def test_max_events(dl1_proton_file):
max_events = 3
with HDF5EventSource(input_url=dl1_proton_file, max_events=max_events) as source:
assert source.max_events == max_events # stop iterating after max_events
assert len(source) == 3
for count, _ in enumerate(source, start=1):
pass
assert count == max_events
def test_allowed_tels(dl1_file):
allowed_tels = {1, 2}
with HDF5EventSource(input_url=dl1_file, allowed_tels=allowed_tels) as source:
assert not allowed_tels.symmetric_difference(source.subarray.tel_ids)
assert source.allowed_tels == allowed_tels
for event in source:
assert set(event.trigger.tels_with_trigger).issubset(allowed_tels)
assert set(event.pointing.tel).issubset(allowed_tels)
assert set(event.dl1.tel).issubset(allowed_tels)
def test_metadata(dl1_file):
with HDF5EventSource(input_url=dl1_file) as source:
assert source.is_simulation
assert set(source.datalevels) == {
DataLevel.DL1_IMAGES,
DataLevel.DL1_PARAMETERS,
}
assert list(source.obs_ids) == [2]
assert source.simulation_config[2].corsika_version == 7710
def test_pointing(dl1_file):
with HDF5EventSource(input_url=dl1_file) as source:
for event in source:
assert np.isclose(event.pointing.array_azimuth.to_value(u.deg), 0)
assert np.isclose(event.pointing.array_altitude.to_value(u.deg), 70)
assert event.pointing.tel
for tel in event.pointing.tel:
assert np.isclose(event.pointing.tel[tel].azimuth.to_value(u.deg), 0)
assert np.isclose(event.pointing.tel[tel].altitude.to_value(u.deg), 70)
def test_read_r1(r1_hdf5_file):
print(r1_hdf5_file)
with HDF5EventSource(input_url=r1_hdf5_file) as source:
e = None
for e in source:
pass
assert e is not None
assert e.count == 3
def test_trigger_allowed_tels(dl1_proton_file):
with HDF5EventSource(
input_url=dl1_proton_file, allowed_tels={1, 2, 3, 4, 5, 10}
) as s:
print()
i = 0
for i, e in enumerate(s):
assert e.count == i
assert set(e.trigger.tels_with_trigger) == e.trigger.tel.keys()
assert len(e.trigger.tels_with_trigger) > 1
assert i == 1
def test_dl1_b_only_data(dl1_parameters_file):
reco_lons = []
reco_concentrations = []
with HDF5EventSource(input_url=dl1_parameters_file) as source:
for event in source:
for tel in event.dl1.tel:
reco_lons.append(
event.simulation.tel[tel].true_parameters.hillas.fov_lon.value
)
reco_concentrations.append(
event.simulation.tel[tel].true_parameters.concentration.core
)
assert not np.isnan(reco_lons).all()
assert sum(np.isnan(reco_lons)) == sum(np.isnan(reco_concentrations))
def test_simulation_info(dl1_file):
"""
Test that the simulated event information is plausible.
In particular this means simulated event information is finite
for all events and parameters calculated on the true images
are not all nan with the same number of nans in different columns.
"""
reco_lons = []
reco_concentrations = []
with HDF5EventSource(input_url=dl1_file) as source:
for event in source:
assert np.isfinite(event.simulation.shower.energy)
for tel in event.simulation.tel:
assert tel in event.simulation.tel
assert event.simulation.tel[tel].true_image is not None
reco_lons.append(
event.simulation.tel[tel].true_parameters.hillas.fov_lon.value
)
reco_concentrations.append(
event.simulation.tel[tel].true_parameters.concentration.core
)
assert not np.isnan(reco_lons).all()
assert sum(np.isnan(reco_lons)) == sum(np.isnan(reco_concentrations))
def test_dl1_a_only_data(dl1_image_file):
with HDF5EventSource(input_url=dl1_image_file) as source:
for event in source:
for tel in event.dl1.tel:
assert event.dl1.tel[tel].image.any()
def test_is_compatible(dl1_file):
simtel_path = get_dataset_path("gamma_test_large.simtel.gz")
assert not HDF5EventSource.is_compatible(simtel_path)
assert HDF5EventSource.is_compatible(dl1_file)
with EventSource(input_url=dl1_file) as source:
assert isinstance(source, HDF5EventSource)
def test_subarray(dl1_file):
with HDF5EventSource(input_url=dl1_file) as source:
assert source.subarray.telescope_types
assert source.subarray.camera_types
assert source.subarray.optics_types
