parse_object_test.py 文件源码

def test_guess_mime_type():
    # Can guess from URL extension
    assert 'image/jpeg' == _guess_mime_type(CaseInsensitiveDict({'Location': 'http://cdn.rets.com/1.jpg'}))
    assert 'image/png' == _guess_mime_type(CaseInsensitiveDict({'Location': 'http://cdn.rets.com/1.png'}))
    assert 'application/pdf' == _guess_mime_type(CaseInsensitiveDict({'Location': 'http://cdn.rets.com/1.pdf'}))

    # Can guess from content type if extension is missing
    assert 'image/jpeg' == _guess_mime_type(CaseInsensitiveDict({
        'Location': 'http://cdn.rets.com/1',
        'Content-Type': 'image/jpeg',
    }))

    # Can guess from content type
    assert 'image/jpeg' == _guess_mime_type(CaseInsensitiveDict({'Content-Type': 'image/jpeg'}))
    assert 'image/jpeg' == _guess_mime_type(CaseInsensitiveDict({'Content-Type': 'image/jpeg;charset=US-ASCII'}))

    assert None == _guess_mime_type(CaseInsensitiveDict({'Content-Type': ''}))
    assert None == _guess_mime_type(CaseInsensitiveDict())