Running Tests for the Docker Getting Started Project

To run tests for the Docker Getting Started project, follow the step-by-step instructions below. These instructions assume you have the necessary environment set up as described in the original documentation.

Prerequisites

Ensure that you have Docker Desktop installed and running. You should also have a clone of the Docker Getting Started repository on your system.

Step 1: Navigate to the Project Directory

Open a terminal window and navigate to the directory of the cloned project.

cd ~/path/to/docker-getting-started

Step 2: Building the Docker Image

If the Docker image has not been built yet, you need to build it before running the tests. Use the following command to build the image:

docker build -t getting-started .

Step 3: Running the Docker Container

Once the image is built, run a container from the image. Make sure to use the -it flag to run the container interactively and the --rm flag to remove the container after exit.

docker run -it --rm getting-started

Step 4: Executing Tests in the Container

Inside the running container, you can execute the tests. Here is how you can do it depending on the testing framework used in the project. If, for example, the project uses Jest as the testing framework, run the following command:

npm test

For projects using Mocha, you would execute:

mocha

Step 5: Viewing the Test Results

After executing the test command, the output will display the results of your tests directly in the terminal. Look for lines indicating passed and failed tests. A typical output with Jest might look like this:

 PASS  ./example.test.js
  ✓ adds 1 + 2 to equal 3 (5ms)

Test Suites: 1 passed, 1 total
Tests:       1 passed, 1 total
Snapshots:   0 total
Time:        1.542s
Ran all test suites.

Step 6: Exiting the Container

Once you have finished running the tests and reviewed the results, you can exit the container by typing:

exit

This command will terminate the interactive session and, since you used the --rm option, the container will be removed.

Additional Commands

• If you need to debug or need an interactive shell in the container to run commands, you can start a shell using:

docker run -it --rm getting-started /bin/bash

• To run specific tests or files, modify the test command accordingly. For example, to run a specific test with Jest:

npm test -- tests/example.test.js

Following these steps will guide you through running tests in the Docker Getting Started project efficiently.

Source: Docker Getting Started Documentation