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import os
import h5py
import pytest
import numpy as np
from pynpoint.core.pypeline import Pypeline
from pynpoint.readwrite.textwriting import TextWritingModule
from pynpoint.util.tests import create_config, create_random, remove_test_data
class TestTextWriting:
def setup_class(self) -> None:
self.limit = 1e-10
self.test_dir = os.path.dirname(__file__) + '/'
create_random(self.test_dir, nimages=1)
create_config(self.test_dir+'PynPoint_config.ini')
self.pipeline = Pypeline(self.test_dir, self.test_dir, self.test_dir)
def teardown_class(self) -> None:
remove_test_data(self.test_dir, files=['image.dat', 'data.dat'])
def test_input_data(self) -> None:
data = self.pipeline.get_data('images')
assert np.sum(data) == pytest.approx(0.0008557279524431129, rel=self.limit, abs=0.)
assert data.shape == (1, 11, 11)
def test_text_writing(self) -> None:
text_write = TextWritingModule(name_in='text_write',
data_tag='images',
file_name='image.dat',
output_dir=None,
header=None)
self.pipeline.add_module(text_write)
self.pipeline.run_module('text_write')
data = np.loadtxt(self.test_dir+'image.dat')
assert np.sum(data) == pytest.approx(0.0008557279524431129, rel=self.limit, abs=0.)
assert data.shape == (11, 11)
def test_text_writing_ndim(self) -> None:
data_4d = np.random.normal(loc=0, scale=2e-4, size=(5, 5, 5, 5))
with h5py.File(self.test_dir+'PynPoint_database.hdf5', 'a') as hdf_file:
hdf_file.create_dataset('data_4d', data=data_4d)
text_write = TextWritingModule(name_in='write_4d',
data_tag='data_4d',
file_name='data.dat',
output_dir=None,
header=None)
self.pipeline.add_module(text_write)
with pytest.raises(ValueError) as error:
self.pipeline.run_module('write_4d')
assert str(error.value) == 'Only 1D or 2D arrays can be written to a text file.'
def test_text_writing_int(self) -> None:
data_int = np.arange(1, 11, 1)
with h5py.File(self.test_dir+'PynPoint_database.hdf5', 'a') as hdf_file:
hdf_file.create_dataset('data_int', data=data_int)
text_write = TextWritingModule(name_in='write_int',
data_tag='data_int',
file_name='data.dat',
output_dir=None,
header=None)
self.pipeline.add_module(text_write)
self.pipeline.run_module('write_int')
data = np.loadtxt(self.test_dir+'data.dat')
assert data == pytest.approx(data_int, rel=self.limit, abs=0.)
assert data.shape == (10, )
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