test(chart): Parallel tests execution against autoscaling in Kubernetes

.github/workflows/helm-chart-test.yml

@@ -10,8 +10,11 @@ permissions:
 
 jobs:
   build-and-test:
-    name: Build & test Docker images with Helm charts
+    name: Test Helm charts
     runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        test-strategy: [chart_test, chart_test_parallel_autoscaling]
     steps:
       - uses: actions/checkout@v4
       - name: Output Docker info
@@ -54,7 +57,7 @@ jobs:
           timeout_minutes: 30
           max_attempts: 3
           command: |
-            NAME=${IMAGE_REGISTRY} VERSION=${BRANCH} BUILD_DATE=${BUILD_DATE} make chart_test
+            NAME=${IMAGE_REGISTRY} VERSION=${BRANCH} BUILD_DATE=${BUILD_DATE} make ${{ matrix.test-strategy }}
       - name: Cleanup Kubernetes cluster
         if: always()
         run: make chart_cluster_cleanup
@@ -64,3 +67,10 @@ jobs:
         with:
           name: ${{ env.CHART_FILE_NAME }}
           path: ${{ env.CHART_PACKAGE_PATH }}
+      - name: Upload Helm chart template rendered
+        if: always()
+        uses: actions/upload-artifact@v3
+        with:
+          name: chart_template_rendered.yaml
+          path: ./tests/tests/output_deployment.yaml
+          if-no-files-found: ignore

Makefile

@@ -392,6 +392,9 @@ chart_test_firefox:
 chart_test_edge:
 	VERSION=$(TAG_VERSION) NAMESPACE=$(NAMESPACE) ./tests/charts/make/chart_test.sh NodeEdge
 
+chart_test_parallel_autoscaling:
+	VERSION=$(TAG_VERSION) NAMESPACE=$(NAMESPACE) ./tests/charts/make/chart_test.sh ParallelAutoscaling
+
 .PHONY: \
 	all \
 	base \

charts/selenium-grid/TESTING.md

@@ -12,19 +12,20 @@ All related testing to this helm chart will be documented in this file.
 |                        | Auto scaling with `scalingType` is `job`                             | ✓  | Cluster  |
 |                        | Auto scaling with `scalingType` is `deployment`                      | ✗  |          |
 |                        | Auto scaling with `autoscaling.scaledOptions.minReplicaCount` is `0` | ✓  | Cluster  |
+|                        | Parallel tests execution against node autoscaling                    | ✓  | Cluster  |
 | Ingress                | Ingress is enabled without `hostname`                                | ✓  | Cluster  |
 |                        | Ingress is enabled with `hostname` is set                            | ✗  |          |
 |                        | Hub `sub-path` is set with Ingress `ImplementationSpecific` paths    | ✓  | Cluster  |
 | Distributed components | `isolateComponents` is enabled                                       | ✓  | Cluster  |
-|                        | `isolateComponents` is disabled                                      | ✗  |          |
+|                        | `isolateComponents` is disabled                                      | ✓  | Cluster  |
 | Browser Nodes          | Node `nameOverride` is set                                           | ✓  | Cluster  |
 |                        | Sanity tests in node                                                 | ✓  | Cluster  |
 |                        | Video recorder is enabled in node                                    | ✗  |          |
 |                        | Node `extraEnvironmentVariables` is set value                        | ✓  | Cluster  |
 | General                | Set new image registry via `global.seleniumGrid.imageRegistry`       | ✓  | Cluster  |
 |                        | Components are able to set `.affinity`                               | ✓  | Template |
 | Tracing                | Enable tracing via `SE_ENABLE_TRACING`                               | ✓  | Cluster  |
-|                        | Disable tracing via `SE_ENABLE_TRACING`                              | ✗  |          |
+|                        | Disable tracing via `SE_ENABLE_TRACING`                              | ✓  | Cluster  |
 
