Draft: add ping testplan for JS (browser)

ping/_compositions/js.toml

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+[custom]
+
+[[groups]]

ping/js/.dockerignore

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+**/node_modules
+**/Dockerfile
+**/*.bundle.js

ping/js/.gitignore

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+*.bundle.js
+node_modules/

ping/js/.testgroundignore

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+*.bundle.js
+node_modules/

ping/js/Dockerfile

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+# Get the base image of Node version 16
+FROM node:16
+
+# Get the latest version of Playwright
+FROM mcr.microsoft.com/playwright:v1.27.1-focal
+
+RUN apt-get update && \
+    apt-get -y install \
+    libnss3 libatk-bridge2.0-0 libdrm-dev \
+    libxkbcommon-dev libgbm-dev libasound-dev \
+    libatspi2.0-0 libxshmfence-dev \
+    libevent-2.1-7 libenchant-2-2 \
+    socat && \
+    rm -rf /var/lib/apt/lists/*
+
+RUN mkdir -p /plan
+
+ARG PLAN_PATH="./"
+
+COPY ./plan/${PLAN_PATH}package*.json ./plan/
+
+WORKDIR /plan
+RUN npm ci
+
+COPY ./plan/${PLAN_PATH}*.js /plan/
+COPY ./plan/${PLAN_PATH}src /plan/src
+COPY ./plan/${PLAN_PATH}runtime /plan/runtime
+
+RUN npm run webpack
+RUN npm cache clean --force
+
+ARG TEST_BROWSER_DEBUG_PORT=9222
+ARG TEST_KEEP_OPENED_BROWSERS=false
+
+EXPOSE ${TEST_BROWSER_DEBUG_PORT}
+
+ENV TEST_BROWSER_DEBUG_PORT=${TEST_BROWSER_DEBUG_PORT}
+ENV TEST_KEEP_OPENED_BROWSERS=false
+
+ENTRYPOINT [ "npm", "run", "start" ]

ping/js/README.md

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+# Compatibility JS: Ping Test
+
+## Run in isolation
+
+You can run the test in isolation by importing and running it manually:
+
+```
+testground plan import --from ./ping/js --name compatibility-js
+```
+
+In a different shell:
+
+```
+testground daemon
+```
+
+Back to the original shell:
+
+```
+testground run single \
+    --plan compatibility-js \
+    --testcase ping \
+    --instances 2 \
+    --builder docker:generic \
+    --runner local:docker \
+    --wait
+```
+
+This will run the ping test between two NodeJS instances.
+
+You can do the same between for example two chromium instances:
+
+```
+testground run single \
+    --plan compatibility-js \
+    --testcase ping \
+    --instances 2 \
+    --builder docker:generic \
+    --runner local:docker \
+    --tp runtime=chromium \
+    --wait
+```
+
+This will run the ping test between two chromium instances.

ping/js/manifest.toml

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+name = "compatibility-js"
+
+[defaults]
+builder = "docker:node"
+runner = "local:docker"
+
+[builders."docker:node"]
+enabled = true
+
+[builders."docker:generic"]
+enabled = true
+
+[builders."docker:generic".build_args]
+TEST_BROWSER_DEBUG_PORT = "5321"
+TEST_KEEP_OPENED_BROWSERS = "false"
+
+[runners."local:docker"]
+enabled = true
+
+[runners."local:docker".exposed_ports]
+CHROME_DEBUG = "5321"
+
+[[testcases]]
+name = "ping"
+instances = { min = 2, max = 10000, default = 5 }
+
+  [testcases.params]
+  max_latency_ms    = { type = "int", desc = "maximum value for random local link latency", unit = "ms", default = 1000 }
+  iterations        = { type = "int", desc = "number of ping iterations we'll run against each peer", unit = "count", default = 5 }