diff --git a/pkg/scalers/selenium_grid_scaler.go b/pkg/scalers/selenium_grid_scaler.go
index 885a610f43a..44b758ebe77 100644
--- a/pkg/scalers/selenium_grid_scaler.go
+++ b/pkg/scalers/selenium_grid_scaler.go
@@ -27,13 +27,14 @@ type seleniumGridScaler struct {
 }
 
 type seleniumGridScalerMetadata struct {
-	url                string
-	browserName        string
-	sessionBrowserName string
-	targetValue        int64
-	browserVersion     string
-	unsafeSsl          bool
-	scalerIndex        int
+	url                 string
+	browserName         string
+	sessionBrowserName  string
+	targetValue         int64
+	activationThreshold int64
+	browserVersion      string
+	unsafeSsl           bool
+	scalerIndex         int
 }
 
 type seleniumResponse struct {
@@ -116,6 +117,15 @@ func parseSeleniumGridScalerMetadata(config *ScalerConfig) (*seleniumGridScalerM
 		meta.sessionBrowserName = meta.browserName
 	}
 
+	meta.activationThreshold = 0
+	if val, ok := config.TriggerMetadata["activationThreshold"]; ok {
+		activationThreshold, err := strconv.ParseInt(val, 10, 64)
+		if err != nil {
+			return nil, fmt.Errorf("error parsing unsafeSsl: %s", err)
+		}
+		meta.activationThreshold = activationThreshold
+	}
+
 	if val, ok := config.TriggerMetadata["browserVersion"]; ok && val != "" {
 		meta.browserVersion = val
 	} else {
@@ -170,7 +180,7 @@ func (s *seleniumGridScaler) IsActive(ctx context.Context) (bool, error) {
 		return false, err
 	}
 
-	return v > 0, nil
+	return v > s.metadata.activationThreshold, nil
 }
 
 func (s *seleniumGridScaler) getSessionsCount(ctx context.Context) (int64, error) {
diff --git a/pkg/scalers/selenium_grid_scaler_test.go b/pkg/scalers/selenium_grid_scaler_test.go
index d960cc1224d..869458a9d43 100644
--- a/pkg/scalers/selenium_grid_scaler_test.go
+++ b/pkg/scalers/selenium_grid_scaler_test.go
@@ -424,27 +424,44 @@ func Test_parseSeleniumGridScalerMetadata(t *testing.T) {
 			},
 		},
 		{
-			name: "valid url, browsername and unsafeSsl should return metadata",
+			name: "valid url, browsername, unsafeSsl and activationThreshold should return metadata",
 			args: args{
 				config: &ScalerConfig{
 					TriggerMetadata: map[string]string{
-						"url":            "http://selenium-hub:4444/graphql",
-						"browserName":    "chrome",
-						"browserVersion": "91.0",
-						"unsafeSsl":      "true",
+						"url":                 "http://selenium-hub:4444/graphql",
+						"browserName":         "chrome",
+						"browserVersion":      "91.0",
+						"unsafeSsl":           "true",
+						"activationThreshold": "10",
 					},
 				},
 			},
 			wantErr: false,
 			want: &seleniumGridScalerMetadata{
-				url:                "http://selenium-hub:4444/graphql",
-				browserName:        "chrome",
-				sessionBrowserName: "chrome",
-				targetValue:        1,
-				browserVersion:     "91.0",
-				unsafeSsl:          true,
+				url:                 "http://selenium-hub:4444/graphql",
+				browserName:         "chrome",
+				sessionBrowserName:  "chrome",
+				targetValue:         1,
+				activationThreshold: 10,
+				browserVersion:      "91.0",
+				unsafeSsl:           true,
 			},
 		},
+		{
+			name: "valid url, browsername and unsafeSsl but invalid activationThreshold should throw an error",
+			args: args{
+				config: &ScalerConfig{
+					TriggerMetadata: map[string]string{
+						"url":                 "http://selenium-hub:4444/graphql",
+						"browserName":         "chrome",
+						"browserVersion":      "91.0",
+						"unsafeSsl":           "true",
+						"activationThreshold": "AA",
+					},
+				},
+			},
+			wantErr: true,
+		},
 	}
 	for _, tt := range tests {
 		t.Run(tt.name, func(t *testing.T) {
diff --git a/tests/scalers/selenium-grid.test.ts b/tests/scalers/selenium-grid.test.ts
deleted file mode 100644
index 16f602801a1..00000000000
--- a/tests/scalers/selenium-grid.test.ts
+++ /dev/null
@@ -1,683 +0,0 @@
-import test from 'ava'
-import * as sh from 'shelljs'
-import * as tmp from 'tmp'
-import * as fs from 'fs'
-import { createNamespace } from './helpers';
-
-const seleniumGridNamespace = 'selenium-grid';
-const seleniumGridHostName = `selenium-hub.${seleniumGridNamespace}`;
-const seleniumGridPort = "4444";
-const seleniumGridGraphQLUrl = `http://${seleniumGridHostName}:${seleniumGridPort}/graphql`;
-const seleniumGridTestName = 'selenium-random-tests';
-
-test.before(t => {
-  createNamespace(seleniumGridNamespace)
-
-  const seleniumGridDeployTmpFile = tmp.fileSync();
-  fs.writeFileSync(seleniumGridDeployTmpFile.name, seleniumGridYaml.replace(/{{NAMESPACE}}/g, seleniumGridNamespace));
-
-  t.is(0, sh.exec(`kubectl apply --namespace ${seleniumGridNamespace} -f ${seleniumGridDeployTmpFile.name}`).code, 'creating a Selenium Grid deployment should work.')
-
-  let seleniumHubReplicaCount = '0';
-
-  for (let i = 0; i < 60; i++) {
-    seleniumHubReplicaCount = sh.exec(`kubectl get deploy/selenium-hub -n ${seleniumGridNamespace} -o jsonpath='{.spec.replicas}'`).stdout
-    if (seleniumHubReplicaCount == '1') {
-      break;
-    }
-    console.log('Waiting for selenium hub to be ready');
-    sh.exec('sleep 5s')
-  }
-  t.is('1', seleniumHubReplicaCount, 'Selenium Hub is not in a ready state')
-});
-
-test.serial('should have 0 nodes at start', t => {
-  const scaledObjectDeployTmpFile = tmp.fileSync();
-  fs.writeFileSync(scaledObjectDeployTmpFile.name, scaledObjectYaml.replace(/{{NAMESPACE}}/g, seleniumGridNamespace).replace(/{{SELENIUM_GRID_GRAPHQL_URL}}/g, seleniumGridGraphQLUrl));
-
-  t.is(0, sh.exec(`kubectl apply --namespace ${seleniumGridNamespace} -f ${scaledObjectDeployTmpFile.name}`).code, 'creating a Scaled Object CRD should work.')
