Test that precise EVSs are never initializers

Author: Owen Jones

regression/LVSA/lvsa_driver.py

@@ -101,8 +101,11 @@ def check_contains_per_field_evs(self, expected_number=1, is_initializer=False,
             matches = [x for x in matches if x.label.endswith(label)]
         assert expected_number == len(matches)
 
-    def check_contains_precise_evs(self, expected_number=1, access_path=None, label_suffix=None):
+    def check_contains_precise_evs(self, expected_number=1, is_initializer=False, access_path=None, label_suffix=None):
         matches = [x for x in self.external_value_sets if x.evs_type == EvsType.precise]
+        if is_initializer is not None:
+            # Expect True or False
+            matches = [x for x in matches if x.is_initializer == is_initializer]
         if access_path is not None:
             # Expect an array of strings, e.g. ['.a', '.b']
             matches = [x for x in matches if x.access_path_entries == access_path]