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import os
import h5py
import pytest
import numpy as np
from pynpoint.core.pypeline import Pypeline
from pynpoint.readwrite.attr_writing import ParangWritingModule, AttributeWritingModule
from pynpoint.util.tests import create_config, create_random, remove_test_data
class TestAttributeWriting:
def setup_class(self) -> None:
self.limit = 1e-10
self.test_dir = os.path.dirname(__file__) + "/"
create_random(self.test_dir)
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=["parang.dat", "attribute.dat"])
def test_input_data(self) -> None:
data = self.pipeline.get_data("images")
assert np.sum(data) == pytest.approx(
0.007153603490533874, rel=self.limit, abs=0.0
)
assert data.shape == (5, 11, 11)
def test_parang_writing(self) -> None:
module = ParangWritingModule(
file_name="parang.dat",
name_in="parang_write1",
output_dir=None,
data_tag="images",
header=None,
)
self.pipeline.add_module(module)
self.pipeline.run_module("parang_write1")
data = np.loadtxt(self.test_dir + "parang.dat")
assert np.sum(data) == pytest.approx(10.0, rel=self.limit, abs=0.0)
assert data.shape == (5,)
def test_attribute_writing(self) -> None:
module = AttributeWritingModule(
file_name="attribute.dat",
name_in="attr_write1",
output_dir=None,
data_tag="images",
attribute="PARANG",
header=None,
)
self.pipeline.add_module(module)
self.pipeline.run_module("attr_write1")
data = np.loadtxt(self.test_dir + "attribute.dat")
assert np.sum(data) == pytest.approx(10.0, rel=self.limit, abs=0.0)
assert data.shape == (5,)
def test_attribute_not_present(self) -> None:
module = AttributeWritingModule(
file_name="attribute.dat",
name_in="attr_write3",
output_dir=None,
data_tag="images",
attribute="test",
header=None,
)
self.pipeline.add_module(module)
with pytest.raises(ValueError) as error:
self.pipeline.run_module("attr_write3")
assert str(error.value) == "The 'test' attribute is not present in 'images'."
def test_parang_writing_not_present(self) -> None:
with h5py.File(self.test_dir + "PynPoint_database.hdf5", "a") as hdf_file:
del hdf_file["header_images/PARANG"]
module = ParangWritingModule(
file_name="parang.dat",
name_in="parang_write3",
output_dir=None,
data_tag="images",
header=None,
)
self.pipeline.add_module(module)
with pytest.raises(ValueError) as error:
self.pipeline.run_module("parang_write3")
assert str(error.value) == "The PARANG attribute is not present in 'images'."
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