def test_paramprompt_eof(caplog):
"""What happens when we end early?"""
s = Session()
s._add_model_types(sherpa.models.basic)
cpt1 = s.create_model_component('const1d', 'bob')
cpt2 = s.create_model_component('gauss1d', 'fred')
s.paramprompt(True)
assert len(caplog.records) == 0
with pytest.raises(EOFError):
with SherpaVerbosity('INFO'):
with patch("sys.stdin", StringIO("\n5,1,5\n2\n")):
s.set_source(bob + fred)
assert len(caplog.records) == 0
assert cpt1.c0.val == pytest.approx(1)
assert cpt1.c0.min < -3e38
assert cpt1.c0.max > 3e38
assert cpt2.fwhm.val == pytest.approx(5)
assert cpt2.fwhm.min == pytest.approx(1)
assert cpt2.fwhm.max == pytest.approx(5)
assert cpt2.pos.val == pytest.approx(2)
assert cpt2.pos.min < -3e38
assert cpt2.pos.max > 3e38
assert cpt2.ampl.val == pytest.approx(1)
assert cpt2.ampl.min < -3e38
assert cpt2.ampl.max > 3e38
def test_paramprompt_multi_parameter(caplog):
"""Check that paramprompt works with multiple parameters"""
s = Session()
s._add_model_types(sherpa.models.basic)
cpt1 = s.create_model_component('const1d', 'bob')
cpt2 = s.create_model_component('gauss1d', 'fred')
s.paramprompt(True)
assert len(caplog.records) == 0
with SherpaVerbosity('INFO'):
with patch("sys.stdin", StringIO("\n5,1,5\n\n-5, -5, 0")):
s.set_source(bob + fred)
assert len(caplog.records) == 0
assert cpt1.c0.val == pytest.approx(1)
assert cpt1.c0.min < -3e38
assert cpt1.c0.max > 3e38
assert cpt2.fwhm.val == pytest.approx(5)
assert cpt2.fwhm.min == pytest.approx(1)
assert cpt2.fwhm.max == pytest.approx(5)
assert cpt2.pos.val == pytest.approx(0)
assert cpt2.pos.min < -3e38
assert cpt2.pos.max > 3e38
assert cpt2.ampl.val == pytest.approx(-5)
assert cpt2.ampl.min == pytest.approx(-5)
assert cpt2.ampl.max == pytest.approx(0)
def test_add_user_pars_modelname_not_a_model2():
"""Use an actual model, but not a user model"""
s = Session()
s._add_model_types(sherpa.models.basic)
s.create_model_component('scale1d', 'foo')
with pytest.raises(ArgumentTypeErr) as exc:
s.add_user_pars('foo', ['x'])
assert str(exc.value) == "'foo' must be a user model"
def test_delete_model_component_invalid_argument():
"""We could allow the component to be deleted this way"""
s = Session()
s._add_model_types(sherpa.models.basic)
tst = s.create_model_component('gauss1d', 'gmdl')
with pytest.raises(ArgumentTypeErr,
match="'name' must be a string"):
s.delete_model_component(tst)
def test_paramprompt():
"""Does paramprompt work?"""
s = Session()
assert s.list_model_ids() == []
assert s.list_model_components() == []
# Add in some models
s._add_model_types(sherpa.models.basic)
models = s.list_models()
assert models != []
assert 'const1d' in models
s.create_model_component('const1d', 'm1')
assert s.list_model_ids() == []
expected = ['m1']
assert s.list_model_components() == expected
# Now there are multiple components do not rely on any ordering
# provided by list_model_components()
#
s.paramprompt(True)
# paramprompt doesn't affect create_model_component (as shown
# by the fact that we don't have to mock stdin)
#
s.create_model_component('const1d', 'm2')
assert s.list_model_ids() == []
expected = set(expected)
expected.add('m2')
