feat(Gatlin): Spike Test

Added a spike test.

build.gradle

@@ -22,7 +22,10 @@ tasks.withType(io.gatling.gradle.GatlingRunTask) {
         "-Dgatling.authToken=${findProperty('authToken') ?: System.getenv('GATLING_AUTH_TOKEN') ?: ''}",
         "-Dhealthz.path=${findProperty('healthzPath') ?: '/health'}",
         "-DmaxUsers=${findProperty('maxUsers') ?: '10'}",
-        "-DrampDuration=${findProperty('rampDuration') ?: '60'}"
+        "-DrampDuration=${findProperty('rampDuration') ?: '60'}",
+        "-DbaselineUsers=${findProperty('baselineUsers') ?: '2'}",
+        "-DbaselineDuration=${findProperty('baselineDuration') ?: '20'}",
+        "-DspikeUsers=${findProperty('spikeUsers') ?: '15'}"
     ]
 }
 

src/gatling/scala/simulations/SpikeTestSimulation.scala

@@ -0,0 +1,26 @@
+package simulations
+
+import base.BaseSimulation
+import endpoints.BoardEndpoints
+import io.gatling.core.Predef._
+
+import scala.concurrent.duration._
+
+class SpikeTestSimulation extends BaseSimulation {
+
+  private val baselineUsers    = sys.props.getOrElse("baselineUsers", "2").toInt
+  private val baselineDuration = sys.props.getOrElse("baselineDuration", "20").toInt
+  private val spikeUsers       = sys.props.getOrElse("spikeUsers", "15").toInt
+
+  setUp(
+    BoardEndpoints.all.map { endpoint =>
+      scenarioFromEndpoint(endpoint)
+        .inject(
+          constantUsersPerSec(baselineUsers).during(baselineDuration.seconds),
+          atOnceUsers(spikeUsers),
+          nothingFor(5.seconds),
+          constantUsersPerSec(baselineUsers).during(baselineDuration.seconds)
+        )
+    }: _*
+  ).protocols(httpProtocol)
+}