Vitest not starting in Docker Container

[pastel lynx]

Hi @warm pine. I'm kapa.ai, your friendly support bot. I will try to answer your question by searching through the knowledge base. :wave:

---

Based on the information provided, it seems you're encountering an issue with running Vitest tests for your Nuxt application in a Docker container. Let's analyze the problem and suggest some potential solutions.

1. Environment Configuration:
   Your Vitest configuration is correctly set up to use the Nuxt environment, as shown in your vitest.config.mts file:

import { defineVitestConfig } from '@nuxt/test-utils/config';

export default defineVitestConfig({
    test: {
        environment: 'nuxt',
    },
});

This is in line with the recommended setup from the Nuxt documentation on testing (https://nuxt.com/docs/getting-started/testing#unit-testing).

2. Docker Configuration:
   Your Dockerfile is using Bun instead of Node.js. While Bun is generally compatible with Node.js, it might cause issues with some Nuxt or Vitest functionalities. Consider switching to a Node.js base image, as Nuxt and Vitest are primarily tested and supported on Node.js.

3. Running Tests:
   The command you're using to run the tests (CMD ["bun", "vitest"]) might not be sufficient to properly initialize the Nuxt environment before running the tests.

Here are some suggestions to resolve the issue:

1. Switch to a Node.js base image:

FROM node:lts-alpine

WORKDIR /app

COPY . .

RUN npm install

CMD ["npm", "run", "test"]

2. Ensure you have a test script in your package.json:

{
  "scripts": {
    "test": "nuxt prepare && vitest"
  }
}

3. Make sure your vitest.config.mts file is properly named and located in the root of your project. As mentioned in the Nuxt documentation (https://nuxt.com/docs/getting-started/testing#unit-testing), you might need to rename it to vitest.config.ts or add "type": "module" to your package.json.

4. If the issue persists, try adding more verbose logging to your Vitest configuration:

import { defineVitestConfig } from '@nuxt/test-utils/config';

export default defineVitestConfig({
    test: {
        environment: 'nuxt',
        logLevel: 'info',
        reporters: ['verbose'],
    },
});

5. Ensure that your Docker build context includes all necessary files, especially the .nuxt directory if it's generated during the build process.

If these steps don't resolve the issue, you might need to investigate further by adding more logging or debugging statements to understand where exactly the process is getting stuck.

Remember, running tests in a Docker container can sometimes behave differently than running them locally, due to differences in the environment. Make sure all your project dependencies and configurations are properly copied and set up in the Docker image.

Note: you can ask me a follow up question by @ mentioning me again :speech_balloon: