1 files changed, 76 insertions, 0 deletions
diff --git a/test/functional/terminal/edit_spec.lua b/test/functional/terminal/edit_spec.lua
new file mode 100644
index 0000000000..3ad1b33970
--- /dev/null
+++ b/test/functional/terminal/edit_spec.lua
@@ -0,0 +1,76 @@
+local helpers = require('test.functional.helpers')
+local screen = require('test.functional.ui.screen')
+
+local curbufmeths = helpers.curbufmeths
+local curwinmeths = helpers.curwinmeths
+local nvim_dir = helpers.nvim_dir
+local command = helpers.command
+local meths = helpers.meths
+local clear = helpers.clear
+local eq = helpers.eq
+
+describe(':edit term://*', function()
+  local get_screen = function(columns, lines)
+    local scr = screen.new(columns, lines)
+    scr:attach(false)
+    return scr
+  end
+
+  before_each(function()
+    clear()
+    meths.set_option('shell', nvim_dir .. '/shell-test')
+    meths.set_option('shellcmdflag', 'EXE')
+  end)
+
+  it('runs TermOpen event', function()
+    meths.set_var('termopen_runs', {})
+    command('autocmd TermOpen * :call add(g:termopen_runs, expand("<amatch>"))')
+    command('edit term://')
+    termopen_runs = meths.get_var('termopen_runs')
+    eq(1, #termopen_runs)
+    eq(termopen_runs[1], termopen_runs[1]:match('^term://.//%d+:$'))
+  end)
+
+  it('runs TermOpen early enough to respect terminal_scrollback_buffer_size', function()
+    local columns, lines = 20, 4
+    local scr = get_screen(columns, lines)
+    local rep = 'a'
+    meths.set_option('shellcmdflag', 'REP ' .. rep)
+    local rep_size = rep:byte()
+    local sb = 10
+    local gsb = 20
+    meths.set_var('terminal_scrollback_buffer_size', gsb)
+    command('autocmd TermOpen * :let b:terminal_scrollback_buffer_size = '
+            .. tostring(sb))
+    command('edit term://foobar')
+    local bufcontents = {}
+    local winheight = curwinmeths.get_height()
+    -- I have no idea why there is + 4 needed. But otherwise it works fine with 
+    -- different scrollbacks.
+    local shift = -4
+    local buf_cont_start = rep_size - 1 - sb - winheight - shift
+    local bufline = function(i) return ('%d: foobar'):format(i) end
+    for i = buf_cont_start,(rep_size - 1) do
+      bufcontents[#bufcontents + 1] = bufline(i)
+    end
+    bufcontents[#bufcontents + 1] = ''
+    bufcontents[#bufcontents + 1] = '[Process exited 0]'
+    -- Do not ask me why displayed screen is one line *before* buffer
+    -- contents: buffer starts with 87:, screen with 86:.
+    local exp_screen = '\n'
+    local did_cursor = false
+    local shift = 10
+    for i = 0,(winheight - 1) do
+      local line = bufline(buf_cont_start + i - 1)
+      exp_screen = (exp_screen
+                    .. (did_cursor and '' or '^')
+                    .. line
+                    .. (' '):rep(columns - #line)
+                    .. '|\n')
+      did_cursor = true
+    end
+    exp_screen = exp_screen .. (' '):rep(columns) .. '|\n'
+    scr:expect(exp_screen)
+    eq(bufcontents, curbufmeths.get_line_slice(1, -1, true, true))
+  end)
+end)