def set_bytes(self, b):
"""
Set bytes to this data element in the form of a string.
Not all implementations may support setting bytes (writing). See the
``writable`` method.
:param b: bytes to set.
:type b: str
:raises ReadOnlyError: This data element can only be read from / does
not support writing.
"""
if not self._readonly:
safe_file_write(self._filepath, b)
else:
raise ReadOnlyError("This file element is read only.")
def set_bytes(self, b):
"""
Set bytes to this data element in the form of a string.
Not all implementations may support setting bytes (writing). See the
``writable`` method.
:param b: bytes to set.
:type b: str
:raises ReadOnlyError: This data element can only be read from / does
not support writing.
"""
if not self._readonly:
safe_file_write(self._filepath, b)
else:
raise ReadOnlyError("This file element is read only.")
def test_safe_file_write_relative_simple(
self, m_NTF, m_remove, m_rename, m_scd):
# Experimental filepath and content.
fp = 'bar.txt'
expected_bytes = 'hello world'
# Mock return for temp file creation so we can check os.* calls.
m_file = m_NTF.return_value
test_tmp_fp = 'temp fp'
m_file.name = test_tmp_fp
safe_file_write(fp, expected_bytes)
m_scd.assert_called_once_with('')
m_NTF.assert_called_once_with(suffix='.txt', prefix='bar.', dir='', delete=False)
m_file.write.assert_called_once_with(expected_bytes)
m_file.__exit__.assert_called_once_with(None, None, None)
self.assertEqual(m_remove.call_count, 0)
m_rename.assert_called_once_with(test_tmp_fp, fp)
def test_safe_file_write_relative_simple(
self, m_mkstemp, m_write, m_remove, m_close, m_rename, m_scd):
# Experimental filepath and content.
fp = 'bar.txt'
expected_bytes = 'hello world'
# Mock return for temp file creation so we can check os.* calls.
test_tmp_fd = 'temp fd'
test_tmp_fp = 'temp fp'
m_mkstemp.return_value = (test_tmp_fd, test_tmp_fp)
# Mock return from write simulating complete byte writing.
m_write.return_value = len(expected_bytes)
safe_file_write(fp, expected_bytes)
m_scd.assert_called_once_with('')
m_mkstemp.assert_called_once_with(suffix='.txt', prefix='bar.', dir='')
m_write.assert_called_once_with(test_tmp_fd, expected_bytes)
nose.tools.assert_equal(m_remove.call_count, 0)
m_close.assert_called_once_with(test_tmp_fd)
m_rename.assert_called_once_with(test_tmp_fp, fp)
def test_safe_file_write_custom_tmp_dir(self, m_mkstemp, m_write, m_remove,
m_close, m_rename, m_scd):
# Experimental filepath and content.
fp = 'foo/other/bar.txt'
expected_bytes = 'hello world'
custom_tmp_dir = '/some/other/directory'
# Mock return for temp file creation so we can check os.* calls.
test_tmp_fd = 'temp fd'
test_tmp_fp = 'temp fp'
m_mkstemp.return_value = (test_tmp_fd, test_tmp_fp)
# Mock return from write simulating complete byte writing.
m_write.return_value = len(expected_bytes)
safe_file_write(fp, expected_bytes, custom_tmp_dir)
m_scd.assert_called_once_with('foo/other')
m_mkstemp.assert_called_once_with(suffix='.txt',
prefix='bar.',
dir=custom_tmp_dir)
m_write.assert_called_once_with(test_tmp_fd, expected_bytes)
self.assertEqual(m_remove.call_count, 0)
m_close.assert_called_once_with(test_tmp_fd)
m_rename.assert_called_once_with(test_tmp_fp, fp)