add tests for duplicate variable name check with p_rest (#966)

whitequark · Dec 28, 2023 · e368bb9 · e368bb9
1 parent 00eb452
commit e368bb9
Showing 1 changed file with 12 additions and 0 deletions.
diff --git a/test/test_parser.rb b/test/test_parser.rb
@@ -9797,6 +9797,18 @@ def test_pattern_matching_duplicate_variable_name
  %q{0 => [a, a]},
  %q{ ^ location},
  SINCE_3_0)
+
+ assert_diagnoses(
+ [:error, :duplicate_variable_name, { :name => 'a' }],
+ %q{0 in [a, *a]},
+ %q{ ^ location},
+ SINCE_3_3)
+
+ assert_diagnoses(
+ [:error, :duplicate_variable_name, { :name => 'a' }],
+ %q{0 in [*a, a, b, *b]},
+ %q{ ^ location},
+ SINCE_3_3)
  end
 
  def test_pattern_matching_duplicate_hash_keys