-
-  let seleniumChromeNodeReplicaCount = '1';
-  let seleniumFireFoxReplicaCount = '1';
-  let seleniumEdgeReplicaCount = '1';
-  for (let i = 0; i < 60; i++) {
-    seleniumChromeNodeReplicaCount = sh.exec(`kubectl get deploy/selenium-chrome-node -n ${seleniumGridNamespace} -o jsonpath='{.spec.replicas}'`).stdout
-    seleniumFireFoxReplicaCount = sh.exec(`kubectl get deploy/selenium-firefox-node -n ${seleniumGridNamespace} -o jsonpath='{.spec.replicas}'`).stdout
-    seleniumEdgeReplicaCount = sh.exec(`kubectl get deploy/selenium-edge-node -n ${seleniumGridNamespace} -o jsonpath='{.spec.replicas}'`).stdout
-    if (seleniumChromeNodeReplicaCount == '0' && seleniumFireFoxReplicaCount == '0' && seleniumEdgeReplicaCount == '0') {
-      break;
-    }
-    console.log('Waiting for chrome, firefox, and edge to scale down to 0 pods')
-    sh.exec('sleep 10s')
-  }
-
-  t.is('0', seleniumChromeNodeReplicaCount, 'Selenium Chrome Node did not scale down to 0 pods')
-  t.is('0', seleniumFireFoxReplicaCount, 'Selenium Firefox Node did not scale down to 0 pods')
-  t.is('0', seleniumEdgeReplicaCount, 'Selenium Edge Node did not scale down to 0 pods')
-});
-
-test.serial('should create one chrome, firefox, and edge node', t => {
-  const seleniumGridTestDeployTmpFile = tmp.fileSync();
-  fs.writeFileSync(
-    seleniumGridTestDeployTmpFile.name,
-    seleniumGridTestsYaml
-      .replace(/{{JOB_NAME}}/g, seleniumGridTestName)
-      .replace(/{{CONTAINER_NAME}}/g, seleniumGridTestName)
-      .replace(/{{HOST_NAME}}/g, seleniumGridHostName)
-      .replace(/{{PORT}}/g, seleniumGridPort)
-      .replace(/{{WITH_VERSION}}/g, "false")
-  );
-
-  t.is(0, sh.exec(`kubectl apply --namespace ${seleniumGridNamespace} -f ${seleniumGridTestDeployTmpFile.name}`).code, 'creating a Selenium Grid Tests deployment should work.');
-
-  let seleniumChromeNodeReplicaCount = '0';
-  let seleniumFireFoxReplicaCount = '0';
-  let seleniumEdgeReplicaCount = '0';
-  for (let i = 0; i < 120; i++) {
-    seleniumChromeNodeReplicaCount = seleniumChromeNodeReplicaCount != '1' ? sh.exec(`kubectl get deploy/selenium-chrome-node -n ${seleniumGridNamespace} -o jsonpath='{.spec.replicas}'`).stdout : seleniumChromeNodeReplicaCount;
-    seleniumFireFoxReplicaCount = seleniumFireFoxReplicaCount != '1' ? sh.exec(`kubectl get deploy/selenium-firefox-node -n ${seleniumGridNamespace} -o jsonpath='{.spec.replicas}'`).stdout : seleniumFireFoxReplicaCount;
-    seleniumEdgeReplicaCount = seleniumEdgeReplicaCount != '1' ? sh.exec(`kubectl get deploy/selenium-edge-node -n ${seleniumGridNamespace} -o jsonpath='{.spec.replicas}'`).stdout : seleniumEdgeReplicaCount;
-    if (seleniumChromeNodeReplicaCount == '1' && seleniumFireFoxReplicaCount == '1' && seleniumEdgeReplicaCount == '1') {
-      break;
-    }
-    console.log('Waiting for chrome, firefox, and edge to scale up to 1 pod');
-    sh.exec('sleep 2s')
-  }
-
-  t.is('1', seleniumChromeNodeReplicaCount, 'Selenium Chrome Node did not scale up to 1 pod')
-  t.is('1', seleniumFireFoxReplicaCount, 'Selenium Firefox Node did not scale up to 1 pod')
-  t.is('1', seleniumEdgeReplicaCount, 'Selenium Edge Node did not scale up to 1 pod')
-
-  // wait for selenium grid tests to complete
-  for (let i = 0; i < 120; i++) {
-    seleniumChromeNodeReplicaCount = seleniumChromeNodeReplicaCount != '0' ? sh.exec(`kubectl get deploy/selenium-chrome-node -n ${seleniumGridNamespace} -o jsonpath='{.spec.replicas}'`).stdout : seleniumChromeNodeReplicaCount;
-    seleniumFireFoxReplicaCount = seleniumFireFoxReplicaCount != '0' ? sh.exec(`kubectl get deploy/selenium-firefox-node -n ${seleniumGridNamespace} -o jsonpath='{.spec.replicas}'`).stdout : seleniumFireFoxReplicaCount;
-    seleniumEdgeReplicaCount = seleniumEdgeReplicaCount != '0' ? sh.exec(`kubectl get deploy/selenium-edge-node -n ${seleniumGridNamespace} -o jsonpath='{.spec.replicas}'`).stdout : seleniumEdgeReplicaCount;
-    if (seleniumChromeNodeReplicaCount == '0' && seleniumFireFoxReplicaCount == '0' && seleniumEdgeReplicaCount == '0') {
-      break;
-    }
-    console.log('Waiting for chrome, firefox, and edge to scale up to 0 pods');
-    sh.exec('sleep 2s')
-  }
-
-  sh.exec(`kubectl delete job/${seleniumGridTestName} --namespace ${seleniumGridNamespace}`)
-});
-
-test.serial('should scale down chrome, firefox, and edge nodes to 0', t => {
-  let seleniumChromeNodeReplicaCount = '1';
-  let seleniumFireFoxReplicaCount = '1';
-  let seleniumEdgeReplicaCount = '1';
-  for (let i = 0; i < 120; i++) {
-    seleniumChromeNodeReplicaCount = sh.exec(`kubectl get deploy/selenium-chrome-node -n ${seleniumGridNamespace} -o jsonpath='{.spec.replicas}'`).stdout;
-    seleniumFireFoxReplicaCount = sh.exec(`kubectl get deploy/selenium-firefox-node -n ${seleniumGridNamespace} -o jsonpath='{.spec.replicas}'`).stdout;
-    seleniumEdgeReplicaCount = sh.exec(`kubectl get deploy/selenium-edge-node -n ${seleniumGridNamespace} -o jsonpath='{.spec.replicas}'`).stdout;
-    if (seleniumChromeNodeReplicaCount == '0' && seleniumFireFoxReplicaCount == '0' && seleniumEdgeReplicaCount == '0') {
-      break;
-    }
-    console.log('Waiting for chrome, firefox,a nd edge to scale down to 0 pods');
-    sh.exec('sleep 2s')
-  }
-
-  t.is('0', seleniumChromeNodeReplicaCount, 'Selenium Chrome Node did not scale down to 0 pod')
-  t.is('0', seleniumFireFoxReplicaCount, 'Selenium Firefox Node did not scale down to 0 pod')
-  t.is('0', seleniumEdgeReplicaCount, 'Selenium Edge Node did not scale down to 0 pod')
-});
-
-test.serial('should create two chrome, one firefox, and one edge nodes', t => {
-  const chrome91DeployTmpFile = tmp.fileSync();
-  fs.writeFileSync(chrome91DeployTmpFile.name, chrome91Yaml.replace(/{{NAMESPACE}}/g, seleniumGridNamespace).replace(/{{SELENIUM_GRID_GRAPHQL_URL}}/g, seleniumGridGraphQLUrl));
-
-  t.is(0, sh.exec(`kubectl apply --namespace ${seleniumGridNamespace} -f ${chrome91DeployTmpFile.name}`).code, 'creating Chrome 91 node should work.')
