Added dummy skyoffsets for testing

pyobs/images/processors/offsets/__init__.py

@@ -10,6 +10,7 @@
 from .projected import ProjectedOffsets
 from .fitsheader import FitsHeaderOffsets
 from .dummyoffsets import DummyOffsets
+from .dummyskyoffsets import DummySkyOffsets
 
 __all__ = [
     "Offsets",
@@ -19,4 +20,5 @@
     "FitsHeaderOffsets",
     "BrightestStarOffsets",
     "DummyOffsets",
+    "DummySkyOffsets"
 ]

pyobs/images/processors/offsets/dummyskyoffsets.py

@@ -0,0 +1,24 @@
+from copy import copy
+from typing import Any, Union, Dict
+
+from astropy.coordinates import SkyCoord
+
+from pyobs.images import Image
+from pyobs.images.meta import SkyOffsets
+from pyobs.images.processors.offsets import Offsets
+from pyobs.object import get_object
+
+
+class DummySkyOffsets(Offsets):
+    def __init__(self, coord0: Union[SkyCoord, Dict[str, Any]], coord1: Union[SkyCoord, Dict[str, Any]], **kwargs: Any) -> None:
+        super().__init__(**kwargs)
+        sky_coord0 = get_object(coord0, SkyCoord)
+        sky_coord1 = get_object(coord1, SkyCoord)
+        self._offset = SkyOffsets(sky_coord0, sky_coord1)
+
+    async def __call__(self, image: Image) -> Image:
+        image.set_meta(copy(self._offset))
+        return image
+
+
+__all__ = ["DummySkyOffsets"]

tests/images/processors/offsets/test_dummyskyoffsets.py

@@ -0,0 +1,25 @@
+import pytest
+from astropy.coordinates import SkyCoord
+
+from pyobs.images import Image
+from pyobs.images.meta import SkyOffsets
+from pyobs.images.processors.offsets import DummySkyOffsets
+
+
+@pytest.mark.asyncio
+async def test_call():
+    coord0 = SkyCoord(alt=90.0, az=0.0, unit="degree", frame="altaz")
+    coord1 = SkyCoord(alt=80.0, az=0.0, unit="degree", frame="altaz")
+
+    offsets = DummySkyOffsets(coord0, coord1)
+    image = Image()
+
+    result_image = await offsets(image)
+
+    result_offset = result_image.get_meta(SkyOffsets)
+
+    assert result_offset.coord0.alt.deg == 90.0
+    assert result_offset.coord0.az.deg == 0.0
+
+    assert result_offset.coord1.alt.deg == 80.0
+    assert result_offset.coord1.az.deg == 0.0