1 files changed, 101 insertions, 0 deletions
diff --git a/test/functional/lua/fs_spec.lua b/test/functional/lua/fs_spec.lua
new file mode 100644
index 0000000000..2bcc84db0f
--- /dev/null
+++ b/test/functional/lua/fs_spec.lua
@@ -0,0 +1,101 @@
+local helpers = require('test.functional.helpers')(after_each)
+
+local clear = helpers.clear
+local exec_lua = helpers.exec_lua
+local eq = helpers.eq
+local mkdir_p = helpers.mkdir_p
+local rmdir = helpers.rmdir
+local nvim_dir = helpers.nvim_dir
+local test_build_dir = helpers.test_build_dir
+local iswin = helpers.iswin
+local nvim_prog = helpers.nvim_prog
+
+local nvim_prog_basename = iswin() and 'nvim.exe' or 'nvim'
+
+before_each(clear)
+
+describe('vim.fs', function()
+  describe('parents()', function()
+    it('works', function()
+      local test_dir = nvim_dir .. '/test'
+      mkdir_p(test_dir)
+      local dirs = exec_lua([[
+        local test_dir, test_build_dir = ...
+        local dirs = {}
+        for dir in vim.fs.parents(test_dir .. "/foo.txt") do
+          dirs[#dirs + 1] = dir
+          if dir == test_build_dir then
+            break
+          end
+        end
+        return dirs
+      ]], test_dir, test_build_dir)
+      eq({test_dir, nvim_dir, test_build_dir}, dirs)
+      rmdir(test_dir)
+    end)
+  end)
+
+  describe('dirname()', function()
+    it('works', function()
+      eq(test_build_dir, exec_lua([[
+        local nvim_dir = ...
+        return vim.fs.dirname(nvim_dir)
+      ]], nvim_dir))
+    end)
+  end)
+
+  describe('basename()', function()
+    it('works', function()
+      eq(nvim_prog_basename, exec_lua([[
+        local nvim_prog = ...
+        return vim.fs.basename(nvim_prog)
+      ]], nvim_prog))
+    end)
+  end)
+
+  describe('dir()', function()
+    it('works', function()
+      eq(true, exec_lua([[
+        local dir, nvim = ...
+        for name, type in vim.fs.dir(dir) do
+          if name == nvim and type == 'file' then
+            return true
+          end
+        end
+        return false
+      ]], nvim_dir, nvim_prog_basename))
+    end)
+  end)
+
+  describe('find()', function()
+    it('works', function()
+      eq({test_build_dir}, exec_lua([[
+        local dir = ...
+        return vim.fs.find('build', { path = dir, upward = true, type = 'directory' })
+      ]], nvim_dir))
+      eq({nvim_prog}, exec_lua([[
+        local dir, nvim = ...
+        return vim.fs.find(nvim, { path = dir, type = 'file' })
+      ]], test_build_dir, nvim_prog_basename))
+    end)
+  end)
+
+  describe('normalize()', function()
+    it('works with backward slashes', function()
+      eq('C:/Users/jdoe', exec_lua [[ return vim.fs.normalize('C:\\Users\\jdoe') ]])
+    end)
+    it('works with ~', function()
+      if iswin() then
+        pending([[$HOME does not exist on Windows ¯\_(ツ)_/¯]])
+      end
+      eq(os.getenv('HOME') .. '/src/foo', exec_lua [[ return vim.fs.normalize('~/src/foo') ]])
+    end)
+    it('works with environment variables', function()
+      local xdg_config_home = test_build_dir .. '/.config'
+      eq(xdg_config_home .. '/nvim', exec_lua([[
+        vim.env.XDG_CONFIG_HOME = ...
+        return vim.fs.normalize('$XDG_CONFIG_HOME/nvim')
+      ]], xdg_config_home))
+    end)
+  end)
+end)