Prioritize investigation hypotheses by confidence after bootstrap

tests/test_investigation_scheduler.py

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+import copy
+
+from viano_bug_analysis.analysis.investigation_scheduler import priority_order
+
+
+def hypothesis(confidence='unassessed',iterations=1):
+    return {'confidence':confidence,'iterations':iterations}
+
+
+def order(hypotheses):
+    return [hid for _,hid in priority_order(hypotheses)]
+
+
+def test_bootstrap_turns_precede_already_strong_hypotheses():
+    states={'H1':hypothesis('strongly_supported'),'H2':hypothesis(iterations=0),'H3':hypothesis(iterations=0)}
+    assert order(states)==['H2','H3','H1']
+    states['H2']['iterations']=1
+    assert order(states)==['H3','H1','H2']
+
+
+def test_confidence_rises_and_falls_without_changing_budget_or_state():
+    states={'H1':hypothesis('plausible'),'H2':hypothesis('supported'),'H3':hypothesis('weak')}
+    before=copy.deepcopy(states)
+    assert order(states)==['H2','H1','H3']
+    assert states==before
+    states['H2']['confidence']='weakened'
+    assert order(states)==['H1','H3','H2']
+    states['H3']['confidence']='strongly_supported'
+    assert order(states)==['H3','H1','H2']
+
+
+def test_equal_confidence_uses_numeric_hypothesis_id_not_rotation_or_string_sort():
+    states={hid:hypothesis('supported') for hid in ['H10','H5','H3','H2','H1']}
+    assert order(states)==['H1','H2','H3','H5','H10']
+    assert dict(priority_order(states))[0]=='H1'
+
+
+def test_unassessed_alternative_is_preferred_over_weakened_candidate():
+    assert order({'H1':hypothesis('weak'),'H2':hypothesis(),'H3':hypothesis('weakened')})==['H2','H1','H3']