def test_generate_dataset_domain_slices(self):
collection = file_manager.DataSetCollection()
mock_dataset = mock.MagicMock()
mock_dataset.variable_name = 'tas'
mock_dataset.temporal = slice(1, 20)
mock_dataset.spatial = {
'lat': slice(20, 40),
'lon': slice(0, 100)
}
domain = collection.generate_dataset_domain(mock_dataset)
expected = {
'variable': 'tas',
'temporal': slice(1, 20),
'spatial': {
'lat': slice(20, 40),
'lon': slice(0, 100)
}
}
self.assertEqual(domain, expected)
def test_add(self):
collection = file_manager.DataSetCollection()
collection.add(cwt.Variable('file:///test1.nc', 'tas'))
collection.add(cwt.Variable('file:///test1.nc', 'tas'))
collection.add(cwt.Variable('file:///test1.nc', 'tas'))
self.assertEqual(len(collection.datasets), 3)
def test_get_cache_entry(self):
uid_hash = hashlib.sha256('file:///test1.nc:tas')
collection = file_manager.DataSetCollection()
entry = collection.get_cache_entry(uid_hash, {})
self.assertIsNone(entry)
def test_get_cache_entry_invalid(self):
uid_hash = hashlib.sha256('file:///test1.nc:tas')
models.Cache.objects.create(uid=uid_hash, url='file:///test1.nc', dimensions=json.dumps({}))
collection = file_manager.DataSetCollection()
entry = collection.get_cache_entry(uid_hash, {})
self.assertIsNone(entry)
def test_partitions(self):
domain = cwt.Domain([
cwt.Dimension('time', 20, 100),
cwt.Dimension('lat', 0, 90),
])
mock_cache = mock.MagicMock()
mock_cache_obj = mock.MagicMock()
collection = file_manager.DataSetCollection()
collection.check_cache = mock.MagicMock(return_value=(mock_cache, mock_cache_obj))
mock_dataset1 = mock.MagicMock()
mock_dataset1.variable_name = 'tas'
mock_dataset1.get_time.return_value.units = 'days since 2000'
mock_dataset1.partitions.return_value = [
mock.MagicMock(),
]
mock_dataset2 = mock.MagicMock()
mock_dataset2.variable_name = 'tas'
mock_dataset2.get_time.return_value.units = 'days since 1990'
mock_dataset2.partitions.return_value = [
mock.MagicMock(),
]
collection.datasets = [
mock_dataset1,
mock_dataset2,
]
result = [x for x in collection.partitions(domain, False)]
mock_dataset1.partitions.return_value[0].getTime.return_value.toRelativeTime.assert_called_with('days since 1990')
mock_dataset2.partitions.return_value[0].getTime.return_value.toRelativeTime.assert_called_with('days since 1990')
mock_cache_obj.write.assert_has_calls([
mock.call(mock_dataset2.partitions.return_value[0], id='tas'),
mock.call(mock_dataset1.partitions.return_value[0], id='tas'),
])
mock_cache_obj.sync.assert_called()
mock_cache.set_size.assert_called()
mock_dataset1.map_domain.assert_called_with(domain, 'days since 1990')
mock_dataset2.map_domain.assert_called_with(domain, 'days since 1990')
self.assertEqual(collection.datasets[0], mock_dataset2)
self.assertEqual(collection.datasets[1], mock_dataset1)
self.assertEqual(result[0], (mock_dataset2, mock_dataset2.partitions.return_value[0]))
self.assertEqual(result[1], (mock_dataset1, mock_dataset1.partitions.return_value[0]))
def test_context_manager(self, mock_open):
collection = file_manager.DataSetCollection()
collection.add(cwt.Variable('file:///test1.nc', 'tas'))
collection.add(cwt.Variable('file:///test1.nc', 'tas'))
collection.add(cwt.Variable('file:///test1.nc', 'tas'))
with collection as collection:
pass
self.assertEqual(3, mock_open.call_count)
self.assertEqual(3, mock_open.return_value.close.call_count)
def test_get_base_units(self):
collection = file_manager.DataSetCollection()
mock_dataset = mock.MagicMock()
mock_dataset.get_time.return_value.units = 'days since 1990'
collection.datasets.append(mock_dataset)
base_units = collection.get_base_units()
self.assertEqual(base_units, 'days since 1990')
def test_check_cache(self, mock_open):
ds = file_manager.DataSet(cwt.Variable('file:///test1.nc', 'tas'))
collection = file_manager.DataSetCollection()
collection.get_cache_entry = mock.MagicMock(return_value=None)
with self.assertNumQueries(1):
cache, cache_obj = collection.check_cache(ds)
mock_open.assert_called_with(cache.local_path, 'w')
self.assertIsNotNone(cache_obj)
def test_check_cache_error_opening(self, mock_open):
mock_open.side_effect = cdms2.CDMSError('some error')
ds = file_manager.DataSet(cwt.Variable('file:///test1.nc', 'tas'))
collection = file_manager.DataSetCollection()
collection.get_cache_entry = mock.MagicMock(return_value=None)
with self.assertNumQueries(2):
result = collection.check_cache(ds)
self.assertIsNone(result)
def test_get_variable_name(self):
fm = file_manager.FileManager([])
dsc = file_manager.DataSetCollection()
dsc.datasets = mock.MagicMock()
dsc.datasets.__getitem__.return_value.variable_name = 'tas'
fm.collections.append(dsc)
var_name = fm.get_variable_name()
self.assertEqual(var_name, 'tas')
def test_get_cache_entry_valid(self, mock_valid, mock_superset):
mock_superset.return_value = False
mock_valid.return_value = True
uid_hash = hashlib.sha256('file:///test1.nc:tas')
models.Cache.objects.create(uid=uid_hash, url='file:///test1.nc', dimensions=json.dumps({}))
collection = file_manager.DataSetCollection()
entry = collection.get_cache_entry(uid_hash, {})
self.assertIsNone(entry)
def test_check_cache_replace_file_obj(self, mock_open):
uid_hash = hashlib.sha256('file:///test1.nc:tas').hexdigest()
cache_entry = models.Cache.objects.create(uid=uid_hash, url='file:///test1.nc', dimensions='{}')
ds = file_manager.DataSet(cwt.Variable('file:///test1.nc', 'tas'))
collection = file_manager.DataSetCollection()
collection.get_cache_entry = mock.MagicMock(return_value=cache_entry)
with self.assertNumQueries(0):
result = collection.check_cache(ds)
mock_open.assert_called_with(cache_entry.local_path, 'r')
self.assertIsNone(result)
self.assertEqual(ds.file_obj, mock_open.return_value)
