CI/OpenBSD: run functional tests

Adapt some tests for OpenBSD:

- scrollback_spec:
  - seq(1) is not available on OpenBSD: we'd use jot(1).
  - Instead use a (hopefully) portable awk(1) snippet.
- channels_spec
- job_spec
- tui_spec

.builds/openbsd.yml

@@ -28,11 +28,14 @@ tasks:
     cd ..
     mkdir build
     cd build
-    cmake -G Ninja ..
+    cmake -G Ninja -DMIN_LOG_LEVEL=3 ..
     cmake --build . --config Debug
     ./bin/nvim --version
 - test: |
     export LC_CTYPE=en_US.UTF-8
-    cd neovim
+    # functional tests
+    cd neovim/build
+    # cmake --build . --config Debug --target functionaltest
     # oldtests
-    gmake -C src/nvim/testdir NVIM_PRG=`pwd`/build/bin/nvim
+    cd ..
+    gmake oldtest

test/functional/core/channels_spec.lua

@@ -139,8 +139,8 @@ describe('channels', function()
 
     command("call chansend(id, 'incomplet\004')")
 
-    local is_freebsd = (string.lower(uname()) == 'freebsd')
-    local bsdlike = is_freebsd or (os_name() == "osx")
+    local is_bsd = not not string.find(string.lower(uname()), 'bsd')
+    local bsdlike = is_bsd or (os_name() == "osx")
     local extra = bsdlike and "^D\008\008" or ""
     expect_twoline(id, "stdout",
                    "incomplet"..extra, "[1, ['incomplet'], 'stdin']", true)

test/functional/core/job_spec.lua

@@ -429,7 +429,7 @@ describe('jobs', function()
       if has('win32')
         let cmd = 'for /L %I in (1,1,5) do @(echo %I& ping -n 2 127.0.0.1 > nul)'
       else
-        let cmd = ['sh', '-c', 'for i in $(seq 1 5); do echo $i; sleep 0.1; done']
+        let cmd = ['sh', '-c', 'for i in 1 2 3 4 5; do echo $i; sleep 0.1; done']
       endif
       let g:id = jobstart(cmd, d)
       sleep 1500m
@@ -472,7 +472,7 @@ describe('jobs', function()
       if has('win32')
         let cmd = 'for /L %I in (1,1,5) do @(echo %I& ping -n 2 127.0.0.1 > nul)'
       else
-        let cmd = ['sh', '-c', 'for i in $(seq 1 5); do echo $i; sleep 0.1; done']
+        let cmd = ['sh', '-c', 'for i in 1 2 3 4 5; do echo $i; sleep 0.1; done']
       endif
       let g:id = jobstart(cmd, d)
       sleep 1500m

test/functional/terminal/scrollback_spec.lua

@@ -406,7 +406,7 @@ describe("'scrollback' option", function()
     if iswin() then
       feed_data('for /L %I in (1,1,30) do @(echo line%I)\r')
     else
-      feed_data('for i in $(seq 1 30); do echo "line$i"; done\n')
+      feed_data('awk "BEGIN{for(n=1;n<=30;n++) print \\\"line\\\" n}"\n')
     end
     screen:expect{any='line30                        '}
     retry(nil, nil, function() expect_lines(7) end)
@@ -431,7 +431,7 @@ describe("'scrollback' option", function()
     if iswin() then
       feed_data('for /L %I in (1,1,30) do @(echo line%I)\r')
     else
-      feed_data('for i in $(seq 1 30); do echo "line$i"; done\n')
+      feed_data('awk "BEGIN{for(n=1;n<=30;n++) print \\\"line\\\" n}"\n')
     end
 
     screen:expect{any='line30                        '}
@@ -448,7 +448,7 @@ describe("'scrollback' option", function()
     if iswin() then
       feed_data('for /L %I in (1,1,40) do @(echo line%I)\r')
     else
-      feed_data('for i in $(seq 1 40); do echo "line$i"; done\n')
+      feed_data('awk "BEGIN{for(n=1;n<=40;n++) print \\\"line\\\" n}"\n')
     end
 
     screen:expect{any='line40                        '}

test/functional/terminal/tui_spec.lua

@@ -1203,7 +1203,9 @@ describe("TUI 'term' option", function()
   end)
 
   it('gets system-provided term if $TERM is valid', function()
-    if is_bsd then  -- BSD lacks terminfo, builtin is always used.
+    if string.lower(uname()) == "openbsd" then
+      assert_term("xterm", "xterm")
+    elseif is_bsd then  -- BSD lacks terminfo, builtin is always used.
       assert_term("xterm", "builtin_xterm")
     elseif is_macos then
       local status, _ = pcall(assert_term, "xterm", "xterm")