def test_read_data_call(self):
# Checks that data is read if read_data is True.
pp_field = mock.Mock(lblrec=1, lbext=0, lbuser=[0])
with self.mock_for_field_gen([pp_field]):
open_fh = mock.Mock()
open.return_value = open_fh
next(pp._field_gen('mocked', read_data_bytes=True))
expected_loaded_bytes = pp.LoadedArrayBytes(open_fh.read(),
np.dtype('>f4'))
self.assertEqual(pp_field._data, expected_loaded_bytes)
def test_invalid_header_release(self):
# Check that an unknown LBREL value just results in a warning
# and the end of the file iteration instead of raising an error.
with self.temp_filename() as temp_path:
np.zeros(65, dtype='i4').tofile(temp_path)
generator = pp._field_gen(temp_path, False)
with mock.patch('warnings.warn') as warn:
with self.assertRaises(StopIteration):
next(generator)
self.assertEqual(warn.call_count, 1)
self.assertIn('header release number', warn.call_args[0][0])
def test_read_data_call(self):
# Checks that data is read if read_data is True.
pp_field = mock.Mock(lblrec=1, lbext=0, lbuser=[0])
with self.mock_for_field_gen([pp_field]):
open_fh = mock.MagicMock(spec=io.RawIOBase)
open.return_value = open_fh
next(pp._field_gen("mocked", read_data_bytes=True))
with open_fh as open_fh_ctx:
expected_loaded_bytes = pp.LoadedArrayBytes(
open_fh_ctx.read(), np.dtype(">f4"))
self.assertEqual(pp_field.data, expected_loaded_bytes)
def test_invalid_header_release(self):
# Check that an unknown LBREL value just results in a warning
# and the end of the file iteration instead of raising an error.
with self.temp_filename() as temp_path:
np.zeros(65, dtype='i4').tofile(temp_path)
generator = pp._field_gen(temp_path, False)
with mock.patch('warnings.warn') as warn:
with self.assertRaises(StopIteration):
next(generator)
self.assertEqual(warn.call_count, 1)
self.assertIn('header release number', warn.call_args[0][0])
def test_read_data_call(self):
# Checks that data is read if read_data is True.
pp_field = mock.Mock(lblrec=1,
lbext=0,
lbuser=[0])
with self.mock_for_field_gen([pp_field]):
open_fh = mock.Mock()
open.return_value = open_fh
next(pp._field_gen('mocked', read_data_bytes=True))
expected_loaded_bytes = pp.LoadedArrayBytes(open_fh.read(),
np.dtype('>f4'))
self.assertEqual(pp_field._data, expected_loaded_bytes)
def test_read_headers_call(self):
# Checks that the two calls to np.fromfile are called in the
# expected way.
pp_field = mock.Mock(lblrec=1,
lbext=0,
lbuser=[0])
with self.mock_for_field_gen([pp_field]):
open_fh = mock.Mock()
open.return_value = open_fh
next(pp._field_gen('mocked', read_data_bytes=False))
calls = [mock.call(open_fh, count=45, dtype='>i4'),
mock.call(open_fh, count=19, dtype='>f4')]
np.fromfile.assert_has_calls(calls)
expected_deferred_bytes = ('mocked', open_fh.tell(),
4, np.dtype('>f4'))
self.assertEqual(pp_field._data, expected_deferred_bytes)
def test_read_headers_call(self):
# Checks that the two calls to np.fromfile are called in the
# expected way.
pp_field = mock.Mock(lblrec=1, lbext=0, lbuser=[0])
with self.mock_for_field_gen([pp_field]):
open_fh = mock.Mock()
open.return_value = open_fh
next(pp._field_gen('mocked', read_data_bytes=False))
calls = [
mock.call(open_fh, count=45, dtype='>i4'),
mock.call(open_fh, count=19, dtype='>f4')
]
np.fromfile.assert_has_calls(calls)
expected_deferred_bytes = ('mocked', open_fh.tell(), 4,
np.dtype('>f4'))
self.assertEqual(pp_field._data, expected_deferred_bytes)
def test_read_headers_call(self):
# Checks that the two calls to np.fromfile are called in the
# expected way.
pp_field = mock.Mock(lblrec=1, lbext=0, lbuser=[0])
with self.mock_for_field_gen([pp_field]):
open_fh = mock.MagicMock(spec=io.RawIOBase)
open.return_value = open_fh
next(pp._field_gen("mocked", read_data_bytes=False))
with open_fh as open_fh_ctx:
calls = [
mock.call(open_fh_ctx, count=45, dtype=">i4"),
mock.call(open_fh_ctx, count=19, dtype=">f4"),
]
np.fromfile.assert_has_calls(calls)
with open_fh as open_fh_ctx:
expected_deferred_bytes = (
"mocked",
open_fh_ctx.tell(),
4,
np.dtype(">f4"),
)
self.assertEqual(pp_field.data, expected_deferred_bytes)
def gen_fields(self, fields):
with self.mock_for_field_gen(fields):
return list(pp._field_gen('mocked', 'mocked'))
def gen_fields(self, fields):
with self.mock_for_field_gen(fields):
return list(pp._field_gen('mocked', 'mocked'))
def gen_fields(self, fields):
with self.mock_for_field_gen(fields):
return list(pp._field_gen("mocked", "mocked"))