more make_relative tests

Author: jamestrew

lua/plenary/path2.lua

@@ -67,9 +67,6 @@
 ---
 --- - `find_upwards` returns `nil` if file not found rather than an empty string
 
--- TODO: could probably do with more `make_relative` tests
---        - walk up close to root
---        - add "walk_up" in test name
 -- TODO: add windows test for path2_spec only?
 
 local bit = require "plenary.bit"

tests/plenary/path2_spec.lua

@@ -341,12 +341,19 @@ describe("Path2", function()
       end)
     end)
 
-    it_cross_plat("can walk upwards out of current subpath", function()
+    it_cross_plat("can walk_up out of current subpath", function()
       local p = Path:new { "foo", "bar", "baz" }
       local cwd = Path:new { "foo", "foo_inner" }
       local expect = Path:new { "..", "bar", "baz" }
       assert.are.same(expect.filename, p:make_relative(cwd, true))
     end)
+
+    it_cross_plat("can walk_up to root", function()
+      local p = Path:new { root(), "foo", "bar", "baz" }
+      local cwd = Path:new { root(), "def" }
+      local expect = Path:new { "..", "foo", "bar", "baz" }
+      assert.are.same(expect.filename, p:make_relative(cwd, true))
+    end)
   end)
 
   describe(":shorten", function()