Gatling Step by Step Masterclass | Part 3

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00:00 Intro
01:24 Simulation Script
02:48 Parts of Simulation Script
10:18 How to create isolated resuable modules
16:55 Divide scenario into smaller modules
23:37 Define scenario using reusable modules
32:56 Virtual users setup
42:34 Next steps
What is Simulation in Gatling
Simulation is the description of the load test written in script
Can be written in Java, Scala, Kotlin
Consists of scenarios, http configuration, user load etc
Parts of Gatling Simulation Script
1. Package (optional)
2. Imports (required)
3. Class declaration (extends Simulation)
4. Common configuration for all requests
5. Base URL (prepended to all relative urls)
6. Common HTTP headers (will be sent with all requests)
7. Scenario definition
8. HTTP requests (this name will be shown in reports)
9. Request url and other details
10. Pause / Think Time
11. Scenario setup simulation (users) - setUp method is mandatory
12. Attaching http configuration declared above
Isolate Modules
Divide Scenario into Isolated Modules / Processes
Step 1 - Record / Create a Gatling Simulation script
Step 2 - Give names to the requests
Step 3 - Divide scenario into smaller modules
Step 4 - Define scenario using the reusable modules/processes
Step 5 - Run and check Reports
Configure virtual users with ramp up
Step 1 - Define multiple sets of users and assign modules
Step 2 - Add ramp up time with multiple sets of users
Virtual Users
VU Injection Profile
What is Load Simulation Or Injection Profile
Adding virtual users to run the test
Ramp up, Ramp down of virtual users
Duration of the test
Design workload models
In Gatling Script, injection profile of users is created using
injectOpen() and injectClosed() methods
Or
just inject() method in Scala
nothingFor(5)
atOnceUsers(5)
rampUsers(20) during(2)
rampUsersPerSec(1) to (20) during(5)
constantUsersPerSec(10) during(10)
maxduration()
Closed workload Model - we can control the number of concurrent users
Open workload Model - we cannot control the number of concurrent users (most websites behave this way)
Reference - gatling.io/docs/gatling/refer...
Document - tinyurl.com/GatlingDoc1-Ragha...
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Raghav Pal
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[@xXMrThomasXx]

Good part, thx. Time to part4 :)

[@RaghavPal]

Glad to know this is helping.. keep learning

[@mohitpanwar1596]

Hello sir

[@RaghavPal]

Hello Mohit