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conformance: make TypeVarTuple test not depend on TypeVar inference behavior #2234

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JelleZijlstra merged 3 commits into from
Apr 2, 2026
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conformance: make TypeVarTuple test not depend on TypeVar inference behavior #2234

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conformance: make TypeVarTuple test not depend on TypeVar inference b…
JelleZijlstra Apr 2, 2026
7881283
update the others too
JelleZijlstra Apr 2, 2026
b819989
update
JelleZijlstra Apr 2, 2026
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4 changes: 2 additions & 2 deletions conformance/results/ty/generics_typevartuple_concat.toml
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Original file line number Diff line number Diff line change
@@ -1,8 +1,8 @@
conformance_automated = "Fail"
conformant = "Unsupported"
errors_diff = """
Line 52: Unexpected errors ['generics_typevartuple_concat.py:52:1: error[type-assertion-failure] Type `tuple[@Todo(TypeVarTuple), ...]` does not match asserted type `tuple[int, bool, str]`']
Line 53: Unexpected errors ['generics_typevartuple_concat.py:53:5: error[type-assertion-failure] Type `tuple[@Todo(TypeVarTuple), ...]` does not match asserted type `tuple[int, bool, str]`']
"""
output = """
generics_typevartuple_concat.py:52:1: error[type-assertion-failure] Type `tuple[@Todo(TypeVarTuple), ...]` does not match asserted type `tuple[int, bool, str]`
generics_typevartuple_concat.py:53:5: error[type-assertion-failure] Type `tuple[@Todo(TypeVarTuple), ...]` does not match asserted type `tuple[int, bool, str]`
"""
5 changes: 3 additions & 2 deletions conformance/tests/generics_typevartuple_concat.py
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Original file line number Diff line number Diff line change
Expand Up @@ -48,8 +48,9 @@ def prefix_tuple(x: T, y: tuple[*Ts]) -> tuple[T, *Ts]:
raise NotImplementedError


z = prefix_tuple(x=0, y=(True, "a"))
assert_type(z, tuple[int, bool, str])
def call_prefix_tuple(x: int, y: bool, z: str):
result = prefix_tuple(x=x, y=(y, z))
assert_type(result, tuple[int, bool, str])


def move_first_element_to_last(tup: tuple[T, *Ts]) -> tuple[*Ts, T]:
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