-
-  let seleniumChrome91NodeReplicaCount = '1';
-  for (let i = 0; i < 120; i++) {
-    seleniumChrome91NodeReplicaCount = sh.exec(`kubectl get deploy/selenium-chrome-node-91 -n ${seleniumGridNamespace} -o jsonpath='{.spec.replicas}'`).stdout
-    if (seleniumChrome91NodeReplicaCount == '0') {
-      break;
-    }
-    console.log('Waiting for chrome 91 to scale down to 0 pods')
-    sh.exec('sleep 2s')
-  }
-
-  const seleniumGridTestDeployTmpFile = tmp.fileSync();
-  fs.writeFileSync(
-    seleniumGridTestDeployTmpFile.name,
-    seleniumGridTestsYaml
-      .replace(/{{JOB_NAME}}/g, seleniumGridTestName)
-      .replace(/{{CONTAINER_NAME}}/g, seleniumGridTestName)
-      .replace(/{{HOST_NAME}}/g, seleniumGridHostName)
-      .replace(/{{PORT}}/g, seleniumGridPort)
-      .replace(/{{WITH_VERSION}}/g, "true")
-  );
-
-  t.is(0, sh.exec(`kubectl apply --namespace ${seleniumGridNamespace} -f ${seleniumGridTestDeployTmpFile.name}`).code, 'creating a Selenium Grid Tests deployment should work.');
-
-  let seleniumChromeNodeReplicaCount = '0';
-  let seleniumFireFoxReplicaCount = '0';
-  let seleniumEdgeReplicaCount = '0';
-  seleniumChrome91NodeReplicaCount = '0';
-  for (let i = 0; i < 120; i++) {
-    seleniumChromeNodeReplicaCount = seleniumChromeNodeReplicaCount != '1' ? sh.exec(`kubectl get deploy/selenium-chrome-node -n ${seleniumGridNamespace} -o jsonpath='{.spec.replicas}'`).stdout : seleniumChromeNodeReplicaCount;
-    seleniumFireFoxReplicaCount = seleniumFireFoxReplicaCount != '1' ? sh.exec(`kubectl get deploy/selenium-firefox-node -n ${seleniumGridNamespace} -o jsonpath='{.spec.replicas}'`).stdout : seleniumFireFoxReplicaCount;
-    seleniumEdgeReplicaCount = seleniumEdgeReplicaCount != '1' ? sh.exec(`kubectl get deploy/selenium-edge-node -n ${seleniumGridNamespace} -o jsonpath='{.spec.replicas}'`).stdout : seleniumEdgeReplicaCount;
-    seleniumChrome91NodeReplicaCount = seleniumChrome91NodeReplicaCount != '1' ? sh.exec(`kubectl get deploy/selenium-chrome-node-91 -n ${seleniumGridNamespace} -o jsonpath='{.spec.replicas}'`).stdout : seleniumChrome91NodeReplicaCount;
-    if (seleniumChromeNodeReplicaCount == '1' && seleniumFireFoxReplicaCount == '1' && seleniumEdgeReplicaCount == '1' && seleniumChrome91NodeReplicaCount == '1') {
-      break;
-    }
-    console.log('Waiting for chrome to scale up 2 pods, firefox to 1 pod, and edge to 1 pod');
-    sh.exec('sleep 2s')
-  }
-
-  sh.exec(`kubectl delete job/${seleniumGridTestName} --namespace ${seleniumGridNamespace}`)
-
-  t.is('1', seleniumChromeNodeReplicaCount, 'Selenium Chrome Node did not scale up to 1 pod')
-  t.is('1', seleniumChrome91NodeReplicaCount, 'Selenium Chrome 91 Node did not scale up to 1 pod')
-  t.is('1', seleniumFireFoxReplicaCount, 'Selenium Firefox Node did not scale up to 1 pod')
-  t.is('1', seleniumEdgeReplicaCount, 'Selenium Edge Node did not scale up to 1 pod')
-});
-
-test.after.always.cb('clean up prometheus deployment', t => {
-  let resources = [
-    'scaledobject.keda.sh/selenium-grid-chrome-scaledobject',
-    'scaledobject.keda.sh/selenium-grid-firefox-scaledobject',
-    'scaledobject.keda.sh/selenium-grid-edge-scaledobject',
-    'service/selenium-chrome-node',
-    'deployment.apps/selenium-chrome-node',
-    'service/selenium-firefox-node',
-    'deployment.apps/selenium-firefox-node',
-    'service/selenium-edge-node',
-    'deployment.apps/selenium-edge-node',
-    'service/selenium-hub',
-    'deployment.apps/selenium-hub',
-    `job/${seleniumGridTestName}`,
-    'config/selenium-event-bus-config'
-  ]
-
-  for (const resource of resources) {
-    sh.exec(`kubectl delete ${resource} --namespace ${seleniumGridNamespace}`)
-  }
-  sh.exec(`kubectl delete namespace ${seleniumGridNamespace}`)
-
-  t.end()
-});
-
-const seleniumGridYaml = `---
-# Source: selenium-grid/templates/event-bus-configmap.yaml
-apiVersion: v1
-kind: ConfigMap
-metadata:
-  name: selenium-event-bus-config
-  namespace: {{NAMESPACE}}
-  labels:
-    app.kubernetes.io/managed-by: helm
-    app.kubernetes.io/instance: selenium-hpa
-    app.kubernetes.io/version: 4.0.0-beta-1-prerelease-20210114
-    app.kubernetes.io/component: selenium-grid-4.0.0-beta-1-prerelease-20210114
-    helm.sh/chart: selenium-grid-0.2.0
-data:
-  SE_EVENT_BUS_HOST: selenium-hub
-  SE_EVENT_BUS_PUBLISH_PORT: "4442"
-  SE_EVENT_BUS_SUBSCRIBE_PORT: "4443"
----
-# Source: selenium-grid/templates/chrome-node-service.yaml
-apiVersion: v1
-kind: Service
-metadata:
-  name: selenium-chrome-node
-  namespace: {{NAMESPACE}}
-  labels:
-    name: selenium-chrome-node
-    app.kubernetes.io/managed-by: helm
-    app.kubernetes.io/instance: selenium-hpa
-    app.kubernetes.io/version: 4.0.0-beta-1-prerelease-20210114
-    app.kubernetes.io/component: selenium-grid-4.0.0-beta-1-prerelease-20210114
-    helm.sh/chart: selenium-grid-0.2.0
-spec:
-  type: ClusterIP
-  selector:
-    app: selenium-chrome-node
-  ports:
-    - name: tcp-chrome
-      protocol: TCP
-      port: 6900
-      targetPort: 5900
----
-# Source: selenium-grid/templates/firefox-node-service.yaml
-apiVersion: v1
-kind: Service
-metadata:
-  name: selenium-firefox-node
-  namespace: {{NAMESPACE}}
-  labels:
-    name: selenium-firefox-node
-    app.kubernetes.io/managed-by: helm
-    app.kubernetes.io/instance: selenium-hpa
-    app.kubernetes.io/version: 4.0.0-beta-1-prerelease-20210114
-    app.kubernetes.io/component: selenium-grid-4.0.0-beta-1-prerelease-20210114
-    helm.sh/chart: selenium-grid-0.2.0
-spec:
-  type: ClusterIP
-  selector:
-    app: selenium-firefox-node
-  ports:
-    - name: tcp-firefox
-      protocol: TCP
-      port: 6900
-      targetPort: 5900
----
-apiVersion: v1
-kind: Service
-metadata:
-  name: selenium-edge-node
