Merge pull request #132 from lguerard/fix/128_processing_settings

Validate processing settings

Fixes #128

Author: ehrenfeu

src/imcflibs/imagej/bdv.py

@@ -731,6 +731,22 @@ def get_processing_settings(dimension, selection, value, range_end):
     tuple of str
         processing_option, dimension_select
     """
+    processing_option = dimension_select = ""
+
+    # Validate inputs according to the function docstring
+    valid_dimensions = ("angle", "channel", "illumination", "tile", "timepoint")
+    if dimension not in valid_dimensions:
+        raise ValueError(
+            "Invalid dimension '%s', expected one of: %s"
+            % (dimension, ", ".join(valid_dimensions))
+        )
+
+    valid_selections = ("single", "multiple", "range")
+    if selection not in valid_selections:
+        raise ValueError(
+            "Invalid selection '%s', expected one of: %s"
+            % (selection, ", ".join(valid_selections))
+        )
 
     if selection == "single":
         processing_option = SINGLE % dimension