How to use assertions for multiple scenario in gatling? - karate

Question

Right Now I am trying to do performance testing of all my api's.I already created one feature file having different scenarios(every scenario having different tag).Now I want to do use assertions on mean ResponseTime with different scenarios different assertions.
val Performance1 = scenario("Performance1").exec(karateFeature("classpath:mock/Testing1.feature#Performance"))
val Performance2 = scenario("Performance2").exec(karateFeature("classpath:mock/Testing2.feature#v3ContentMeta"))
val v4SearchTest = scenario("SearchTest").
group("SearchTesting") { exec(karateFeature("classpath:mock/Testing1.feature#Performance"))
}
setUp(
(Performance1.inject(rampUsers(10) over (5 seconds)).protocols(protocol)),
Performance2.inject(rampUsers(10) over (5 seconds)).protocols(protocol)
).assertions(details("SearchTesting").responseTime.mean.lte(680))```

Answer 1

You can add Gatling assertions as Global asserts. This will perfectly work with Karate Gatling. This is a sample scenario which we tried
setUp(
firstScenario.inject(
nothingFor(5 seconds), // Pause for a given duration
atOnceUsers(10), //Inject 10 Users at once
constantUsersPerSec(10) during (20 seconds), // Induce 10 requests on every second and continues this process for 30 seconds
rampUsers(10) over (10 seconds) // Linear Ramp up of the user
).protocols(protocol),
secondScenario.inject(
nothingFor(10 seconds), // Pause for a given duration
atOnceUsers(20), // Inject 10 Users at once
constantUsersPerSec(10) during (10 seconds), // Induce 10 requests on every second and continues this process for 40 seconds
).protocols(protocol),
thirdScenario.inject(
nothingFor(15 seconds), // Pause for a given duration
rampUsers(20) over (1 minute) // Linear Ramp up of the user
).protocols(protocol),
fourthScenario.inject(
nothingFor(20 seconds), // Pause for a given duration
constantUsersPerSec(10) during (20 seconds), // Induce 10 requests on every second and continues this process for 20 seconds
).protocols(protocol)
).assertions(
global.responseTime.max.between(100, 5000),
global.failedRequests.percent.is(0),
global.successfulRequests.percent.gt(90)
).maxDuration(10 minutes) // Configuring the maximum duration of your simulation. It is useful when we need to bound the duration the simulation when we can’t predict it.
The global asserts will be displayed as a separate section in the Gatling reports. This is a useful feature of Karate Gatling. Test specific failures will also get displayed in the report of Karate Gatling. For example, if this is your scenario
Scenario: My First Sample Scenario
Given url endpointUrl
And header karate-name = 'Feature 1_Scenario3'
When method get
Then status 200
And if the status code is not responded as 200, this also gets recorded in the Karate Gatling reports.
Asserts in Gatling: https://gatling.io/docs/current/general/assertions/#scope