-  namespace: {{NAMESPACE}}
-  labels:
-    name: selenium-edge-node
-    app.kubernetes.io/managed-by: helm
-    app.kubernetes.io/instance: selenium-hpa
-    app.kubernetes.io/version: 4.0.0-beta-1-prerelease-20210114
-    app.kubernetes.io/component: selenium-grid-4.0.0-beta-1-prerelease-20210114
-    helm.sh/chart: selenium-grid-0.2.0
-spec:
-  type: ClusterIP
-  selector:
-    app: selenium-edge-node
-  ports:
-    - name: tcp-edge
-      protocol: TCP
-      port: 6900
-      targetPort: 5900
----
-# Source: selenium-grid/templates/hub-service.yaml
-apiVersion: v1
-kind: Service
-metadata:
-  name: selenium-hub
-  namespace: {{NAMESPACE}}
-  labels:
-    app: selenium-hub
-    app.kubernetes.io/managed-by: helm
-    app.kubernetes.io/instance: selenium-hpa
-    app.kubernetes.io/version: 4.0.0-beta-1-prerelease-20210114
-    app.kubernetes.io/component: selenium-grid-4.0.0-beta-1-prerelease-20210114
-    helm.sh/chart: selenium-grid-0.2.0
-spec:
-  selector:
-    app: selenium-hub
-  type: NodePort
-  ports:
-    - name: http-hub
-      protocol: TCP
-      port: 4444
-      targetPort: 4444
-    - name: tcp-hub-pub
-      protocol: TCP
-      port: 4442
-      targetPort: 4442
-    - name: tcp-hub-sub
-      protocol: TCP
-      port: 4443
-      targetPort: 4443
----
-# Source: selenium-grid/templates/chrome-node-deployment.yaml
-apiVersion: apps/v1
-kind: Deployment
-metadata:
-  name: selenium-chrome-node
-  namespace: {{NAMESPACE}}
-  labels: &chrome_node_labels
-    app: selenium-chrome-node
-    app.kubernetes.io/name: selenium-chrome-node
-    app.kubernetes.io/managed-by: helm
-    app.kubernetes.io/instance: selenium-hpa
-    app.kubernetes.io/version: 4.0.0-beta-1-prerelease-20210114
-    app.kubernetes.io/component: selenium-grid-4.0.0-beta-1-prerelease-20210114
-    helm.sh/chart: selenium-grid-0.2.0
-spec:
-  replicas: 0
-  selector:
-    matchLabels:
-      app: selenium-chrome-node
-  template:
-    metadata:
-      labels: *chrome_node_labels
-      annotations:
-        checksum/event-bus-configmap: 0e5e9d25a669359a37dd0d684c485f4c05729da5a26a841ad9a2743d99460f73
-    spec:
-      containers:
-        - name: selenium-chrome-node
-          image: selenium/node-chrome:4.0.0-rc-1-prerelease-20210618
-          imagePullPolicy: IfNotPresent
-          envFrom:
-            - configMapRef:
-                name: selenium-event-bus-config
-          ports:
-            - containerPort: 5553
-              protocol: TCP
-          volumeMounts:
-            - name: dshm
-              mountPath: /dev/shm
-          resources:
-      volumes:
-        - name: dshm
-          emptyDir:
-            medium: Memory
-            sizeLimit: 1Gi
----
-# Source: selenium-grid/templates/firefox-node-deployment.yaml
-apiVersion: apps/v1
-kind: Deployment
-metadata:
-  name: selenium-firefox-node
-  namespace: {{NAMESPACE}}
-  labels: &firefox_node_labels
-    app: selenium-firefox-node
-    app.kubernetes.io/name: selenium-firefox-node
-    app.kubernetes.io/managed-by: helm
-    app.kubernetes.io/instance: selenium-hpa
-    app.kubernetes.io/version: 4.0.0-beta-1-prerelease-20210114
-    app.kubernetes.io/component: selenium-grid-4.0.0-beta-1-prerelease-20210114
-    helm.sh/chart: selenium-grid-0.2.0
-spec:
-  replicas: 0
-  selector:
-    matchLabels:
-      app: selenium-firefox-node
-  template:
-    metadata:
-      labels: *firefox_node_labels
-      annotations:
-        checksum/event-bus-configmap: 0e5e9d25a669359a37dd0d684c485f4c05729da5a26a841ad9a2743d99460f73
-    spec:
-      containers:
-        - name: selenium-firefox-node
-          image: selenium/node-firefox:4.0.0-rc-1-prerelease-20210618
-          imagePullPolicy: IfNotPresent
-          envFrom:
-            - configMapRef:
-                name: selenium-event-bus-config
-          ports:
-            - containerPort: 5553
-              protocol: TCP
-          volumeMounts:
-            - name: dshm
-              mountPath: /dev/shm
-          resources:
-      volumes:
-        - name: dshm
-          emptyDir:
-            medium: Memory
-            sizeLimit: 1Gi
----
-# Source: selenium-grid/templates/edge-node-deployment.yaml
-apiVersion: apps/v1
-kind: Deployment
-metadata:
-  name: selenium-edge-node
-  namespace: {{NAMESPACE}}
-  labels: &edge_node_labels
-    app: selenium-edge-node
-    app.kubernetes.io/name: selenium-edge-node
-    app.kubernetes.io/managed-by: helm
-    app.kubernetes.io/instance: selenium-hpa
-    app.kubernetes.io/version: 4.0.0-beta-1-prerelease-20210114
-    app.kubernetes.io/component: selenium-grid-4.0.0-beta-1-prerelease-20210114
-    helm.sh/chart: selenium-grid-0.2.0
-spec:
-  replicas: 0
-  selector:
-    matchLabels:
-      app: selenium-edge-node
-  template:
-    metadata:
-      labels: *edge_node_labels
-      annotations:
-        checksum/event-bus-configmap: 0e5e9d25a669359a37dd0d684c485f4c05729da5a26a841ad9a2743d99460f73
-    spec:
-      containers:
-        - name: selenium-edge-node
-          image: selenium/node-edge:4.0.0-rc-1-prerelease-20210618
-          imagePullPolicy: IfNotPresent
-          envFrom:
-            - configMapRef:
-                name: selenium-event-bus-config
-          ports:
-            - containerPort: 5553
-              protocol: TCP
-          volumeMounts:
-            - name: dshm
-              mountPath: /dev/shm
-          resources:
-      volumes:
-        - name: dshm
-          emptyDir:
-            medium: Memory
-            sizeLimit: 1Gi
----
-# Source: selenium-grid/templates/hub-deployment.yaml
-apiVersion: apps/v1
-kind: Deployment
-metadata:
-  name: selenium-hub
-  namespace: {{NAMESPACE}}
-  labels: &hub_labels
-    app: selenium-hub
-    app.kubernetes.io/name: selenium-hub
