213 lines
7.3 KiB
Python
213 lines
7.3 KiB
Python
# encoding: utf8
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import pytest
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from sqlalchemy import Column, Integer, String, create_engine
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from sqlalchemy.orm import class_mapper, joinedload, sessionmaker
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from sqlalchemy.orm.session import Session
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from sqlalchemy.ext.declarative import declarative_base
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from pokedex.db import tables, markdown
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from pokedex.db.multilang import MultilangScopedSession, MultilangSession, \
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create_translation_table
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parametrize = pytest.mark.parametrize
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@parametrize('varname', [attr for attr in dir(tables) if not attr.startswith('_')])
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def test_variable_names(varname):
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"""We want pokedex.db.tables to export tables using the class name"""
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table = getattr(tables, varname)
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try:
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if not issubclass(table, tables.TableBase) or table is tables.TableBase:
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return
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except TypeError:
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return
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classname = table.__name__
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if classname and varname[0].isupper():
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assert varname == classname, '%s refers to %s' % (varname, classname)
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@parametrize('table', tables.mapped_classes)
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def test_variable_names_2(table):
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"""We also want all of the tables exported"""
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assert getattr(tables, table.__name__) is table
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def test_class_order():
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"""The declarative classes should be defined in alphabetical order.
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Except for Language and VersionGroup which should be first.
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"""
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class_names = [table.__name__ for table in tables.mapped_classes]
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def key(name):
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return name not in ('Language', 'VersionGroup'), name
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print "Unordered pairs:", [(a,b) for (a,b) in zip(class_names, class_names[1:]) if key(a)>key(b)]
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assert class_names == sorted(class_names, key=key)
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def test_i18n_table_creation():
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"""Creates and manipulates a magical i18n table, completely independent of
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the existing schema and data. Makes sure that the expected behavior of the
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various proxies and columns works.
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"""
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Base = declarative_base()
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engine = create_engine("sqlite:///:memory:", echo=True)
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Base.metadata.bind = engine
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# Need this for the foreign keys to work!
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class Language(Base):
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__tablename__ = 'languages'
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id = Column(Integer, primary_key=True, nullable=False)
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identifier = Column(String(2), nullable=False, unique=True)
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class Foo(Base):
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__tablename__ = 'foos'
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__singlename__ = 'foo'
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id = Column(Integer, primary_key=True, nullable=False)
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translation_classes = []
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FooText = create_translation_table('foo_text', Foo, 'texts',
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language_class=Language,
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name = Column(String(100)),
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)
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# OK, create all the tables and gimme a session
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Base.metadata.create_all()
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sm = sessionmaker(class_=MultilangSession)
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sess = MultilangScopedSession(sm)
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# Create some languages and foos to bind together
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lang_en = Language(identifier='en')
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sess.add(lang_en)
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lang_jp = Language(identifier='jp')
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sess.add(lang_jp)
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lang_ru = Language(identifier='ru')
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sess.add(lang_ru)
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foo = Foo()
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sess.add(foo)
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# Commit so the above get primary keys filled in, then give the
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# session the language id
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sess.commit()
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# Note that this won't apply to sessions created in other threads, but that
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# ought not be a problem!
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sess.default_language_id = lang_en.id
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# Give our foo some names, as directly as possible
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foo_text = FooText()
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foo_text.foreign_id = foo.id
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foo_text.local_language_id = lang_en.id
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foo_text.name = 'english'
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sess.add(foo_text)
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foo_text = FooText()
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foo_text.foo_id = foo.id
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foo_text.local_language_id = lang_jp.id
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foo_text.name = 'nihongo'
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sess.add(foo_text)
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# Commit! This will expire all of the above.
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sess.commit()
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### Test 1: re-fetch foo and check its attributes
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foo = sess.query(Foo).params(_default_language_id=lang_en.id).one()
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# Dictionary of language identifiers => names
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assert foo.name_map[lang_en] == 'english'
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assert foo.name_map[lang_jp] == 'nihongo'
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# Default language, currently English
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assert foo.name == 'english'
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sess.expire_all()
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### Test 2: querying by default language name should work
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foo = sess.query(Foo).filter_by(name='english').one()
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assert foo.name == 'english'
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sess.expire_all()
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### Test 3: joinedload on the default name should appear to work
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# THIS SHOULD WORK SOMEDAY
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# .options(joinedload(Foo.name)) \
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foo = sess.query(Foo) \
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.options(joinedload(Foo.texts_local)) \
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.one()
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assert foo.name == 'english'
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sess.expire_all()
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### Test 4: joinedload on all the names should appear to work
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# THIS SHOULD ALSO WORK SOMEDAY
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# .options(joinedload(Foo.name_map)) \
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foo = sess.query(Foo) \
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.options(joinedload(Foo.texts)) \
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.one()
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assert foo.name_map[lang_en] == 'english'
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assert foo.name_map[lang_jp] == 'nihongo'
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sess.expire_all()
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### Test 5: Mutating the dict collection should work
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foo = sess.query(Foo).one()
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foo.name_map[lang_en] = 'different english'
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foo.name_map[lang_ru] = 'new russian'
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sess.commit()
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assert foo.name_map[lang_en] == 'different english'
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assert foo.name_map[lang_ru] == 'new russian'
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classes = []
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for cls in tables.mapped_classes:
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classes.append(cls)
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classes += cls.translation_classes
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@parametrize('cls', classes)
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def test_texts(cls):
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"""Check DB schema for integrity of text columns & translations.
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Mostly protects against copy/paste oversights and rebase hiccups.
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If there's a reason to relax the tests, do it
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"""
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if hasattr(cls, 'local_language') or hasattr(cls, 'language'):
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good_formats = 'markdown plaintext gametext'.split()
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assert_text = '%s is language-specific'
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else:
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good_formats = 'identifier latex'.split()
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assert_text = '%s is not language-specific'
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columns = sorted(cls.__table__.c, key=lambda c: c.name)
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text_columns = []
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for column in columns:
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format = column.info.get('format', None)
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if format is not None:
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if format not in good_formats:
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pytest.fail(assert_text % column)
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if (format != 'identifier') and (column.name == 'identifier'):
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pytest.fail('%s: identifier column name/type mismatch' % column)
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if column.info.get('official', None) and format not in 'gametext plaintext':
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pytest.fail('%s: official text with bad format' % column)
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text_columns.append(column)
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else:
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if isinstance(column.type, tables.Unicode):
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pytest.fail('%s: text column without format' % column)
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if column.name == 'name' and format != 'plaintext':
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pytest.fail('%s: non-plaintext name' % column)
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# No mention of English in the description
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if column.doc and u'English' in column.doc:
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pytest.fail("%s: description mentions English" % column)
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# If there's more than one text column in a translation table,
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# they have to be nullable, to support missing translations
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if hasattr(cls, 'local_language') and len(text_columns) > 1:
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for column in text_columns:
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assert column.nullable
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@parametrize('table', tables.mapped_classes)
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def test_identifiers_with_names(table):
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"""Test that named tables have identifiers
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"""
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for translation_class in table.translation_classes:
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if hasattr(translation_class, 'name'):
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assert hasattr(table, 'identifier'), table
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