Add regression tests for lua support

Change Dockerfile to install lua, luajit and love and also to install
nodejs 12 needed to build the lua debug adapter. Create the
love-headless test in support/test/lua to test love without an x server.

.github/workflows/build.yaml

@@ -86,7 +86,7 @@ jobs:
     - run: |
         brew update-reset
         brew doctor || true
-        for p in macvim tcl-tk llvm; do
+        for p in macvim tcl-tk llvm lua luajit love; do
           brew install $p
           brew outdated $p || brew upgrade $p
         done

.gitignore

@@ -6,6 +6,7 @@ tests/*.res
 tests/messages
 tests/debuglog
 test.log
+*.testlog
 gadgets/
 package/
 *.pyc

README.md

@@ -141,10 +141,10 @@ runtime dependencies). They are categorised by their level of support:
 | Go                 | Tested       | `--enable-go`                    | vscode-go                          | Go, [Delve][]                              |
 | TCL                | Supported    | `--all` or `--enable-tcl`        | tclpro                             | TCL 8.5                                    |
 | Bourne Shell       | Supported    | `--all` or `--enable-bash`       | vscode-bash-debug                  | Bash v??                                   |
+| Lua                | Supported    | `--all` or `--enable-lua`        | local-lua-debugger-vscode          | Node >=12.13.0, Npm, Lua interpreter       |
 | Node.js            | Supported    | `--force-enable-node`            | vscode-node-debug2                 | 6 < Node < 12, Npm                         |
 | Javascript         | Supported    | `--force-enable-chrome`          | debugger-for-chrome                | Chrome                                     |
 | Java               | Supported    | `--force-enable-java  `          | vscode-java-debug                  | Compatible LSP plugin (see [later](#java)) |
-| Lua                | Supported    | `--force-enable-lua`             | local-lua-debugger-vscode          | Node, Npm, Lua interpreter                 |
 | C# (dotnet core)   | Experimental | `--force-enable-csharp`          | netcoredbg                         | DotNet core                                |
 | C# (mono)          | Experimental | `--force-enable-csharp`          | vscode-mono-debug                  | Mono                                       |
 | Python.legacy      | Legacy       | `--force-enable-python.legacy`   | vscode-python                      | Node 10, Python 2.7 or Python 3            |
@@ -1419,7 +1419,7 @@ Lua is supported through
 This debugger uses stdio to communicate with the running process, so calls to
 `io.read` will cause problems.
 