-    app.kubernetes.io/managed-by: helm
-    app.kubernetes.io/instance: selenium-hpa
-    app.kubernetes.io/version: 4.0.0-beta-1-prerelease-20210114
-    app.kubernetes.io/component: selenium-grid-4.0.0-beta-1-prerelease-20210114
-    helm.sh/chart: selenium-grid-0.2.0
-spec:
-  replicas: 1
-  selector:
-    matchLabels:
-      app: selenium-hub
-  template:
-    metadata:
-      labels: *hub_labels
-    spec:
-      containers:
-        - name: selenium-hub
-          image: selenium/hub:4.0.0-rc-1-prerelease-20210618
-          imagePullPolicy: IfNotPresent
-          ports:
-            - containerPort: 4444
-              protocol: TCP
-            - containerPort: 4442
-              protocol: TCP
-            - containerPort: 4443
-              protocol: TCP
-          livenessProbe:
-            httpGet:
-              path: /wd/hub/status
-              port: 4444
-            initialDelaySeconds: 10
-            periodSeconds: 10
-            timeoutSeconds: 10
-            successThreshold: 1
-            failureThreshold: 10
-          readinessProbe:
-            httpGet:
-              path: /wd/hub/status
-              port: 4444
-            initialDelaySeconds: 12
-            periodSeconds: 10
-            timeoutSeconds: 10
-            successThreshold: 1
-            failureThreshold: 10`
-
-const chrome91Yaml = `# Source: selenium-grid/templates/chrome-node-91-deployment.yaml
-apiVersion: apps/v1
-kind: Deployment
-metadata:
-  name: selenium-chrome-node-91
-  namespace: {{NAMESPACE}}
-  labels: &chrome_node_labels
-    app: selenium-chrome-node-91
-    app.kubernetes.io/name: selenium-chrome-node-91
-    app.kubernetes.io/managed-by: helm
-    app.kubernetes.io/instance: selenium-hpa
-    app.kubernetes.io/version: 4.0.0-beta-1-prerelease-20210114
-    app.kubernetes.io/component: selenium-grid-4.0.0-beta-1-prerelease-20210114
-    helm.sh/chart: selenium-grid-0.2.0
-spec:
-  replicas: 0
-  selector:
-    matchLabels:
-      app: selenium-chrome-node-91
-  template:
-    metadata:
-      labels: *chrome_node_labels
-      annotations:
-        checksum/event-bus-configmap: 0e5e9d25a669359a37dd0d684c485f4c05729da5a26a841ad9a2743d99460f73
-    spec:
-      containers:
-        - name: selenium-chrome-node-91
-          image: selenium/node-chrome:4.0.0-rc-1-prerelease-20210618
-          imagePullPolicy: IfNotPresent
-          envFrom:
-            - configMapRef:
-                name: selenium-event-bus-config
-          ports:
-            - containerPort: 5553
-              protocol: TCP
-          volumeMounts:
-            - name: dshm
-              mountPath: /dev/shm
-          resources:
-      volumes:
-        - name: dshm
-          emptyDir:
-            medium: Memory
-            sizeLimit: 1Gi
----
-# Source: selenium-grid/templates/chrome-node-91-service.yaml
-apiVersion: v1
-kind: Service
-metadata:
-  name: selenium-chrome-node-91
-  namespace: {{NAMESPACE}}
-  labels:
-    name: selenium-chrome-node-91
-    app.kubernetes.io/managed-by: helm
-    app.kubernetes.io/instance: selenium-hpa
-    app.kubernetes.io/version: 4.0.0-beta-1-prerelease-20210114
-    app.kubernetes.io/component: selenium-grid-4.0.0-beta-1-prerelease-20210114
-    helm.sh/chart: selenium-grid-0.2.0
-spec:
-  type: ClusterIP
-  selector:
-    app: selenium-chrome-node-91
-  ports:
-    - name: tcp-chrome
-      protocol: TCP
-      port: 6900
-      targetPort: 5900
----
-# Source: selenium-grid/templates/chrome-node-91-hpa.yaml
-apiVersion: keda.sh/v1alpha1
-kind: ScaledObject
-metadata:
-  name: selenium-grid-chrome-91-scaledobject
-  namespace: {{NAMESPACE}}
-  labels:
-    deploymentName: selenium-chrome-node-91
-spec:
-  maxReplicaCount: 1
-  pollingInterval: 5
-  cooldownPeriod:  5
-  scaleTargetRef:
-    name: selenium-chrome-node-91
-  triggers:
-    - type: selenium-grid
-      metadata:
-        url: '{{SELENIUM_GRID_GRAPHQL_URL}}'
-        browserName: 'chrome'
-        browserVersion: '91.0'
----`
-
-const scaledObjectYaml = `---
-# Source: selenium-grid/templates/chrome-node-hpa.yaml
-apiVersion: keda.sh/v1alpha1
-kind: ScaledObject
-metadata:
-  name: selenium-grid-chrome-scaledobject
-  namespace: {{NAMESPACE}}
-  labels:
-    deploymentName: selenium-chrome-node
-spec:
-  maxReplicaCount: 1
-  pollingInterval: 5
-  cooldownPeriod:  5
-  scaleTargetRef:
-    name: selenium-chrome-node
-  triggers:
-    - type: selenium-grid
-      metadata:
-        url: '{{SELENIUM_GRID_GRAPHQL_URL}}'
-        browserName: 'chrome'
----
-# Source: selenium-grid/templates/firefox-node-hpa.yaml
-apiVersion: keda.sh/v1alpha1
-kind: ScaledObject
-metadata:
-  name: selenium-grid-firefox-scaledobject
-  namespace: {{NAMESPACE}}
-  labels:
-    deploymentName: selenium-firefox-node
-spec:
-  maxReplicaCount: 1
-  pollingInterval: 5
-  cooldownPeriod:  5
-  scaleTargetRef:
-    name: selenium-firefox-node
-  triggers:
-    - type: selenium-grid
-      metadata:
-        url: '{{SELENIUM_GRID_GRAPHQL_URL}}'
-        browserName: 'firefox'
----
-apiVersion: keda.sh/v1alpha1
-kind: ScaledObject
-metadata:
-  name: selenium-grid-edge-scaledobject
-  namespace: {{NAMESPACE}}
-  labels:
-    deploymentName: selenium-edge-node
-spec:
-  maxReplicaCount: 1
-  pollingInterval: 5
-  cooldownPeriod:  5
-  scaleTargetRef:
-    name: selenium-edge-node
-  triggers:
-    - type: selenium-grid
-      metadata:
-        url: '{{SELENIUM_GRID_GRAPHQL_URL}}'
-        browserName: 'MicrosoftEdge'
-        sessionBrowserName: 'msedge'`
-
-const seleniumGridTestsYaml = `apiVersion: batch/v1
-kind: Job
-metadata:
-  labels:
-    app: {{JOB_NAME}}
-  name: {{JOB_NAME}}
-spec:
-  template:
-    metadata:
-      labels:
-        app: {{JOB_NAME}}
-    spec:
-      containers:
