Feat: Playwright /docker + vite watcher on html + css#1
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Co-authored-by: aider (anthropic/claude-sonnet-4-20250514) <aider@aider.chat>
Co-authored-by: aider (anthropic/claude-sonnet-4-20250514) <aider@aider.chat>
Co-authored-by: aider (anthropic/claude-sonnet-4-20250514) <aider@aider.chat>
Co-authored-by: aider (anthropic/claude-sonnet-4-20250514) <aider@aider.chat>
Co-authored-by: aider (anthropic/claude-sonnet-4-20250514) <aider@aider.chat>
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WalkthroughA new end-to-end UI testing workflow is introduced using Playwright within Docker. Supporting scripts and configuration files are added, including a shell script for orchestrating containerized testing, a Playwright-specific Dockerfile, a Vite configuration for frontend development, and updates to Changes
Sequence Diagram(s)sequenceDiagram
participant Developer
participant run.sh
participant Docker
participant PlaywrightContainer
participant DevServer (Vite)
participant TestRunner
Developer->>run.sh: Execute script
run.sh->>Docker: Start PlaywrightContainer (mount code, expose ports)
Docker->>PlaywrightContainer: Container starts
PlaywrightContainer->>DevServer (Vite): npm run dev (background)
PlaywrightContainer->>run.sh: Wait for ports 3000 and 3001 (wait-on)
run.sh->>TestRunner: npm run test:ui
TestRunner->>DevServer (Vite): Run UI tests
Estimated code review effort🎯 2 (Simple) | ⏱️ ~8 minutes Poem
✨ Finishing Touches
🧪 Generate unit tests
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Actionable comments posted: 4
🧹 Nitpick comments (2)
vite.config.ts (1)
3-8: Consider adding common development configurations.While the current setup works, you might want to add commonly useful Vite configurations for better development experience.
export default defineConfig({ root: 'src/frontend', server: { port: 3001, + host: true, // Allow external connections (useful for Docker) + watch: { + usePolling: true // Better file watching in some environments + } } });playwright.Dockerfile (1)
1-13: Consider Dockerfile optimizations.The current Dockerfile works but could be optimized for better caching and smaller image size.
FROM mcr.microsoft.com/playwright:v1.52.0-noble WORKDIR /app +# Copy package files first for better Docker layer caching COPY package.json package-lock.json ./ - -RUN npm i --frozen-lockfile; - +RUN npm ci --frozen-lockfile + +# Copy test files COPY tests ../tests COPY playwright.config.ts . ENV BASE_URL=http://host.docker.internal:8081 CMD ["npx", "playwright", "test"]
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📒 Files selected for processing (4)
bin/run.sh(1 hunks)package.json(2 hunks)playwright.Dockerfile(1 hunks)vite.config.ts(1 hunks)
🔇 Additional comments (4)
vite.config.ts (1)
1-8: LGTM! Clean and minimal Vite configuration.The configuration correctly sets up Vite for the frontend development with proper port alignment across the project files.
package.json (2)
8-8: LGTM! Script change aligns with Vite integration.The update from
http-servertovitewith proper port configuration supports the hot reload functionality mentioned in the PR objectives.
31-32: Dependencies correctly added for the new workflow.The
viteandwait-onpackages support the new development and testing workflow as described in the PR objectives.playwright.Dockerfile (1)
9-10: Playwright files verified
Thetestsdirectory andplaywright.config.tsare present at the project root, matching the COPY paths inplaywright.Dockerfile. No changes required.
| docker run -d --rm \ | ||
| --name "e2e-fullstack-challenge" \ | ||
| -v "$PWD":/app \ | ||
| -w /app \ | ||
| -p 3000:3000 \ | ||
| -p 3001:3001 \ | ||
| mcr.microsoft.com/playwright:v1.52.0-noble |
There was a problem hiding this comment.
Docker container setup seems disconnected from test execution.
The script creates a Docker container but then runs npm run test:ui on the host, not inside the container. This appears to contradict the PR objectives of running Playwright tests "inside the container."
Consider clarifying the intended workflow. If tests should run inside the container:
-docker run -d --rm \
+docker run -d --rm \
--name "e2e-fullstack-challenge" \
-v "$PWD":/app \
-w /app \
-p 3000:3000 \
-p 3001:3001 \
mcr.microsoft.com/playwright:v1.52.0-noble
+ tail -f /dev/null # Keep container runningThen execute tests inside the container:
-npx wait-on --http-get http://localhost:3000 http://localhost:3001 && npm run test:ui
+npx wait-on --http-get http://localhost:3000 http://localhost:3001 && docker exec e2e-fullstack-challenge npm run test:uiCommittable suggestion skipped: line range outside the PR's diff.
🤖 Prompt for AI Agents
In bin/run.sh around lines 5 to 11, the script starts a Docker container but
runs the Playwright tests on the host machine, not inside the container as
intended. To fix this, modify the script to execute the test command (e.g., npm
run test:ui) inside the running container using docker exec or run the tests as
part of the container startup command. This ensures the tests run within the
container environment as per the PR objectives.
| npm run dev & | ||
| echo "Starting services..." | ||
| npx wait-on --http-get http://localhost:3000 http://localhost:3001 && npm run test:ui |
There was a problem hiding this comment.
Missing process cleanup and error handling.
The script starts background processes but doesn't clean them up on exit or failure, which could leave orphaned processes running.
