diff --git a/test/elite_scoring_rule_test.dart b/test/elite_scoring_rule_test.dart
index 9e7e9a5..af5e1c6 100644
--- a/test/elite_scoring_rule_test.dart
+++ b/test/elite_scoring_rule_test.dart
@@ -30,26 +30,55 @@ void main() {
     });
   });
 
-  test('交互绳DJ与DT展示不同的难度等级', () {
+  test('交互绳DJ含0级间歇，DJ与DT的1至5级均含减、标准、加档', () {
     final dj = JudgeAccounts.find('DD-DJ1')!;
     final dt = JudgeAccounts.find('DD-DT1')!;
 
     expect(EliteScoringRuleCatalog.difficultyLevels(dj), [
       '0',
+      '1-',
       '1',
+      '1+',
+      '2-',
       '2',
+      '2+',
+      '3-',
       '3',
+      '3+',
+      '4-',
       '4',
+      '4+',
+      '5-',
       '5',
+      '5+',
     ]);
     expect(EliteScoringRuleCatalog.difficultyLevels(dt), [
+      '1-',
       '1',
+      '1+',
+      '2-',
       '2',
+      '2+',
+      '3-',
       '3',
+      '3+',
+      '4-',
       '4',
+      '4+',
+      '5-',
       '5',
+      '5+',
     ]);
     expect(CompetitionRuleCalculator.exponentialDifficultyValue('3'), 3.375);
+    expect(CompetitionRuleCalculator.exponentialDifficultyValue('0'), 0);
+    expect(
+      CompetitionRuleCalculator.exponentialDifficultyValue('3-'),
+      lessThan(CompetitionRuleCalculator.exponentialDifficultyValue('3')),
+    );
+    expect(
+      CompetitionRuleCalculator.exponentialDifficultyValue('3+'),
+      greaterThan(CompetitionRuleCalculator.exponentialDifficultyValue('3')),
+    );
   });
 
   test('表演赛A组与B组按规则展示独立难度类别和0至8级', () {