assert set(s.list_model_components()) == expected
# it does affect set_model
#
# pytest errors out if you try to read from stdin in a test, so
# try to work around this here using
# https://stackoverflow.com/questions/13238566/python-equivalent-of-input-using-sys-stdin
# An alternative would be just to check that the error is
# raised, and the text, but then we don't get to test the
# behaviour of the paramprompt code.
#
with patch("sys.stdin", StringIO(u"2.1")):
s.set_model('const1d.mx')
assert s.list_model_ids() == [1]
expected.add('mx')
assert set(s.list_model_components()) == expected
mx = s.get_model_component('mx')
assert mx.c0.val == pytest.approx(2.1)
with patch("sys.stdin", StringIO(u"2.1e-3 , 2.0e-3, 1.2e-2")):
s.set_model('x', 'const1d.my')
assert set(s.list_model_ids()) == set([1, 'x'])
expected.add('my')
assert set(s.list_model_components()) == expected
my = s.get_model_component('my')
assert my.c0.val == pytest.approx(2.1e-3)
assert my.c0.min == pytest.approx(2.0e-3)
assert my.c0.max == pytest.approx(1.2e-2)
with patch("sys.stdin", StringIO(u"2.1e-3 ,, 1.2e-2")):
s.set_model(2, 'const1d.mz')
assert set(s.list_model_ids()) == set([1, 2, 'x'])
expected.add('mz')
assert set(s.list_model_components()) == expected
mz = s.get_model_component('mz')
assert mz.c0.val == pytest.approx(2.1e-3)
assert mz.c0.min == pytest.approx(- parameter.hugeval)
assert mz.c0.max == pytest.approx(1.2e-2)
with patch("sys.stdin", StringIO(u"-12.1,-12.1")):
s.set_model('const1d.f1')
assert set(s.list_model_ids()) == set([1, 2, 'x'])
expected.add('f1')
assert set(s.list_model_components()) == expected
f1 = s.get_model_component('f1')
assert f1.c0.val == pytest.approx(-12.1)
assert f1.c0.min == pytest.approx(-12.1)
assert f1.c0.max == pytest.approx(parameter.hugeval)
with patch("sys.stdin", StringIO(u" ,-12.1")):
s.set_model('const1d.f2')
# stop checking list_model_ids
expected.add('f2')
assert set(s.list_model_components()) == expected
f2 = s.get_model_component('f2')
assert f2.c0.val == pytest.approx(1.0)
assert f2.c0.min == pytest.approx(-12.1)
assert f2.c0.max == pytest.approx(parameter.hugeval)
with patch("sys.stdin", StringIO(u" ,")):
s.set_model('const1d.f3')
f3 = s.get_model_component('f3')
assert f3.c0.val == pytest.approx(1.0)
assert f3.c0.min == pytest.approx(- parameter.hugeval)
assert f3.c0.max == pytest.approx(parameter.hugeval)
with patch("sys.stdin", StringIO(u" ,, ")):
s.set_model('const1d.f4')
f4 = s.get_model_component('f4')
assert f4.c0.val == pytest.approx(1.0)
assert f4.c0.min == pytest.approx(- parameter.hugeval)
assert f4.c0.max == pytest.approx(parameter.hugeval)
def test_paramprompt():
"""Does paramprompt work?"""
s = Session()
assert s.list_model_ids() == []
assert s.list_model_components() == []
# Add in some models
import sherpa.models.basic
s._add_model_types(sherpa.models.basic)
assert s.list_models() != []
s.create_model_component('const1d', 'm1')
assert s.list_model_ids() == []
expected = ['m1']
assert s.list_model_components() == expected
# Now there are multiple components do not rely on any ordering
# provided by list_model_components()
#
s.paramprompt(True)
# paramprompt doesn't affect create_model_component (as shown
# by the fact that we don't have to mock stdin)
#
s.create_model_component('const1d', 'm2')
assert s.list_model_ids() == []
expected = set(expected)
expected.add('m2')
assert set(s.list_model_components()) == expected
# it does affect set_model
#
# pytest errors out if you try to read from stdin in a test, so
# try to work around this here using
# https://stackoverflow.com/questions/13238566/python-equivalent-of-input-using-sys-stdin
# An alternative would be just to check that the error is
# raised, and the text, but then we don't get to test the
# behaviour of the paramprompt code.
#
with patch("sys.stdin", StringIO(u"2.1")):
s.set_model('const1d.mx')
assert s.list_model_ids() == [1]
expected.add('mx')
assert set(s.list_model_components()) == expected
mx = s.get_model_component('mx')
assert mx.c0.val == pytest.approx(2.1)
with patch("sys.stdin", StringIO(u"2.1e-3 , 2.0e-3, 1.2e-2")):
s.set_model('x', 'const1d.my')
assert set(s.list_model_ids()) == set([1, 'x'])
expected.add('my')
assert set(s.list_model_components()) == expected
my = s.get_model_component('my')
assert my.c0.val == pytest.approx(2.1e-3)
assert my.c0.min == pytest.approx(2.0e-3)
assert my.c0.max == pytest.approx(1.2e-2)
with patch("sys.stdin", StringIO(u"2.1e-3 ,, 1.2e-2")):
s.set_model(2, 'const1d.mz')
assert set(s.list_model_ids()) == set([1, 2, 'x'])
expected.add('mz')
assert set(s.list_model_components()) == expected
mz = s.get_model_component('mz')
assert mz.c0.val == pytest.approx(2.1e-3)
assert mz.c0.min == pytest.approx(- parameter.hugeval)
assert mz.c0.max == pytest.approx(1.2e-2)
with patch("sys.stdin", StringIO(u"-12.1,-12.1")):
s.set_model('const1d.f1')
assert set(s.list_model_ids()) == set([1, 2, 'x'])
expected.add('f1')
assert set(s.list_model_components()) == expected
f1 = s.get_model_component('f1')
assert f1.c0.val == pytest.approx(-12.1)
assert f1.c0.min == pytest.approx(-12.1)
assert f1.c0.max == pytest.approx(parameter.hugeval)
with patch("sys.stdin", StringIO(u" ,-12.1")):
s.set_model('const1d.f2')
# stop checking list_model_ids
expected.add('f2')
assert set(s.list_model_components()) == expected
f2 = s.get_model_component('f2')
assert f2.c0.val == pytest.approx(1.0)
assert f2.c0.min == pytest.approx(-12.1)
assert f2.c0.max == pytest.approx(parameter.hugeval)
with patch("sys.stdin", StringIO(u" ,")):
s.set_model('const1d.f3')
f3 = s.get_model_component('f3')
assert f3.c0.val == pytest.approx(1.0)
assert f3.c0.min == pytest.approx(- parameter.hugeval)
assert f3.c0.max == pytest.approx(parameter.hugeval)
with patch("sys.stdin", StringIO(u" ,, ")):
s.set_model('const1d.f4')
f4 = s.get_model_component('f4')
assert f4.c0.val == pytest.approx(1.0)
assert f4.c0.min == pytest.approx(- parameter.hugeval)
assert f4.c0.max == pytest.approx(parameter.hugeval)
