Fix ArgumentError in aliased macro

Closes: https://github.com/ruby/ruby/pull/2221

1 files changed, 34 insertions, 0 deletions

diff --git a/test/reline/test_macro.rb b/test/reline/test_macro.rb
new file mode 100644
index 0000000000..7d92b32cba
--- /dev/null
+++ b/test/reline/test_macro.rb
@@ -0,0 +1,34 @@
+require_relative 'helper'
+
+class Reline::MacroTest < Reline::TestCase
+  def setup
+    @config = Reline::Config.new
+    @line_editor = Reline::LineEditor.new(@config)
+    @line_editor.instance_variable_set(:@screen_size, [24, 80])
+    @line_editor.output = File.open(IO::NULL, "w")
+  end
+
+  def input_key(char, combined_char = char, with_meta = false)
+    @line_editor.input_key(Reline::Key.new(char, combined_char, with_meta))
+  end
+
+  def input(str)
+    str.each_byte {|c| input_key(c)}
+  end
+
+  def test_simple_input
+    input('abc')
+    assert_equal 'abc', @line_editor.line
+  end
+
+  def test_alias
+    class << @line_editor
+      alias delete_char ed_delete_prev_char
+    end
+    input('abc')
+    assert_nothing_raised(ArgumentError) {
+      input_key(:delete_char)
+    }
+    assert_equal 'ab', @line_editor.line
+  end
+end