def test_basic_lcia(self):
test_data = {
("t", "1"): {
'exchanges': [{
'amount': 1,
'input': ('t', "2"),
'type': 'technosphere',
}],
},
("t", "2"): {
'exchanges': [{
'amount': 1,
'input': ('biosphere', "1"),
'type': 'biosphere',
}],
},
}
method_data = [(('biosphere', "1"), 42)]
self.add_basic_biosphere()
test_db = Database("t")
test_db.register()
test_db.write(test_data)
method = Method(("a method", ))
method.register()
method.write(method_data)
lca = LCA({("t", "1"): 1}, ("a method", ))
lca.lci()
lca.lcia()
self.assertTrue(np.allclose(42, lca.score))
def test_redo_lcia_switches_demand(self):
test_data = {
("t", "1"): {
'exchanges': [{
'amount': 1,
'input': ('t', "2"),
'type': 'technosphere',
}],
},
("t", "2"): {
'exchanges': [{
'amount': 1,
'input': ('biosphere', "1"),
'type': 'biosphere',
}],
},
}
method_data = [(('biosphere', "1"), 42)]
self.add_basic_biosphere()
test_db = Database("t")
test_db.register()
test_db.write(test_data)
method = Method(("a method", ))
method.register()
method.write(method_data)
lca = LCA({("t", "1"): 1}, ("a method", ))
lca.lci()
lca.lcia()
self.assertEqual(lca.demand, {("t", "1"): 1})
lca.redo_lcia({("t", "2"): 2})
self.assertEqual(lca.demand, {("t", "2"): 2})
def test_redo_lcia_switches_demand(self):
test_data = {
("t", "1"): {
"exchanges": [{
"amount": 1,
"input": ("t", "2"),
"type": "technosphere",
}],
},
("t", "2"): {
"exchanges": [{
"amount": 1,
"input": ("biosphere", "1"),
"type": "biosphere",
}],
},
}
method_data = [(("biosphere", "1"), 42)]
self.add_basic_biosphere()
test_db = Database("t")
test_db.register()
test_db.write(test_data)
method = Method(("a method", ))
method.register()
method.write(method_data)
lca = LCA({("t", "1"): 1}, ("a method", ))
lca.lci()
lca.lcia()
self.assertEqual(lca.demand, {("t", "1"): 1})
lca.redo_lcia({("t", "2"): 2})
self.assertEqual(lca.demand, {("t", "2"): 2})
def test_basic_lcia(self):
test_data = {
("t", "1"): {
"exchanges": [{
"amount": 1,
"input": ("t", "2"),
"type": "technosphere",
}],
},
("t", "2"): {
"exchanges": [{
"amount": 1,
"input": ("biosphere", "1"),
"type": "biosphere",
}],
},
}
method_data = [(("biosphere", "1"), 42)]
self.add_basic_biosphere()
test_db = Database("t")
test_db.register()
test_db.write(test_data)
method = Method(("a method", ))
method.register()
method.write(method_data)
lca = LCA({("t", "1"): 1}, ("a method", ))
lca.lci()
lca.lcia()
self.assertTrue(np.allclose(42, lca.score))
def test_monte_carlo_as_iterator():
packages = [
fixture_dir / "mc_basic.zip",
]
mc = LCA({3: 1}, data_objs=packages, use_distributions=True)
mc.lci()
mc.lcia()
for _, _ in zip(mc, range(10)):
assert mc.score > 0
def test_plain_monte_carlo():
packages = [
fixture_dir / "mc_basic.zip",
]
mc = LCA({3: 1}, data_objs=packages, use_distributions=True)
mc.lci()
mc.lcia()
first = mc.score
next(mc)
assert first != mc.score
def test_empty_biosphere_lcia():
fd = fixture_dir / "empty_biosphere"
key = load_mapping(fd / "mapping.json")[("t", "1")]
packages = [
fd / "biosphere.zip",
fd / "test_db.zip",
fd / "method.zip",
]
lca = LCA({key: 1}, data_objs=packages)
lca.lci()
with pytest.raises(EmptyBiosphere):
lca.lcia()
def test_lca_has():
mapping = dict(
json.load(open(fixture_dir / "bw2io_example_db_mapping.json")))
packages = [
fixture_dir / "bw2io_example_db.zip",
fixture_dir / "ipcc_simple.zip",
]
lca = LCA(
{mapping["Driving an electric car"]: 1},
data_objs=packages,
)
lca.lci()
lca.lcia()
assert lca.has("technosphere")
assert lca.has("characterization")
assert not lca.has("foo")
def test_example_db_basic():
mapping = dict(
json.load(open(fixture_dir / "bw2io_example_db_mapping.json")))
print(mapping)
packages = [
fixture_dir / "bw2io_example_db.zip",
fixture_dir / "ipcc_simple.zip",
]
lca = LCA(
{mapping["Driving an electric car"]: 1},