-* `./install_gadget.py --force-enable-lua` or `:VimspectorInstall local-lua-debugger-vscode`
+* `./install_gadget.py --enable-lua` or `:VimspectorInstall local-lua-debugger-vscode`
 * Examples: `support/test/lua/simple` and `support/test/lua/love`
 
 ```json

python3/vimspector/gadgets.py

@@ -497,10 +497,10 @@ GADGETS = {
   },
   'local-lua-debugger-vscode': {
     'language': 'lua',
-    'enabled': False,
+    'enabled': True,
     'repo': {
       'url': 'https://github.com/tomblind/local-lua-debugger-vscode.git',
-      'ref': 'release-0.2.0'
+      'ref': 'release-${version}'
     },
     'all': {
       'version': '0.2.0',

support/test/lua/love-headless/.vimspector.json

@@ -0,0 +1,17 @@
+{
+  "$schema": "https://puremourning.github.io/vimspector/schema/vimspector.schema.json#",
+  "configurations": {
+    "love": {
+      "adapter": "lua-local",
+      "configuration": {
+        "request": "launch",
+        "type": "lua-local",
+        "cwd": "${workspaceFolder}",
+        "program": {
+          "command": "love"
+        },
+        "args": ["${workspaceFolder}"]
+      }
+    }
+  }
+}

support/test/lua/love-headless/conf.lua

@@ -0,0 +1,12 @@
+function love.conf(t)
+    t.modules.audio = false
+    t.modules.font = false
+    t.modules.graphics = false
+    t.modules.image = false
+    t.modules.mouse = false
+    t.modules.physics = false
+    t.modules.sound = false
+    t.modules.touch = false
+    t.modules.video = false
+    t.modules.window = false
+end

support/test/lua/love-headless/main.lua

@@ -0,0 +1,10 @@
+if pcall(require, 'lldebugger') then
+  require('lldebugger').start()
+end
+
+local time = 0
+
+function love.update(dt)
+  time = time + dt
+  love.event.quit()
+end

tests/ci/image/Dockerfile

@@ -4,6 +4,11 @@ ENV DEBIAN_FRONTEND=noninteractive
 ENV LC_ALL C.UTF-8
 
 RUN apt-get update && \
+  apt install -y curl dirmngr apt-transport-https lsb-release ca-certificates \
+                 software-properties-common && \
+  curl -sL https://deb.nodesource.com/setup_12.x | bash - && \
+  add-apt-repository ppa:bartbes/love-stable -y && \
+  apt-get update && \
   apt-get -y dist-upgrade && \
   apt-get -y install python3-dev \
                      python3-pip \
@@ -17,9 +22,10 @@ RUN apt-get update && \
                      tcllib \
                      gdb \
                      lldb \
-                     curl \
                      nodejs \
-                     npm && \
+                     lua5.1 \
+                     luajit \
+                     love && \
   apt-get -y autoremove
 
 RUN ln -fs /usr/share/zoneinfo/Europe/London /etc/localtime && \

tests/language_lua.test.vim

@@ -0,0 +1,84 @@
+function! SetUp()
+  let g:vimspector_enable_mappings = 'HUMAN'
+  call vimspector#test#setup#SetUpWithMappings( v:none )
+endfunction
+
+function! ClearDown()
+  call vimspector#test#setup#ClearDown()
+endfunction
+
+
+function! BaseTest( configuration )
+  let fn='simple.lua'
+  lcd ../support/test/lua/simple
+  exe 'edit ' . fn
+
+  call vimspector#SetLineBreakpoint( fn, 9 )
+  call vimspector#LaunchWithSettings( { 'configuration': a:configuration } )
+
+  " This debugger is ignoring stopOnEntry when not running a custom executable
+  " and always stopping on the first line after setting the hook. This first
+  " check assumes that behavior.
+  call vimspector#test#signs#AssertCursorIsAtLineInBuffer( fn, 5, 1 )
+  call WaitForAssert( {->
+        \ vimspector#test#signs#AssertPCIsAtLineInBuffer( fn, 5 )
+        \ } )
+  " Continue
+  call feedkeys( "\<F5>", 'xt' )
+
+  call vimspector#test#signs#AssertCursorIsAtLineInBuffer( fn, 9, 1 )
+  call WaitForAssert( {->
+        \ vimspector#test#signs#AssertPCIsAtLineInBuffer( fn, 9 )
+        \ } )
+
+  " Step
+  call feedkeys( "\<F10>", 'xt' )
+
+  call vimspector#test#signs#AssertCursorIsAtLineInBuffer( fn, 10, 1 )
+  call WaitForAssert( {->
+        \ vimspector#test#signs#AssertPCIsAtLineInBuffer( fn, 10 )
+        \ } )
+
+  call vimspector#test#setup#Reset()
+
+  lcd -
+  %bwipeout!
+endfunction
+
+
+function! Test_Lua_Simple()
+  call BaseTest( 'lua' )
+endfunction
+
+
+function! Test_Lua_Luajit()
+  call BaseTest( 'luajit' )
+endfunction
+
+
+function! Test_Lua_Love()
+  let fn='main.lua'
+  lcd ../support/test/lua/love-headless
+  exe 'edit ' . fn
+
+  call vimspector#SetLineBreakpoint( fn, 8 )
+  call vimspector#LaunchWithSettings( { 'configuration': 'love' } )
+
+  call vimspector#test#signs#AssertCursorIsAtLineInBuffer( fn, 8, 1 )
+  call WaitForAssert( {->
+        \ vimspector#test#signs#AssertPCIsAtLineInBuffer( fn, 8 )
+        \ } )
+
+  " Step
+  call feedkeys( "\<F10>", 'xt' )
+
+  call vimspector#test#signs#AssertCursorIsAtLineInBuffer( fn, 9, 1 )
+  call WaitForAssert( {->
+        \ vimspector#test#signs#AssertPCIsAtLineInBuffer( fn, 9 )
+        \ } )
+
+  call vimspector#test#setup#Reset()
+
+  lcd -
+  %bwipeout!
+endfunction