[ruby/reline] Add tests that column of dialog with scrollbar is moved without garbase

https://github.com/ruby/reline/commit/45c70d6222

2 files changed, 36 insertions, 1 deletions

diff --git a/test/reline/yamatanooroti/multiline_repl b/test/reline/yamatanooroti/multiline_repl
index 49c7a56074..28630210b6 100755
--- a/test/reline/yamatanooroti/multiline_repl
+++ b/test/reline/yamatanooroti/multiline_repl
@@ -70,7 +70,11 @@ opt.on('--dialog VAL') { |v|
       dialog.trap_key = [?j.ord]
       height = 4
     end
-    Reline::DialogRenderInfo.new(pos: cursor_pos, contents: contents, height: height, pointer: context.pointer)
+    scrollbar = false
+    if v.include?('scrollbar')
+      scrollbar = true
+    end
+    Reline::DialogRenderInfo.new(pos: cursor_pos, contents: contents, height: height, pointer: context.pointer, scrollbar: scrollbar)
   }, Struct.new(:pointer).new)
 }
 opt.on('--complete') {
diff --git a/test/reline/yamatanooroti/test_rendering.rb b/test/reline/yamatanooroti/test_rendering.rb
index 5b4cf766f5..8fa436ab22 100644
--- a/test/reline/yamatanooroti/test_rendering.rb
+++ b/test/reline/yamatanooroti/test_rendering.rb
@@ -939,6 +939,37 @@ begin
       EOC
     end
 
+    def test_simple_dialog_scrollbar_with_moving_to_right
+      start_terminal(20, 50, %W{ruby -I#{@pwd}/lib #{@pwd}/test/reline/yamatanooroti/multiline_repl --dialog long,scrollkey,scrollbar}, startup_message: 'Multiline REPL.')
+      6.times{ write('j') }
+      write('a')
+      close
+      assert_screen(<<~'EOC')
+        Multiline REPL.
+        prompt> a
+                 source programming ▄
+                 language with a    █
+                 focus on simplicity
+                 and productivity.
+      EOC
+    end
+
+    def test_simple_dialog_scrollbar_with_moving_to_left
+      start_terminal(20, 50, %W{ruby -I#{@pwd}/lib #{@pwd}/test/reline/yamatanooroti/multiline_repl --dialog long,scrollkey,scrollbar}, startup_message: 'Multiline REPL.')
+      write('a')
+      6.times{ write('j') }
+      write("\C-h")
+      close
+      assert_screen(<<~'EOC')
+        Multiline REPL.
+        prompt>
+                source programming ▄
+                language with a    █
+                focus on simplicity
+                and productivity.
+      EOC
+    end
+
     def test_autocomplete_empty
       start_terminal(20, 30, %W{ruby -I#{@pwd}/lib #{@pwd}/test/reline/yamatanooroti/multiline_repl --autocomplete}, startup_message: 'Multiline REPL.')
       write('Street')