1 files changed, 20 insertions, 0 deletions
diff --git a/test/did_you_mean/spell_checking/test_pattern_key_name_check.rb b/test/did_you_mean/spell_checking/test_pattern_key_name_check.rb
new file mode 100644
index 0000000000..10f973802b
--- /dev/null
+++ b/test/did_you_mean/spell_checking/test_pattern_key_name_check.rb
@@ -0,0 +1,20 @@
+require_relative '../helper'
+
+return if !defined?(::NoMatchingPatternKeyError)
+
+class PatternKeyNameCheckTest < Test::Unit::TestCase
+  include DidYouMean::TestHelper
+
+  def test_corrects_hash_key_name_with_single_pattern_match
+    error = assert_raise(NoMatchingPatternKeyError) do
+      eval(<<~RUBY, binding, __FILE__, __LINE__)
+        hash = {foo: 1, bar: 2, baz: 3}
+        hash => {fooo:}
+        fooo = 1 # suppress "unused variable: fooo" warning
+      RUBY
+    end
+
+    assert_correction ":foo", error.corrections
+    assert_match "Did you mean?  :foo", get_message(error)
+  end
+end