728aa12d07
I'm now testing camera metadata and stage functionality. This is only using the simulated HW - but it's a start. It would be good to add tests for the camera-stage mapping Thing, though that may require speeding up the stage.
54 lines
2 KiB
Python
54 lines
2 KiB
Python
import json
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import tempfile
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from fastapi import Depends, FastAPI
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from fastapi.testclient import TestClient
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from labthings_fastapi.client import ThingClient
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from PIL import Image
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import piexif
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from openflexure_microscope_server.server import ThingServer
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from openflexure_microscope_server.things.camera.simulation import SimulatedCamera
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from openflexure_microscope_server.things.stage.dummy import DummyStage
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from openflexure_microscope_server.things.autofocus import AutofocusThing
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temp_folder = tempfile.TemporaryDirectory()
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server = ThingServer(temp_folder.name)
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server.add_thing(SimulatedCamera(), "/camera/")
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server.add_thing(DummyStage(), "/stage/")
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server.add_thing(AutofocusThing(), "/autofocus/")
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def test_autofocus():
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with TestClient(server.app) as client:
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autofocus = ThingClient.from_url("/autofocus/", client)
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_ = autofocus.fast_autofocus()
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def test_grab_jpeg():
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with TestClient(server.app) as client:
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camera = ThingClient.from_url("/camera/", client)
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blob = camera.grab_jpeg()
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_image = Image.open(blob.open())
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def test_capture_jpeg_metadata():
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with TestClient(server.app) as client:
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camera = ThingClient.from_url("/camera/", client)
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blob = camera.capture_jpeg()
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image = Image.open(blob.open())
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exif_dict = piexif.load(image.info["exif"])
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encoded_metadata = exif_dict["Exif"][piexif.ExifIFD.UserComment]
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metadata = json.loads(encoded_metadata)
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assert "position" in metadata["/stage/"]
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def test_stage():
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with TestClient(server.app) as client:
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stage = ThingClient.from_url("/stage/", client)
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start = stage.position
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move = {"x": 1, "y": 2, "z": 3}
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stage.move_relative(**move)
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pos = stage.position
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for s, m, p in zip(start.values(), move.values(), pos.values()):
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assert s + m == p
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stage.move_relative(**{k: -v for k, v in move.items()})
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pos = stage.position
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for s, p in zip(start.values(), pos.values()):
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assert s == p
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