How to use the hepcrawl.testlib.fixtures.fake_response_from_string function in hepcrawl

"""Return a parse call to a record without spalsh page url."""
    spider = brown_spider.BrownSpider()
    body = """
    {
    "items": {
        "docs": [
            {
                "json_uri": "https://repository.library.brown.edu/api/pub/items/bdr:11303/"

            }
        ]
    }
    }
    """

    response = fake_response_from_string(body)
    jsonresponse = json.loads(response.body_as_unicode())
    jsonrecord = jsonresponse["items"]["docs"][0]
    response.meta["jsonrecord"] = jsonrecord

    parsed_item = spider.parse(response).next()
    assert parsed_item
    assert parsed_item.record

    return parsed_item.record

body = """
    <article xmlns:xlink="http://www.w3.org/1999/xlink">
        
        
        <title>References</title>
            <label>5.</label>R.V. Krishnan, G. Panneerselvam, P. Manikandan M.P. Antony, K. Nagarajan, <source>J. Nucl. Radiochem. Sci., 10.1, 19–26 (2009).

            <label>44.</label>L. Cronin, P. Sojka, A. Lefebvre, <source>SAE Technical Paper, DOI: 10.4271/852086, (1985)

            <label>3.</label>T. Aliyev, Т. Belyaev, S. Gallagher Simulation in ANSYS flow to the gas purification section of the multicomponent gas mixture through the dust cyclone CKBN GP-628. <source>Mechanical engineering, Moscow, №10, (2014).

        
        
    </article>
    """
    response = fake_response_from_string(body)
    node = get_node(spider, "//article", response)[0]

    parsed_item = spider.parse_node(response, node)
    assert parsed_item
    assert parsed_item.record

    return parsed_item.record

def test_not_published_record():
    """Not-published paper should result in nothing."""
    spider = iop_spider.IOPSpider()
    body = """
    
        <article>
            
                
                    2015
                    03
                
            
        </article>
    
    """
    response = fake_response_from_string(body)
    node = get_node(spider, "Article", response)
    spider.pdf_files = get_test_suite_path(
        'responses',
        'iop',
        'pdf',
    )
    records = spider.parse_node(response, node)
    assert records is None

spider = edp_spider.EDPSpider()
    body = """
    <article xmlns:xlink="http://www.w3.org/1999/xlink">
        
            
            aa14485-102010A%26A...516A..97N
                
                    Dielectronic recombination of argon-like ions
                
                
                
            
        
    </article>
    """
    response = fake_response_from_string(body)
    node = get_node(spider, "//article", response)[0]

    parsed_item = spider.parse_node(response, node)
    assert parsed_item
    assert parsed_item.record
    record = parsed_item.record

    assert "related_article_doi" in record
    assert record["related_article_doi"][0][
        "value"] == "10.1051/0004-6361/201014485"

"""Test MSc thesis skipping.

    Return a HEPrecord for a Master's thesis (should be None as we don't
    want them)."""
    spider = infn_spider.InfnSpider()
    body = """
    
    
    
       Tipo
      Magister
    
    
    
    """
    response = fake_response_from_string(body)
    record = spider.scrape_splash(response)

    assert record is None

def non_thesis():
    """Return a heprecord for a Master's thesis (should be None as we don't
    want them)."""
    spider = mit_spider.MITSpider()
    body = """
    
        
            
                dc.description.degree
                M.Sc.
                en_US
            
        
    
    """
    response = fake_response_from_string(body)
    return spider.build_item(response)

def package_rich(tarbzfile):
    """Extract tar.gz package with 'rich' XML file."""
    spider = edp_spider.EDPSpider()
    response = fake_response_from_string(text="", url="file://" + tarbzfile)
    return next(spider.handle_package_file(response))

def test_collections_review():
    """Test collections when doctype is review. JATS format."""
    spider = edp_spider.EDPSpider()
    body = """
    <article xmlns:xlink="http://www.w3.org/1999/xlink">
    </article>
    """
    response = fake_response_from_string(body)
    node = get_node(spider, "//article", response)[0]

    parsed_item = spider.parse_node(response, node)
    assert parsed_item
    assert parsed_item.record
    record = parsed_item.record

    assert "collections" in record
    assert record["collections"] == [{'primary': 'HEP'}, {'primary': 'Review'}]

"""Parse the node in the listing without author, date, or url. Should
    take straight to `build_item` and build the HEPRecord.
    """
    spider = magic_spider.MagicSpider()
    body = """
    
        
            <table style="margin-left: 20px; width: 920px;" class="list">
                <tbody><tr class="odd">
                    <td><a>Limits to the violation of...</a></td>
                </tr>
            </tbody></table>
        
    
    """
    response = fake_response_from_string(body)
    node = get_node(spider, spider.itertag, text=body)
    parsed_item = spider.parse_node(response, node).next()
    assert parsed_item
    assert parsed_item.record
    record = parsed_item.record

    assert isinstance(record, hepcrawl.items.HEPRecord)
    assert "date" not in record
    assert "authors" not in record

def test_no_aff():
    """Test the result of calling `scrape_for_pdf` without author
    affiliation. Should be a HEPRecord."""
    spider = magic_spider.MagicSpider()
    body = """
    
    <div id="content">
        <h3 class="pub_title">Limits to the violation of Lorentz...</h3>
        <p class="author">Daniel Garrido Terrats</p>
    </div>
    
    """
    response = fake_response_from_string(body)
    parsed_item = spider.scrape_for_pdf(response).next()
    assert parsed_item
    assert parsed_item.record
    record = parsed_item.record

    assert isinstance(record, hepcrawl.items.HEPRecord)
    assert "date" not in record
    assert "affiliations" not in record["authors"]