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test(ckpt): isolate conversion launcher utility imports #5003

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Merged
yaoyu-33 merged 1 commit into from
Jul 22, 2026
+11 −1
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test(ckpt): isolate conversion launcher utility imports #5003

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12 changes: 11 additions & 1 deletion tests/unit_tests/conversion/launcher/test_run_conversion.py
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Original file line number Diff line number Diff line change
Expand Up @@ -31,9 +31,10 @@
def _load_run_conversion_module():
cpu_backend = types.ModuleType("cpu_backend")
gpu_backend = types.ModuleType("gpu_backend")
previous_modules = {name: sys.modules.get(name) for name in ("cpu_backend", "gpu_backend", "arguments")}
previous_modules = {name: sys.modules.get(name) for name in ("cpu_backend", "gpu_backend", "arguments", "utils")}
sys.modules["cpu_backend"] = cpu_backend
sys.modules["gpu_backend"] = gpu_backend
sys.modules.pop("utils", None)
sys.path.insert(0, str(SCRIPT_DIR))
try:
spec = importlib.util.spec_from_file_location(
Expand All @@ -52,6 +53,15 @@ def _load_run_conversion_module():
return module, cpu_backend, gpu_backend


def test_loader_restores_preexisting_utils_module(monkeypatch):
preexisting_utils = types.ModuleType("utils")
monkeypatch.setitem(sys.modules, "utils", preexisting_utils)

_load_run_conversion_module()

assert sys.modules["utils"] is preexisting_utils


def test_cpu_import_dispatches_to_cpu_backend():
module, cpu_backend, _ = _load_run_conversion_module()
calls = []
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