fix "started" line in symptom summary list

This should say "ago" after the relative dates

Author: MatMoore

manage_breast_screening/mammograms/presenters/medical_information_presenter.py

@@ -5,6 +5,7 @@
 from manage_breast_screening.core.template_helpers import multiline_content
 from manage_breast_screening.core.utils.date_formatting import format_approximate_date
 from manage_breast_screening.participants.models.symptom import (
+    RelativeDateChoices,
     SymptomAreas,
     SymptomType,
 )
@@ -33,10 +34,26 @@ def _present_symptom_area(symptom):
             location = symptom.get_area_display()
         return location
 
+    @staticmethod
+    def _present_started(symptom):
+        match symptom.when_started:
+            case RelativeDateChoices.SINCE_A_SPECIFIC_DATE:
+                if symptom.year_started is None or symptom.month_started is None:
+                    # Shouldn't happen unless there is a bug in data entry
+                    return "Since a specific date"
+
+                return format_approximate_date(
+                    symptom.year_started, symptom.month_started
+                )
+            case RelativeDateChoices.NOT_SURE:
+                return "Not sure"
+            case _:
+                return symptom.get_when_started_display() + " ago"
+
     @classmethod
     def from_symptom(cls, symptom):
         location = cls._present_symptom_area(symptom)
-        started = symptom.get_when_started_display()
+        started = cls._present_started(symptom)
         if symptom.year_started is not None and symptom.month_started is not None:
             started = format_approximate_date(
                 symptom.year_started, symptom.month_started

manage_breast_screening/mammograms/tests/presenters/test_medical_information_presenter.py

@@ -41,7 +41,7 @@ def test_returns_symptoms(self, area, expected_location):
                 symptom_type_id="lump",
                 symptom_type_name="Lump",
                 location_line=expected_location,
-                started_line="Less than 3 months",
+                started_line="Less than 3 months ago",
                 investigated_line="Not investigated",
             ),
         ]
@@ -63,7 +63,7 @@ def test_formats_area(self):
                 symptom_type_id="lump",
                 symptom_type_name="Lump",
                 location_line="Other: abc",
-                started_line="Less than 3 months",
+                started_line="Less than 3 months ago",
                 investigated_line="Not investigated",
             ),
         ]
@@ -174,7 +174,7 @@ def test_formats_for_summary_list(self):
                     "text": "Swelling or shape change",
                 },
                 "value": {
-                    "html": "Both breasts<br>Less than 3 months<br>Not investigated",
+                    "html": "Both breasts<br>Less than 3 months ago<br>Not investigated",
                 },
             },
         ]