-      - name: {{CONTAINER_NAME}}
-        image: ghcr.io/kedacore/tests-selenium-grid
-        imagePullPolicy: Always
-        env:
-        - name: HOST_NAME
-          value: "{{HOST_NAME}}"
-        - name: PORT
-          value: "{{PORT}}"
-        - name: WITH_VERSION
-          value: "{{WITH_VERSION}}"
-      restartPolicy: Never`
diff --git a/tests/scalers_go/selenium/selenium_test.go b/tests/scalers_go/selenium/selenium_test.go
new file mode 100644
index 00000000000..0d5451bcb18
--- /dev/null
+++ b/tests/scalers_go/selenium/selenium_test.go
@@ -0,0 +1,550 @@
+//go:build e2e
+// +build e2e
+
+package selenium_test
+
+import (
+	"fmt"
+	"testing"
+	"time"
+
+	"github.com/joho/godotenv"
+	"github.com/stretchr/testify/assert"
+	"k8s.io/client-go/kubernetes"
+
+	. "github.com/kedacore/keda/v2/tests/helper"
+)
+
+// Load environment variables from .env file
+var _ = godotenv.Load("../../.env")
+
+const (
+	testName = "selenium-test"
+)
+
+var (
+	testNamespace         = fmt.Sprintf("%s-ns", testName)
+	chromeDeploymentName  = fmt.Sprintf("%s-chrome", testName)
+	firefoxDeploymentName = fmt.Sprintf("%s-firefox", testName)
+	edgeDeploymentName    = fmt.Sprintf("%s-edge", testName)
+	hubDeploymentName     = fmt.Sprintf("%s-hub", testName)
+	scaledObjectName      = fmt.Sprintf("%s-so", testName)
+	hubHost               = fmt.Sprintf("selenium-hub.%s", testNamespace)
+	hubPort               = 4444
+	hubGraphURL           = fmt.Sprintf("http://%s:%d/graphql", hubHost, hubPort)
+	minReplicaCount       = 0
+	maxReplicaCount       = 1
+)
+
+type templateData struct {
+	TestNamespace         string
+	ChromeDeploymentName  string
+	FirefoxDeploymentName string
+	EdgeDeploymentName    string
+	HubDeploymentName     string
+	HubHost               string
+	HubPort               int
+	HubGraphURL           string
+	WithVersion           bool
+	JobName               string
+	ScaledObjectName      string
+	MinReplicaCount       int
+	MaxReplicaCount       int
+}
+
+type templateValues map[string]string
+
+const (
+	eventBusConfigTemplate = `
+apiVersion: v1
+kind: ConfigMap
+metadata:
+  name: selenium-event-bus-config
+  namespace: {{.TestNamespace}}
+  labels:
+    app.kubernetes.io/managed-by: helm
+    app.kubernetes.io/instance: selenium-hpa
+    app.kubernetes.io/version: 4.0.0-beta-1-prerelease-20210114
+    app.kubernetes.io/component: selenium-grid-4.0.0-beta-1-prerelease-20210114
+    helm.sh/chart: selenium-grid-0.2.0
+data:
+  SE_EVENT_BUS_HOST: selenium-hub
+  SE_EVENT_BUS_PUBLISH_PORT: "4442"
+  SE_EVENT_BUS_SUBSCRIBE_PORT: "4443"
+`
+
+	chromeNodeServiceTemplate = `
+apiVersion: v1
+kind: Service
+metadata:
+  name: selenium-chrome-node
+  namespace: {{.TestNamespace}}
+  labels:
+    name: selenium-chrome-node
+    app.kubernetes.io/managed-by: helm
+    app.kubernetes.io/instance: selenium-hpa
+    app.kubernetes.io/version: 4.0.0-beta-1-prerelease-20210114
+    app.kubernetes.io/component: selenium-grid-4.0.0-beta-1-prerelease-20210114
+    helm.sh/chart: selenium-grid-0.2.0
+spec:
+  type: ClusterIP
+  selector:
+    app: selenium-chrome-node
+  ports:
+  - name: tcp-chrome
+    protocol: TCP
+    port: 6900
+    targetPort: 5900
+`
+
+	chromeNodeDeploymentTemplate = `
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: {{.ChromeDeploymentName}}
+  namespace: {{.TestNamespace}}
+  labels: &chrome_node_labels
+    app: selenium-chrome-node
+    app.kubernetes.io/name: selenium-chrome-node
+    app.kubernetes.io/managed-by: helm
+    app.kubernetes.io/instance: selenium-hpa
+    app.kubernetes.io/version: 4.0.0-beta-1-prerelease-20210114
+    app.kubernetes.io/component: selenium-grid-4.0.0-beta-1-prerelease-20210114
+    helm.sh/chart: selenium-grid-0.2.0
+spec:
+  replicas: 0
+  selector:
+    matchLabels:
+      app: selenium-chrome-node
+  template:
+    metadata:
+      labels: *chrome_node_labels
+      annotations:
+        checksum/event-bus-configmap: 0e5e9d25a669359a37dd0d684c485f4c05729da5a26a841ad9a2743d99460f73
+    spec:
+      containers:
+      - name: selenium-chrome-node
+        image: selenium/node-chrome:4.0.0-rc-1-prerelease-20210618
+        imagePullPolicy: IfNotPresent
+        envFrom:
+        - configMapRef:
+            name: selenium-event-bus-config
+        ports:
+        - containerPort: 5553
+          protocol: TCP
+        volumeMounts:
+        - name: dshm
+          mountPath: /dev/shm
+        resources: {}
+      volumes:
+      - name: dshm
+        emptyDir:
+          medium: Memory
+          sizeLimit: 1Gi
+`
+
+	chromeScaledObjectTemplate = `
+apiVersion: keda.sh/v1alpha1
+kind: ScaledObject
+metadata:
+  name: chrome-{{.ScaledObjectName}}
+  namespace: {{.TestNamespace}}
+spec:
+  maxReplicaCount: 1
+  pollingInterval: 5
+  cooldownPeriod:  5
+  scaleTargetRef:
+    name: {{.ChromeDeploymentName}}
+  triggers:
+  - type: selenium-grid
+    metadata:
+      url: '{{.HubGraphURL}}'
+      browserName: 'chrome'
+      activationThreshold: '1'
+`
+
+	firefoxNodeServiceTemplate = `
+apiVersion: v1
+kind: Service
+metadata:
+  name: selenium-firefox-node
+  namespace: {{.TestNamespace}}
+  labels:
+    name: selenium-firefox-node
+    app.kubernetes.io/managed-by: helm
+    app.kubernetes.io/instance: selenium-hpa
+    app.kubernetes.io/version: 4.0.0-beta-1-prerelease-20210114
+    app.kubernetes.io/component: selenium-grid-4.0.0-beta-1-prerelease-20210114
+    helm.sh/chart: selenium-grid-0.2.0
+spec:
+  type: ClusterIP
+  selector:
+    app: selenium-firefox-node
+  ports:
+  - name: tcp-firefox
+    protocol: TCP
+    port: 6900
+    targetPort: 5900`
+
+	firefoxNodeDeploymentTemplate = `
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: {{.FirefoxDeploymentName}}
+  namespace: {{.TestNamespace}}
