def test_resources_from_json():
"Resources.from_json consumes a data structure and produces the expected result"
json = {
"managed": ["ListThing=*", "Thing=*"],
"resources": [
{"kind": "ListThing", "listThingId": "lt", "things": ["1", "2"]},
{"kind": "Thing", "thingId": "x", "value": "1"},
{"kind": "Thing", "thingId": "y", "value": "1"},
],
}
assert Resources.from_json(json) == Resources(
[Thing("x", "1"), ListThing("lt", ["1", "2"]), Thing("y", "1")],
["ListThing=*", "Thing=*"],
)
def test_resources_to_json():
"Resources.to_json produces the expected data structure"
rsrcs = Resources(
[Thing("x", "1"), Thing("y", "1"), ListThing("lt", ["1", "2"])],
["Thing=*", "ListThing=*"],
)
assert rsrcs.to_json() == {
"managed": ["Thing=*", "ListThing=*"],
"resources": [
{"kind": "ListThing", "listThingId": "lt", "things": ["1", "2"]},
{"kind": "Thing", "thingId": "x", "value": "1"},
{"kind": "Thing", "thingId": "y", "value": "1"},
],
}
def test_resources_str():
"Resources are stringified in order"
resources = Resources(
[Thing("x", "1"), Thing("y", "1")], ["Thing=*", "OtherStuff=.*"]
)
assert str(resources) == textwrap.dedent(
"""\
managed:
- Thing=*
- OtherStuff=.*
resources:
Thing=x:
thingId: x
value: 1
Thing=y:
thingId: y
value: 1"""
)
def test_resources_repr():
"Resources repr is pretty JSON"
resources = Resources([Thing("x", "1"), Thing("y", "1")], [".*"])
assert json.loads(repr(resources)) == json.loads(
"""\
{
"managed": [
".*"
],
"resources": [
{
"kind": "Thing",
"thingId": "x",
"value": "1"
},
{
"kind": "Thing",
"thingId": "y",
"value": "1"
}
]
}"""
)
def test_resources_verify_unmanaged_prohibited():
"Duplicate resources are not allowed"
with pytest.raises(RuntimeError) as exc:
Resources([Thing("x", "1"), ListThing("y", [])], ["Thing=*"])
assert "unmanaged resources: ListThing=y" in str(exc.value)
def test_resources_verify_duplicates_prohibited():
"Duplicate resources are not allowed"
rsrcs = Resources([Thing("x", "1")], [".*"])
with pytest.raises(RuntimeError) as exc:
rsrcs.add(Thing("x", "1"))
assert "Cannot merge resources of kind Thing" in str(exc.value)
def test_resources_verify_duplicates_prohibited_constructor():
"Duplicate resources are not allowed"
with pytest.raises(RuntimeError) as exc:
Resources([Thing("x", "1"), Thing("x", "1")], [".*"])
assert "duplicate resources" in str(exc.value)
def test_resources_manages():
"Managing a resource adds it to the list of managed resources"
rsrcs = Resources([], [])
rsrcs.manage("Thing=x")
assert rsrcs.managed.matches("Thing=x")
assert not rsrcs.managed.matches("Thing=y")
def test_resources_add_unmanaged_prohibited():
"Adding an unmanaged resource is an error"
with pytest.raises(RuntimeError) as exc:
rsrcs = Resources([], ["OtherStuff"])
rsrcs.add(Thing("x", "1"))
assert "unmanaged resource: Thing=x" in str(exc.value)
def test_resources_merge():
"Resources merge when added"
coll = Resources([], [".*"])
coll.add(MergeableThing(thingId="a", value="artichoke"))
coll.add(MergeableThing(thingId="a", value="aardvark"))
assert coll.resources[0] == MergeableThing(thingId="a", value="artichoke|aardvark")
def test_resources_filter():
coll = Resources(
[Thing("abc", "3"), Thing("abd", "1"), Thing("dbc", "2")], ["Thing=*"]
).filter("hin.=a")
assert [r.thingId for r in coll] == ["abc", "abd"]
def test_resources_sorted():
"Resources are always sorted"
coll = Resources([Thing("z", "3"), Thing("x", "1"), Thing("y", "2")], ["Thing=*"])
assert [r.thingId for r in coll] == ["x", "y", "z"]