Add proper cleanup and error handling:
+#!/bin/bash
+
+set -e
+
+# Cleanup function
+cleanup() {
+ echo "Cleaning up..."
+ pkill -f "npm run dev" || true
+ docker stop e2e-fullstack-challenge || true
+ docker rm e2e-fullstack-challenge || true
+}
+
+# Set trap to cleanup on exit
+trap cleanup EXIT INT TERM
+
# Launch Playwright using Docker
docker run -d --rm \
--name "e2e-fullstack-challenge" \
-v "$PWD":/app \
-w /app \
-p 3000:3000 \
-p 3001:3001 \
mcr.microsoft.com/playwright:v1.52.0-noble
npm run dev &
+DEV_PID=$!
echo "Starting services..."
npx wait-on --http-get http://localhost:3000 http://localhost:3001 && npm run test:ui📝 Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.
| npm run dev & | |
| echo "Starting services..." | |
| npx wait-on --http-get http://localhost:3000 http://localhost:3001 && npm run test:ui | |
| #!/bin/bash | |
| set -e | |
| # Cleanup function | |
| cleanup() { | |
| echo "Cleaning up..." | |
| pkill -f "npm run dev" || true | |
| docker stop e2e-fullstack-challenge || true | |
| docker rm e2e-fullstack-challenge || true | |
| } | |
| # Ensure cleanup on exit, interrupt, or termination | |
| trap cleanup EXIT INT TERM | |
| # Launch Playwright using Docker | |
| docker run -d --rm \ | |
| --name "e2e-fullstack-challenge" \ | |
| -v "$PWD":/app \ | |
| -w /app \ | |
| -p 3000:3000 \ | |
| -p 3001:3001 \ | |
| mcr.microsoft.com/playwright:v1.52.0-noble | |
| # Start the dev server in the background and remember its PID | |
| npm run dev & | |
| DEV_PID=$! | |
| echo "Starting services..." | |
| npx wait-on --http-get http://localhost:3000 http://localhost:3001 && npm run test:ui |
🤖 Prompt for AI Agents
In bin/run.sh around lines 13 to 15, the script starts background processes
without handling cleanup or errors, risking orphaned processes. Modify the
script to capture the background process ID after starting npm run dev, add a
trap to kill this process on script exit or interruption, and include error
handling to stop the script if npx wait-on or npm run test:ui fail. This ensures
proper cleanup and prevents orphaned processes.
|
|
||
| npm run dev & | ||
| echo "Starting services..." | ||
| npx wait-on --http-get http://localhost:3000 http://localhost:3001 && npm run test:ui |
There was a problem hiding this comment.
🛠️ Refactor suggestion
Consider timeout and better error messaging for service readiness.
The wait-on command should have a timeout and better error handling to avoid hanging indefinitely.
-npx wait-on --http-get http://localhost:3000 http://localhost:3001 && npm run test:ui
+echo "Waiting for services to be ready..."
+npx wait-on --timeout 60000 --http-get http://localhost:3000 http://localhost:3001
+echo "Services are ready, running tests..."
+npm run test:ui📝 Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.
| npx wait-on --http-get http://localhost:3000 http://localhost:3001 && npm run test:ui | |
| echo "Waiting for services to be ready..." | |
| npx wait-on --timeout 60000 --http-get http://localhost:3000 http://localhost:3001 | |
| echo "Services are ready, running tests..." | |
| npm run test:ui |
🤖 Prompt for AI Agents
In bin/run.sh at line 15, the wait-on command currently lacks a timeout and
error handling, which can cause the script to hang indefinitely if the services
do not become ready. Add a timeout option to the wait-on command to limit how
long it waits for the services, and modify the script to check the exit status
of wait-on. If wait-on fails or times out, output a clear error message and
prevent the subsequent npm run test:ui command from running.
| COPY tests ../tests | ||
| COPY playwright.config.ts . | ||
|
|
||
| ENV BASE_URL=http://host.docker.internal:8081 |
There was a problem hiding this comment.
Port mismatch in BASE_URL configuration.
The BASE_URL is set to port 8081, but based on the other files, services run on ports 3000 (backend) and 3001 (frontend). This inconsistency will likely cause test failures.
Verify which port the tests should target and update accordingly:
-ENV BASE_URL=http://host.docker.internal:8081
+ENV BASE_URL=http://host.docker.internal:3000Or if testing the frontend:
-ENV BASE_URL=http://host.docker.internal:8081
+ENV BASE_URL=http://host.docker.internal:3001📝 Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.
| ENV BASE_URL=http://host.docker.internal:8081 | |
| # For backend tests | |
| ENV BASE_URL=http://host.docker.internal:3000 |
| ENV BASE_URL=http://host.docker.internal:8081 | |
| # For frontend tests | |
| ENV BASE_URL=http://host.docker.internal:3001 |
🤖 Prompt for AI Agents
In playwright.Dockerfile at line 12, the BASE_URL environment variable is set to
use port 8081, which does not match the backend port 3000 or frontend port 3001
used by the services. Determine whether the tests should target the backend or
frontend service and update the BASE_URL to use the correct port (3000 for
backend or 3001 for frontend) to ensure proper connectivity during testing.
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Hey man! Give these changes a try:
viteas html + css watchernpm run dev:frontendsudo chmod +x ./bin/run.shto make it executable./bin/run.shSummary by CodeRabbit
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