Sediment calibration: Add test on fine data selection for interpolate.

View/sediment_calibration_tab.py

@@ -1569,6 +1569,10 @@ class SedimentCalibrationTab(QWidget):
             self._data_validity_message_box()
             return
 
+        if len(stg.fine_sample_profile) == 0:
+            self._data_validity_message_box()
+            return
+
         data_choice = self.combobox_acoustic_data_choice\
                           .currentIndex()
 
@@ -1659,8 +1663,8 @@ class SedimentCalibrationTab(QWidget):
             .scaledToHeight(32, Qt.SmoothTransformation)
         )
         msgBox.setText(
-            "Please select and valid the sample data with"
-            + "click on 'sample plot' button"
+            "Please select and valid the find and sand"
+            + "sample data with click on 'sample plot' button"
         )
         msgBox.setStandardButtons(QMessageBox.Ok)
         msgBox.exec()