+  labels: &firefox_node_labels
+    app: selenium-firefox-node
+    app.kubernetes.io/name: selenium-firefox-node
+    app.kubernetes.io/managed-by: helm
+    app.kubernetes.io/instance: selenium-hpa
+    app.kubernetes.io/version: 4.0.0-beta-1-prerelease-20210114
+    app.kubernetes.io/component: selenium-grid-4.0.0-beta-1-prerelease-20210114
+    helm.sh/chart: selenium-grid-0.2.0
+spec:
+  replicas: 0
+  selector:
+    matchLabels:
+      app: selenium-firefox-node
+  template:
+    metadata:
+      labels: *firefox_node_labels
+      annotations:
+        checksum/event-bus-configmap: 0e5e9d25a669359a37dd0d684c485f4c05729da5a26a841ad9a2743d99460f73
+    spec:
+      containers:
+      - name: selenium-firefox-node
+        image: selenium/node-firefox:4.0.0-rc-1-prerelease-20210618
+        imagePullPolicy: IfNotPresent
+        envFrom:
+        - configMapRef:
+            name: selenium-event-bus-config
+        ports:
+        - containerPort: 5553
+          protocol: TCP
+        volumeMounts:
+        - name: dshm
+          mountPath: /dev/shm
+        resources: {}
+      volumes:
+      - name: dshm
+        emptyDir:
+          medium: Memory
+          sizeLimit: 1Gi
+`
+
+	firefoxScaledObjectTemplate = `
+apiVersion: keda.sh/v1alpha1
+kind: ScaledObject
+metadata:
+  name: firefox-{{.ScaledObjectName}}
+  namespace: {{.TestNamespace}}
+spec:
+  maxReplicaCount: 1
+  pollingInterval: 5
+  cooldownPeriod:  5
+  scaleTargetRef:
+    name: {{.FirefoxDeploymentName}}
+  triggers:
+    - type: selenium-grid
+      metadata:
+        url: '{{.HubGraphURL}}'
+        browserName: 'firefox'
+        activationThreshold: '1'
+`
+
+	edgeNodeServiceTemplate = `
+apiVersion: v1
+kind: Service
+metadata:
+  name: selenium-edge-node
+  namespace: {{.TestNamespace}}
+  labels:
+    name: selenium-edge-node
+    app.kubernetes.io/managed-by: helm
+    app.kubernetes.io/instance: selenium-hpa
+    app.kubernetes.io/version: 4.0.0-beta-1-prerelease-20210114
+    app.kubernetes.io/component: selenium-grid-4.0.0-beta-1-prerelease-20210114
+    helm.sh/chart: selenium-grid-0.2.0
+spec:
+  type: ClusterIP
+  selector:
+    app: selenium-edge-node
+  ports:
+  - name: tcp-edge
+    protocol: TCP
+    port: 6900
+    targetPort: 5900
+`
+
+	edgeNodeDeploymentTemplate = `
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: {{.EdgeDeploymentName}}
+  namespace: {{.TestNamespace}}
+  labels: &edge_node_labels
+    app: selenium-edge-node
+    app.kubernetes.io/name: selenium-edge-node
+    app.kubernetes.io/managed-by: helm
+    app.kubernetes.io/instance: selenium-hpa
+    app.kubernetes.io/version: 4.0.0-beta-1-prerelease-20210114
+    app.kubernetes.io/component: selenium-grid-4.0.0-beta-1-prerelease-20210114
+    helm.sh/chart: selenium-grid-0.2.0
+spec:
+  replicas: 0
+  selector:
+    matchLabels:
+      app: selenium-edge-node
+  template:
+    metadata:
+      labels: *edge_node_labels
+      annotations:
+        checksum/event-bus-configmap: 0e5e9d25a669359a37dd0d684c485f4c05729da5a26a841ad9a2743d99460f73
+    spec:
+      containers:
+      - name: selenium-edge-node
+        image: selenium/node-edge:4.0.0-rc-1-prerelease-20210618
+        imagePullPolicy: IfNotPresent
+        envFrom:
+        - configMapRef:
+            name: selenium-event-bus-config
+        ports:
+        - containerPort: 5553
+          protocol: TCP
+        volumeMounts:
+        - name: dshm
+          mountPath: /dev/shm
+        resources: {}
+      volumes:
+      - name: dshm
+        emptyDir:
+          medium: Memory
+          sizeLimit: 1Gi
+`
+
+	edgeScaledObjectTemplate = `
+apiVersion: keda.sh/v1alpha1
+kind: ScaledObject
+metadata:
+  name: edge-{{.ScaledObjectName}}
+  namespace: {{.TestNamespace}}
+spec:
+  maxReplicaCount: 1
+  pollingInterval: 5
+  cooldownPeriod:  5
+  scaleTargetRef:
+    name: {{.EdgeDeploymentName}}
+  triggers:
+  - type: selenium-grid
+    metadata:
+      url: '{{.HubGraphURL}}'
+      browserName: 'MicrosoftEdge'
+      sessionBrowserName: 'msedge'
+      activationThreshold: '1'
+`
+
+	hubServiceTemplate = `
+apiVersion: v1
+kind: Service
+metadata:
+  name: selenium-hub
+  namespace: {{.TestNamespace}}
+  labels:
+    app: selenium-hub
+    app.kubernetes.io/managed-by: helm
+    app.kubernetes.io/instance: selenium-hpa
+    app.kubernetes.io/version: 4.0.0-beta-1-prerelease-20210114
+    app.kubernetes.io/component: selenium-grid-4.0.0-beta-1-prerelease-20210114
+    helm.sh/chart: selenium-grid-0.2.0
+spec:
+  selector:
+    app: selenium-hub
+  type: NodePort
+  ports:
+    - name: http-hub
+      protocol: TCP
+      port: 4444
+      targetPort: 4444
+    - name: tcp-hub-pub
+      protocol: TCP
+      port: 4442
+      targetPort: 4442
+    - name: tcp-hub-sub
+      protocol: TCP
+      port: 4443
+      targetPort: 4443
+`
+
+	hubDeploymentTemplate = `
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: {{.HubDeploymentName}}
+  namespace: {{.TestNamespace}}
+  labels: &hub_labels
+    app: selenium-hub
+    app.kubernetes.io/name: selenium-hub
+    app.kubernetes.io/managed-by: helm
+    app.kubernetes.io/instance: selenium-hpa
+    app.kubernetes.io/version: 4.0.0-beta-1-prerelease-20210114
+    app.kubernetes.io/component: selenium-grid-4.0.0-beta-1-prerelease-20210114
+    helm.sh/chart: selenium-grid-0.2.0
+spec:
+  replicas: 1
+  selector:
+    matchLabels:
+      app: selenium-hub
+  template:
+    metadata:
+      labels: *hub_labels
+    spec:
+      containers:
+      - name: selenium-hub
+        image: selenium/hub:4.0.0-rc-1-prerelease-20210618
+        imagePullPolicy: IfNotPresent
+        ports:
+        - containerPort: 4444
+          protocol: TCP
+        - containerPort: 4442
+          protocol: TCP
