error message

Author: JamesW1-NHS

backend/src/models/utils/pre_validator_utils.py

@@ -24,7 +24,7 @@ def for_string(
             raise TypeError(f"{field_location} must be a string")
 
         if field_value.isspace():
-            raise ValueError(f"{field_location} must not be whitespace")
+            raise ValueError(f"{field_location} must be a non-empty string")
 
         if defined_length:
             if len(field_value) != defined_length:

backend/tests/testing_utils/pre_validation_test_utils.py

@@ -83,7 +83,7 @@ def test_string_value(
                 valid_json_data,
                 field_location=field_location,
                 invalid_value=invalid_whitespace_string,
-                expected_error_message=f"{field_location} must not be whitespace",
+                expected_error_message=f"{field_location} must be a non-empty string",
             )
 
         # If there is a predefined string length, then test invalid string lengths,