def test_dependencies_injection_errors():
dependencies = Dependencies(other=10)
with pytest.raises(MissingDependency, match='^c_inject$'):
dependencies(lambda a, b, c_inject: a + b + c_inject, 10, 22)
assert dependencies(lambda a, b, c_service, d: a + b + c_service + d,
10,
22,
c_service=2,
d=10) == 44
def test_dependencies_injection_with_decorator():
dependencies1 = Dependencies(c=42, other=10)
dependencies2 = Dependencies(c=43)
@dependencies1.inject
def f1(a, b, c):
return a + b + c
assert f1(10, 22, c=10) == 42
@dependencies1.inject
def f2(a, b, c_inject):
return a + b + c_inject
assert f2(10, 22) == 74
@dependencies2.inject
def f3(a, b, c_inject, d):
return a + b + c_inject + d
assert f3(10, 22, d=10) == 85
assert f3(10, 22, c_inject=2, d=10) == 44
def test_dependencies_injection_to_lambdas():
dependencies = Dependencies(c=42)
assert dependencies(lambda a, b, c: a + b + c, 10, 22, c=10) == 42
assert dependencies(lambda a, b, c_inject: a + b + c_inject, 10, 22) == 74
assert dependencies(lambda a, b, c_inject, d: a + b + c_inject + d,
10,
22,
d=10) == 84
assert dependencies(lambda a, b, c_inject, d: a + b + c_inject + d,
10,
22,
c_inject=2,
d=10) == 44
def test_dependencies_injection_with_postfix():
dependencies = Dependencies('service', c=42)
assert dependencies(lambda a, b, c: a + b + c, 10, 22, c=10) == 42
assert dependencies(lambda a, b, c_service: a + b + c_service, 10,
22) == 74
assert dependencies(lambda a, b, c_service, d: a + b + c_service + d,
10,
22,
d=10) == 84
assert dependencies(lambda a, b, c_service, d: a + b + c_service + d,
10,
22,
c_service=2,
d=10) == 44
def test_dependencies_injection_to_functions():
dependencies = Dependencies(c=42, other=10)
def f1(a, b, c):
return a + b + c
assert dependencies(f1, 10, 22, c=10) == 42
def f2(a, b, c_inject):
return a + b + c_inject
assert dependencies(f2, 10, 22) == 74
def f3(a, b, c_inject, d):
return a + b + c_inject + d
assert dependencies(f3, 10, 22, d=10) == 84
assert dependencies(f3, 10, 22, c_inject=2, d=10) == 44
def test_dependencies_injection_to_object():
dependencies = Dependencies(c=42)
class C1(object):
def __init__(self, a, b, c):
self.value = a + b + c
assert dependencies(C1, 10, 22, c=10).value == 42
class C2(object):
def __init__(self, a, b, c_inject):
self.value = a + b + c_inject
assert dependencies(C2, 10, 22).value == 74
class C3(object):
def __init__(self, a, b, c_inject, d):
self.value = a + b + c_inject + d
assert dependencies(C3, 10, 22, d=10).value == 84
assert dependencies(C3, 10, 22, c_inject=2, d=10).value == 44
def test_dependencies_injection_with_default_values():
dependencies = Dependencies(c=42)
assert dependencies(lambda a, d_inject=42: a + d_inject, 10) == 52
assert dependencies(
lambda a, c_inject=10, d_inject=42: a + c_inject + d_inject, 10) == 94