def test_accessor_tess_sector():
lc0 = TessLightCurve(
time=np.arange(1, 5),
flux=np.arange(1, 5),
flux_err=np.arange(1, 5),
targetid=50000,
)
lc0.meta["SECTOR"] = 14
lc1 = TessLightCurve(
time=np.arange(10, 15),
flux=np.arange(10, 15),
flux_err=np.arange(10, 15),
targetid=120334,
)
lc1.meta["SECTOR"] = 26
lcc = LightCurveCollection([lc0, lc1])
assert (lcc.sector == [14, 26]).all()
# The sector accessor can be used to generate boolean array
# to support filter collection by sector
assert ((lcc.sector == 26) == [False, True]).all()
assert ((lcc.sector < 20) == [True, False]).all()
# boundary condition: some lightcurve objects do not have sector
lc2 = LightCurve(
time=np.arange(15, 20),
flux=np.arange(15, 20),
flux_err=np.arange(15, 20),
targetid=23456,
)
lcc.append(lc2)
# expecting [14, 26, np.nan], need 2 asserts to do it.
assert (lcc.sector[:-1] == [14, 26]).all()
assert np.isnan(lcc.sector[-1])
# The sector accessor can be used to generate boolean array
# to support filter collection by sector
assert ((lcc.sector == 26) == [False, True, False]).all()
assert ((lcc.sector < 20) == [True, False, False]).all()
# ensure it works for TPFs too.
with warnings.catch_warnings():
warnings.simplefilter("ignore", LightkurveWarning)
# Ignore "A Kepler data product is being opened using the `TessTargetPixelFile` class"
# the test only cares about the SECTOR header that it sets.
tpf = TessTargetPixelFile(filename_tpf_all_zeros)
tpf.hdu[0].header["SECTOR"] = 23
tpf2 = TessTargetPixelFile(filename_tpf_one_center)
# tpf2 has no sector defined
tpf3 = TessTargetPixelFile(filename_tpf_one_center)
tpf3.hdu[0].header["SECTOR"] = 1
tpfc = TargetPixelFileCollection([tpf, tpf2, tpf3])
assert (tpfc.sector == [23, None, 1]).all()
def test_collection_append():
"""Does Collection.append() work?"""
lc = LightCurve(
time=np.arange(1, 5),
flux=np.arange(1, 5),
flux_err=np.arange(1, 5),
targetid=500,
)
lc2 = LightCurve(
time=np.arange(10, 15),
flux=np.arange(10, 15),
flux_err=np.arange(10, 15),
targetid=100,
)
lcc = LightCurveCollection([lc])
lcc.append(lc2)
assert len(lcc) == 2
def test_collection_getitem():
"""Tests Collection.__getitem__"""
lc = LightCurve(
time=np.arange(1, 5),
flux=np.arange(1, 5),
flux_err=np.arange(1, 5),
targetid=50000,
)
lc2 = LightCurve(
time=np.arange(10, 15),
flux=np.arange(10, 15),
flux_err=np.arange(10, 15),
targetid=120334,
)
lcc = LightCurveCollection([lc])
lcc.append(lc2)
assert (lcc[0] == lc).all()
assert (lcc[1] == lc2).all()
with pytest.raises(IndexError):
lcc[50]
def test_collection_setitem():
"""Tests Collection. __setitem__"""
lc = LightCurve(
time=np.arange(1, 5),
flux=np.arange(1, 5),
flux_err=np.arange(1, 5),
targetid=50000,
)
lc2 = LightCurve(
time=np.arange(10, 15),
flux=np.arange(10, 15),
flux_err=np.arange(10, 15),
targetid=120334,
)
lcc = LightCurveCollection([lc])
lcc.append(lc2)
lc3 = LightCurve(time=[1], targetid=55)
lcc[1] = lc3
assert lcc[1].time == lc3.time
lcc.append(lc2)
assert (lcc[2].time == lc2.time).all()
with pytest.raises(IndexError):
lcc[51] = 10