+        - containerPort: 4443
+          protocol: TCP
+        livenessProbe:
+          httpGet:
+            path: /wd/hub/status
+            port: 4444
+          initialDelaySeconds: 10
+          periodSeconds: 10
+          timeoutSeconds: 10
+          successThreshold: 1
+          failureThreshold: 10
+        readinessProbe:
+          httpGet:
+            path: /wd/hub/status
+            port: 4444
+          initialDelaySeconds: 12
+          periodSeconds: 10
+          timeoutSeconds: 10
+          successThreshold: 1
+          failureThreshold: 10
+`
+
+	jobTemplate = `
+apiVersion: batch/v1
+kind: Job
+metadata:
+  labels:
+    app: {{.JobName}}
+  name: {{.JobName}}
+  namespace: {{.TestNamespace}}
+spec:
+  ttlSecondsAfterFinished: 0
+  template:
+    metadata:
+      labels:
+        app: {{.JobName}}
+    spec:
+      containers:
+      - name: selenium-random-tests
+        image: ghcr.io/kedacore/tests-selenium-grid
+        imagePullPolicy: Always
+        env:
+        - name: HOST_NAME
+          value: "{{.HubHost}}"
+        - name: PORT
+          value: "{{.HubPort}}"
+        - name: WITH_VERSION
+          value: "{{.WithVersion}}"
+      restartPolicy: Never
+`
+)
+
+func TestScaler(t *testing.T) {
+	// Create kubernetes resources
+	kc := GetKubernetesClient(t)
+	data, templates := getTemplateData()
+	CreateKubernetesResources(t, kc, testNamespace, data, templates)
+	assert.True(t, WaitForDeploymentReplicaReadyCount(t, kc, hubDeploymentName, testNamespace, 1, 60, 1),
+		"replica count should be 1 after 1 minute")
+	assert.True(t, WaitForDeploymentReplicaReadyCount(t, kc, chromeDeploymentName, testNamespace, minReplicaCount, 60, 1),
+		"replica count should be 0 after 1 minute")
+	assert.True(t, WaitForDeploymentReplicaReadyCount(t, kc, firefoxDeploymentName, testNamespace, minReplicaCount, 60, 1),
+		"replica count should be 0 after 1 minute")
+	assert.True(t, WaitForDeploymentReplicaReadyCount(t, kc, edgeDeploymentName, testNamespace, minReplicaCount, 60, 1),
+		"replica count should be 0 after 1 minute")
+
+	testActivation(t, kc, data)
+	testScaleUp(t, kc, data)
+	testScaleDown(t, kc)
+
+	// cleanup
+	DeleteKubernetesResources(t, kc, testNamespace, data, templates)
+}
+
+func testActivation(t *testing.T, kc *kubernetes.Clientset, data templateData) {
+	t.Log("--- testing activation ---")
+	data.JobName = "activation"
+	data.WithVersion = false
+	KubectlApplyWithTemplate(t, data, "jobTemplate", jobTemplate)
+
+	// Instead of waiting a minute with every one, we sleep the time and check them later
+	time.Sleep(time.Second * 60)
+	AssertReplicaCountNotChangeDuringTimePeriod(t, kc, chromeDeploymentName, testNamespace, minReplicaCount, 5)
+	AssertReplicaCountNotChangeDuringTimePeriod(t, kc, firefoxDeploymentName, testNamespace, minReplicaCount, 5)
+	AssertReplicaCountNotChangeDuringTimePeriod(t, kc, edgeDeploymentName, testNamespace, minReplicaCount, 5)
+}
+
+func testScaleUp(t *testing.T, kc *kubernetes.Clientset, data templateData) {
+	t.Log("--- testing scale up ---")
+
+	data.JobName = "scaleup"
+	data.WithVersion = false
+	KubectlApplyWithTemplate(t, data, "jobTemplate", jobTemplate)
+
+	assert.True(t, WaitForDeploymentReplicaReadyCount(t, kc, chromeDeploymentName, testNamespace, maxReplicaCount, 60, 1),
+		"replica count should be %s after 1 minute", maxReplicaCount)
+	assert.True(t, WaitForDeploymentReplicaReadyCount(t, kc, firefoxDeploymentName, testNamespace, maxReplicaCount, 60, 1),
+		"replica count should be %s after 1 minute", maxReplicaCount)
+	assert.True(t, WaitForDeploymentReplicaReadyCount(t, kc, edgeDeploymentName, testNamespace, maxReplicaCount, 60, 1),
+		"replica count should be %s after 1 minute", maxReplicaCount)
+}
+
+func testScaleDown(t *testing.T, kc *kubernetes.Clientset) {
+	t.Log("--- testing scale down ---")
+
+	assert.True(t, WaitForDeploymentReplicaReadyCount(t, kc, chromeDeploymentName, testNamespace, minReplicaCount, 60, 3),
+		"replica count should be %s after 3 minutes", minReplicaCount)
+	assert.True(t, WaitForDeploymentReplicaReadyCount(t, kc, firefoxDeploymentName, testNamespace, minReplicaCount, 60, 3),
+		"replica count should be %s after 3 minutes", minReplicaCount)
+	assert.True(t, WaitForDeploymentReplicaReadyCount(t, kc, edgeDeploymentName, testNamespace, minReplicaCount, 60, 3),
+		"replica count should be %s after 3 minutes", minReplicaCount)
+}
+
+func getTemplateData() (templateData, map[string]string) {
+	return templateData{
+			TestNamespace:         testNamespace,
+			ChromeDeploymentName:  chromeDeploymentName,
+			FirefoxDeploymentName: firefoxDeploymentName,
+			EdgeDeploymentName:    edgeDeploymentName,
+			HubDeploymentName:     hubDeploymentName,
+			HubHost:               hubHost,
+			HubPort:               hubPort,
+			HubGraphURL:           hubGraphURL,
+			ScaledObjectName:      scaledObjectName,
+			MinReplicaCount:       minReplicaCount,
+			MaxReplicaCount:       maxReplicaCount,
+		}, templateValues{
+			"eventBusConfigTemplate":        eventBusConfigTemplate,
+			"hubDeploymentTemplate":         hubDeploymentTemplate,
+			"hubServiceTemplate":            hubServiceTemplate,
+			"chromeNodeServiceTemplate":     chromeNodeServiceTemplate,
+			"chromeNodeDeploymentTemplate":  chromeNodeDeploymentTemplate,
+			"chromeScaledObjectTemplate":    chromeScaledObjectTemplate,
+			"firefoxNodeServiceTemplate":    firefoxNodeServiceTemplate,
+			"firefoxNodeDeploymentTemplate": firefoxNodeDeploymentTemplate,
+			"firefoxScaledObjectTemplate":   firefoxScaledObjectTemplate,
+			"edgeNodeServiceTemplate":       edgeNodeServiceTemplate,
+			"edgeNodeDeploymentTemplate":    edgeNodeDeploymentTemplate,
+			"edgeScaledObjectTemplate":      edgeScaledObjectTemplate,
+		}
+}