedy
repeat a quantifier as many times as possible
Lazy
Repeat a

quantifier as little as possible

Слайд 30

Regular expressions
Greedy
Example: “stress” testing and “capacity” testing are not the same
Take

anything that starts from a quote and ends with a quote, and it doesn’t matter what is between the quotes

/”.*/”

He said “anything” – I’ll take “everything”

“stress” testing and “capacity”

Lazy

The shorter the better

“stress” , “capacity”

/”.*?/”

http://javascript.info/tutorial/greedy-and-lazy

Слайд 31

Tools that can help
SoapUI
Check available functions on an endpoint (WADL/WSDL)
List of

all functions
Structure of request/response
Try your requests before using them in JMeter
Developer Tools (Chrome browser)
Compare requests in your tests with requests sent by application
Headers
Content
Cookies

Слайд 32

Tools that can help
SoapUI http://www.soapui.org
Chapters recommended for reading/watching
About SoapUI
Videos
Functional Testing
REST Testing
Getting

started
Installing SoapUI
Your First SoapUI Project
REST Testing
SOAP and WSDL
Operations and Requests
Headers and Attachments
REST
Understanding REST Parameters

Слайд 33

Tools that can help
Chrome Developer Tools https://developer.chrome.com/devtools/docs/network
Network tab is the most

important here
Note! Even if you have been working with Chrome Developer Tools for ages we strongly recommend you to read the tool documentation anyway.

Performance testing

Содержание

Required technical knowledge

User workflow vs Application workflowUserClicksSelectsChecksTypesUploadsDownloadsNavigatesApplicationSends requestReceives responseSends requestReceives responseSends requestReceives sub-responseSends

Client-server application architectureRequestResponseTransactionRequestResponseAsync transactionsub-responsesub-requestsub-responsesub-request

Request structureProtocol/methodHeadersDataAttachments

Response structureProtocol/methodHeadersDataAttachments

HTTP ProtocolMethodsGet – “show me the data that I want”Post –

HTTP ProtocolMethodsGet – “show me the data that I want”Post –

HTTP ProtocolExamples where http methods are used properly:in public web servicesin

HTTP ProtocolHeadersformat – [header name]:[header value]groupsGeneral Headers – must bet present

HTTP ProtocolHeaders (examples)

HTTP ProtocolMessage bodyOptionalContentOverall: any text can be sentIn particular: text that

HTTP ProtocolAttachments Message bodySent in formsKey http headers:Content-Type: multipart/form-dataContent-Disposition: form-dataContent-Type:[text/plan |

HTTP ProtocolMessage body (example)

HTTP ProtocolMessage body (example)2 empty linesRequest headersMessage bodyDelimiter of form fieldsContent

HTTP ProtocolStatus codes1xx InformationalRequest received, continuing process2xx SuccessRequest was received, understood,

HTTP ProtocolStatus codes:We knew it!:200 – everything is OK401 – something

Regular expressions

Regular expressionsRegular expressions are quite easy to learn

Regular expressionsBut doing this by slides is as easy…

Regular expressions…as learning Chinese

Regular expressionsYou will have to learn it by yourself

Regular expressionsBut here is some basic understanding

Regular expressionsWhat to searchWhere to searchHow many times it should appearSearching

Regular expressionsWhat to searchCharacters abc123 use backslash for meta characters! ^$.?*Character classes []Groups ()Alternatives |

Regular expressionsWhere to searchStart/End of text ^ and $Start/End of a word \bAfter

Regular expressionsHow many times it should appear (quantification)Particular number of times {n}Range {m,

Regular expressionsSearching algorithmGreedyrepeat a quantifier as many times as possibleLazyRepeat a

Regular expressionsGreedyExample: “stress” testing and “capacity” testing are not the sameTake

Tools that can helpSoapUICheck available functions on an endpoint (WADL/WSDL)List of

Tools that can helpSoapUI http://www.soapui.orgChapters recommended for reading/watchingAbout SoapUIVideosFunctional TestingREST TestingGetting

Tools that can helpChrome Developer Tools https://developer.chrome.com/devtools/docs/networkNetwork tab is the most

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User workflow vs Application workflow
User
Clicks
Selects
Checks
Types
Uploads
Downloads
Navigates
Application
Sends request
Receives response
Sends request
Receives response
Sends request
Receives sub-response
Sends

Client-server application architecture
Request
Response
Transaction
Request
Response
Async transaction
sub-response
sub-request
sub-response
sub-request

Request structure
Protocol/method
Headers
Data
Attachments

Response structure
Protocol/method
Headers
Data
Attachments

HTTP Protocol
Methods
Get – “show me the data that I want”
Post –

HTTP Protocol
Methods
Get – “show me the data that I want”
Post –

HTTP Protocol
Examples where http methods are used properly:
in public web services
in

HTTP Protocol
Headers
format – [header name]:[header value]
groups
General Headers – must bet present

HTTP Protocol
Headers (examples)

HTTP Protocol
Message body
Optional
Content
Overall: any text can be sent
In particular: text that

HTTP Protocol
Attachments Message body
Sent in forms
Key http headers:
Content-Type: multipart/form-data
Content-Disposition: form-data
Content-Type:[text/plan |

HTTP Protocol
Message body (example)

HTTP Protocol
Message body (example)
2 empty lines
Request headers
Message body
Delimiter of form fields
Content

HTTP Protocol
Status codes
1xx Informational
Request received, continuing process
2xx Success
Request was received, understood,

HTTP Protocol
Status codes:
We knew it!:
200 – everything is OK
401 – something

Regular expressions
Regular expressions are quite easy to learn

Regular expressions
But doing this by slides is as easy…

Regular expressions
…as learning Chinese

Regular expressions
You will have to learn it by yourself

Regular expressions
But here is some basic understanding

Regular expressions
What to search
Where to search
How many times it should appear
Searching

Regular expressions
What to search
Characters abc123
use backslash for meta characters! ^$.?*
Character classes []
Groups ()
Alternatives |

Regular expressions
Where to search
Start/End of text ^ and $
Start/End of a word \b
After

Regular expressions
How many times it should appear (quantification)
Particular number of times {n}
Range {m,

Regular expressions
Searching algorithm
Greedy
repeat a quantifier as many times as possible
Lazy
Repeat a

Regular expressions
Greedy
Example: “stress” testing and “capacity” testing are not the same
Take

Tools that can help
SoapUI
Check available functions on an endpoint (WADL/WSDL)
List of

Tools that can help
SoapUI http://www.soapui.org
Chapters recommended for reading/watching
About SoapUI
Videos
Functional Testing
REST Testing
Getting

Tools that can help
Chrome Developer Tools https://developer.chrome.com/devtools/docs/network
Network tab is the most