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Add test for action returning an NDArray #230

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Add test for action returning an NDArray #230

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16 changes: 16 additions & 0 deletions tests/test_numpy_type.py
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Original file line number Diff line number Diff line change
Expand Up @@ -2,6 +2,7 @@

from pydantic import BaseModel, RootModel
import numpy as np
from fastapi.testclient import TestClient

from labthings_fastapi.testing import create_thing_without_server
from labthings_fastapi.types.numpy import NDArray, DenumpifyingDict
Expand Down Expand Up @@ -70,6 +71,10 @@ class MyNumpyThing(lt.Thing):
def action_with_arrays(self, a: NDArray) -> NDArray:
return a * 2

@lt.action
def read_array(self) -> NDArray:
return np.array([1, 2])


def test_thing_description():
"""Make sure the TD validates when numpy types are used."""
Expand Down Expand Up @@ -102,3 +107,14 @@ def test_rootmodel():
m = ArrayModel(root=input)
assert isinstance(m.root, np.ndarray)
assert (m.model_dump() == [0, 1, 2]).all()


def test_numpy_over_http():
"""Read numpy array over http."""
server = lt.ThingServer({"np_thing": MyNumpyThing})
with TestClient(server.app) as client:
np_thing_client = lt.ThingClient.from_url("/np_thing/", client=client)

array = np_thing_client.read_array()
assert isinstance(array, np.ndarray)
assert np.array_equal(array, np.array([1, 2]))
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