[summarizer-summarize.tentative.https.window.html]
  [Summarizer.summarize() with an empty input returns an empty text]
    expected: FAIL

  [Summarizer.summarize() with a whitespace context returns an empty result]
    expected: FAIL

  [Summarizer.summarize() fails after destroyed]
    expected: FAIL

  [Simple Summarizer.summarize() call]
    expected: FAIL

  [Multiple Summarizer.summarize() calls are resolved successfully]
    expected: FAIL