legacy tests: migrate test102

src/nvim/testdir/test102.in

@@ -1,12 +0,0 @@
-Test if fnameescape is correct for special chars like !
-
-STARTTEST
-:%d
-:let fname = 'Xspa ce'
-:try | exe "w! " . fnameescape(fname) | put='Space' | endtry 
-:let fname = 'Xemark!'
-:try | exe "w! " . fnameescape(fname) | put='ExclamationMark' | endtry
-:w! test.out
-:qa!
-ENDTEST
-

src/nvim/testdir/test102.ok

@@ -1,3 +0,0 @@
-
-Space
-ExclamationMark

test/functional/legacy/102_fnameescape_spec.lua

@@ -0,0 +1,26 @@
+-- Test if fnameescape is correct for special chars like!
+
+local helpers = require('test.functional.helpers')
+local clear, feed, insert = helpers.clear, helpers.feed, helpers.insert
+local execute, expect = helpers.execute, helpers.expect
+
+describe('fnameescape', function()
+  setup(clear)
+
+  it('is working', function()
+    execute('let fname = "Xspa ce"')
+    execute('try', 'exe "w! " . fnameescape(fname)', "put='Space'", 'endtry')
+    execute('let fname = "Xemark!"')
+    execute('try', 'exe "w! " . fnameescape(fname)', "put='ExclamationMark'", 'endtry')
+
+    expect([[
+      
+      Space
+      ExclamationMark]])
+  end)
+
+  teardown(function()
+    os.remove("Xspa ce")
+    os.remove("Xemark!")
+  end)
+end)