test

weldx_widgets/generic.py

@@ -134,7 +134,7 @@ def to_tree(self) -> dict:
 
     @staticmethod
     def convert_to_numpy_array(input_str):
-        if not WidgetTimeSeries.is_safe_nd_array(input_str):
+        if not is_safe_nd_array(input_str):
             raise RuntimeError(f"input_str '{input_str}' is not a safe array")
         a = np.array(ast.literal_eval(input_str))
         return a
@@ -159,6 +159,12 @@ def from_tree(self, tree: dict):
         self.base_data.text_value = repr(list(ts.data.magnitude))
         self.base_unit.text_value = format(ts.data.units, "~")
 
+def is_safe_nd_array(input_str : str):
+    """Check if input_string is a numerical array (allowing floats [with scientific notation), and ints."""
+    # Regex pattern to match 1-D and N-D arrays with numbers
+    pattern = r'^\s*(\[\s*(?:(-?\d+(\.\d+)?([eE][+-]?\d+)?|\[\s*.*?\s*\])\s*(,\s*)?)*\]\s*|\s*(-?\d+(\.\d+)?([eE][+-]?\d+)?)(\s*,\s*(-?\d+(\.\d+)?([eE][+-]?\d+)?))*\s*)?\s*$'
+
+    return bool(re.match(pattern, input_str))
 
 def download_button(
     content: bytes,

weldx_widgets/tests/test_generic.py

@@ -3,7 +3,9 @@
 import pandas as pd
 
 import weldx
+
 from weldx_widgets import WidgetTimeSeries
+from weldx_widgets.generic import is_safe_nd_array
 
 
 def test_import_export():
@@ -19,3 +21,12 @@ def test_import_export():
 
     ts2 = w.to_tree()
     assert ts2["timeseries"] == ts
+
+
+def test_is_safe_nd_array():
+    assert is_safe_nd_array("1, 2, 3")
+    assert is_safe_nd_array("[1, 2, 3]")
+    assert is_safe_nd_array("[[1, 2, 3], [4, 5, 6]]")
+    assert is_safe_nd_array("[[1.2e3, -4.5E-2], [3.4]]")
+    assert not is_safe_nd_array("[1, 2, 'evil']")
+    assert not is_safe_nd_array("1, 2, (x) => x")