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es_query_fake.py
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es_query_fake.py
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import logging
import uuid
from corehq.apps.es.es_query import ESQuerySet
from corehq.apps.es.utils import values_list
FILTER_TEMPLATE = """
def {fn}(self, ...):
# called with args {args!r} and kwargs {kwargs!r}
return self._filtered(lambda doc: ...)
"""
class ESQueryFake(object):
_start = 0
_size = None
_sort_field = None
_sort_desc = False
# just to make ESQuerySet happy
_exclude_source = None
_legacy_fields = None
def __init__(self, result_docs=None):
if result_docs is None:
result_docs = list(self._all_docs)
self._result_docs = result_docs
def _clone(self, result_docs=None):
if result_docs is None:
result_docs = list(self._result_docs)
clone = self.__class__(result_docs=result_docs)
clone._start = self._start
clone._size = self._size
clone._sort_field = self._sort_field
clone._sort_desc = self._sort_desc
clone._exclude_source = self._exclude_source
clone._legacy_fields = self._legacy_fields
return clone
def _filtered(self, filter_function):
return self._clone(result_docs=filter(filter_function, self._result_docs))
@classmethod
def save_doc(cls, doc):
if '_id' not in doc:
doc['_id'] = 'silly-fake-id-{}'.format(uuid.uuid4().hex[:8])
doc = cls.transform_doc(doc)
cls._get_all_docs().append(doc)
@staticmethod
def transform_doc(doc):
return doc
@classmethod
def reset_docs(cls):
del cls._get_all_docs()[:]
@classmethod
def _get_all_docs(cls):
cls_name = cls.__name__
try:
return cls._all_docs
except AttributeError:
raise AttributeError('{} must define attribute _all_docs'.format(cls_name))
def values_list(self, *fields, **kwargs):
return values_list(self.run().hits, *fields, **kwargs)
def search_string_query(self, search_string, default_fields=None):
if not search_string:
return self
if default_fields:
return self._filtered(
lambda doc: any(doc[field] is not None and (search_string in doc[field])
for field in default_fields))
else:
raise NotImplementedError("We'll cross that bridge when we get there")
def start(self, start):
clone = self._clone()
clone._start = start
return clone
def size(self, size):
clone = self._clone()
clone._size = size
return clone
def sort(self, field, desc=False):
clone = self._clone()
clone._sort_field = field
clone._sort_desc = desc
return clone
def run(self):
result_docs = list(self._result_docs)
total = len(result_docs)
if self._sort_field:
result_docs.sort(key=lambda doc: doc[self._sort_field],
reverse=self._sort_desc)
if self._size is not None:
result_docs = result_docs[self._start:self._start + self._size]
else:
result_docs = result_docs[self._start:]
return ESQuerySet({
'hits': {
'hits': [{'_source': doc} for doc in result_docs],
'total': total,
},
}, self)
def term(self, field, value):
if isinstance(value, (list, tuple, set)):
valid_terms = list(value)
else:
valid_terms = [value]
return self._filtered(lambda doc: doc[field] in valid_terms)
def __getattr__(self, item):
"""
To make it really easy to add methods to a fake only as needed by real tests,
this prints out any calls to methods that aren't defined, with a suggested
template to use for the function, but without raising an error.
That way when you run a test, you'll get a print out for all of the methods
you need to overwrite all at once.
"""
cls_name = self.__class__.__name__
if item == '_all_docs':
raise AttributeError('{} must define attribute _all_docs'.format(cls_name))
elif item.startswith('_'):
raise AttributeError("'{}' object has no attribute '{}'"
.format(cls_name, item))
else:
def f(*args, **kwargs):
logging.error(
("You need to define {cls}.{fn}. Here's a start" + FILTER_TEMPLATE)
.format(cls=cls_name, fn=item, args=args, kwargs=kwargs)
)
return self
return f
class HQESQueryFake(ESQueryFake):
def doc_id(self, doc_id):
try:
doc_ids = list(doc_id)
except TypeError:
doc_ids = [doc_id]
return self._filtered(lambda doc: doc['_id'] in doc_ids)
def domain(self, domain):
return self._filtered(lambda doc: doc['domain'] == domain)