[ruby/prism] Handle escapes in named capture names

https://github.com/ruby/prism/commit/b4b7a69ce7

1 files changed, 29 insertions, 0 deletions

diff --git a/test/prism/result/named_capture_test.rb b/test/prism/result/named_capture_test.rb
new file mode 100644
index 0000000000..36cb910899
--- /dev/null
+++ b/test/prism/result/named_capture_test.rb
@@ -0,0 +1,29 @@
+# frozen_string_literal: true
+
+require_relative "../test_helper"
+
+module Prism
+  class NamedCaptureTest < TestCase
+    def test_hex_escapes
+      assert_equal :😀, parse_name("\\xf0\\x9f\\x98\\x80")
+    end
+
+    def test_unicode_escape
+      assert_equal :し, parse_name("\\u3057")
+    end
+
+    def test_unicode_escapes_bracess
+      assert_equal :😀, parse_name("\\u{1f600}")
+    end
+
+    def test_octal_escapes
+      assert_equal :😀, parse_name("\\xf0\\x9f\\x98\\200")
+    end
+
+    private
+
+    def parse_name(content)
+      Prism.parse_statement("/(?<#{content}>)/ =~ ''").targets.first.name
+    end
+  end
+end