1 files changed, 131 insertions, 0 deletions
diff --git a/test/functional/legacy/filechanged_spec.lua b/test/functional/legacy/filechanged_spec.lua
new file mode 100644
index 0000000000..ecb861098c
--- /dev/null
+++ b/test/functional/legacy/filechanged_spec.lua
@@ -0,0 +1,131 @@
+local helpers = require('test.functional.helpers')(after_each)
+local clear, source = helpers.clear, helpers.source
+local call, eq, meths = helpers.call, helpers.eq, helpers.meths
+
+local function expected_empty()
+  eq({}, meths.get_vvar('errors'))
+end
+
+describe('file changed dialog', function()
+  before_each(function()
+    clear()
+    meths.ui_attach(80, 24, {})
+    meths.set_option('autoread', false)
+    meths.set_option('fsync', true)
+  end)
+
+  it('works', function()
+    if helpers.pending_win32(pending) then return end
+    source([[
+      func Test_file_changed_dialog()
+        au! FileChangedShell
+
+        new Xchanged_d
+        call setline(1, 'reload this')
+        write
+        " Need to wait until the timestamp would change by at least a second.
+        sleep 2
+        silent !echo 'extra line' >>Xchanged_d
+        call nvim_input('L')
+        checktime
+        call assert_match('W11:', v:warningmsg)
+        call assert_equal(2, line('$'))
+        call assert_equal('reload this', getline(1))
+        call assert_equal('extra line', getline(2))
+
+        " delete buffer, only shows an error, no prompt
+        silent !rm Xchanged_d
+        checktime
+        call assert_match('E211:', v:warningmsg)
+        call assert_equal(2, line('$'))
+        call assert_equal('extra line', getline(2))
+        let v:warningmsg = 'empty'
+
+        " change buffer, recreate the file and reload
+        call setline(1, 'buffer is changed')
+        silent !echo 'new line' >Xchanged_d
+        call nvim_input('L')
+        checktime
+        call assert_match('W12:', v:warningmsg)
+        call assert_equal(1, line('$'))
+        call assert_equal('new line', getline(1))
+
+        " Only mode changed, reload
+        silent !chmod +x Xchanged_d
+        call nvim_input('L')
+        checktime
+        call assert_match('W16:', v:warningmsg)
+        call assert_equal(1, line('$'))
+        call assert_equal('new line', getline(1))
+
+        " Only time changed, no prompt
+        sleep 2
+        silent !touch Xchanged_d
+        let v:warningmsg = ''
+        checktime Xchanged_d
+        call assert_equal('', v:warningmsg)
+        call assert_equal(1, line('$'))
+        call assert_equal('new line', getline(1))
+
+        bwipe!
+        call delete('Xchanged_d')
+      endfunc
+    ]])
+    call('Test_file_changed_dialog')
+    expected_empty()
+  end)
+
+  it('works with FileChangedShell', function()
+    source([[
+      func Test_FileChangedShell_edit_dialog()
+        new Xchanged_r
+        call setline(1, 'reload this')
+        set fileformat=unix
+        silent write  " Use :silent to prevent a hit-enter prompt
+
+        " File format changed, reload (content only) via prompt
+        augroup testreload
+          au!
+          au FileChangedShell Xchanged_r let g:reason = v:fcs_reason | let v:fcs_choice = 'ask'
+        augroup END
+        call assert_equal(&fileformat, 'unix')
+        sleep 10m  " make the test less flaky in Nvim
+        call writefile(["line1\r", "line2\r"], 'Xchanged_r')
+        let g:reason = ''
+        call nvim_input('L') " load file content only
+        checktime
+        call assert_equal('changed', g:reason)
+        call assert_equal(&fileformat, 'unix')
+        call assert_equal("line1\r", getline(1))
+        call assert_equal("line2\r", getline(2))
+        %s/\r
+        silent write  " Use :silent to prevent a hit-enter prompt
+
+        " File format changed, reload (file and options) via prompt
+        augroup testreload
+          au!
+          au FileChangedShell Xchanged_r let g:reason = v:fcs_reason | let v:fcs_choice = 'ask'
+        augroup END
+        call assert_equal(&fileformat, 'unix')
+        sleep 10m  " make the test less flaky in Nvim
+        call writefile(["line1\r", "line2\r"], 'Xchanged_r')
+        let g:reason = ''
+        call nvim_input('a') " load file content and options
+        checktime
+        call assert_equal('changed', g:reason)
+        call assert_equal(&fileformat, 'dos')
+        call assert_equal("line1", getline(1))
+        call assert_equal("line2", getline(2))
+        set fileformat=unix
+        silent write  " Use :silent to prevent a hit-enter prompt
+
+        au! testreload
+        bwipe!
+        call delete(undofile('Xchanged_r'))
+        call delete('Xchanged_r')
+      endfunc
+    ]])
+    call('Test_FileChangedShell_edit_dialog')
+    expected_empty()
+  end)
+end)