How to use the sumy.summarizers.edmundson.EdmundsonSummarizer function in sumy

def test_key_no_bonus_words_in_document():
    document = build_document(
        ("wa wb wc wd", "I like music",),
        ("This is test sentence with some extra words",)
    )
    summarizer = EdmundsonSummarizer()
    summarizer.bonus_words = ("ba", "bb", "bc", "bonus",)

    sentences = summarizer.key_method(document, 10)

    assert list(map(to_unicode, sentences)) == [
        "wa wb wc wd",
        "I like music",
        "This is test sentence with some extra words",
    ]

def test_title_method_without_title():
    document = build_document(
        ("This is sentence", "This is another one",),
        ("And some next sentence but no heading",)
    )

    summarizer = EdmundsonSummarizer()
    summarizer.null_words = ("this", "is", "some", "and",)

    sentences = summarizer.title_method(document, 10)
    assert list(map(to_unicode, sentences)) == [
        "This is sentence",
        "This is another one",
        "And some next sentence but no heading",
    ]

def test_location_method_without_null_words():
    summarizer = EdmundsonSummarizer()

    with pytest.raises(ValueError):
        summarizer.location_method(build_document(), 10)

def test_title_method_3():
    document = build_document_from_string("""
        # This is cool heading
        Because I am sentence I like words
        And because I am string I like characters

        # blank and heading
        This is next paragraph because of blank line above
        Here is the winner because contains words like cool and heading
    """)

    summarizer = EdmundsonSummarizer()
    summarizer.null_words = ("this", "is", "I", "am", "and",)

    sentences = summarizer.title_method(document, 3)

    assert list(map(to_unicode, sentences)) == [
        "Because I am sentence I like words",
        "This is next paragraph because of blank line above",
        "Here is the winner because contains words like cool and heading",
    ]

def test_title_method_with_empty_document():
    summarizer = EdmundsonSummarizer()
    summarizer.null_words = ("ba", "bb", "bc",)

    sentences = summarizer.title_method(build_document(), 10)
    assert list(map(to_unicode, sentences)) == []

def test_key_without_bonus_words():
    summarizer = EdmundsonSummarizer()

    with pytest.raises(ValueError):
        summarizer.key_method(build_document(), 10)

def test_title_method_1():
    document = build_document_from_string("""
        # This is cool heading
        Because I am sentence I like words
        And because I am string I like characters

        # blank and heading
        This is next paragraph because of blank line above
        Here is the winner because contains words like cool and heading
    """)

    summarizer = EdmundsonSummarizer()
    summarizer.null_words = ("this", "is", "I", "am", "and",)

    sentences = summarizer.title_method(document, 1)

    assert list(map(to_unicode, sentences)) == [
        "Here is the winner because contains words like cool and heading",
    ]

def test_null_words_property():
    summarizer = EdmundsonSummarizer()

    assert summarizer.null_words == frozenset()

    words = ("word", "another", "and", "some", "next",)
    summarizer.null_words = words

    assert summarizer.null_words == frozenset(words)

def test_cue_letters_case():
    document = build_document(
        ("X X X", "x x x x",),
        ("w w w", "W W W W",)
    )

    summarizer = EdmundsonSummarizer()
    summarizer.bonus_words = ("X", "w",)
    summarizer.stigma_words = ("stigma",)

    sentences = summarizer.cue_method(document, 2)

    assert list(map(to_unicode, sentences)) == [
        "x x x x",
        "W W W W",
    ]

def test_title_method_without_null_words():
    summarizer = EdmundsonSummarizer()

    with pytest.raises(ValueError):
        summarizer.title_method(build_document(), 10)