chore: add integration tests (#45)

* integration/buildcontainer: copy from grafana/sm-k6-runner

https://github.com/grafana/sm-k6-runner/blob/1697fc60a0d032fb098b9df5d3a708cd8b39a547/internal/integration/integration_test.go

* integration: add integration test for crocochrome

* renovate: update version of k6 used for integration tests

* chore: change skipping logic to use -short instead of env var

* chore: typos, renaming

* chore: integration: call CleanupContainer unconditionally

.github/renovate.json5

@@ -6,6 +6,20 @@
     "github>grafana/sm-renovate//presets/go.json5",
   ],
   "commitMessagePrefix": "",
+  "customManagers": [
+    {
+      // Update k6 image used for integration tests only.
+      "customType": "regex",
+      "depNameTemplate": "grafana/k6",
+      "datasourceTemplate": "docker",
+      "fileMatch": [
+        "^integration/integration_test.go$",
+      ],
+      "matchStrings": [
+        "grafana/k6:(?<currentValue>[\\w.-]+)",
+      ],
+    },
+  ],
   "packageRules": [
     {
       // The default "docker" versioning will try to restrict upgrades to versions that do not change everything after

go.mod

@@ -3,19 +3,70 @@ module github.com/grafana/crocochrome
 go 1.23
 
 require (
+	github.com/docker/docker v27.5.1+incompatible
 	github.com/koding/websocketproxy v0.0.0-20181220232114-7ed82d81a28c
 	github.com/prometheus/client_golang v1.20.5
+	github.com/testcontainers/testcontainers-go v0.35.0
 )
 
 require (
+	dario.cat/mergo v1.0.0 // indirect
+	github.com/AdaLogics/go-fuzz-headers v0.0.0-20240806141605-e8a1dd7889d6 // indirect
+	github.com/Azure/go-ansiterm v0.0.0-20210617225240-d185dfc1b5a1 // indirect
+	github.com/Microsoft/go-winio v0.6.2 // indirect
 	github.com/beorn7/perks v1.0.1 // indirect
+	github.com/cenkalti/backoff/v4 v4.3.0 // indirect
 	github.com/cespare/xxhash/v2 v2.3.0 // indirect
+	github.com/containerd/log v0.1.0 // indirect
+	github.com/containerd/platforms v0.2.1 // indirect
+	github.com/cpuguy83/dockercfg v0.3.2 // indirect
+	github.com/davecgh/go-spew v1.1.1 // indirect
+	github.com/distribution/reference v0.6.0 // indirect
+	github.com/docker/go-connections v0.5.0 // indirect
+	github.com/docker/go-units v0.5.0 // indirect
+	github.com/felixge/httpsnoop v1.0.4 // indirect
+	github.com/go-logr/logr v1.4.2 // indirect
+	github.com/go-logr/stdr v1.2.2 // indirect
+	github.com/go-ole/go-ole v1.2.6 // indirect
+	github.com/gogo/protobuf v1.3.2 // indirect
+	github.com/google/uuid v1.6.0 // indirect
 	github.com/gorilla/websocket v1.5.3 // indirect
 	github.com/klauspost/compress v1.17.9 // indirect
+	github.com/lufia/plan9stats v0.0.0-20211012122336-39d0f177ccd0 // indirect
+	github.com/magiconair/properties v1.8.7 // indirect
+	github.com/moby/docker-image-spec v1.3.1 // indirect
+	github.com/moby/patternmatcher v0.6.0 // indirect
+	github.com/moby/sys/sequential v0.5.0 // indirect
+	github.com/moby/sys/user v0.1.0 // indirect
+	github.com/moby/sys/userns v0.1.0 // indirect
+	github.com/moby/term v0.5.0 // indirect
+	github.com/morikuni/aec v1.0.0 // indirect
 	github.com/munnerz/goautoneg v0.0.0-20191010083416-a7dc8b61c822 // indirect
+	github.com/opencontainers/go-digest v1.0.0 // indirect
+	github.com/opencontainers/image-spec v1.1.0 // indirect
+	github.com/pkg/errors v0.9.1 // indirect
+	github.com/pmezard/go-difflib v1.0.0 // indirect
+	github.com/power-devops/perfstat v0.0.0-20210106213030-5aafc221ea8c // indirect
 	github.com/prometheus/client_model v0.6.1 // indirect
 	github.com/prometheus/common v0.62.0 // indirect
 	github.com/prometheus/procfs v0.15.1 // indirect
-	golang.org/x/sys v0.28.0 // indirect
-	google.golang.org/protobuf v1.36.1 // indirect
+	github.com/shirou/gopsutil/v3 v3.23.12 // indirect
+	github.com/shoenig/go-m1cpu v0.1.6 // indirect
+	github.com/sirupsen/logrus v1.9.3 // indirect
+	github.com/stretchr/testify v1.10.0 // indirect
+	github.com/tklauser/go-sysconf v0.3.12 // indirect
+	github.com/tklauser/numcpus v0.6.1 // indirect
+	github.com/yusufpapurcu/wmi v1.2.3 // indirect
+	go.opentelemetry.io/auto/sdk v1.1.0 // indirect
+	go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp v0.49.0 // indirect
+	go.opentelemetry.io/otel v1.34.0 // indirect
+	go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracehttp v1.34.0 // indirect
+	go.opentelemetry.io/otel/metric v1.34.0 // indirect
+	go.opentelemetry.io/otel/sdk v1.34.0 // indirect
+	go.opentelemetry.io/otel/trace v1.34.0 // indirect
+	golang.org/x/crypto v0.31.0 // indirect
+	golang.org/x/sys v0.29.0 // indirect
+	golang.org/x/time v0.9.0 // indirect
+	google.golang.org/protobuf v1.36.3 // indirect
+	gopkg.in/yaml.v3 v3.0.1 // indirect
 )