def test_file_not_copied(tmpdir):
tmpdir.join('old_file').write('contents here')
f = AtomicFile(tmpdir.join('old_file').strpath,
copy_existing=False)
assert f.read() == ''
f.close()
def test_file_creation(tmpdir):
fn = str(tmpdir.join('test'))
f = AtomicFile(fn)
f.write('this is a test')
f.close()
with open(fn) as f:
assert f.read() == 'this is a test'
def test_file_copied(tmpdir):
tmpdir.join('old_file').write('contents here')
f = AtomicFile(tmpdir.join('old_file').strpath)
assert f.read() == 'contents here'
f.close()
