Corrige o máximo possível os ERROR e FAIL de sps.models

[robertatakenaka]

Descrição da tarefa

Ao executar:

python -m unittest -v tests/sps/models/test*

Obtemos o resultado

======================================================================
ERROR: test_data (tests.sps.models.test_app_group.AppGroupTest)
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Traceback (most recent call last):
  File "/Users/roberta.takenaka/github.com/scieloorg/packtools/packtools/tests/sps/models/test_app_group.py", line 98, in test_data
    obtained = list(XmlAppGroup(self.xml_tree).data())
TypeError: 'generator' object is not callable

======================================================================
ERROR: test_xmlgraphic_generates_data (tests.sps.models.test_graphic.TestGraphic)
Testa se XmlGraphic gera corretamente um iterador de dicionários.
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Traceback (most recent call last):
  File "/Users/roberta.takenaka/github.com/scieloorg/packtools/packtools/tests/sps/models/test_graphic.py", line 71, in test_xmlgraphic_generates_data
    data_list = list(xml_graphic.data())
TypeError: 'generator' object is not callable

======================================================================
ERROR: test_xmlgraphic_handles_no_graphic (tests.sps.models.test_graphic.TestGraphic)
Testa o comportamento quando o XML não contém gráficos.
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Traceback (most recent call last):
  File "/Users/roberta.takenaka/github.com/scieloorg/packtools/packtools/tests/sps/models/test_graphic.py", line 93, in test_xmlgraphic_handles_no_graphic
    data_list = list(xml_graphic.data())
TypeError: 'generator' object is not callable

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ERROR: test_xmlmedia_generates_data (tests.sps.models.test_media.TestMedia)
Testa se XmlMedia gera corretamente um iterador de dicionários.
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Traceback (most recent call last):
  File "/Users/roberta.takenaka/github.com/scieloorg/packtools/packtools/tests/sps/models/test_media.py", line 101, in test_xmlmedia_generates_data
    data_list = list(xml_media.data())
TypeError: 'generator' object is not callable

======================================================================
ERROR: test_xmlmedia_handles_no_media (tests.sps.models.test_media.TestMedia)
Testa o comportamento quando o XML não contém mídias.
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Traceback (most recent call last):
  File "/Users/roberta.takenaka/github.com/scieloorg/packtools/packtools/tests/sps/models/test_media.py", line 128, in test_xmlmedia_handles_no_media
    data_list = list(xml_media.data())
TypeError: 'generator' object is not callable

======================================================================
FAIL: test_data (tests.sps.models.test_app_group.AppTest)
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Traceback (most recent call last):
  File "/Users/roberta.takenaka/github.com/scieloorg/packtools/packtools/tests/sps/models/test_app_group.py", line 65, in test_data
    self.assertDictEqual(expected, obtained)
AssertionError: {'attrib': None, 'caption': None, 'graphics[206 chars]: []} != {'label': 'Appendix 1', 'caption': None, 'a[219 chars]: []}
Diff is 735 characters long. Set self.maxDiff to None to see it.

----------------------------------------------------------------------
Ran 654 tests in 0.654s

FAILED (failures=1, errors=5, skipped=16)

1. analise o resultado do comando
2. resolva primeiro ERROR
3. resolva depois FAIL