ci: add initial util test

.github/workflows/ci.yml

@@ -3,8 +3,30 @@ name: CI
 on: [push, pull_request]
 
 jobs:
+  tests:
+    strategy:
+      matrix:
+        os: [ubuntu-latest, windows-latest, macos-latest]
+    runs-on: ${{ matrix.os }}
+    steps:
+      - uses: actions/checkout@v3
+      - name: Install Neovim
+        shell: bash
+        run: |
+          mkdir -p /tmp/nvim
+          wget -q https://github.com/neovim/neovim/releases/download/nightly/nvim.appimage -O /tmp/nvim/nvim.appimage
+          cd /tmp/nvim
+          chmod a+x ./nvim.appimage
+          ./nvim.appimage --appimage-extract
+          echo "/tmp/nvim/squashfs-root/usr/bin/" >> $GITHUB_PATH
+      - name: Run Tests
+        run: |
+          nvim --version
+          [ ! -d tests ] && exit 0
+          nvim --headless -u tests/init.lua -c "PlenaryBustedDirectory tests/ {minimal_init = 'tests/init.lua', sequential = true}"
   docs:
     runs-on: ubuntu-latest
+    needs: tests
     if: ${{ github.ref == 'refs/heads/main' }}
     steps:
       - uses: actions/checkout@v2

.gitignore

@@ -1,2 +1,2 @@
-*.md
+.tests
 doc/tags

tests/init.lua

@@ -0,0 +1,33 @@
+local M = {}
+
+function M.root(root)
+  local f = debug.getinfo(1, "S").source:sub(2)
+  return vim.fn.fnamemodify(f, ":p:h:h") .. "/" .. (root or "")
+end
+
+---@param plugin string
+function M.load(plugin)
+  local name = plugin:match(".*/(.*)")
+  local package_root = M.root(".tests/site/pack/deps/start/")
+  if not vim.loop.fs_stat(package_root .. name) then
+    print("Installing " .. plugin)
+    vim.fn.mkdir(package_root, "p")
+    vim.fn.system({
+      "git",
+      "clone",
+      "--depth=1",
+      "https://github.com/" .. plugin .. ".git",
+      package_root .. "/" .. name,
+    })
+  end
+end
+
+function M.setup()
+  vim.cmd([[set runtimepath=$VIMRUNTIME]])
+  vim.opt.runtimepath:append(M.root())
+  vim.opt.packpath = { M.root(".tests/site") }
+
+  M.load("nvim-lua/plenary.nvim")
+end
+
+M.setup()

tests/run

@@ -0,0 +1,3 @@
+#!/bin/sh
+
+nvim --headless -u tests/init.lua -c "PlenaryBustedDirectory tests/ {minimal_init = 'tests/init.lua', sequential = true}"

tests/util_spec.lua

@@ -0,0 +1,8 @@
+local util = require("img-clip.util")
+
+describe("util", function()
+  it("can get the directory path from the file path", function()
+    local dir_path = util.get_dir_path_from_filepath("/home/user/project/image.png")
+    assert.same("/home/user/project/", dir_path)
+  end)
+end)