How to use the @adonisjs/logger/build/standalone.FakeLogger function in @adonisjs/logger

test('compute status pages from expression', async (assert) => {
    class AppHandler extends HttpExceptionHandler {
      protected statusPages = {
        '500..509': '500.edge',
      }

      protected context () {
        return { username: 'virk' }
      }
    }

    const appHandler = new AppHandler(new FakeLogger(loggerConfig))
    assert.deepEqual(appHandler.expandedStatusPages, {
      500: '500.edge',
      501: '500.edge',
      502: '500.edge',
      503: '500.edge',
      504: '500.edge',
      505: '500.edge',
      506: '500.edge',
      507: '500.edge',
      508: '500.edge',
      509: '500.edge',
    })
  })

test('report error with custom context', (assert) => {
    class AppHandler extends HttpExceptionHandler {
      protected context () {
        return { username: 'virk' }
      }
    }
    const logger = new FakeLogger(loggerConfig)
    const handler = new AppHandler(logger)

    const ctx = HttpContext.create('/', {}, logger, new Profiler({}).create(''), encryption)
    handler.report(new Exception('bad request', 500, 'E_BAD_REQUEST'), ctx)

    assert.deepEqual(logger.logs.map(({ level, msg, username }) => {
      return { level, msg, username}
    }), [
      {
        level: 50,
        username: 'virk',
        msg: 'E_BAD_REQUEST: bad request',
      },
    ])
  })

test('handle exception by returning html', async (assert) => {
    class AppHandler extends HttpExceptionHandler {
      protected context () {
        return { username: 'virk' }
      }
    }

    class InvalidAuth extends Exception {
    }

    const logger = new FakeLogger(loggerConfig)
    const handler = new AppHandler(logger)

    const ctx = HttpContext.create('/', {}, logger, new Profiler({}).create(''), encryption)
    ctx.request.request.headers = { accept: 'text/html' }

    await handler.handle(new InvalidAuth('bad request'), ctx)
    assert.deepEqual(ctx.response.lazyBody!.args, ['<h1> bad request </h1>', false])
  })

export function getLogger () {
  return new FakeLogger({
    enabled: true,
    name: 'lucid',
    level: 'info',
  })
}