data_objs=packages,
)
lca.lci()
lca.lcia()
assert lca.supply_array.sum()
assert lca.technosphere_matrix.sum()
assert lca.score
def test_example_db_basic():
fd = fixture_dir / "example_db"
mapping = load_mapping(fd / "mapping.json")
packages = [
fd / "example_db.zip",
fd / "ipcc.zip",
]
lca = LCA(
{mapping[("Mobility example", "Driving an electric car")]: 1},
data_objs=packages,
)
lca.lci()
lca.lcia()
assert lca.supply_array.sum()
assert lca.technosphere_matrix.sum()
assert lca.score
def test_monte_carlo_all_matrices_change():
packages = [
fixture_dir / "mc_basic.zip",
]
mc = LCA({3: 1}, data_objs=packages, use_distributions=True)
mc.lci()
mc.lcia()
a = [
mc.technosphere_matrix.sum(),
mc.biosphere_matrix.sum(),
mc.characterization_matrix.sum()
]
next(mc)
b = [
mc.technosphere_matrix.sum(),
mc.biosphere_matrix.sum(),
mc.characterization_matrix.sum()
]
print(a, b)
for x, y in zip(a, b):
assert x != y
def test_lcia_regionalized_ignored(self):
test_data = {
("t", "1"): {
'exchanges': [{
'amount': 1,
'input': ('t', "2"),
'type': 'technosphere',
}],
},
("t", "2"): {
'exchanges': [{
'amount': 1,
'input': ('biosphere', "1"),
'type': 'biosphere',
}],
},
}
method_data = [
(('biosphere', "1"), 21),
(('biosphere', "1"), 21, config.global_location),
(('biosphere', "1"), 100, "somewhere else"),
]
self.add_basic_biosphere()
test_db = Database("t")
test_db.register()
test_db.write(test_data)
method = Method(("a method", ))
method.register()
method.write(method_data)
lca = LCA({("t", "1"): 1}, ("a method", ))
lca.lci()
lca.lcia()
print(lca.score)
self.assertTrue(np.allclose(42, lca.score))
def test_empty_biosphere_lcia():
biosphere = Database("biosphere")
biosphere.register()
biosphere.write({
("biosphere", "1"): {
'categories': ['things'],
'exchanges': [],
'name': 'an emission',
'type': 'emission',
'unit': 'kg'
}
})
test_data = {
("t", "1"): {
'exchanges': [{
'amount': 1,
'input': ('t', "2"),
'type': 'technosphere',
}],
},
("t", "2"): {
'exchanges': []
},
}
test_db = Database("t")
test_db.register()
test_db.write(test_data)
method = Method(("a method", ))
method.register()
method.write([(('biosphere', "1"), 42)])
lca = LCA({("t", "1"): 1}, ("a method", ))
lca.lci()
with pytest.raises(EmptyBiosphere):
lca.lcia()
def test_empty_biosphere_lcia():
biosphere = Database("biosphere")
biosphere.register()
biosphere.write({
("biosphere", "1"): {
"categories": ["things"],
"exchanges": [],
"name": "an emission",
"type": "emission",
"unit": "kg",
}
})
test_data = {
("t", "1"): {
"exchanges": [{
"amount": 1,
"input": ("t", "2"),
"type": "technosphere",
}],
},
("t", "2"): {
"exchanges": []
},
}
test_db = Database("t")
test_db.register()
test_db.write(test_data)
method = Method(("a method", ))
method.register()
method.write([(("biosphere", "1"), 42)])
lca = LCA({("t", "1"): 1}, ("a method", ))
lca.lci()
with pytest.raises(EmptyBiosphere):
lca.lcia()
def test_lcia_regionalized_ignored(self):
test_data = {
("t", "1"): {
"exchanges": [{
"amount": 1,
"input": ("t", "2"),
"type": "technosphere",
}],
},
("t", "2"): {
"exchanges": [{
"amount": 1,
"input": ("biosphere", "1"),
"type": "biosphere",
}],
},
}
method_data = [
(("biosphere", "1"), 21),
(("biosphere", "1"), 21, config.global_location),
(("biosphere", "1"), 100, "somewhere else"),
]
self.add_basic_biosphere()
test_db = Database("t")
test_db.register()
test_db.write(test_data)
method = Method(("a method", ))
method.register()
method.write(method_data)
lca = LCA({("t", "1"): 1}, ("a method", ))
lca.lci()
lca.lcia()
self.assertTrue(np.allclose(42, lca.score))
def test_empty_biosphere_lcia():
lca = LCA({1: 1}, data_objs=[fixture_dir / "empty_biosphere.zip"])
lca.lci()
assert lca.biosphere_matrix.shape[0] == 0
with pytest.raises(EmptyBiosphere):
lca.lcia()