def test_multi_handle(self):
""" Test the case of open multiple handle for the same database.
This test is for:
https://github.com/wanji/dbarray/issues/1
"""
dbpath = os.path.join(self.tempdir, self.DBTYPE,
'test_multi_handle.db')
for idx in range(2):
# Create random array
nrows = 1
ncols = 5
dtype = np.float32
arr = np.random.random((nrows, ncols))
arr = np.require(arr, dtype)
""" `DBArray` from scratch
"""
# Create `DBArray`
dba1 = DBArray(dbpath)
# Initialize
dba1.set_shape((nrows, ncols))
dba1.set_dtype(dtype)
# Set rows
dba1[:] = arr[:]
# Convert to ndarray
dba1.tondarray()
""" Open exsiting `DBArray`
"""
# Open another DB
dba2 = DBArray(dbpath)
dba2.tondarray()
# Check if a error rises while accessing closed db
dba1._storage.env.close()
self.assertRaises(lmdb.Error, dba2.tondarray)
def test_from_and_to(self):
for key, val in self.commdbs.iteritems():
dbpath = os.path.join(self.tempdir, self.DBTYPE,
'test_from_%s.db' % key)
dba = DBArray.fromndarray(val, dbpath, self.DBTYPE)
self._info_eq(dba, val)
arr = dba.tondarray()
self._arr_eq(arr, val)
# cloase and re-open
del dba
dba = DBArray(dbpath, self.DBTYPE)
self._info_eq(dba, val)
arr = dba.tondarray()
self._arr_eq(arr, val)
