feat(health): fold successful healthchecks #22866

Problem:
checkhealth can be noisy, but we don't want to omit info.

Solution:
Fold OK results by default, if 'foldenable' is enabled.
Resolves #22796

1 files changed, 17 insertions, 1 deletions

diff --git a/test/functional/plugin/health_spec.lua b/test/functional/plugin/health_spec.lua
index 488a213a9e..50b1d03f36 100644
--- a/test/functional/plugin/health_spec.lua
+++ b/test/functional/plugin/health_spec.lua
@@ -136,7 +136,7 @@ describe('health.vim', function()
         Bar = { foreground = Screen.colors.LightGrey, background = Screen.colors.DarkGrey },
       })
       command("checkhealth foo success1")
-      command("set nowrap laststatus=0")
+      command("set nofoldenable nowrap laststatus=0")
       screen:expect{grid=[[
         ^                                                  |
         {Bar:──────────────────────────────────────────────────}|
@@ -153,6 +153,22 @@ describe('health.vim', function()
       ]]}
     end)
 
+    it("fold healthchecks", function()
+      local screen = Screen.new(50, 7)
+      screen:attach()
+      command("checkhealth foo success1")
+      command("set nowrap laststatus=0")
+      screen:expect{grid=[[
+        ^                                                  |
+        ──────────────────────────────────────────────────|
+        +WE  4 lines: foo: ·······························|
+        ──────────────────────────────────────────────────|
+        +--  8 lines: test_plug.success1: require("test_pl|
+        ~                                                 |
+                                                          |
+      ]]}
+    end)
+
     it("gracefully handles invalid healthcheck", function()
       command("checkhealth non_existent_healthcheck")
       -- luacheck: ignore 613