 ## Test Chart Template
 - By using `helm template` command, the chart template is tested without installing it to Kubernetes cluster.
@@ -66,6 +67,8 @@ make chart_cluster_setup
 # Test Selenium Grid on Kubernetes
 make chart_test
 
+# make chart_test_parallel_autoscaling
+
 # Cleanup Kubernetes cluster
 make chart_cluster_cleanup
 ```

charts/selenium-grid/templates/node-configmap.yaml

@@ -12,5 +12,5 @@ metadata:
       {{- toYaml . | nindent 4 }}
     {{- end }}
 data:
-  DRAIN_AFTER_SESSION_COUNT: '{{- and (eq (include "seleniumGrid.useKEDA" .) "true") (eq .Values.autoscaling.scalingType "job") | ternary "1" "0" -}}'
+  SE_DRAIN_AFTER_SESSION_COUNT: '{{- and (eq (include "seleniumGrid.useKEDA" .) "true") (eq .Values.autoscaling.scalingType "job") | ternary "1" "0" -}}'
   SE_NODE_GRID_URL: '{{ include "seleniumGrid.url" .}}'

tests/SeleniumTests/__init__.py

@@ -1,4 +1,5 @@
 import unittest
+import concurrent.futures
 import os
 from selenium import webdriver
 from selenium.webdriver.common.by import By
@@ -113,3 +114,19 @@ def test_title_and_maximize_window(self):
         self.driver.get('https://the-internet.herokuapp.com')
         self.driver.maximize_window()
         self.assertTrue(self.driver.title == 'The Internet')
+
+class ParallelAutoscaling():
+    def run(self, test_classes):
+        with concurrent.futures.ThreadPoolExecutor() as executor:
+            futures = []
+            for test_class in test_classes:
+                suite = unittest.TestLoader().loadTestsFromTestCase(test_class)
+                for test in suite:
+                    futures.append(executor.submit(test))
+            for future in concurrent.futures.as_completed(futures):
+                future.result()
+
+class ParallelAutoscalingTests(unittest.TestCase):
+    def test_parallel_autoscaling(self):
+        runner = ParallelAutoscaling()
+        runner.run([ChromeTests, EdgeTests, FirefoxTests])

tests/charts/ci/ParallelAutoscaling-values.yaml

@@ -0,0 +1,40 @@
+isolateComponents: false
+autoscaling:
+  strategy: default
+  scaledOptions:
+    minReplicaCount: 0
+    maxReplicaCount: 5
+chromeNode:
+  nameOverride: my-chrome-name
+  extraEnvironmentVariables:
+    - name: SE_OPTS
+      value: "--enable-managed-downloads true"
+# Configuration for edge nodes
+edgeNode:
+  nameOverride: my-edge-name
+  extraEnvironmentVariables:
+    - name: SE_OPTS
+      value: "--enable-managed-downloads true"
+# Configuration for firefox nodes
+firefoxNode:
+  nameOverride: my-firefox-name
+  extraEnvironmentVariables:
+    - name: SE_OPTS
+      value: "--enable-managed-downloads true"
+
+ingress:
+  paths:
+    - path: /selenium(/|$)(.*)
+      pathType: ImplementationSpecific
+      backend:
+        service:
+          name: '{{ template "seleniumGrid.hub.fullname" $ }}'
+          port:
+            number: 4444
+    - path: /(/?)(session/.*/se/vnc)
+      pathType: ImplementationSpecific
+      backend:
+        service:
+          name: '{{ template "seleniumGrid.hub.fullname" $ }}'
+          port:
+            number: 4444

tests/test.py

@@ -55,6 +55,9 @@
     # Firefox Images
     'NodeFirefox': 'FirefoxTests',
     'StandaloneFirefox': 'FirefoxTests',
+
+    # Chart Parallel Test
+    'ParallelAutoscaling': 'ParallelAutoscalingTests'
 }
 
 FROM_IMAGE_ARGS = {