test: simplify platform detection (#21020)

Extend the capabilities of is_os to detect more platforms such as
freebsd and openbsd. Also remove `iswin()` helper function as it can be
replaced by `is_os("win")`.

1 files changed, 6 insertions, 6 deletions

diff --git a/test/functional/terminal/cursor_spec.lua b/test/functional/terminal/cursor_spec.lua
index fdd7b9407b..98ac03211a 100644
--- a/test/functional/terminal/cursor_spec.lua
+++ b/test/functional/terminal/cursor_spec.lua
@@ -9,7 +9,7 @@ local matches = helpers.matches
 local feed_command = helpers.feed_command
 local hide_cursor = thelpers.hide_cursor
 local show_cursor = thelpers.show_cursor
-local iswin = helpers.iswin
+local is_os = helpers.is_os
 local skip = helpers.skip
 
 describe(':terminal cursor', function()
@@ -90,7 +90,7 @@ describe(':terminal cursor', function()
 
   describe('when invisible', function()
     it('is not highlighted and is detached from screen cursor', function()
-      skip(iswin())
+      skip(is_os('win'))
       hide_cursor()
       screen:expect([[
         tty ready                                         |
@@ -363,7 +363,7 @@ describe('buffer cursor position is correct in terminal without number column',
   end)
 
   describe('in a line with single-cell composed multibyte characters and no trailing spaces,', function()
-    if skip(iswin(), "Encoding problem?") then return end
+    if skip(is_os('win'), "Encoding problem?") then return end
 
     before_each(function()
       setup_ex_register('µ̳µ̳µ̳µ̳µ̳µ̳µ̳µ̳')
@@ -446,7 +446,7 @@ describe('buffer cursor position is correct in terminal without number column',
   end)
 
   describe('in a line with double-cell multibyte characters and no trailing spaces,', function()
-    skip(iswin(), "Encoding problem?")
+    skip(is_os('win'), "Encoding problem?")
 
     before_each(function()
       setup_ex_register('哦哦哦哦哦哦哦哦')
@@ -743,7 +743,7 @@ describe('buffer cursor position is correct in terminal with number column', fun
   end)
 
   describe('in a line with single-cell composed multibyte characters and no trailing spaces,', function()
-    if skip(iswin(), "Encoding problem?") then return end
+    if skip(is_os('win'), "Encoding problem?") then return end
 
     before_each(function()
       setup_ex_register('µ̳µ̳µ̳µ̳µ̳µ̳µ̳µ̳')
@@ -826,7 +826,7 @@ describe('buffer cursor position is correct in terminal with number column', fun
   end)
 
   describe('in a line with double-cell multibyte characters and no trailing spaces,', function()
-    skip(iswin(), "Encoding problem?")
+    skip(is_os('win'), "Encoding problem?")
 
     before_each(function()
       setup_ex_register('哦哦哦哦哦哦哦哦')