- Use spawn in stead of fork so that any jvm will not exist in any child processes and block them from stopping.

- Use poetry for install.

tests/test_multiple.py

@@ -0,0 +1,16 @@
+import numpy as np
+from tiffwrite import IJTiffFile
+from itertools import product
+from contextlib import ExitStack
+from tqdm.auto import tqdm
+
+
+def test_mult(tmp_path):
+    shape = (3, 5, 12)
+    paths = [tmp_path / f'test{i}.tif' for i in range(8)]
+    with ExitStack() as stack:
+        tifs = [stack.enter_context(IJTiffFile(path, shape)) for path in paths]
+        for c, z, t in tqdm(product(range(shape[0]), range(shape[1]), range(shape[2])), total=np.prod(shape)):
+            for tif in tifs:
+                tif.save(np.random.randint(0, 255, (1024, 1024)), c, z, t)
+    assert all([path.exists() for path in paths])

tests/test_single.py

@@ -0,0 +1,11 @@
+import numpy as np
+from tiffwrite import IJTiffFile
+from itertools import product
+
+
+def test_single(tmp_path):
+    path = tmp_path / 'test.tif'
+    with IJTiffFile(path, (3, 4, 5)) as tif:
+        for c, z, t in product(range(3), range(4), range(5)):
+            tif.save(np.random.randint(0, 255, (64, 64)), c, z, t)
+    assert path.exists()