CI pipeline setup in Remix - Practice Problems & Coding Challenges

Challenge - 5 Problems

💻 Command Output

intermediate

Identify the output of a basic CI pipeline run

Given this simple GitHub Actions workflow snippet for a Remix app, what will be the output of the Run tests step if tests pass?

Remix

name: CI
on: [push]
jobs:
  build:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v3
      - name: Install Node.js
        uses: actions/setup-node@v3
        with:
          node-version: '18'
      - run: npm install
      - name: Run tests
        run: npm test

A The step completes successfully with exit code 0 and logs showing all tests passed.

B The step fails with exit code 1 and logs showing syntax errors in test files.

C The step is skipped because no tests are found in the project.

D The step completes but logs show warnings only, no test results.

💡 Hint

Think about what happens when npm test runs and all tests pass.

If tests pass, the npm test command exits with code 0, so the step succeeds and logs show test results.

❓ Configuration

intermediate

Correct the YAML syntax error in a CI pipeline

Which option fixes the syntax error in this GitHub Actions workflow snippet?

jobs:
  build:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v3
      - name: Install dependencies
        run npm install

A

- name: Install dependencies
  run = npm install

B

- name: Install dependencies
  run npm install

C

- name: Install dependencies
  run: npm install

D

- name: Install dependencies
  run: "npm install"

💡 Hint

YAML requires a colon after keys and proper indentation.

The run key must be followed by a colon and a space before the command. Option C is correct syntax.

❓ Troubleshoot

advanced

Diagnose why a Remix app build fails in CI

A Remix app build step in CI fails with the error: Cannot find module 'esbuild'. What is the most likely cause?

A The <code>npm install</code> step was skipped or failed, so dependencies like esbuild are missing.

B The Node.js version is too new and incompatible with esbuild.

C The build command is incorrect and does not include esbuild.

D The Remix app does not support building in CI environments.

💡 Hint

Check if dependencies are installed before building.

If dependencies are not installed, modules like esbuild won't be found, causing build failure.

🔀 Workflow

advanced

Choose the correct order of steps in a CI pipeline for Remix

What is the correct order of these steps in a CI pipeline for a Remix app?

A 2,1,3,4

B 2,3,1,4

C 1,2,3,4

D 3,2,1,4

💡 Hint

Think about what must happen before tests and build.

You must first get the code (checkout), then install dependencies, then run tests, and finally build the app.

✅ Best Practice

expert

Select the best practice for caching dependencies in CI

Which option is the best practice to speed up CI pipeline runs for a Remix app using npm?

A Skip dependency installation entirely to save time.

B Cache the <code>node_modules</code> folder directly between runs.

C Use a custom script to copy dependencies from a previous build.

D Cache the npm cache folder (e.g., <code>~/.npm</code>) and run <code>npm ci</code> each time.

💡 Hint

Consider what is reliable and recommended by npm for CI.

Caching the npm cache folder and running npm ci ensures clean installs and faster builds without risking stale dependencies.