tests: Migrate legacy test textobjects

test/functional/legacy/textobjects_spec.lua

@@ -0,0 +1,61 @@
+local helpers = require('test.functional.helpers')
+local call = helpers.call
+local clear = helpers.clear
+local execute = helpers.execute
+local expect = helpers.expect
+local source = helpers.source
+
+describe('Text object', function()
+  before_each(function()
+    clear()
+    execute('set shada=')
+    source([[
+      function SelectionOut(data)
+        new
+        call setline(1, a:data)
+        call setreg('"', '')
+        normal! ggfrmavi)y
+        $put =getreg('\"')
+        call setreg('"', '')
+        normal! `afbmavi)y
+        $put =getreg('\"')
+        call setreg('"', '')
+        normal! `afgmavi)y
+        $put =getreg('\"')
+      endfunction
+      ]])
+  end)
+
+  it('Test for vi) without cpo-M', function()
+    execute('set cpo-=M')
+    call('SelectionOut', '(red \\(blue) green)')
+
+    expect([[
+      (red \(blue) green)
+      red \(blue
+      red \(blue
+      ]])
+  end)
+
+  it('Test for vi) with cpo-M #1', function()
+    execute('set cpo+=M')
+    call('SelectionOut', '(red \\(blue) green)')
+
+    expect([[
+      (red \(blue) green)
+      red \(blue) green
+      blue
+      red \(blue) green]])
+  end)
+
+  it('Test for vi) with cpo-M #2', function()
+    execute('set cpo+=M')
+    call('SelectionOut', '(red (blue\\) green)')
+
+    expect([[
+      (red (blue\) green)
+      red (blue\) green
+      blue\
+      red (blue\) green]])
+  end)
+end)