1 files changed, 91 insertions, 0 deletions
diff --git a/test/unit/os/users_spec.lua b/test/unit/os/users_spec.lua
new file mode 100644
index 0000000000..df5d2365c6
--- /dev/null
+++ b/test/unit/os/users_spec.lua
@@ -0,0 +1,91 @@
+local helpers = require('test.unit.helpers')
+
+local cimport = helpers.cimport
+local internalize = helpers.internalize
+local eq = helpers.eq
+local ffi = helpers.ffi
+local lib = helpers.lib
+local cstr = helpers.cstr
+local NULL = helpers.NULL
+local OK = helpers.OK
+local FAIL = helpers.FAIL
+
+local users = cimport('./src/nvim/os/os.h', 'unistd.h')
+
+function garray_new()
+  return ffi.new('garray_T[1]')
+end
+
+function garray_get_len(array)
+  return array[0].ga_len
+end
+
+function garray_get_item(array, index)
+  return (ffi.cast('void **', array[0].ga_data))[index]
+end
+
+describe('users function', function()
+  -- will probably not work on windows
+  local current_username = os.getenv('USER')
+
+  describe('os_get_usernames', function()
+    it('returns FAIL if called with NULL', function()
+      eq(FAIL, users.os_get_usernames(NULL))
+    end)
+
+    it('fills the names garray with os usernames and returns OK', function()
+      local ga_users = garray_new()
+      eq(OK, users.os_get_usernames(ga_users))
+      local user_count = garray_get_len(ga_users)
+      assert.is_true(user_count > 0)
+      local current_username_found = false
+      for i = 0, user_count - 1 do
+        local name = ffi.string((garray_get_item(ga_users, i)))
+        if name == current_username then
+          current_username_found = true
+        end
+      end
+      assert.is_true(current_username_found)
+    end)
+  end)
+
+  describe('os_get_user_name', function()
+    it('should write the username into the buffer and return OK', function()
+      local name_out = ffi.new('char[100]')
+      eq(OK, users.os_get_user_name(name_out, 100))
+      eq(current_username, ffi.string(name_out))
+    end)
+  end)
+
+  describe('os_get_uname', function()
+    it('should write the username into the buffer and return OK', function()
+      local name_out = ffi.new('char[100]')
+      local user_id = lib.getuid()
+      eq(OK, users.os_get_uname(user_id, name_out, 100))
+      eq(current_username, ffi.string(name_out))
+    end)
+
+    it('should FAIL if the userid is not found', function()
+      local name_out = ffi.new('char[100]')
+      -- hoping nobody has this uid
+      local user_id = 2342
+      eq(FAIL, users.os_get_uname(user_id, name_out, 100))
+      eq('2342', ffi.string(name_out))
+    end)
+  end)
+
+  describe('os_get_user_directory', function()
+    it('should return NULL if called with NULL', function()
+      eq(NULL, users.os_get_user_directory(NULL))
+    end)
+
+    it('should return $HOME for the current user', function()
+      local home = os.getenv('HOME')
+      eq(home, ffi.string((users.os_get_user_directory(current_username))))
+    end)
+
+    it('should return NULL if the user is not found', function()
+      eq(NULL, users.os_get_user_directory('neovim_user_not_found_test'))
+    end)
+  end)
+end)