I was able to get the SBT plugin working, mostly following the example.
I understand by the documentation that I can use Gatling as a testing framework, without installing the Gatling server bundle. This seems like a great option. I’ve created a basic simulation that test via the Gatling / test command.
class BasicSimulation extends Simulation {
val httpProtocol = http
.baseUrl("https://computer-database.gatling.io") // Here is the root for all relative URLs
.acceptHeader("text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8") // Here are the common headers
.acceptEncodingHeader("gzip, deflate")
.acceptLanguageHeader("en-US,en;q=0.5")
.userAgentHeader("Mozilla/5.0 (Macintosh; Intel Mac OS X 10.8; rv:16.0) Gecko/20100101 Firefox/16.0")
val scn = scenario("Simple Scenario Example") // A scenario is a chain of requests and pauses
.exec(
http("Step 1 - Root Page")
.get("/")
)
.pause(7) // Note that Gatling has recorder real time pauses
setUp(scn.inject(atOnceUsers(10)).protocols(httpProtocol))
}
The above case works, so I’m moving to another use case.
Now, in my second case, when I run a simulation, it fails to make a successful request.
object AuthRequests {
private val payload =
s"""{
| "refresh_token": "${Configuration.apiKey}"
|}
""".stripMargin
val getAccessToken = {
val tokenRequest = http("Get access token")
.post("/v1/tokens/refresh")
.body(StringBody(payload))
.asJson
.check(status.is(200)) // make sure it worked
.check(bodyString.saveAs("responseBody"))
.check(jsonPath("$.access_token").saveAs("token")) // save the response value to the same named key
exec(tokenRequest) exec { session =>
println(s"ResonseBody: ${session("responseBody").as[String]}")
println(s"Saved session access_token: ${session("token").as[String]}")
session
}
}
}
I get a timeout, and I’m unable to debug why. I am however able to hit the server from cURL and get a successful response. I don’t think my Gatling script is making an actual request, because I have logging on the server for that endpoint and it only report the hit from cURL. I built out a little simulation runner, which allows be to set breakpoints, but there is no easy way to inspect the actual request/response lifecycle. I’d like to see the actual request, e.g. headers, host, etc. Is there an easy way to do that? I’ve tried setting up a logback.xml file in the test resources folder.
<?xml version="1.0" encoding="UTF-8"?>
<configuration>
<appender name="CONSOLE" class="ch.qos.logback.core.ConsoleAppender">
<encoder>
<pattern>%d{HH:mm:ss.SSS} [%-5level] %logger{15} - %msg%n%rEx</pattern>
</encoder>
<immediateFlush>true</immediateFlush>
</appender>
<!-- uncomment and set to DEBUG to log all failing HTTP requests -->
<!-- uncomment and set to TRACE to log all HTTP requests -->
<logger name="io.gatling.http.engine.response" level="TRACE">
<appender-ref ref="CONSOLE" />
</logger>
<logger name="io.gatling.http.ahc" level="TRACE">
<appender-ref ref="CONSOLE" />
</logger>
<logger name="io.gatling.http.response" level="TRACE">
<appender-ref ref="CONSOLE" />
</logger>
<root level="TRACE">
<appender-ref ref="CONSOLE" />
</root>
</configuration>
That does not seem to work.
I will also note, that the simulation test seems to run for 60s, with an update every 5 seconds. I don’t know why that is in this case… I haven’t setup any kind of loop.
================================================================================
2023-11-26 10:54:30 5s elapsed
---- Requests ------------------------------------------------------------------
> Global (OK=0 KO=0 )
---- List Projects -------------------------------------------------------------
[--------------------------------------------------------------------------] 0%
waiting: 0 / active: 1 / done: 0
================================================================================
and at the end is see an error:
11:20:39.518 [gatling-1-2] ERROR io.gatling.core.action.builder.SessionHookBuilder$$anon$1 - 'hook-3' crashed with 'j.u.NoSuchElementException: No attribute named 'responseBody' is defined', forwarding to the next one