[io][spec] add test on mu once divided by the monitor. Can contain some infinite values

est/core/process/pymca/normalization.py

@@ -160,7 +160,8 @@ class PyMca_normalization(Process):
         self._advancement.startProcess()
         self._pool_process(xas_obj=_xas_obj)
         self._advancement.endProcess()
-        assert _xas_obj.normalized_energy is not None
+        if _xas_obj.normalized_energy is None:
+            raise ValueError("Fail to compute normalize energy")
         self.register_process(
             _xas_obj,
             data_keys=(

est/io/utils/spec.py

@@ -107,7 +107,14 @@ def read_spectrum(
             monitor = spec_file.data_column_by_name(
                 scan_index=i_data, label=monitor_col_name
             )
+
             mu = mu / monitor
+            if numpy.any(mu == numpy.inf) or numpy.any(mu == -numpy.inf):
+                _logger.warning(
+                    "found inf values after mu division by the monitor. Replace them by 0"
+                )
+                mu[mu == numpy.inf] = 0
+                mu[mu == -numpy.inf] = 0
 
         return energy, numpy.asarray(mu)
     return energy, mu