- base & view model for imread

- transforms bugfix
- implement (nan)var and (nan)std
- add tests

tests/test_open.py

@@ -1,12 +1,25 @@
+import pickle
 import pytest
 from pathlib import Path
+from multiprocessing import active_children
 from ndbioimage import Imread, ReaderNotFoundError
 
 
-@pytest.mark.parametrize("file", (Path(__file__).parent / 'files').iterdir())
+@pytest.mark.parametrize('file', (Path(__file__).parent / 'files').iterdir())
 def test_open(file):
     try:
         with Imread(file) as im:
-            print(im[dict(c=0, z=0, t=0)].mean())
+            mean = im[dict(c=0, z=0, t=0)].mean()
+            b = pickle.dumps(im)
+            jm = pickle.loads(b)
+            assert jm[dict(c=0, z=0, t=0)].mean() == mean
+            v = im.view()
+            assert v[dict(c=0, z=0, t=0)].mean() == mean
+            b = pickle.dumps(v)
+            w = pickle.loads(b)
+            assert w[dict(c=0, z=0, t=0)].mean() == mean
     except ReaderNotFoundError:
-        assert len(Imread.__subclasses__()), "No subclasses for Imread found."
+        assert len(Imread.__subclasses__()), 'No subclasses for Imread found.'
+
+    for child in active_children():
+        child.kill()