[ruby/reline] Add a simple test for autocomplete

https://github.com/ruby/reline/commit/11f83b2f4b

2 files changed, 22 insertions, 0 deletions

diff --git a/test/reline/yamatanooroti/multiline_repl b/test/reline/yamatanooroti/multiline_repl
index 00d4825ee3..b21ad4bd8c 100755
--- a/test/reline/yamatanooroti/multiline_repl
+++ b/test/reline/yamatanooroti/multiline_repl
@@ -35,6 +35,12 @@ opt.on('--complete') {
     %w{String ScriptError SyntaxError Signal}
   }
 }
+opt.on('--autocomplete') {
+  Reline.autocompletion = true
+  Reline.completion_proc = lambda { |target, preposing = nil, postposing = nil|
+    %w{String Struct Symbol ScriptError SyntaxError Signal}
+  }
+}
 opt.parse!(ARGV)
 
 begin
diff --git a/test/reline/yamatanooroti/test_rendering.rb b/test/reline/yamatanooroti/test_rendering.rb
index e93aa1a47d..55b122e0d8 100644
--- a/test/reline/yamatanooroti/test_rendering.rb
+++ b/test/reline/yamatanooroti/test_rendering.rb
@@ -835,6 +835,22 @@ begin
       EOC
     end
 
+    def test_autocomplete
+      start_terminal(20, 30, %W{ruby -I#{@pwd}/lib #{@pwd}/test/reline/yamatanooroti/multiline_repl --autocomplete}, startup_message: 'Multiline REPL.')
+      write("Stri")
+      close
+      assert_screen(<<~'EOC')
+        Multiline REPL.
+        prompt> Stri
+                String
+                Struct
+                Symbol
+                ScriptError
+                SyntaxError
+                Signal
+      EOC
+    end
+
     def write_inputrc(content)
       File.open(@inputrc_file, 'w') do |f|
         f.write content