feat: indie status page MVP -- FastAPI + SQLite
- 8 DB models (services, incidents, monitors, subscribers, etc.) - Full CRUD API for services, incidents, monitors - Public status page with live data - Incident detail page with timeline - API key authentication - Uptime monitoring scheduler - 13 tests passing - TECHNICAL_DESIGN.md with full spec
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IndieStatusBot
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134
venv/lib/python3.11/site-packages/mypy/test/testconstraints.py
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134
venv/lib/python3.11/site-packages/mypy/test/testconstraints.py
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from __future__ import annotations
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from mypy.constraints import SUBTYPE_OF, SUPERTYPE_OF, Constraint, infer_constraints
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from mypy.test.helpers import Suite
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from mypy.test.typefixture import TypeFixture
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from mypy.types import Instance, TupleType, UnpackType
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class ConstraintsSuite(Suite):
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def setUp(self) -> None:
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self.fx = TypeFixture()
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def test_no_type_variables(self) -> None:
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assert not infer_constraints(self.fx.o, self.fx.o, SUBTYPE_OF)
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def test_basic_type_variable(self) -> None:
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fx = self.fx
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for direction in [SUBTYPE_OF, SUPERTYPE_OF]:
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assert infer_constraints(fx.gt, fx.ga, direction) == [
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Constraint(type_var=fx.t, op=direction, target=fx.a)
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]
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def test_basic_type_var_tuple_subtype(self) -> None:
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fx = self.fx
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assert infer_constraints(
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Instance(fx.gvi, [UnpackType(fx.ts)]), Instance(fx.gvi, [fx.a, fx.b]), SUBTYPE_OF
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) == [
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Constraint(type_var=fx.ts, op=SUBTYPE_OF, target=TupleType([fx.a, fx.b], fx.std_tuple))
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]
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def test_basic_type_var_tuple(self) -> None:
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fx = self.fx
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assert set(
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infer_constraints(
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Instance(fx.gvi, [UnpackType(fx.ts)]), Instance(fx.gvi, [fx.a, fx.b]), SUPERTYPE_OF
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)
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) == {
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Constraint(
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type_var=fx.ts, op=SUPERTYPE_OF, target=TupleType([fx.a, fx.b], fx.std_tuple)
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),
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Constraint(
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type_var=fx.ts, op=SUBTYPE_OF, target=TupleType([fx.a, fx.b], fx.std_tuple)
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),
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}
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def test_type_var_tuple_with_prefix_and_suffix(self) -> None:
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fx = self.fx
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assert set(
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infer_constraints(
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Instance(fx.gv2i, [fx.t, UnpackType(fx.ts), fx.s]),
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Instance(fx.gv2i, [fx.a, fx.b, fx.c, fx.d]),
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SUPERTYPE_OF,
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)
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) == {
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Constraint(type_var=fx.t, op=SUPERTYPE_OF, target=fx.a),
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Constraint(
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type_var=fx.ts, op=SUPERTYPE_OF, target=TupleType([fx.b, fx.c], fx.std_tuple)
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),
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Constraint(
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type_var=fx.ts, op=SUBTYPE_OF, target=TupleType([fx.b, fx.c], fx.std_tuple)
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),
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Constraint(type_var=fx.s, op=SUPERTYPE_OF, target=fx.d),
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}
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def test_unpack_homogeneous_tuple(self) -> None:
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fx = self.fx
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assert set(
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infer_constraints(
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Instance(fx.gvi, [UnpackType(Instance(fx.std_tuplei, [fx.t]))]),
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Instance(fx.gvi, [fx.a, fx.b]),
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SUPERTYPE_OF,
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)
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) == {
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Constraint(type_var=fx.t, op=SUPERTYPE_OF, target=fx.a),
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Constraint(type_var=fx.t, op=SUBTYPE_OF, target=fx.a),
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Constraint(type_var=fx.t, op=SUPERTYPE_OF, target=fx.b),
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Constraint(type_var=fx.t, op=SUBTYPE_OF, target=fx.b),
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}
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def test_unpack_homogeneous_tuple_with_prefix_and_suffix(self) -> None:
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fx = self.fx
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assert set(
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infer_constraints(
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Instance(fx.gv2i, [fx.t, UnpackType(Instance(fx.std_tuplei, [fx.s])), fx.u]),
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Instance(fx.gv2i, [fx.a, fx.b, fx.c, fx.d]),
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SUPERTYPE_OF,
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)
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) == {
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Constraint(type_var=fx.t, op=SUPERTYPE_OF, target=fx.a),
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Constraint(type_var=fx.s, op=SUPERTYPE_OF, target=fx.b),
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Constraint(type_var=fx.s, op=SUBTYPE_OF, target=fx.b),
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Constraint(type_var=fx.s, op=SUPERTYPE_OF, target=fx.c),
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Constraint(type_var=fx.s, op=SUBTYPE_OF, target=fx.c),
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Constraint(type_var=fx.u, op=SUPERTYPE_OF, target=fx.d),
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}
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def test_unpack_with_prefix_and_suffix(self) -> None:
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fx = self.fx
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assert set(
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infer_constraints(
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Instance(fx.gv2i, [fx.u, fx.t, fx.s, fx.u]),
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Instance(fx.gv2i, [fx.a, fx.b, fx.c, fx.d]),
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SUPERTYPE_OF,
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)
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) == {
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Constraint(type_var=fx.u, op=SUPERTYPE_OF, target=fx.a),
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Constraint(type_var=fx.t, op=SUPERTYPE_OF, target=fx.b),
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Constraint(type_var=fx.t, op=SUBTYPE_OF, target=fx.b),
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Constraint(type_var=fx.s, op=SUPERTYPE_OF, target=fx.c),
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Constraint(type_var=fx.s, op=SUBTYPE_OF, target=fx.c),
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Constraint(type_var=fx.u, op=SUPERTYPE_OF, target=fx.d),
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}
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def test_unpack_tuple_length_non_match(self) -> None:
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fx = self.fx
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assert set(
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infer_constraints(
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Instance(fx.gv2i, [fx.u, fx.t, fx.s, fx.u]),
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Instance(fx.gv2i, [fx.a, fx.b, fx.d]),
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SUPERTYPE_OF,
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)
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# We still get constraints on the prefix/suffix in this case.
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) == {
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Constraint(type_var=fx.u, op=SUPERTYPE_OF, target=fx.a),
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Constraint(type_var=fx.u, op=SUPERTYPE_OF, target=fx.d),
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}
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def test_var_length_tuple_with_fixed_length_tuple(self) -> None:
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fx = self.fx
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assert not infer_constraints(
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TupleType([fx.t, fx.s], fallback=Instance(fx.std_tuplei, [fx.o])),
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Instance(fx.std_tuplei, [fx.a]),
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SUPERTYPE_OF,
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)
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