ci: Run tests on PR opened

.github/workflows/test.yml

@@ -0,0 +1,29 @@
+name: Tests
+
+on:
+  pull_request:
+    branches: [main]
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        neovim-version: [stable, nightly]
+    steps:
+      - uses: actions/checkout@v4
+
+      - uses: rhysd/action-setup-vim@v1
+        with:
+          neovim: true
+          version: ${{ matrix.neovim-version }}
+
+      - name: Compile Python treesitter parser
+        run: |
+          git clone --depth 1 https://github.com/tree-sitter/tree-sitter-python /tmp/tree-sitter-python
+          mkdir -p parser
+          cc -shared -fPIC -o parser/python.so -I /tmp/tree-sitter-python/src \
+            /tmp/tree-sitter-python/src/parser.c /tmp/tree-sitter-python/src/scanner.c
+
+      - name: Run tests
+        run: make test

tests/minimal_init.lua

@@ -1,10 +1,15 @@
 local plenary_dir = "/tmp/plenary.nvim"
-local ts_dir = vim.fn.stdpath("data") .. "/lazy/nvim-treesitter"
+local ts_dirs = {
+  vim.fn.stdpath("data") .. "/lazy/nvim-treesitter",
+  "/tmp/nvim-treesitter",
+}
 
 vim.opt.runtimepath:append(".")
 vim.opt.runtimepath:append(plenary_dir)
-if vim.fn.isdirectory(ts_dir) == 1 then
-  vim.opt.runtimepath:append(ts_dir)
+for _, ts_dir in ipairs(ts_dirs) do
+  if vim.fn.isdirectory(ts_dir) == 1 then
+    vim.opt.runtimepath:append(ts_dir)
+  end
 end
 
 vim.cmd("runtime plugin/plenary.vim")