diff --git a/test/color.lua b/test/apca.lua
similarity index 100%
rename from test/color.lua
rename to test/apca.lua
diff --git a/test/apca_spec.lua b/test/apca_spec.lua
index c4530af..82af3f5 100644
--- a/test/apca_spec.lua
+++ b/test/apca_spec.lua
@@ -1,6 +1,6 @@
 -- @ref: https://github.com/Myndex/apca-w3/blob/master/test/index.js
 
-local calc_apca = require('color').calc_apca
+local calc_apca = require('apca').calc_apca
 
 local color = { '#888888', '#FFFFFF', '#000000', '#aaaaaa', '#112233', '#ddeeff', '#112233', '#444444' }
 
diff --git a/test/de00_spec.lua b/test/de00_spec.lua
new file mode 100644
index 0000000..ef042b7
--- /dev/null
+++ b/test/de00_spec.lua
@@ -0,0 +1,4 @@
+-- local srgb2xyz = require('color').srgb2xyz
+-- local color2rgb = require('color').color2rgb
+
+-- print(vim.inspect(color2rgb('#FFFF')))
diff --git a/test/highlights_spec.lua b/test/highlights_spec.lua
index 77e5582..c1e18b7 100644
--- a/test/highlights_spec.lua
+++ b/test/highlights_spec.lua
@@ -34,7 +34,7 @@
 -- visible for many users. This minimum level should be avoided for any items
 -- important to the use, understanding, or interaction of the site.
 
-local calc_apca = require('color').calc_apca
+local calc_apca = require('apca').calc_apca
 local abs = math.abs
 
 local IGNORE = {
diff --git a/test/test.lua b/test/test.lua
index 14975f1..e82598e 100644
--- a/test/test.lua
+++ b/test/test.lua
@@ -6,7 +6,7 @@ function try(f, catch_f)
 end
 
 try(function()
-  package.path = package.path .. ';./test/color.lua'
+  package.path = package.path .. ';./test/?.lua'
 
   local cwd = vim.api.nvim_call_function('getcwd', {})
   local testdir = cwd .. '/test'