pio-test:tldr:79c8f

The command "pio test --filter "${pattern}"" is used to run tests in a PlatformIO project while specifying a filter pattern for test selection.

Explanation:

• "pio test" is the standard command to execute tests in a PlatformIO project.
• "--filter" is an option used to specify a filter pattern for selecting specific tests to run.
• "${pattern}" is a placeholder for the actual filter pattern you want to use. You need to replace "${pattern}" with the desired filter pattern.

The filter pattern can be used to match specific test names or tags. It allows you to selectively run a subset of tests based on their names or assigned tags. For example, you might have tests named "test_foo" and "testbar", and you can use a pattern like "test*" to run only the tests starting with "test_".

Here's an example of how you can use this command: pio test --filter "test_"

In this example, it will run all the tests in the project that start with "test_" in their names. The actual behavior will depend on your project's test setup and configuration.