change-preview-window to take multiple option sets separated by '|'

So you can "rotate" through the different options with a single binding.

  fzf --preview 'cat {}' \
      --bind 'ctrl-/:change-preview-window(70%|down,40%,border-horizontal|hidden|)'

Close #2376

1 files changed, 17 insertions, 0 deletions

diff --git a/test/test_go.rb b/test/test_go.rb
index 3fc66f94..95759bfa 100755
--- a/test/test_go.rb
+++ b/test/test_go.rb
@@ -2191,6 +2191,23 @@ class TestGoFZF < TestBase
       assert_equal '  3', lines[1]
     end
   end
+
+  def test_change_preview_window_rotate
+    tmux.send_keys "seq 100 | #{FZF} --preview-window left,border-none --preview 'echo hello' --bind '" \
+      "a:change-preview-window(right|down|up|hidden|)'", :Enter
+    3.times do
+      tmux.until { |lines| lines[0].start_with?('hello') }
+      tmux.send_keys 'a'
+      tmux.until { |lines| lines[0].end_with?('hello') }
+      tmux.send_keys 'a'
+      tmux.until { |lines| lines[-1].start_with?('hello') }
+      tmux.send_keys 'a'
+      tmux.until { |lines| assert_equal 'hello', lines[0] }
+      tmux.send_keys 'a'
+      tmux.until { |lines| refute_includes lines[0], 'hello' }
+      tmux.send_keys 'a'
+    end
+  end
 end
 
 module TestShell