Testing

You may wish to test that your checks are handled correctly, without needing to satisfy the requirements of the check itself. The package provides the ability to fake the results of checks.

##Basic usage

The Health Facade has a fake method that allows you to fake the results of a check. Let's use it to make the DatabaseCheck fail in a test:

it('has an error if the database is not available', function () {
  Health::fake([
    DatabaseCheck::class => new Result(Status::failed())
  ]);

  $this->get('/health')->assertStatus(503);
});

Even if the database is available, the health endpoint will fail thanks to our fake. You may fake as many checks as you'd like in the array passed to the fake method.

##Advanced usage

There may be occasions where you need to override the shouldRun method in a fake. To accomplish this, you may call FakeCheck::result and pass a boolean indicating whether the check should run:

it('has an error if the database is not available', function () {
  Health::fake([
    DatabaseCheck::class => FakeCheck::result(
        new Result(Status::failed()),
        true // Run this check, even if `shouldRun` returns false in the check itself
    )
  ]);

  $this->get('/health')->assertStatus(503);
});

On rare occasions, you may have multiple instances of the same check, and wish to return different results for each. The package allows you to provide a closure, which will receive the instance of the check as an argument:

it('has an error if the database is not available', function () {
  Health::fake([
    DatabaseCheck::class => fn($check) => $check->getName() === 'Users DB' 
        ? new Result(Status::ok())
        : new Result(Status::failed())
  ]);

  $this->get('/health')->assertStatus(503);
});