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ttulttul-ComfyUI-Modal/tests/test_serialization.py
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Python

"""Tests for Modal payload serialization helpers."""
from __future__ import annotations
from typing import Any
import pytest
def test_nested_payload_round_trip(serialization_module: Any) -> None:
"""Nested JSON-safe values should survive a full round trip."""
payload = {
"integer": 7,
"text": "hello",
"items": [1, True, None, {"nested": ("a", "b")}],
"raw_bytes": b"abc",
}
encoded = serialization_module.serialize_node_inputs(payload)
decoded = serialization_module.deserialize_node_inputs(encoded)
assert decoded["integer"] == 7
assert decoded["text"] == "hello"
assert decoded["items"][3]["nested"] == ("a", "b")
assert decoded["raw_bytes"] == b"abc"
def test_tensor_round_trip(serialization_module: Any) -> None:
"""Torch tensors should round-trip through the safetensors transport."""
torch = pytest.importorskip("torch")
tensor = torch.arange(6, dtype=torch.float32).reshape(2, 3)
encoded = serialization_module.serialize_node_outputs((tensor,))
decoded = serialization_module.deserialize_node_outputs(encoded)
assert len(decoded) == 1
assert torch.equal(decoded[0], tensor)
def test_serialize_mapping_supports_nested_tensors(serialization_module: Any) -> None:
"""Transport mapping helpers should encode tensor values safely."""
torch = pytest.importorskip("torch")
tensor = torch.arange(4, dtype=torch.float32).reshape(2, 2)
payload = serialization_module.serialize_mapping(
{
"phase": "executing",
"preview": tensor,
}
)
assert payload["phase"] == "executing"
decoded_tensor = serialization_module.deserialize_value(payload["preview"])
assert torch.equal(decoded_tensor, tensor)
def test_coerce_serialized_node_outputs_accepts_raw_tensor_outputs(serialization_module: Any) -> None:
"""Raw node outputs should be normalized into transport bytes before crossing the wire."""
torch = pytest.importorskip("torch")
tensor = torch.arange(3, dtype=torch.float32)
payload = serialization_module.coerce_serialized_node_outputs((tensor,))
decoded = serialization_module.deserialize_node_outputs(payload)
assert len(decoded) == 1
assert torch.equal(decoded[0], tensor)
def test_split_mapped_value_accepts_python_lists(serialization_module: Any) -> None:
"""Mapped execution should split list inputs item-by-item without changing order."""
items = serialization_module.split_mapped_value(["a", "b", "c"], "STRING")
assert items == ["a", "b", "c"]
def test_split_and_join_tensor_batch_for_mapped_execution(serialization_module: Any) -> None:
"""Mapped execution should split and reassemble tensor batches on the leading dimension."""
torch = pytest.importorskip("torch")
batch = torch.arange(24, dtype=torch.float32).reshape(3, 2, 4)
split_items = serialization_module.split_mapped_value(batch, "IMAGE")
rejoined = serialization_module.join_mapped_values(split_items, "IMAGE", is_list=False)
assert len(split_items) == 3
assert all(item.shape[0] == 1 for item in split_items)
assert torch.equal(rejoined, batch)
def test_split_and_join_latent_batch_for_mapped_execution(serialization_module: Any) -> None:
"""Mapped execution should split and reassemble ComfyUI LATENT dictionaries."""
torch = pytest.importorskip("torch")
latent = {
"samples": torch.arange(48, dtype=torch.float32).reshape(3, 4, 2, 2),
"batch_index": [0, 1, 2],
}
split_items = serialization_module.split_mapped_value(latent, "LATENT")
rejoined = serialization_module.join_mapped_values(split_items, "LATENT", is_list=False)
assert len(split_items) == 3
assert all(item["samples"].shape[0] == 1 for item in split_items)
assert torch.equal(rejoined["samples"], latent["samples"])
assert rejoined["batch_index"] == [0, 1, 2]